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<?xml-stylesheet type="text/xsl" media="screen" href="/~d/styles/atom10full.xsl"?><?xml-stylesheet type="text/css" media="screen" href="http://feeds.feedburner.com/~d/styles/itemcontent.css"?><feed xmlns="http://www.w3.org/2005/Atom" xmlns:openSearch="http://a9.com/-/spec/opensearch/1.1/" xmlns:georss="http://www.georss.org/georss" xmlns:gd="http://schemas.google.com/g/2005" xmlns:feedburner="http://rssnamespace.org/feedburner/ext/1.0" gd:etag="W/&quot;DUAMQH48eCp7ImA9WxBUF00.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093</id><updated>2010-03-04T18:03:01.070+05:00</updated><title>Entertainment Ki Duniya</title><subtitle type="html">Visit this blog for full Entertainment and Knowledge.</subtitle><link rel="http://schemas.google.com/g/2005#feed" type="application/atom+xml" href="http://whitemafiya.blogspot.com/feeds/posts/default" /><link rel="alternate" type="text/html" href="http://whitemafiya.blogspot.com/" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email></author><generator version="7.00" uri="http://www.blogger.com">Blogger</generator><openSearch:totalResults>18</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>25</openSearch:itemsPerPage><atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="self" type="application/atom+xml" href="http://feeds.feedburner.com/EntertainmentKiDuniya" /><feedburner:info uri="entertainmentkiduniya" /><atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="hub" href="http://pubsubhubbub.appspot.com/" /><entry gd:etag="W/&quot;DEEFQHg5eyp7ImA9WxBUF00.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-5635986246098220271</id><published>2010-03-04T17:43:00.000+05:00</published><updated>2010-03-04T17:43:31.623+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-04T17:43:31.623+05:00</app:edited><title>Check your finger prints</title><content type="html">&lt;a name='more'&gt;&lt;/a&gt;&lt;br /&gt;
&lt;span style="color: blue; font-size: large;"&gt;&lt;strong&gt;Check your finger prints &lt;/strong&gt;&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;div class="separator" style="clear: both; text-align: center;"&gt;&lt;a href="http://1.bp.blogspot.com/_ugVAgzyXOi0/S4-qHmzB9lI/AAAAAAAAABQ/iigUizEMgGQ/s1600-h/image001.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"&gt;&lt;img border="0" height="320" kt="true" src="http://1.bp.blogspot.com/_ugVAgzyXOi0/S4-qHmzB9lI/AAAAAAAAABQ/iigUizEMgGQ/s320/image001.jpg" width="298" /&gt;&lt;/a&gt;&lt;/div&gt;&lt;div class="separator" style="clear: both; text-align: center;"&gt;&lt;br /&gt;
&lt;/div&gt;&lt;div class="separator" style="clear: both; text-align: center;"&gt;&lt;br /&gt;
&lt;/div&gt;&lt;div align="left" class="separator" style="clear: both; text-align: center;"&gt;&lt;br /&gt;
&lt;/div&gt;It is already an accepted fact that every single person in the world has a different set of fingerprints. The Chinese have devised a way to read personality &amp;amp; destiny traits by studying the waves and the circles that appear at the tips of everyone's fingers – indeed so convinced are they that in the old days the fingers of prospective daughters-in- law were carefully scrutinized by prominent families to ensure they did not unwittingly welcome women who had fingers that showed alternate circles and waves on their fingers, as it was commonly believed that such women would bring trouble into the family, being particularly difficult to control and usually very aggressive. &lt;br /&gt;
&lt;br /&gt;
In this issue of FSW we bring you some indications of destiny &amp;amp; personality traits based on the circles and waves on the five fingers of each hand. Guys should examine their left hands while women should look at their right hands.&lt;br /&gt;
Here are the two different patterns of circles and waves seen on every finger. To make a reading, look at your thumb print first, then your index finger, your middle finger, your ring finger and then your little finger in that order. This is the sequence that offers clues to your destiny &amp;amp; fortunes of your life. &lt;br /&gt;
For ease of reference we shall refer to circles as Os and to waves as Ws.&lt;br /&gt;
&lt;br /&gt;
&lt;span style="color: blue;"&gt;Fingers: OOOOO (all whorls)&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
Means: This person is very confident, has a strong character and a hot temper. He/she is an independent person. The luck of this person changes dramatically in life from one period to the next. The undoing of this person will be his/her hot temper so it is vital that this person must learn to be patient and calm. &lt;br /&gt;
&lt;br /&gt;
Shape: WWWWW (all waves)&lt;br /&gt;
&lt;br /&gt;
Means: This person is a straightforward honest person who goes with the flow. The fingers indicate someone very sensitive, who is especially suited to design and creative work. People with these fingerprint patterns tend to be shy and uncomfortable in social situations, so are not suited to work in PR, politics or any kind of work requiring them to meet people.&lt;br /&gt;
&lt;br /&gt;
Shape: OWWWO&lt;br /&gt;
&lt;br /&gt;
Means: If you can choose a prestigious working career, you will be very successful. However, you should avoid the tendency to get big-headed and you must never take your career for granted. You should also watch your back, as you tend to attract jealousy into your life and could get betrayed. Always look for long-term benefits.&lt;br /&gt;
&lt;br /&gt;
Shape: OWWOW&lt;br /&gt;
&lt;br /&gt;
Means: You will need to work harder during the early days of your career. When you reach middle and older age, you will get recognition and wealth luck. So your life gets better the older you get.&lt;br /&gt;
&lt;br /&gt;
Shape: OWOWW&lt;br /&gt;
&lt;br /&gt;
Means: It is vital that you resist the tendency to be narrow-minded in your attitudes and in the way you think and work. Try to be humble and learn as much as possible. This is how you will get influential help that brings you to the peak of your business and career life.&lt;br /&gt;
&lt;br /&gt;
Shape: WOOOO&lt;br /&gt;
&lt;br /&gt;
Means: You are a very clear-minded person. As long as you work hard, you are guaranteed to be successful. Even though you tend to be in a hurry, there will be those who help you along. You are also a person with a kind heart. &lt;br /&gt;
&lt;br /&gt;
Shape: OOOOW&lt;br /&gt;
&lt;br /&gt;
Means: Because you are kind and have an in-built polite attitude, you will easily get help from older persons and friends. You will enjoy great success in your working life and your only weakness is you don't trust people too easily. This can make you too conservative.&lt;br /&gt;
&lt;br /&gt;
Shape: OOOWW&lt;br /&gt;
&lt;br /&gt;
Means: You have a tendency to be bad tempered, and rather quick to judge. This is a shallow attitude and could easily get you onto the wrong path. If you can correct this tendency of yours, you will have great success. The potential is in you, so try to be calm in your approach.&lt;br /&gt;
&lt;br /&gt;
Shape: OWWWW&lt;br /&gt;
&lt;br /&gt;
Means: You have good character but can only become really successful in older age. Be prepared to have to work really hard during your younger and middle age periods, but you will become a successful person in older years.&lt;br /&gt;
&lt;br /&gt;
Shape: WOWWW&lt;br /&gt;
&lt;br /&gt;
Means: You are very good in the social skills. No matter what industry you are in, you like to take risk and you will always face uncertainty. Be careful as the later years of your life could bring yet more challenges. Take less risk as you get older. &lt;br /&gt;
&lt;br /&gt;
Shape: WWOWW&lt;br /&gt;
&lt;br /&gt;
Means: You are a person who has high vision and heavy responsibility. Be careful. Your visions could get you into serious difficulty. Better to stay more grounded, then your life will have greater success.&lt;br /&gt;
&lt;br /&gt;
Shape: WWWOW&lt;br /&gt;
&lt;br /&gt;
Means: You are very intelligent and will enjoy a lot of scholastic honors. You will have a smooth life and benefit from wealth luck. If you can work hard, you will become a great and successful person. &lt;br /&gt;
&lt;br /&gt;
Shape: WWWWO&lt;br /&gt;
&lt;br /&gt;
Means: You will inherit a business or property from your parents or from an older person. Even though you are a capable person and can be successful in your own business, your tendency towards impatience could get you into a lot of difficulty. &lt;br /&gt;
&lt;br /&gt;
Shape: OOWWW&lt;br /&gt;
&lt;br /&gt;
Means: You have a tendency to be proud and snobbish, although deep inside you are a kind-hearted person. Your social skills however need improving. Your relatives tend to take advantage of you.&lt;br /&gt;
&lt;br /&gt;
Shape: WOWWO&lt;br /&gt;
&lt;br /&gt;
Means: You are a deep thinking person. At a young age, you are already thinking of your future. You will enjoy a smooth and peaceful life; you will be very happy in your old age.&lt;br /&gt;
&lt;br /&gt;
Shape: WOWOO&lt;br /&gt;
&lt;br /&gt;
Means: You are a very sociable person and you enjoy the carefree kind of life going out, partying and clubbing. When you reach middle and older age, you will rely on people to support you. Be warned, if you do not prepare yourself, you might have a hard time during your older years.&lt;br /&gt;
&lt;br /&gt;
Shape: WOWOW&lt;br /&gt;
&lt;br /&gt;
Means: You are not an easy person to control or to convince, as you are something of a rebel. If you can stay focused on what you want from life, you will be successful. The problem is that you can be fickle and vague in what you really want from life.&lt;br /&gt;
&lt;br /&gt;
Shape: WWOWO&lt;br /&gt;
&lt;br /&gt;
Means: Your whole life is full of ups and downs, successes and failures. However, if you can move steadily step-by-step, you can enjoy a peaceful life as you grow into maturity.&lt;br /&gt;
&lt;br /&gt;
Shape: WWWOO&lt;br /&gt;
&lt;br /&gt;
Means: You are very kindhearted person and there will be good people in your life, as you will attract these kinds of people towards you. Work hard and you will easily reap your just rewards. You will definitely become successful.&lt;br /&gt;
&lt;br /&gt;
Shape: OWWOO&lt;br /&gt;
&lt;br /&gt;
Means: You will get recognition and become famous. Even though your life appears unstable during your earlier years of working life and you need to work hard in your thirties, when you reach maturity, your life gets better and better.&lt;br /&gt;
&lt;br /&gt;
Shape: WWOOW&lt;br /&gt;
&lt;br /&gt;
Means: You are a very capable person, but you tend to lack good judgment. You also tend to start something and then lose interest. Stay focused if you want to succeed.&lt;br /&gt;
&lt;br /&gt;
Shape: OWOOW&lt;br /&gt;
&lt;br /&gt;
Means: You are a noble person with a good character. You tend to be very helpful towards colleagues and friends so you are a popular person. Because you can think in-depth and have sensitivity towards others, you will enjoy success in the creative fields.&lt;br /&gt;
&lt;br /&gt;
Shape: OWOWO&lt;br /&gt;
&lt;br /&gt;
Means: You are blessed with a fast and formidable intellect. You work very quickly and with great effectiveness. However, your character is very aggressive and people tend to be intimidated by you. If you can correct this trait, you can rise to great heights.&lt;br /&gt;
&lt;br /&gt;
Shape: WWOOO&lt;br /&gt;
&lt;br /&gt;
Means: You are a very straightforward person. But your thinking tends to be rather naïve and shallow. Even though your suggestions are good, if you don't think through what you say, you should not be surprised if people tend to ignore your views. Your speech tends to lack power.&lt;br /&gt;
&lt;br /&gt;
Shape: OOWOW&lt;br /&gt;
&lt;br /&gt;
Means: You are a high-minded person, able to see and grab opportunities. You are best suited to work in the financial and investment fields. Your luck gets better as you grow older.&lt;br /&gt;
&lt;br /&gt;
Shape: OOWWO&lt;br /&gt;
&lt;br /&gt;
Means: You are a very honest and reputable person. You have little urge to get rich or pursue material wealth. But watch it, if you don't know how to take care of yourself, you can easily get conned and taken advantage of by people.&lt;br /&gt;
&lt;br /&gt;
Shape: OOOWO&lt;br /&gt;
&lt;br /&gt;
Means: Your social skills are good, so you attract guidance and help from influential people. Many people help you in your rise to prominence, and your luck turns fabulous in later years.&lt;br /&gt;
&lt;br /&gt;
Shape: OOWOO&lt;br /&gt;
&lt;br /&gt;
Means: You are a very brave and hardworking person. A lot of people trust you when you are young. However, unless you work at preserving your reputation, you could make enemies on your rise up and find that life becomes harder as you get older.&lt;br /&gt;
&lt;br /&gt;
Shape: OWOOO&lt;br /&gt;
&lt;br /&gt;
Means: You are a kindhearted character and easily get along with others. You are not good at doing business, but you are good as a teacher or even as a spiritual master. You can enjoy success in the academic world. &lt;br /&gt;
&lt;br /&gt;
Shape: WOOWW&lt;br /&gt;
&lt;br /&gt;
Means: You are reputable and have a peaceful character. So you are definitely someone who can become successful and recognized. However, because of your tendency towards pride, you could end up offending the wrong people.&lt;br /&gt;
&lt;br /&gt;
Shape: WOOWO&lt;br /&gt;
&lt;br /&gt;
Means: You are a simple but logical person. If you can focus on the fundamentals of life and adopt a step-by-step approach in your climb up the success ladder and not be too impatient, you will benefit from wealth luck and be honored by people.&lt;br /&gt;
&lt;br /&gt;
Shape: WOOOW&lt;br /&gt;
&lt;br /&gt;
Means: You are a straight talking person who is forthright in your approach. You are strong in character, playful but you also easily offend people. But you are also lucky because when you reach middle age, you will rise to a prominent position and your luck really changes for the better&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-5635986246098220271?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;a href="http://feedads.g.doubleclick.net/~a/_eRs0LTHG9VNWvEfYX2qMQRlJzg/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/_eRs0LTHG9VNWvEfYX2qMQRlJzg/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/EntertainmentKiDuniya/~4/IOkeG8UihPk" height="1" width="1"/&gt;</content><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/5635986246098220271?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/5635986246098220271?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/EntertainmentKiDuniya/~3/IOkeG8UihPk/check-your-finger-prints.html" title="Check your finger prints" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email><gd:extendedProperty name="OpenSocialUserId" value="17477032422373105585" /></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="http://1.bp.blogspot.com/_ugVAgzyXOi0/S4-qHmzB9lI/AAAAAAAAABQ/iigUizEMgGQ/s72-c/image001.jpg" height="72" width="72" /><feedburner:origLink>http://whitemafiya.blogspot.com/2010/03/check-your-finger-prints.html</feedburner:origLink></entry><entry gd:etag="W/&quot;DkIARH87fCp7ImA9WxBUF00.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-2447129619810754791</id><published>2010-03-04T17:04:00.001+05:00</published><updated>2010-03-04T17:09:05.104+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-04T17:09:05.104+05:00</app:edited><title>World Flag</title><content type="html">&lt;span style="color: blue; font-size: large;"&gt;&lt;/span&gt;&lt;br /&gt;
&lt;strong&gt;&lt;a name='more'&gt;&lt;/a&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;strong&gt;&lt;span style="color: blue; font-size: large;"&gt;you will find almost all the flags&lt;/span&gt; &lt;/strong&gt;&lt;br /&gt;
&lt;span style="font-size: small;"&gt;Click on the flags for large view&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;div class="separator" style="clear: both; text-align: center;"&gt;&lt;a href="http://2.bp.blogspot.com/_ugVAgzyXOi0/S4-hlwmdpJI/AAAAAAAAABI/84dMOgWj9Yo/s1600-h/flags.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"&gt;&lt;strong&gt;&lt;img border="0" height="640" kt="true" src="http://2.bp.blogspot.com/_ugVAgzyXOi0/S4-hlwmdpJI/AAAAAAAAABI/84dMOgWj9Yo/s640/flags.png" width="132" /&gt;&lt;/strong&gt;&lt;/a&gt;&lt;/div&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-2447129619810754791?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;a href="http://feedads.g.doubleclick.net/~a/ZWmNDeQfNMKCy3bTdOdYJ2ADkvc/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/ZWmNDeQfNMKCy3bTdOdYJ2ADkvc/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/EntertainmentKiDuniya/~4/gGoVyDJU7sE" height="1" width="1"/&gt;</content><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/2447129619810754791?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/2447129619810754791?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/EntertainmentKiDuniya/~3/gGoVyDJU7sE/world-flag.html" title="World Flag" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email><gd:extendedProperty name="OpenSocialUserId" value="17477032422373105585" /></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="http://2.bp.blogspot.com/_ugVAgzyXOi0/S4-hlwmdpJI/AAAAAAAAABI/84dMOgWj9Yo/s72-c/flags.png" height="72" width="72" /><feedburner:origLink>http://whitemafiya.blogspot.com/2010/03/world-flag.html</feedburner:origLink></entry><entry gd:etag="W/&quot;C0MFSXk-fSp7ImA9WxBUF00.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-6320085549185984486</id><published>2010-03-04T16:16:00.000+05:00</published><updated>2010-03-04T16:16:58.755+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-04T16:16:58.755+05:00</app:edited><title>Interesting Facts About Blood</title><content type="html">&lt;a name='more'&gt;&lt;/a&gt;&lt;strong&gt;&lt;span style="color: blue; font-size: large;"&gt;Interesting Facts About Blood&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;div&gt;&amp;nbsp;&lt;/div&gt;&lt;ul&gt;&lt;li&gt;There is no substitute for human Blood. &lt;/li&gt;
&lt;li&gt;Blood makes up about 7% of your body's weight.&lt;/li&gt;
&lt;li&gt;An average adult has about 14 to 18 pints of Blood. &lt;/li&gt;
&lt;li&gt;One standard unit or pint of Blood equals about two cups. &lt;/li&gt;
&lt;li&gt;Blood carries oxygen and nutrients to all of the body. &lt;/li&gt;
&lt;li&gt;Blood carries carbon dioxide and other waste products back to the lungs, kidneys and liver for disposal. &lt;/li&gt;
&lt;li&gt;Blood fights against infection and helps heal wounds. &lt;/li&gt;
&lt;li&gt;One unit of donated whole Blood is separated into components before use (red Blood cells, white Blood cells, plasma, platelets, etc.) &lt;/li&gt;
&lt;li&gt;There are four main Blood types: A, B, AB and O. &lt;/li&gt;
&lt;li&gt;Each Blood type is either Rh positive or negative. &lt;/li&gt;
&lt;li&gt;The three main types of cells making up our Blood are the White Blood cells, Red Blood cells and Platelets: &lt;/li&gt;
&lt;li&gt;White Blood Cells (WBCs) are the largest of the three types of cells and are responsible for fighting infections or germs. White Blood cells have a rather short life cycle, living from a few days to a few weeks. One drop of Blood can contain from 7,000 to 25,000 white Blood cells. If an invading infection fights back and persists, that number will significantly increase. &lt;/li&gt;
&lt;li&gt;Red Blood Cells (RBCs) make up approximately 40% of Blood volume, carry oxygen to the cells of your body and return to the lungs to excrete carbon dioxide. &lt;/li&gt;
&lt;li&gt;Platelets, the smallest of the Blood cells; make up 5% to 7% of total Blood volume. Platelets form a 'mesh' net to form clots in the Blood to help stop bleeding. &lt;/li&gt;
&lt;li&gt;There are five types of White Blood Cells (WBCs): &lt;/li&gt;
&lt;li&gt;basophil - acts on smooth muscle and Blood cell walls; eosiniphil - acts against infestations of parasitic larvae; lymphocyte - recognizes surface markers on cells and targets them for destruction if foreign to the body; monocyte - formed bone marrow, monocytes migrate into connective tissue and become macrophages; and, neutrophil - the first line of defense, 100 billion mature neutrophils are released into the body everyday. &lt;/li&gt;
&lt;li&gt;There are about one billion red Blood cells in a few drops of whole Blood. &lt;/li&gt;
&lt;li&gt;Red Blood cells live about 120 days in our bodies. &lt;/li&gt;
&lt;li&gt;Red Blood cells can be stored under normal conditions for up to 42 days. &lt;/li&gt;
&lt;li&gt;Frozen red Blood cells can be stored for ten years, and more. &lt;/li&gt;
&lt;li&gt;Platelets must be used within five days. &lt;/li&gt;
&lt;li&gt;Platelets are small Blood cells that assist in the process of Blood clotting helping those with leukemia and other cancers, controlling bleeding. &lt;/li&gt;
&lt;li&gt;Plasma, the fourth major component of Blood, is a sticky, pale yellow fluid mixture of water, protein and salts. It is 95% water. The other 5% is made up of nutrients, proteins and hormones. &lt;/li&gt;
&lt;li&gt;Blood Plasma constitutes 55% of the volume of human Blood. &lt;/li&gt;
&lt;li&gt;Plasma helps maintain Blood pressure, carries Blood cells, nutrients, enzymes and hormones, and supplies critical proteins for Blood clotting and immunity.&lt;/li&gt;
&lt;li&gt;Plasma can be collected from a normal healthy donor twice weekly (max. every 48 hours) and is the most frequently donor paid-for component of Blood. Plasma is often referred to as "the college students beer money." &lt;/li&gt;
&lt;li&gt;Type AB plasma has been considered as the universal Blood plasma type, and therefore AB plasma is given to patients with any Blood type. &lt;/li&gt;
&lt;li&gt;Frozen Plasma can be stored for up to one year. &lt;/li&gt;
&lt;/ul&gt;&lt;br /&gt;
&lt;ul&gt;&lt;li&gt;&amp;nbsp;&amp;nbsp;Human Blood; red Blood cells, white Blood cells, plasma and platelets are made naturally by the body in the bone marrow. &lt;/li&gt;
&lt;/ul&gt;&lt;br /&gt;
&lt;div&gt;&amp;nbsp;&lt;/div&gt;&lt;br /&gt;
&lt;div&gt;&amp;nbsp;&lt;/div&gt;&lt;br /&gt;
&lt;div&gt;&amp;nbsp;&lt;/div&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-6320085549185984486?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;a href="http://feedads.g.doubleclick.net/~a/0n6Xffs9q4uLo1r3EXBjaYqthfo/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/0n6Xffs9q4uLo1r3EXBjaYqthfo/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/EntertainmentKiDuniya/~4/kh1_3_Eo6Yc" height="1" width="1"/&gt;</content><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/6320085549185984486?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/6320085549185984486?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/EntertainmentKiDuniya/~3/kh1_3_Eo6Yc/interesting-facts-about-blood.html" title="Interesting Facts About Blood" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email><gd:extendedProperty name="OpenSocialUserId" value="17477032422373105585" /></author><feedburner:origLink>http://whitemafiya.blogspot.com/2010/03/interesting-facts-about-blood.html</feedburner:origLink></entry><entry gd:etag="W/&quot;CEQBQXkyeyp7ImA9WxBUFkk.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-6944600146444655809</id><published>2010-03-03T23:52:00.000+05:00</published><updated>2010-03-03T23:52:30.793+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-03T23:52:30.793+05:00</app:edited><title>IQ Test (Quaestions &amp; Answers)</title><content type="html">&lt;a name='more'&gt;&lt;/a&gt;Please Read under below questions, write your answers(answer number and&amp;nbsp;option )&amp;nbsp;on a paper and &lt;br /&gt;
after complete test see answers of following questions in the end of&amp;nbsp;qustion list.&lt;br /&gt;
&lt;br /&gt;
1) Which of the following rivers crosses the equator twice?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Amazon&lt;br /&gt;
&lt;br /&gt;
b) Congo&lt;br /&gt;
&lt;br /&gt;
c) Nile&lt;br /&gt;
&lt;br /&gt;
d Tigris&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
2) Which is the longest river of America?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Missourl&lt;br /&gt;
&lt;br /&gt;
b) Mississippi&lt;br /&gt;
&lt;br /&gt;
c) Red&lt;br /&gt;
&lt;br /&gt;
d) Colorado&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
3) Don is river of ?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Turkey&lt;br /&gt;
&lt;br /&gt;
b) Russia&lt;br /&gt;
&lt;br /&gt;
c) UK&lt;br /&gt;
&lt;br /&gt;
d) USA&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
4) What is the length of khyber pass?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 52 km&lt;br /&gt;
&lt;br /&gt;
b) 54 km&lt;br /&gt;
&lt;br /&gt;
c) 56 km&lt;br /&gt;
&lt;br /&gt;
d) 58 km&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
5) Longest glacier of the world is Lambert situated in Antarctica, what is it's length?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 320 Miles&lt;br /&gt;
&lt;br /&gt;
b) 310 ===&lt;br /&gt;
&lt;br /&gt;
c) 300 ===&lt;br /&gt;
&lt;br /&gt;
d) 429 ===&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
6) Which of the following lake is most polluted lake in the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Lake mead&lt;br /&gt;
&lt;br /&gt;
b) Lake victoria&lt;br /&gt;
&lt;br /&gt;
c) Huron&lt;br /&gt;
&lt;br /&gt;
d) Lake eire&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
7) Tugela water fall is present in?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Venezuela&lt;br /&gt;
&lt;br /&gt;
b) South Africa&lt;br /&gt;
&lt;br /&gt;
c) Canada&lt;br /&gt;
&lt;br /&gt;
d) USA&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
8) Gota canal is the ship canal situated in ?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Italy&lt;br /&gt;
&lt;br /&gt;
b) France&lt;br /&gt;
&lt;br /&gt;
c) Sweden&lt;br /&gt;
&lt;br /&gt;
d) USA&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
9) Kiel canal of Germany was opened in 1895 what is it's length?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 59.3 Miles&lt;br /&gt;
&lt;br /&gt;
b) 60.3 miles&lt;br /&gt;
&lt;br /&gt;
c) 61.3 miles&lt;br /&gt;
&lt;br /&gt;
d) 65.1 miles&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
10) Erie canal is situated in ?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) France&lt;br /&gt;
&lt;br /&gt;
b) Austrailia&lt;br /&gt;
&lt;br /&gt;
c) USA&lt;br /&gt;
&lt;br /&gt;
d) canada&lt;br /&gt;
&lt;br /&gt;
11) Houston and Delware canals are present in the country? &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Austrailia&lt;br /&gt;
&lt;br /&gt;
b) France &lt;br /&gt;
&lt;br /&gt;
c) Italy&lt;br /&gt;
&lt;br /&gt;
d) USA&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
12) Grand canal is oldest man made canal for shiping purpose situated in?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Iraq&lt;br /&gt;
&lt;br /&gt;
b) China&lt;br /&gt;
&lt;br /&gt;
c) France&lt;br /&gt;
&lt;br /&gt;
d) India&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
13) Persian Gulf is located in?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Indian ocean&lt;br /&gt;
&lt;br /&gt;
b) Arabian ocean&lt;br /&gt;
&lt;br /&gt;
c) Red sea&lt;br /&gt;
&lt;br /&gt;
d) None of these&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
14) Sutherland waterfall is present in?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) New-Zealand&lt;br /&gt;
&lt;br /&gt;
b) Canada&lt;br /&gt;
&lt;br /&gt;
c) USA&lt;br /&gt;
&lt;br /&gt;
d) Austrailia&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
15) Hudson Bay is situated in?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Northern China&lt;br /&gt;
&lt;br /&gt;
b) Northern USA&lt;br /&gt;
&lt;br /&gt;
c) Northern Canada&lt;br /&gt;
&lt;br /&gt;
d) None of these&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
16) Which is the largest gulf of the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Gulf of Mexico&lt;br /&gt;
&lt;br /&gt;
b) Gulf of Aden&lt;br /&gt;
&lt;br /&gt;
c) Gulf of Riga&lt;br /&gt;
&lt;br /&gt;
d) Gulf sian&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
17) Which is the largest bay of the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Hudson bay&lt;br /&gt;
&lt;br /&gt;
b) Baffin bay&lt;br /&gt;
&lt;br /&gt;
c) Bay of Bicay&lt;br /&gt;
&lt;br /&gt;
d) None of these&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
18) Yosemite is a famous waterfall of ?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) USA&lt;br /&gt;
&lt;br /&gt;
b) Canada&lt;br /&gt;
&lt;br /&gt;
c) Kenya&lt;br /&gt;
&lt;br /&gt;
d) France&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
19) Strait of Bosporous connects?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Black sea and red sea&lt;br /&gt;
&lt;br /&gt;
b) Black sea and baltic sea&lt;br /&gt;
&lt;br /&gt;
c) Black sea and sea of marmara&lt;br /&gt;
&lt;br /&gt;
d) None of these&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
20) It separates Italy from Sicily?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Palk strait&lt;br /&gt;
&lt;br /&gt;
b) Sunda strait&lt;br /&gt;
&lt;br /&gt;
c) Messina&lt;br /&gt;
&lt;br /&gt;
d) Megellan&lt;br /&gt;
&lt;br /&gt;
21) Strait of malacca separates? &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Malaysia and chia&lt;br /&gt;
&lt;br /&gt;
b) Malaysia and indonesia&lt;br /&gt;
&lt;br /&gt;
c) Malaysia and Sri Lanka&lt;br /&gt;
&lt;br /&gt;
d) None of these&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
22) Which of the following straits separate india From Sri Lanka?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Davis&lt;br /&gt;
&lt;br /&gt;
b) Palk&lt;br /&gt;
&lt;br /&gt;
c) Sunda&lt;br /&gt;
&lt;br /&gt;
d) Johor&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
23) Which of the following straits separate Malaysia from Singapore?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Dover&lt;br /&gt;
&lt;br /&gt;
b) Johor&lt;br /&gt;
&lt;br /&gt;
c) Sunda&lt;br /&gt;
&lt;br /&gt;
d) Palk&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
24) Budapest is the capital of Hungary situated on the bank of?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) River spree&lt;br /&gt;
&lt;br /&gt;
b) River volga&lt;br /&gt;
&lt;br /&gt;
c) River Danube&lt;br /&gt;
&lt;br /&gt;
d) River ob&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
25) Sea of Marmara and Aegean sea are connected by the strait?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Davis&lt;br /&gt;
&lt;br /&gt;
b) Mozambique&lt;br /&gt;
&lt;br /&gt;
c) Dardanelles&lt;br /&gt;
&lt;br /&gt;
d) Malacca&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
26) Cook strait separates south New-Zealand from?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) North Austrailia&lt;br /&gt;
&lt;br /&gt;
b) North New-Zealand&lt;br /&gt;
&lt;br /&gt;
c) Papua&lt;br /&gt;
&lt;br /&gt;
d) None&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
27) Paris is the capital of France situated on the bank of?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Seine&lt;br /&gt;
&lt;br /&gt;
b) po&lt;br /&gt;
&lt;br /&gt;
c) Thane&lt;br /&gt;
&lt;br /&gt;
d) Spree&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
28) English channel separates England from?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Italy&lt;br /&gt;
&lt;br /&gt;
b) France&lt;br /&gt;
&lt;br /&gt;
c) Germany&lt;br /&gt;
&lt;br /&gt;
d) Sicily&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
29) Agra is very famous city of India due to Taj Mahal, it is situated on the bank of river?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Brabmputra&lt;br /&gt;
&lt;br /&gt;
b) Ganges&lt;br /&gt;
&lt;br /&gt;
c) Jumna&lt;br /&gt;
&lt;br /&gt;
d) None&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
30) Great victoria desert is present in ?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) New-Zealand&lt;br /&gt;
&lt;br /&gt;
b) England&lt;br /&gt;
&lt;br /&gt;
c) Australia&lt;br /&gt;
&lt;br /&gt;
d) South Africa &lt;br /&gt;
&amp;nbsp; &lt;br /&gt;
31) Gulf of sidra is present in? &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Libya&lt;br /&gt;
&lt;br /&gt;
b) Liberia&lt;br /&gt;
&lt;br /&gt;
c) Macedonia&lt;br /&gt;
&lt;br /&gt;
d) None&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
32) Simpson desert is present in?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) USA&lt;br /&gt;
&lt;br /&gt;
b) UK&lt;br /&gt;
&lt;br /&gt;
c) Morocco&lt;br /&gt;
&lt;br /&gt;
d) Australia&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
33) The river volga pours it's water into the?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Black sea&lt;br /&gt;
&lt;br /&gt;
b) Caspian sea&lt;br /&gt;
&lt;br /&gt;
c) Baltic sea&lt;br /&gt;
&lt;br /&gt;
d) Arabian sea&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
34) Which is the largest sea in the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) South china sea&lt;br /&gt;
&lt;br /&gt;
b) Mediterranean sea&lt;br /&gt;
&lt;br /&gt;
c) Black sea&lt;br /&gt;
&lt;br /&gt;
d) Red sea&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
35) One of the country throughwhich equator passes is?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Malaysia &lt;br /&gt;
&lt;br /&gt;
b) China&lt;br /&gt;
&lt;br /&gt;
c) Malta&lt;br /&gt;
&lt;br /&gt;
d) Pakistan&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
36) The deepest point in the ocean is?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Mariana trench&lt;br /&gt;
&lt;br /&gt;
b) Galathea deep&lt;br /&gt;
&lt;br /&gt;
c) Bartholomew deep&lt;br /&gt;
&lt;br /&gt;
d) Mindanao deep&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
37) Which is the longest mountain range in the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Himalayas&lt;br /&gt;
&lt;br /&gt;
b) Andes&lt;br /&gt;
&lt;br /&gt;
c) Rockies&lt;br /&gt;
&lt;br /&gt;
d) Alps&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
38) The origin of earth dates back to approximately?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 3.6 billion years&lt;br /&gt;
&lt;br /&gt;
b) 4.6 ========&lt;br /&gt;
&lt;br /&gt;
c) 5.6 ========&lt;br /&gt;
&lt;br /&gt;
d) 6.6 ========&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
39) The second largest continent is?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Asia&lt;br /&gt;
&lt;br /&gt;
b) South America&lt;br /&gt;
&lt;br /&gt;
c) North America&lt;br /&gt;
&lt;br /&gt;
d) Africa&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
40) South pole was discovered by?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Cabot&lt;br /&gt;
&lt;br /&gt;
b) Robert peary&lt;br /&gt;
&lt;br /&gt;
c) Amundsen&lt;br /&gt;
&lt;br /&gt;
d) none&lt;br /&gt;
&lt;br /&gt;
41) The dates on which day and night is equal ar? &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 21st march and 24th december&lt;br /&gt;
&lt;br /&gt;
b) 14th January and 23rd september&lt;br /&gt;
&lt;br /&gt;
c) 21st march and 23rd september&lt;br /&gt;
&lt;br /&gt;
d) 14th January and 22nd june&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
42) Which is the deepest ocean in the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Arctic&lt;br /&gt;
&lt;br /&gt;
b) Atlantic&lt;br /&gt;
&lt;br /&gt;
c) Pacific&lt;br /&gt;
&lt;br /&gt;
d) Indian&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
43) The important country close to international date line is?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Malaysia&lt;br /&gt;
&lt;br /&gt;
b) Mauritius&lt;br /&gt;
&lt;br /&gt;
c) New zealand&lt;br /&gt;
&lt;br /&gt;
d) Surinam&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
44) Which of the following towns is situated at the highest altitude?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Lhasa&lt;br /&gt;
&lt;br /&gt;
b) Kathmandu&lt;br /&gt;
&lt;br /&gt;
c) Gartole&lt;br /&gt;
&lt;br /&gt;
d) Thimpu&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
45) Which is the longest day in the Northern Hemisphere?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 20th june&lt;br /&gt;
&lt;br /&gt;
b) 21st june&lt;br /&gt;
&lt;br /&gt;
c) 22nd december&lt;br /&gt;
&lt;br /&gt;
d) 23rd december&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
46) What are the two seas linked bysuez canal?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) The mediterranean and red sea&lt;br /&gt;
&lt;br /&gt;
b) The red sea and the caspian&lt;br /&gt;
&lt;br /&gt;
c) The Red sea and the black sea&lt;br /&gt;
&lt;br /&gt;
d) The indian ocean and the Arabian sea&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
47) Where is the coldest place situated in the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) England&lt;br /&gt;
&lt;br /&gt;
b) Greenland&lt;br /&gt;
&lt;br /&gt;
c) Russia&lt;br /&gt;
&lt;br /&gt;
d) Antarctica&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
48) Which place in the world has the least rainfall?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Africa&lt;br /&gt;
&lt;br /&gt;
b) Thar&lt;br /&gt;
&lt;br /&gt;
c) Mt. Everest&lt;br /&gt;
&lt;br /&gt;
d) Pamir&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
49) Which is the biggest fresh water lake in the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Chilka lake&lt;br /&gt;
&lt;br /&gt;
b) Caspian lake&lt;br /&gt;
&lt;br /&gt;
c) Dal lake&lt;br /&gt;
&lt;br /&gt;
d) Lake superior&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
50) South pole is located in the continent of ?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Africa&lt;br /&gt;
&lt;br /&gt;
b) Australia&lt;br /&gt;
&lt;br /&gt;
c) Greenland&lt;br /&gt;
&lt;br /&gt;
d) Antarctica&lt;br /&gt;
&lt;br /&gt;
51) Which is the longest river in the world? &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Nile&lt;br /&gt;
&lt;br /&gt;
b) Amazon&lt;br /&gt;
&lt;br /&gt;
c) volga&lt;br /&gt;
&lt;br /&gt;
d) mississippi&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
52) Which is the deepest lake in the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Titicaca&lt;br /&gt;
&lt;br /&gt;
b) Victoria&lt;br /&gt;
&lt;br /&gt;
c) Baikal&lt;br /&gt;
&lt;br /&gt;
d) Superior&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
53) Which is the largest lake in Africa?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
A) Chad&lt;br /&gt;
&lt;br /&gt;
b) Nyasa&lt;br /&gt;
&lt;br /&gt;
c) Victoria&lt;br /&gt;
&lt;br /&gt;
d) Tanganyika&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
54) Which is the largest desert in the world present in north Africa?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Atacama&lt;br /&gt;
&lt;br /&gt;
b) Sahara&lt;br /&gt;
&lt;br /&gt;
c) Gobi&lt;br /&gt;
&lt;br /&gt;
d) Thar&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
55) On the banks of which river is the city of London located?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Severn&lt;br /&gt;
&lt;br /&gt;
b) Thames&lt;br /&gt;
&lt;br /&gt;
c) Avon&lt;br /&gt;
&lt;br /&gt;
d) Humber&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
56) The rivers Jhelum, Chenab, Ravi, Bea and sutlej are tributaries of which river?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Ganga&lt;br /&gt;
&lt;br /&gt;
b) Indus&lt;br /&gt;
&lt;br /&gt;
c) Yamuna&lt;br /&gt;
&lt;br /&gt;
d) Brahmputra&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
57) Which among the following trees is considered the tallest in the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Cedar&lt;br /&gt;
&lt;br /&gt;
b) Redwood&lt;br /&gt;
&lt;br /&gt;
c) Eucalyptus&lt;br /&gt;
&lt;br /&gt;
d) Date palm&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
58) Which of the following is a Kharif Crop?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Wheat&lt;br /&gt;
&lt;br /&gt;
b) Rice&lt;br /&gt;
&lt;br /&gt;
c) Gram&lt;br /&gt;
&lt;br /&gt;
d) Mustard&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
59) Humidity in the river is maximum in ?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Winter&lt;br /&gt;
&lt;br /&gt;
b) Summer&lt;br /&gt;
&lt;br /&gt;
c) Monsoon&lt;br /&gt;
&lt;br /&gt;
d) Autumn&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
60) World's largest river is?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Nile&lt;br /&gt;
&lt;br /&gt;
b) Mississipi&lt;br /&gt;
&lt;br /&gt;
c) Amazon&lt;br /&gt;
&lt;br /&gt;
d) Tiber&lt;br /&gt;
&lt;br /&gt;
61) The firs successful expendition to the Mount Everest was made in ?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 1962&lt;br /&gt;
&lt;br /&gt;
b) 1965&lt;br /&gt;
&lt;br /&gt;
c) 1968&lt;br /&gt;
&lt;br /&gt;
d) 1953&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
62) Which one of the following is an ore of iron?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Bauxite&lt;br /&gt;
&lt;br /&gt;
b) Haematite&lt;br /&gt;
&lt;br /&gt;
c) LLmenitie&lt;br /&gt;
&lt;br /&gt;
d) Gypsum&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
63) The shortest day is?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 25 december&lt;br /&gt;
&lt;br /&gt;
b) 22 December&lt;br /&gt;
&lt;br /&gt;
c) 15 June&lt;br /&gt;
&lt;br /&gt;
d) 22 June&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
64) What is the duration of a day at the poles?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 3 months&lt;br /&gt;
&lt;br /&gt;
b) 6 months&lt;br /&gt;
&lt;br /&gt;
c) 9 months&lt;br /&gt;
&lt;br /&gt;
d) 12 months&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
65) Which is the largest country in the Arabian penunsula?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Oman&lt;br /&gt;
&lt;br /&gt;
b) Yemen&lt;br /&gt;
&lt;br /&gt;
c) Saudi Arabia&lt;br /&gt;
&lt;br /&gt;
d) Kuwait&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
66) Earth completes one rotation on its axis in?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) 23 hours and 30 minutes&lt;br /&gt;
&lt;br /&gt;
b) 23 hours 56 mints and 4.9 sec&lt;br /&gt;
&lt;br /&gt;
c) 24 hours&lt;br /&gt;
&lt;br /&gt;
d) 24 hours 1 mint and 10 sec&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
67) The "Roof of the world" is?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) The alps&lt;br /&gt;
&lt;br /&gt;
b) Andes&lt;br /&gt;
&lt;br /&gt;
c) The Apinnes&lt;br /&gt;
&lt;br /&gt;
d) The pamir plateau ( Tibet)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
68) Which is the least populated country in the world?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) antarctica&lt;br /&gt;
&lt;br /&gt;
b) Australia&lt;br /&gt;
&lt;br /&gt;
c) North America&lt;br /&gt;
&lt;br /&gt;
d) none &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
69) Which of the following countries leads the world in the export of oil?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Iran&lt;br /&gt;
&lt;br /&gt;
b) Iraq&lt;br /&gt;
&lt;br /&gt;
c) Saudi Arabia&lt;br /&gt;
&lt;br /&gt;
d) Venezuela&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
70) The Kalahari Desert, which stretches over 1,40,000 miles is in?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Australia&lt;br /&gt;
&lt;br /&gt;
b) South Africa&lt;br /&gt;
&lt;br /&gt;
c) East Africa&lt;br /&gt;
&lt;br /&gt;
d) Saudi Arabia&lt;br /&gt;
&lt;br /&gt;
71) The panama canal links?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Canada with greenland&lt;br /&gt;
&lt;br /&gt;
b) North America with south America&lt;br /&gt;
&lt;br /&gt;
c) Siberia with Greenland&lt;br /&gt;
&lt;br /&gt;
d) None&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
72) Which, amongst the following countries, has the highest density of population per Sq km?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Bangladesh&lt;br /&gt;
&lt;br /&gt;
b) Burma&lt;br /&gt;
&lt;br /&gt;
c) Pakistan&lt;br /&gt;
&lt;br /&gt;
d) Sri Lanka&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
73) Which of the following countries is in the continent of europe?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Albania&lt;br /&gt;
&lt;br /&gt;
b) Algeria&lt;br /&gt;
&lt;br /&gt;
c) Libya&lt;br /&gt;
&lt;br /&gt;
d) Venezuela&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
74) Which is the smallest continent of the world area-wise?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Antarctica&lt;br /&gt;
&lt;br /&gt;
b) Asia&lt;br /&gt;
&lt;br /&gt;
c) Australia&lt;br /&gt;
&lt;br /&gt;
d) Europe&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
75) Himaliya range is based in?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Europe&lt;br /&gt;
&lt;br /&gt;
b) Asia&lt;br /&gt;
&lt;br /&gt;
c) Africa&lt;br /&gt;
&lt;br /&gt;
d) Australia&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
76) The word "Tsunami" belongs to which of the following languages?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) English&lt;br /&gt;
&lt;br /&gt;
b) Latin&lt;br /&gt;
&lt;br /&gt;
c) Chinese&lt;br /&gt;
&lt;br /&gt;
d) Japanese&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
77) Where is the largest coral reef located?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Germany&lt;br /&gt;
&lt;br /&gt;
b) Australia&lt;br /&gt;
&lt;br /&gt;
c) U.K&lt;br /&gt;
&lt;br /&gt;
d) Canada&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
78) Which island was epicenter of Tsunami of 26, december 2004?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Jawa&lt;br /&gt;
&lt;br /&gt;
b) Smatra&lt;br /&gt;
&lt;br /&gt;
c) Bali&lt;br /&gt;
&lt;br /&gt;
d) None&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
79) Which continent is without glaciers?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Asia&lt;br /&gt;
&lt;br /&gt;
b) Europe&lt;br /&gt;
&lt;br /&gt;
c) Africa&lt;br /&gt;
&lt;br /&gt;
d) Australia&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
80) Which of the following gases is most predominant in the sun?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
a) Helium&lt;br /&gt;
&lt;br /&gt;
b) Hydrogen&lt;br /&gt;
&lt;br /&gt;
c) Nitrogen&lt;br /&gt;
&lt;br /&gt;
d) Ozone&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
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&lt;strong&gt;&lt;span style="color: red;"&gt;22)b&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;strong&gt;&lt;span style="color: red;"&gt;23)b&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;strong&gt;&lt;span style="color: red;"&gt;24)c&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;strong&gt;&lt;span style="color: red;"&gt;25)c&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
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&lt;strong&gt;&lt;span style="color: red;"&gt;32)d&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;strong&gt;&lt;span style="color: red;"&gt;33)b&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;strong&gt;&lt;span style="color: red;"&gt;34)a&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
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&lt;strong&gt;&lt;span style="color: red;"&gt;80)b&lt;/span&gt;&lt;/strong&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-6944600146444655809?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;a href="http://feedads.g.doubleclick.net/~a/4UKB6I55ln6qvaSbA_S17qk_-gU/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/4UKB6I55ln6qvaSbA_S17qk_-gU/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/EntertainmentKiDuniya/~4/lARAEDWEoeI" height="1" width="1"/&gt;</content><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/6944600146444655809?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/6944600146444655809?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/EntertainmentKiDuniya/~3/lARAEDWEoeI/iq-test-quaestions-answers.html" title="IQ Test (Quaestions &amp; Answers)" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email><gd:extendedProperty name="OpenSocialUserId" value="17477032422373105585" /></author><feedburner:origLink>http://whitemafiya.blogspot.com/2010/03/iq-test-quaestions-answers.html</feedburner:origLink></entry><entry gd:etag="W/&quot;AkIHQ3czcSp7ImA9WxBUFk4.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-5376751131248131125</id><published>2010-03-03T22:48:00.000+05:00</published><updated>2010-03-03T22:48:52.989+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-03T22:48:52.989+05:00</app:edited><title>STORIES BEHIND FAMOUS NAME</title><content type="html">&lt;a name='more'&gt;&lt;/a&gt;1- YAHOO &lt;br /&gt;
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The word was invented by Jonathan Swift and used in his book Gulliver's Travels. It represents a person who is repulsive in appearance and action and is barely human. Yahoo! founders Jerry Yang and David Filo selected the name because they considered themselves yahoos.&lt;br /&gt;
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2- XEROX&lt;br /&gt;
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The Greek root "xer" means dry. The inventor, Chestor Carlson, named his product Xerox as it was dry copying, markedly different from the then prevailing wet copying.&lt;br /&gt;
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3- SUN&lt;br /&gt;
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Founded by four Stanford University buddies, Sun is the acronym for Stanford University Network.&lt;br /&gt;
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4- SONY&lt;br /&gt;
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From the Latin word 'sonus' meaning sound, and 'sonny' a slang used by Americans to refer to a bright youngster &lt;br /&gt;
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5- RED HAT&lt;br /&gt;
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Company founder Marc Ewing was given the Cornell lacrosse team cap (with red and white stripes) while at college by his grandfather. He lost it and had to search for it desperately. The manual of the beta version of Red Hat Linux had an appeal to readers to return his Red Hat if found by anyone!&lt;br /&gt;
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6- ORACLE&lt;br /&gt;
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Larry Ellison and Bob Oats were working on a consulting project for the Central Intelligence Agency (CIA). The code name for the project was called Oracle (the CIA saw this as the system to give answers to all questions or something such)&lt;br /&gt;
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7- MOTOROLA&lt;br /&gt;
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Founder Paul Galvin came up with this name when his company started manufacturing radios for cars. The popular radio company at the time was called Victrola. &lt;br /&gt;
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8- MICROSOFT&lt;br /&gt;
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It was coined by Bill Gates to represent the company that was devoted to MICRO computer SOFT ware. Originally christened Micro-Soft, the '-was removed later on&lt;br /&gt;
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9- LOTUS&lt;br /&gt;
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Mitch Kapor got the name for his company from the lotus position or 'padmasana.' Kapor used to be a teacher of Transcendental Meditation of Maharishi Mahesh Yogi.&lt;br /&gt;
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10- INTEL&lt;br /&gt;
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Bob Noyce and Gordon Moore wanted to name their new company 'Moore Noyce' but that was already trademarked by a hotel chain, so they had to settle for an acronym of INTegrated ELectronics&lt;br /&gt;
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11- HEWLETT PACKARD (HP)&lt;br /&gt;
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Bill Hewlett and Dave Packard tossed a coin to decide whether the company they founded would be called Hewlett-Packard or Packard-Hewlett&lt;br /&gt;
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12- HOTMAIL&lt;br /&gt;
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Founder Jack Smith got the idea of accessing email via the web from a computer anywhere in the world. When Sabeer Bhatia came up with the business plan for the mail service, he tried all kinds of names ending in 'mail' and finally settled for Hotmail as it included the letters "html" - the programming language used to write web pages. It was initially referred to as HoTMaiL with selective upper casings&lt;br /&gt;
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13- GOOGLE&lt;br /&gt;
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The name started as a jockey boast about the amount of information the search-engine would be able to search. It was originally named 'Googol', a word for the number represented by 1 followed by 100 zeros. After founders - Stanford graduate students Sergey Brin and Larry Page presented their project to an angel investor, they received a Cheque made out to 'Google&lt;br /&gt;
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14- CISCO SYSTEMS&lt;br /&gt;
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The name is not an acronym but an abbreviation of San Francisco. The company's logo reflects its San Francisco name heritage. It represents a stylized Golden Gate Bridge&lt;br /&gt;
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15- APPLE&lt;br /&gt;
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Favorite fruit of founder Steve Jobs. He was three months late in filing a name for the business, and he threatened to call his company Apple Computers if the other colleagues didn't suggest a better name by 5 o'clock &lt;br /&gt;
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__________________ &lt;br /&gt;
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The difference between a successful person and others is not a lack of strength,not lack of knowledge, but rather in a lack of will.&lt;br /&gt;
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"Imagination is more important than knowledge. For knowledge is limited to all we now know and understand, while imagination embraces the entire world, and all there ever will be to know and understand."&lt;br /&gt;
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Albert Einstein&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-5376751131248131125?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;a href="http://feedads.g.doubleclick.net/~a/eUPU4iGcq0AftzG7KYXbi8kQ994/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/eUPU4iGcq0AftzG7KYXbi8kQ994/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/EntertainmentKiDuniya/~4/mFgqJPb8mmE" height="1" width="1"/&gt;</content><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/5377119901881388042?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/5377119901881388042?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/EntertainmentKiDuniya/~3/mFgqJPb8mmE/link-exchange.html" title="Link Partner" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email><gd:extendedProperty name="OpenSocialUserId" value="17477032422373105585" /></author><feedburner:origLink>http://whitemafiya.blogspot.com/2010/03/link-exchange.html</feedburner:origLink></entry><entry gd:etag="W/&quot;AkIDRX47eCp7ImA9WxBUFk8.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-4105571978187723970</id><published>2010-03-03T20:02:00.002+05:00</published><updated>2010-03-03T20:02:54.000+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-03T20:02:54.000+05:00</app:edited><title>7 Common Mistakes In A CV</title><content type="html">&lt;a name='more'&gt;&lt;/a&gt;&lt;span style="color: blue;"&gt;&lt;strong&gt;7 Common Mistakes In A CV&lt;/strong&gt;&lt;/span&gt; &lt;br /&gt;
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Your CV is one of the most important documents you would write in your career. Mistakes in your CV could therefore cost you dearly. Here are some common errors to be avoided while writing your CV:&lt;br /&gt;
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• Typo errors: Spelling mistakes can leave a poor impression. So have your CV proof read by someone to remove such errors. &lt;br /&gt;
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• Factual mistakes: Incorrect tenure in an organization, faulty name, chronology of experience, can all lead to misunderstandings. &lt;br /&gt;
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• Long flowing sentences: This distracts the scanning eyes of a recruiter due to the limited time they allot to reading CVs. &lt;br /&gt;
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• Formatting: The size &amp;amp; type of font chosen can have an impact on the readability. &lt;br /&gt;
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• Incorrect contact information: This being the second most critical data after your experience &amp;amp; skills must be correctly presented. Mention both present &amp;amp; permanent addresses with direct contact numbers. &lt;br /&gt;
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• Lack of objective/focus: Unclear objectives can leave a recruiter guessing which field or type of job you are interested in. A great objective statement clearly defines your career goal aligned with the job you are targeting for. &lt;br /&gt;
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• Length: The CV should be descriptive enough to explain what your key skills are, yet short enough to retain interest of the recruiter.&lt;br /&gt;
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Keep these tips in mind to develop a CV that gives you interview calls&lt;br /&gt;
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To add this, you should also know that a Cover Letter adds a few stars to a great CV. It highlights your interest and summarizes your objective for applying for a particular profile. This can greatly increase your chance of getting an interview call. So, once you have worked on your CV, get working on your Cover Letter.&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-4105571978187723970?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;a href="http://feedads.g.doubleclick.net/~a/rGW37r92AKRkVJlAYF6eRAv_I7U/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/rGW37r92AKRkVJlAYF6eRAv_I7U/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/EntertainmentKiDuniya/~4/Bm0tqdEfxAg" height="1" width="1"/&gt;</content><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/4105571978187723970?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/4105571978187723970?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/EntertainmentKiDuniya/~3/Bm0tqdEfxAg/7-common-mistakes-in-cv.html" title="7 Common Mistakes In A CV" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email><gd:extendedProperty name="OpenSocialUserId" value="17477032422373105585" /></author><feedburner:origLink>http://whitemafiya.blogspot.com/2010/03/7-common-mistakes-in-cv.html</feedburner:origLink></entry><entry gd:etag="W/&quot;AkUEQXgycCp7ImA9WxBUFk8.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-7499101219681805881</id><published>2010-03-03T19:56:00.000+05:00</published><updated>2010-03-03T19:56:40.698+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-03T19:56:40.698+05:00</app:edited><title>10 Unsolved Mysteries of the world</title><content type="html">&lt;a name='more'&gt;&lt;/a&gt;&lt;strong&gt;&lt;span style="color: blue;"&gt;10 Unsolved Mysteries of the world&lt;/span&gt;&lt;/strong&gt; &lt;br /&gt;
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Placebo Effect&lt;br /&gt;
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The placebo effect is when a person takes something they believe is medicine for an ailment they are suffering (which is not really a medicine), and they get better. A placebo is an inert substance, and when taken (with the advice from others that it will cure them) the person get better, simply because they were expecting or believed that it would work. Something similar, called the nocebo effect, is when a person takes fake drugs and thinks they are experiencing problems that would have been caused by the real drugs. They have been known to reduce pain as well.. Why they occur is mysterious and they are only one of the many complicated things related to the body-brain connection. In fact, our own bodies hold many unsolved mysteries.&lt;br /&gt;
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Panspermia&lt;br /&gt;
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How did life on earth appear? Science suggests that life when the planet was favourable for habitation. Yet did microscopic organisms just pop out of nowhere? One hypothesis is panspermia, which suggests that ‘seeds of life’ exist everywhere around the universe, and that life on earth started when these ‘seeds’ came here, probably by a meteor. It also suggests that these seeds are taken to other habitable places in the universe. Something similar to this is exo-genesis. It suggests that life was brought to earth those billions of years ago, however it does not say that life is also taken to other habitable places. Some people believe aliens brought life to our planet, as suggested by the theories of Erich Von Daniken. Although some are sceptical as to how life could exist in space and get carried to other planets, there is substantial evidence that certain life forms, like spores and certain types of bacteria can actually exist in space, perhaps in a dormant state.&lt;br /&gt;
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Mass extinctions&lt;br /&gt;
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From the death of the dinosaurs, to the disappearance of the creatures in the Permian Era, mass extinctions are occurring even now. Sometimes, the cause is clear. We are destroying the biosphere and the atmosphere, and scientists predict that in the next 100 years, 50% of all species will become extinct. But sometimes, the real reason is unclear. It may have been due to competition from other species, dramatic climate changes, or the impacts from an asteroid/meteor (the last one being quite a popular one). Yet some questions remain unanswered. Why was it that some species died out, and others survived, some to this day (famous example: the coelacanth).&lt;br /&gt;
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During the extinction of the dinosaurs, crocodiles and turtles were around, but they survived, even to this day, while the dinosaurs, the pterosaurs, the marine reptiles and others died out. While some people believe that those species were unable to cope with the (possibly) new surroundings, others are not convinced. To this day, they are a mystery, and without a machine, we may never know. Other popular theories include:- flood basalt events, smaller asteroid showers, global warming/cooling, sea level drops.&lt;br /&gt;
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Zombies in Haiti&lt;br /&gt;
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Haitan vodoo, part of their religious practices, has long been considered to be evil. And the base of this suspicion is that the vodoo is used to create zombies. Not zombies as in Hollywood zombies. Not animated brain ****ing zombies. Zombies like, sub-conscious humans who do everything they are told. Wade Davis, a Canadian ethno-biologist, uncovered a lot of info on this. Apparently, it originated in Africa, and two drugs (or poisons) are inserted into the victim’s bloodstream. One a deathlike trance, and one makes the victim seem like they have no brain of their own, thus rendering them able to do whatever they are told. 3 important facts Davis found was:- zombification is not random, it is not common, and it is used as a kind of severe punishment, most likely to those that have broken the sacred vodoo laws.&lt;br /&gt;
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Intuition&lt;br /&gt;
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Ever learned something without really understanding how you know it? That’s intuition. Sometimes called a sixth sense or gut feelings, intuition is the ability to acquire knowledge without a clear source or without reasoning it. Some people claim that they get a feeling that someone is watching them, and they look around and find that somebody is, or was, watching them. Or a police officer may look at some suspects for a crime and somehow know which one is guilty, and later discover they were right.&lt;br /&gt;
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Though some people say that these things are all coincidences, others believe that the human brain has a special ability to get knowledge around them without conscious realization. It is another mystery of the human mind.&lt;br /&gt;
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2012&lt;br /&gt;
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What makes this so special? The fact that the Olympics are taking place in London? No. The ancient Maya civilization, from Central America, had a special calendar that was mind-blowingly accurate. And it predicted that the end of the human life cycle was on December 21st, 2012, the winter solstice. The Mayans were also good at math and astrology(they accurately predicted an eclipse that occurred hundred of years later). So people are guessing that they were right about the end of the world thing, too. Something else that has gotten scientists curious is that there are some major astronomical things happening in 2012. Apart from the occasional eclipse and comet, the entire solar system is supposed to pass through the center of our galaxy, something that happens only once every 26,000 years. And, there’s a risk of our planet’s poles switching. Sounds crazy, but scientists say this has already happened. Also, the Indian calendar, the Kali Yuga, ends at about the same time.&lt;br /&gt;
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Coincidence? I think not.&lt;br /&gt;
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Life on exoplanets&lt;br /&gt;
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Exoplanets, short for extra-solar planets, are planets beyond the solar system. There are 277 recorded exoplanets to date. However, there is no confirmation that there is life on any of them, or in the universe, for that matter. However, it is still a mystery.&lt;br /&gt;
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This is different from UFOs as UFO are unidentified flying objects, meaning something unidentified that has been seen on earth. Some likely candidates for supporting life are Gliese 581 d and HD 189733 b, the latter supposedly containing water vapour and organic matter. There are also questions as to whether there are moons orbiting these planets. Some people believe that there may even be life in our solar system that we don’t know of. Some moons, like Neptune’s Triton or Saturn’s Europa, may possible have, or had, life, and there is substantial evidence that water once flowed through Mars. Still, no one knows.&lt;br /&gt;
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Nazca Lines&lt;br /&gt;
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Etched into the earth on the Nazca Plains in Peru are giant symbols drawn perfectly straight. Some are hundreds of metres long. They look as if they were drawn by some giant hand two thousand years ago. And the strange thing is, they can only be seen from the air. So how did the ancient Nazcans draw them? Researchers say they could have created hot air balloon or kites to fly and view their work. Indeed, an experiment was carried out and it proved that the Nazcans could have made a working balloon. The symbols themselves are of animals and plants. Yet some are long strips of land without any direct meaning.. A writer named Erich Von Daniken believed that these were landing strips for alien spacecraft, and that aliens could have drawn them. They may also be for contacting these aliens. Maria Reiche, an astronomer, says that these lines may be used as a calendar, or to keep track of the stars and planets. There is a monkey drawing that has a coiled tail that looks similar to the orbital lines of our solar system. There are even more obscure theories that suggest that there were giant people 2,000 years ago. Yet, they are still a mystery.&lt;br /&gt;
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Megalithic Structures&lt;br /&gt;
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A megalithic structure is some thing big made of rock. It could be a statue, or just some rocks strewn around in a pattern. The truly mysterious thing about the ancients is, how were they able to create such enormous things? They did not have the technology needed to efficiently make them. Stonehenge is a good example.. A bigger one is the Great Pyramid in Giza, or the pyramids themselves. Sometimes, even their purpose is unclear (Stonehenge) , while other times, the structures in question are mysterious and seemingly supernatural (the pyramids). A megalith (I know, sounds like something from Di-Gata Defenders), a giant rock, is used most of the time, especially in the case of Stonehenge and the Carnac stones. Still, there are a few megalithic structures that are not mysterious (like Great Zimbabwe), but mostly it seems impossible that the ancients made these things themselves. Now, many would like to think aliens helped them. Yet even scientists say queerer things. They suggest that there may have been a lost ancient civilization that was extremely advanced, and they may have given later civilizations the knowledge to build such things. Yet there is no substantial evidence of either.. Other examples: Easter Island Heads, Pyramid of the Sun (in Mesoamerica) , other pyramids in central and south America, Colossus of Rhodes.&lt;br /&gt;
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Creation of the Universe&lt;br /&gt;
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The universe is vast and unknown. It holds many mysteries. And possibly the biggest mystery is how the universe was created. Scientists have suggested that there was a massive explosion billions of years ago called The Big Bang. That theory is now generally accepted, and scientists are looking for trails of energy left behind from the colossal explosion that created a trillion stars. Yet there is no absolute proof. But the creation of the universe is something too big to happen so simply. Religious folks will say God/Allah/Vishnu created the universe. But scientists will say that there was a Big Bang, and that there is energy from the bang moving through the universe, and they are trying to locate the epicentre. So, the debate continues. Religion vs. Science is probably the biggest conflict in the world. But what is religion? There are so many different types. And the difference between the Christian religion and Greek mythology? No one believes in Greek mythology anymore. But what is science?&lt;br /&gt;
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And math? Things created by man. So before saying that man created God and science proves it, people should realize man created science as well. And maybe, the universe is just something made up in our minds.&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-7499101219681805881?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;a href="http://feedads.g.doubleclick.net/~a/Y9x3B47OAPssfx4ThlzIgZ4dhhU/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/Y9x3B47OAPssfx4ThlzIgZ4dhhU/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/EntertainmentKiDuniya/~4/Ol6GeOqDKq8" height="1" width="1"/&gt;</content><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/7499101219681805881?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/7499101219681805881?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/EntertainmentKiDuniya/~3/Ol6GeOqDKq8/10-unsolved-mysteries-of-world.html" title="10 Unsolved Mysteries of the world" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email><gd:extendedProperty name="OpenSocialUserId" value="17477032422373105585" /></author><feedburner:origLink>http://whitemafiya.blogspot.com/2010/03/10-unsolved-mysteries-of-world.html</feedburner:origLink></entry><entry gd:etag="W/&quot;DUAMRXgzeyp7ImA9WxBUFk8.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-5094417416479233626</id><published>2010-03-03T19:49:00.000+05:00</published><updated>2010-03-03T19:49:44.683+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-03T19:49:44.683+05:00</app:edited><title>77 Ways to Learn Faster, Deeper, and Better</title><content type="html">&lt;a name='more'&gt;&lt;/a&gt;&lt;strong&gt;&lt;span style="color: blue;"&gt;77 Ways to Learn Faster, Deeper, and Better&lt;/span&gt;&lt;/strong&gt; &lt;br /&gt;
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Health&lt;br /&gt;
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1. Shake a leg. Lack of blood flow is a common reason for lack of concentration. If you've been sitting in one place for awhile, bounce one of your legs for a minute or two. It gets your blood flowing and sharpens both concentration and recall.&lt;br /&gt;
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2. Food for thought: Eat breakfast. A lot of people skip breakfast, but creativity is often optimal in the early morning and it helps to have some protein in you to feed your brain. A lack of protein can actually cause headaches.&lt;br /&gt;
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3. Food for thought, part 2: Eat a light lunch. Heavy lunches have a tendency to make people drowsy. While you could turn this to your advantage by taking a "thinking nap" (see #23), most people haven't learned how.&lt;br /&gt;
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4. Cognitive enhancers: Ginkgo biloba. Ginkgo biloba is a natural supplement that has been used in China and other countries for centuries and has been reputed to reverse memory loss in rats. It's also suggested by some health practitioners as a nootrope and thus a memory enhancer.&lt;br /&gt;
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5. Reduce stress + depresssion. Stress and depression may reduce the ability to recall information and thus inhibit learning. Sometimes, all you need to reduce depression is more white light and fewer refined foods. &lt;br /&gt;
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Balance&lt;br /&gt;
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6. Sleep on it. Dr. Maxwell Maltz wrote about in his book Psycho-Cybernetics about a man who was was paid good money to come up with ideas. He would lock his office door, close the blinds, turn off the lights. He'd focus on the problem at hand, then take a short nap on a couch. When he awoke, he usually had the problem solved.&lt;br /&gt;
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7. Take a break. Change phyical or mental perspective to lighten the invisible stress that can sometimes occur when you sit in one place too long, focused on learning. Taking a 5-15 minute break every hour during study sessions is more beneficial than non-stop study. It gives your mind time to relax and absorb information. If you want to get really serious with breaks, try a 20 minute ultradian break as part of every 90 minute cycle. This includes a nap break, which is for a different purpose than #23.&lt;br /&gt;
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8. Take a hike. Changing your perspective often relieves tension, thus freeing your creative mind. Taking a short walk around the neighborhood may help.&lt;br /&gt;
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9. Change your focus. Sometimes there simply isn't enough time to take a long break. If so, change subject focus. Alternate between technical and non-technical subjects.&lt;br /&gt;
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Perspective and Focus&lt;br /&gt;
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10. Change your focus, part 2. There are three primary ways to learn: visual, kinesthetic, and auditory. If one isn't working for you, try another.&lt;br /&gt;
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11. Do walking meditation. If you're taking a hike (#25), go one step further and learn walking meditation as a way to tap into your inner resources and your strengthen your ability to focus. Just make sure you're not walking inadvertently into traffic.&lt;br /&gt;
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12. Focus and immerse yourself. Focus on whatever you're studying. Don't try to watch TV at the same time or worry yourself about other things. Anxiety does not make for absorption of information and ideas.&lt;br /&gt;
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13. Turn out the lights. This is a way to focus, if you are not into meditating. Sit in the dark, block out extraneous influences. This is ideal for learning kinesthetically, such as guitar chord changes.&lt;br /&gt;
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14. Take a bath or shower. Both activities loosen you up, making your mind more receptive to recognizing brilliant ideas. &lt;br /&gt;
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Recall Techniques&lt;br /&gt;
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15. Listen to music. Researchers have long shown that certain types of music are a great "key" for recalling memories. Information learned while listening to a particular song or collection can often be recalled simply by "playing" the songs mentally.&lt;br /&gt;
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16. Speedread. Some people believe that speedreading causes you to miss vital information. The fact remains that efficient speedreading results in filtering out irrelevant information. If necessary, you can always read and re-read at slower speeds. Slow reading actually hinders the ability to absorb general ideas. (Although technical subjects often requirer slower reading.) If you're reading online, you can try the free Spreeder Web-based application.&lt;br /&gt;
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17. Use acronyms and other mnemonic devices. Mnemonics are essentially tricks for remembering information. Some tricks are so effective that proper application will let you recall loads of mundane information years later. &lt;br /&gt;
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Visual Aids&lt;br /&gt;
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18. Every picture tells a story. Draw or sketch whatever it is you are trying to achieve. Having a concrete goal in mind helps you progress towards that goal.&lt;br /&gt;
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19. Brainmap it. Need to plan something? Brain maps, or mind maps, offer a compact way to get both an overview of a project as well as easily add details. With mind maps, you can see the relationships between disparate ideas and they can also act as a receptacle for a brainstorming session.&lt;br /&gt;
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20. Learn symbolism and semiotics. Semiotics is the study of signs and symbols. Having an understanding of the symbols of a particular discipline aids in learning, and also allows you to record information more efficiently.&lt;br /&gt;
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21. Use information design. When you record information that has an inherent structure, applying information design helps convey that information more clearly. A great resource is Information Aesthetics, which gives examples of information design and links to their sources.&lt;br /&gt;
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22. Use visual learning techniques. Try gliffy for structured diagrams. Also see Inspiration.com for an explanation of webs, idea maps, concept maps, and plots.&lt;br /&gt;
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23. Map your task flow. Learning often requires gaining knowledge in a specific sequence. Organizing your thoughts on what needs to be done is a powerful way to prepare yourself to complete tasks or learn new topics.&lt;br /&gt;
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Verbal and Auditory Techniques&lt;br /&gt;
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24. Stimulate ideas. Play rhyming games, utter nonsense words. These loosen you up, making you more receptive to learning.&lt;br /&gt;
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25. Brainstorm. This is a time-honored technique that combines verbal activity, writing, and collaboration. (One person can brainstorm, but it's more effective in a group.) It's fruitful if you remember some simple rules: Firstly, don't shut anyone's idea out. Secondly, don't "edit" in progress; just record all ideas first, then dissect them later. Participating in brainstorming helps assess what you already know about something, and what you didn't know.&lt;br /&gt;
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26. Learn by osmosis. Got an iPod? Record a few of your own podcasts, upload them to your iPod and sleep on it. Literally. Put it under your pillow and playback language lessons or whatever.&lt;br /&gt;
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27. Cognitive enhancers: binaural beats. Binaural beats involve playing two close frequencies simultaneously to produce alpha, beta, delta, and theta waves, all of which produce either sleeping, restfulness, relaxation, meditativeness, alertness, or concentration. Binaural beats are used in conjunction with other excercises for a type of super-learning.&lt;br /&gt;
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28. Laugh. Laughing relaxes the body. A relaxed body is more receptive to new ideas. &lt;br /&gt;
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Kinesthetic Techniques&lt;br /&gt;
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29. Write, don't type. While typing your notes into the computer is great for posterity, writing by hand stimulates ideas. The simple act of holding and using a pen or pencil massages acupuncture points in the hand, which in turn stimulates ideas.&lt;br /&gt;
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30. Carry a quality notebook at all times. Samuel Taylor Coleridge dreamed the words of the poem "In Xanadu (did Kubla Khan)...". Upon awakening, he wrote down what he could recall, but was distracted by a visitor and promptly forgot the rest of the poem. Forever. If you've been doing "walking meditation" or any kind of meditation or productive napping, ideas may suddenly come to you. Record them immediately.&lt;br /&gt;
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31. Keep a journal. This isn't exactly the same as a notebook. Journaling has to do with tracking experiences over time. If you add in visual details, charts, brainmaps, etc., you have a much more creative way to keep tabs on what you are learning.&lt;br /&gt;
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32. Organize. Use sticky colored tabs to divide up a notebook or journal. They are a great way to partition ideas for easy referral.&lt;br /&gt;
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33. Use post-it notes. Post-it notes provide a helpful way to record your thoughts about passages in books without defacing them with ink or pencil marks. &lt;br /&gt;
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Self-Motivation Techniques &lt;br /&gt;
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34. Give yourself credit. Ideas are actually a dime a dozen. If you learn to focus your mind on what results you want to achieve, you'll recognize the good ideas. Your mind will become a filter for them, which will motivate you to learn more.&lt;br /&gt;
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35. Motivate yourself. Why do you want to learn something? What do want to achieve through learning? If you don't know why you want to learn, then distractions will be far more enticing.&lt;br /&gt;
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36. Set a goal. W. Clement Stone once said "Whatever the mind of man can conceive, it can achieve." It's an amazing phenomenon in goal achievement. Prepare yourself by whatever means necessary, and hurdles will seem surmountable. Anyone who has experienced this phenomenon understands its validity.&lt;br /&gt;
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37. Think positive. There's no point in setting learning goals for yourself if you don't have any faith in your ability to learn.&lt;br /&gt;
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38. Organize, part 2. Learning is only one facet of the average adult's daily life. You need to organize your time and tasks else you might find it difficult to fit time in for learning. Try Neptune for a browser-based application for "getting things done."&lt;br /&gt;
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39. Every skill is learned. With the exception of bodily functions, every skill in life is learned. Generally speaking, if one person can learn something, so can you. It may take you more effort, but if you've set a believable goal, it's likely an achievable goal.&lt;br /&gt;
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40. Prepare yourself for learning. Thinking positive isn't sufficient for successfully achieving goals. This is especially important if you are an adult, as you'll probably have many distractions surrounding your daily life. Implement ways to reduce distractions, at least for a few hours at a time, else learning will become a frustrating experience.&lt;br /&gt;
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41. Prepare yourself, part 2. Human nature is such that not everyone in your life will be a well-wisher in your self-improvement and learning plans. They may intentionally or subconsciously distract you from your goal. If you have classes to attend after work, make sure that work colleagues know this, that you are unable to work late. Diplomacy works best if you think your boss is intentionally giving you work on the days he/she knows you have to leave. Reschedule lectures to a later time slot if possible/ necessary.&lt;br /&gt;
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42. Constrain yourself. Most people need structure in their lives. Freedom is sometimes a scary thing. It's like chaos. But even chaos has order within. By constraining yourself — say giving yourself deadlines, limiting your time on an idea in some manner, or limiting the tools you are working with — you can often accomplish more in less time. &lt;br /&gt;
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Supplemental Techniques&lt;br /&gt;
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43. Read as much as you can. How much more obvious can it get? Use Spreeder (#33) if you have to. Get a breadth of topics as well as depth.&lt;br /&gt;
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44. Cross-pollinate your interests. Neurons that connect to existing neurons give you new perspectives and abilities to use additional knowledge in new ways.&lt;br /&gt;
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45. Learn another language. New perspectives give you the ability to cross-pollinate cultural concepts and come up with new ideas. As well, sometimes reading a book in its original language will provide you with insights lost in translation.&lt;br /&gt;
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46. Learn how to learn. Management Help has a resource page, as does SIAST (Virtual Campus), which links to articles about learning methods. They are geared towards online learning, but no doubt you gain something from them for any type of learning. If you are serious about optimum learning, read Headrush's Crash course in learning theory.&lt;br /&gt;
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47. Learn what you know and what you don't. Many people might say, "I'm dumb," or "I don't know anything about that." The fact is, many people are wholly unaware of what they already know about a topic. If you want to learn about a topic, you need to determine what you already know, figure out what you don't know, and then learn the latter.&lt;br /&gt;
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48. Multi-task through background processes. Effective multi-tasking allows you to bootstrap limited time to accomplish several tasks. Learning can be bootstrapped through multi-tasking, too. By effective multitasking, I don't mean doing two or more things at exactly the same time. It's not possible. However, you can achieve the semblance of effective multitasking with the right approach, and by prepping your mind for it. For example, a successful freelance writer learns to manage several articles at the same time. Research the first essay, and then let the background processes of your mind takeover. Move on consciously to the second essay. While researching the second essay, the first one will often "write itself." Be prepared to record it when it "appears" to you.&lt;br /&gt;
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49. Think holistically. Holistic thinking might be the single most "advanced" learning technique that would help students. But it's a mindset rather than a single technique.&lt;br /&gt;
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50. Use the right type of repetition. Complex concepts often require revisting in order to be fully absorbed. Sometimes, for some people, it may actually take months or years. Repetition of concepts and theory with various concrete examples improves absorption and speeds up learning.&lt;br /&gt;
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51. Apply the Quantum Learning (QL) model. The Quantum Learning model is being applied in some US schools and goes beyond typical education methods to engage students.&lt;br /&gt;
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52. Get necessary tools. There are obviously all kinds of tools for learning. If you are learning online like a growing number of people these days, then consider your online tools. One of the best tools for online research is the Firefox web browser, which has loads of extensions (add-ons) with all manner of useful features. One is Googlepedia, which simultaneously displays Google search engine listings, when you search for a term, with related entries from Wikipedia.&lt;br /&gt;
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53. Get necessary tools, part 2. This is a very niche tip, but if you want to learn fast-track methods for building software, read Getting Real from 37 Signals. The Web page version is free. The techniques in the book have been used to create Basecamp, Campfire, and Backpack web applications in a short time frame. Each of these applications support collaboration and organization.&lt;br /&gt;
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54. Learn critical thinking. As Keegan-Michael Key's character on MadTV might say, critical thinking takes analysis to "a whole notha level". Read Wikipedia's discourse on critical thinking as a starting point. It involves good analytical skills to aid the ability to learn selectively.&lt;br /&gt;
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55. Learn complex problem solving. For most people, life is a series of problems to be solved. Learning is part of the process. If you have a complex problem, you need to learn the art of complex problem solving. [The latter page has some incredible visual information.]&lt;br /&gt;
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For Teachers, Tutors, and Parents&lt;br /&gt;
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56. Be engaging. Lectures are one-sided and often counter-productive. Information merely heard or witnessed (from a chalkboard for instance) is often forgotten. Teaching is not simply talking. Talking isn't enough. Ask students questions, present scenarios, engage them.&lt;br /&gt;
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57. Use information pyramids. Learning happens in layers. Build base knowledge upon which you can add advanced concepts.&lt;br /&gt;
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58. Use video games. Video games get a bad rap because of certain violent games. But video games in general can often be an effective aid to learning.&lt;br /&gt;
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59. Role play. Younger people often learn better by being part of a learning experience. For example, history is easier to absorb through reenactments.&lt;br /&gt;
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60. Apply the 80/20 rule. This rule is often interpreted in dfferent ways. In this case, the 80/20 rule means that some concepts, say about 20% of a curriculum, require more effort and time, say about 80%, than others. So be prepared to expand on complex topics.&lt;br /&gt;
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61. Tell stories. Venus Flytrap, a character from the sitcom WKRP in Cincinnati, once taught a student gang member about atoms, electrons, and protons by saying that an atom was one big neighborhood, and the protons and neutrons had their own smaller neighborhoods and never mixed. Just like rival gangs. The story worked, and understanding sparked in the students eyes.&lt;br /&gt;
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62. Go beyond the public school curriculum. The public school system is woefully lacking in teaching advanced learning and brainstorming methods. It's not that the methods cannot be taught; they just aren't. To learn more, you have to pay a premium in additional time and effort, and sometimes money for commercially available learning tools. There's nothing wrong with that in itself, but what is taught in schools needs to be expanded. This article's author has proven that a nine-year old can learn (some) university level math, if the learning is approached correctly.&lt;br /&gt;
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63. Use applied learning. If a high school student were having trouble in math, say with fractions, one example of applied learning might be photography, lenses, f-stops, etc. Another example is cooking and measurement of ingredients. Tailor the applied learning to the interest of the student. &lt;br /&gt;
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For Students and Self-Studiers&lt;br /&gt;
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64. Be engaged. Surprise. Sometimes students are bored because they know more than is being taught, maybe even more than a teacher. (Hopefully teachers will assess what each student already knows.) Students should discuss with a teacher if they feel that the material being covered is not challenging. Also consider asking for additional materials.&lt;br /&gt;
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65. Teach yourself. Teachers cannot always change their curricula. If you're not being challenged, challenge yourself. Some countries still apply country-wide exams for all students. If your lecturer didn't cover a topic, you should learn it on your own. Don't wait for someone to teach you. Lectures are most effective when you've pre-introduced yourself to concepts.&lt;br /&gt;
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66. Collaborate. If studying by yourself isn't working, maybe a study group will help.&lt;br /&gt;
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67. Do unto others: teach something. The best way to learn something better is to teach it to someone else. It forces you to learn, if you are motivated enough to share your knowledge.&lt;br /&gt;
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68. Write about it. An effective way to "teach" something is to create an FAQ or a wiki containing everything you know about a topic. Or blog about the topic. Doing so helps you to realize what you know and more importantly what you don't. You don't even have to spend money if you grab a freebie account with Typepad, Wordpress, or Blogger.&lt;br /&gt;
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69. Learn by experience. Pretty obvious, right? It means put in the necessary time. An expert is often defined as someone who has put in 10,000 hours into some experience or endeavor. That's approximately 5 years of 40 hours per week, every week. Are you an expert without realizing it? If you're not, do you have the dedication to be an expert?&lt;br /&gt;
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70. Quiz yourself. Testing what you've learned will reinforce the information. Flash cards are one of the best ways, and are not just for kids.&lt;br /&gt;
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71. Learn the right things first. Learn the basics. Case in point: a frustrating way to learn a new language is to learn grammar and spelling and sentence constructs first. This is not the way a baby learns a language, and there's no reason why an adult or young adult has to start differently, despite "expert" opinion. Try for yourself and see the difference.&lt;br /&gt;
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72. Plan your learning. If you have a long-term plan to learn something, then to quote Led Zeppelin, "There are two paths you can go by." You can take a haphazard approach to learning, or you can put in a bit of planning and find an optimum path. Plan your time and balance your learning and living. &lt;br /&gt;
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Parting Advice&lt;br /&gt;
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73. Persist. Don't give up learning in the face of intimdating tasks. Anything one human being can learn, most others can as well. Wasn't it Einstein that said, "Genius is 1% inspiration and 99% perspiration"? Thomas Edison said it, too.&lt;br /&gt;
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74. Defy the experts. Dyslexia, in a nutshell, is the affliction of mentally jumbling letters and digits, causing difficulties in reading, writing and thus learning. Sometimes spoken words or numbers get mixed up as well. In the past, "experts" declared dyslexic children stupid. Later, they said they were incapable of learning. This author has interacted with and taught dyslexic teens. It's possible. Helen Keller had no experience of sight, sound, or speech, and yet she learned. Conclusion: There is more than one way to learn; never believe you cannot.&lt;br /&gt;
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75. Challenge yourself. People are often more intelligent than they realize. In a world that compartmentalizes and categorizes everything, not everyone is sure where they fit in. And genius can be found in many walks of life. If you honestly suspect that there's more to you than has been "allowed" to be let out, try an IQ test such as the one offered by MENSA. It's unlike the standardized IQ tests given in many schools. You know the kind — the ones which traumatize many young students into thinking they are stupid, simply because the tests don't really assess all student's knowledge and learning ability. And the ability to learn is far, far more important than what you already know.&lt;br /&gt;
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76. Party before an exam. Well, don't go that far. The key is to relax. The worse thing to do is cram the night before an exam. If you don't already know a subject by then, cramming isn't going to help. If you have studied, simply review the topic, then go do something pleasant (no more studying). Doing so tells your brain that you are prepared and that you will be able to recall anything that you have already learned. On the other hand, if you didn't spend the semester learning the ideas you need, you might as well go party anyways because cramming at the last minute isn't going to help much at that point.&lt;br /&gt;
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77. Don't worry; learn happy. Have a real passion for learning and want to share that? Join a group such as the Joyful Jubilant Learning community [via LifeHack].&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-5094417416479233626?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
&lt;p&gt;&lt;a href="http://feedads.g.doubleclick.net/~a/tOhGXpAIuLsqiXvCsDW6oE3hxlo/0/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/tOhGXpAIuLsqiXvCsDW6oE3hxlo/0/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href="http://feedads.g.doubleclick.net/~a/tOhGXpAIuLsqiXvCsDW6oE3hxlo/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/tOhGXpAIuLsqiXvCsDW6oE3hxlo/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/EntertainmentKiDuniya/~4/ic4yDMkMC0A" height="1" width="1"/&gt;</content><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/5094417416479233626?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/5094417416479233626?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/EntertainmentKiDuniya/~3/ic4yDMkMC0A/77-ways-to-learn-faster-deeper-and.html" title="77 Ways to Learn Faster, Deeper, and Better" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email><gd:extendedProperty name="OpenSocialUserId" value="17477032422373105585" /></author><feedburner:origLink>http://whitemafiya.blogspot.com/2010/03/77-ways-to-learn-faster-deeper-and.html</feedburner:origLink></entry><entry gd:etag="W/&quot;DEAASHg4fyp7ImA9WxBUFk8.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-2707314272267649</id><published>2010-03-03T19:32:00.000+05:00</published><updated>2010-03-03T19:32:29.637+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-03T19:32:29.637+05:00</app:edited><title>World War</title><content type="html">&lt;a name='more'&gt;&lt;/a&gt;1871 - Following the defeat of France in the Franco-Prussian War, Germany is unified as an Imperial federation of states, led by the King of Prussia (Kaiser Wilhelm I). This spurs a new era of population growth and rapid industrialization. The Germans also forcibly annex the provinces of Alsace and Lorraine from France. &lt;br /&gt;
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1882 - Germany, Austria-Hungary (Hapsburg Empire) and Italy form the Triple Alliance.&lt;br /&gt;
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1891 - The Russian Empire and France form their own alliance in reaction to the Triple Alliance.&lt;br /&gt;
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1898 - Germany begins to build up its navy to challenge the British Navy's long-standing global supremacy. &lt;br /&gt;
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January 1902 - Britain and Japan form a naval alliance.&lt;br /&gt;
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April 1904 - The British reach a strategic agreement with France which includes mutual military support in the event of war. &lt;br /&gt;
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January 1905 - Troops of Russian Czar Nicholas II fire upon peaceful demonstrators in St. Petersburg killing hundreds in what comes to be known as Bloody Sunday. &lt;br /&gt;
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May 1905 - Russia suffers a military defeat at sea by newly industrialized Japan, thwarting Russia's territorial ambitions toward Manchuria and Korea. &lt;br /&gt;
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October 1905 - Continuing political unrest in Russia, including a general strike, results in the creation of a national legislative assembly (Duma) by the Czar.&lt;br /&gt;
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February 1906 - H.M.S. Dreadnought is launched by Britain, marking the advent of a new class of big-gun battleships. The Germans follow suit and begin building similar battleships as an all-out arms race ensues between Germany and Britain.&lt;br /&gt;
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August 1907 - The British reach a strategic agreement with Russia.&lt;br /&gt;
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October 1908 - Austria-Hungary, backed by Germany, annexes Bosnia-Herzegovina. Neighboring Serbia, with the backing of Russia, voices its objection in support of the Serbian minority living in Bosnia. &lt;br /&gt;
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March 1909 - Germany forces Russia to endorse the annexation of Bosnia-Herzegovina by Austria-Hungary.&lt;br /&gt;
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1910 - Germany surpasses Britain as the leading manufacturing nation in Europe. The United States remains the world leader, surpassing all of the European manufacturing nations combined.&lt;br /&gt;
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October 1912 - The Balkan War erupts in southern Europe as Serbia leads an attack by members of the Balkan League (Serbia, Bulgaria and Greece) against the Ottoman (Turkish) Empire to drive the Turks out of Europe. &lt;br /&gt;
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May 1913 - The Balkan War ends with the Turks driven out of southern Europe. A peace settlement is then drawn up by the major European powers that divides up the former Turkish areas in southern Europe among the Balkan League nations. However, the peace is short-lived as Bulgaria, desiring a bigger share, attacks neighboring Greece and Serbia. Romania then attacks Bulgaria along with the Turks. This Second Balkan War results in Bulgaria losing territory and the Serbians becoming emboldened, leaving the Balkan region of southern Europe politically unstable.&lt;br /&gt;
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1914&lt;br /&gt;
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June 28, 1914 - Archduke Franz Ferdinand, heir to the Austrian throne, and his wife, visit Sarajevo in Bosnia. A bomb is thrown at their auto but misses. Undaunted, they continue their visit only to be shot and killed a short time later by a lone assassin. Believing the assassin to be a Serbian nationalist, the Austrians target their anger toward Serbia.&lt;br /&gt;
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July 23, 1914 - Austria-Hungary, with the backing of Germany, delivers an ultimatum to Serbia. The Serbs propose arbitration as a way to resolve dispute, but also begin mobilization of their troops.&lt;br /&gt;
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July 25, 1914 - Austria-Hungary severs diplomatic ties with Serbia and begins to mobilize its troops.&lt;br /&gt;
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July 26, 1914 - Britain attempts to organize a political conference among the major European powers to resolve the dispute between Austria-Hungary and Serbia. France and Italy agree to participate. Russia then agrees, but Germany refuses.&lt;br /&gt;
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July 28, 1914 - The Austro-Hungarian Empire declares war on Serbia.&lt;br /&gt;
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July 29, 1914 - Britain calls for international mediation to resolve the worsening crisis. Russia urges German restraint, but the Russians begin partial troop mobilization as a precaution. The Germans then warn Russia on its mobilization and begin to mobilize themselves.&lt;br /&gt;
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July 30, 1914 - Austrian warships bombard Belgrade, capital of Serbia.&lt;br /&gt;
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July 31, 1914 - Reacting to the Austrian attack on Serbia, Russia begins full mobilization of its troops. Germany demands that it stop.&lt;br /&gt;
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August 1, 1914 - Germany declares war on Russia. France and Belgium begin full mobilization.&lt;br /&gt;
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August 3, 1914 - Germany declares war on France, and invades neutral Belgium. Britain then sends an ultimatum, rejected by the Germans, to withdraw from Belgium. &lt;br /&gt;
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August 4, 1914 - Great Britain declares war on Germany. The declaration is binding on all Dominions within the British Empire including Canada, Australia, New Zealand, India and South Africa.&lt;br /&gt;
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August 4, 1914 - The United States declares its neutrality.&lt;br /&gt;
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August 4-16, 1914 - The Siege of Liege occurs as Germans attack the Belgian fortress city but meet resistance from Belgian troops inside the Liege Forts. The twelve forts surrounding the city are then bombarded into submission by German and Austrian howitzers using high explosive shells. Remaining Belgian troops then retreat northward toward Antwerp as the German westward advance continues.&lt;br /&gt;
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August 6, 1914 - The Austro-Hungarian Empire declares war on Russia.&lt;br /&gt;
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August 6, 1914 - French and British troops invade the German colony of Togo in West Africa. Twenty days later, the German governor there surrenders.&lt;br /&gt;
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August 7, 1914 - The first British troops land in France. The 120,000 highly trained members of the regular British Army form the British Expeditionary Force (BEF) commanded by Field Marshal John French.&lt;br /&gt;
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August 7-24, 1914 - The French desire to score a quick victory ignites the first major French-German action of the war. The French Army invades Alsace and Lorraine according to their master strategy known as Plan XVII. However, the French offensive is met by effective German counter-attacks using heavy artillery and machine-guns. The French suffer heavy casualties including 27,000 soldiers killed in a single day, the worst one-day death toll in the history of the French Army. The French then fall back toward Paris amid 300,000 total casualties. &lt;br /&gt;
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August 8, 1914 - Britain enacts the Defense of the Realm Act (DORA) granting unprecedented powers to the government to control the economy and daily life. &lt;br /&gt;
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August 12, 1914 - Great Britain and France declare war on Austria-Hungary. Serbia is invaded by Austria-Hungary.&lt;br /&gt;
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August 17, 1914 - Russia invades Germany, attacking into East Prussia, forcing the outnumbered Germans there to fall back. This marks the advent of the Eastern Front in Europe in which Russia will oppose Germany and Austria-Hungary. &lt;br /&gt;
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August 20, 1914 - German troops occupy undefended Brussels, capital of Belgium. Following this, the main German armies continue westward and invade France according to their master strategy known as the Schlieffen Plan. It calls for a giant counter-clockwise movement of German armies wheeling into France, swallowing up Paris, and then attacking the rear of the French armies concentrated in the Alsace-Lorraine area. Under the overall command of Helmuth von Moltke, Chief of the German General Staff, the Germans seek to achieve victory over France within six weeks and then focus on defeating Russia in the East before Russia's six-million-man army, the world's largest, can fully mobilize.&lt;br /&gt;
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August 23, 1914 - Japan declares war on Germany. The Japanese then prepare to assist the British in expelling the Germans from the Far East. German possessions in the South Pacific include a naval base on the coast of China, part of New Guinea, Samoa, and the Caroline, Marshall and Mariana Islands.&lt;br /&gt;
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August 26, 1914 - On the Eastern Front, German troops in East Prussia under the new command of Paul von Hindenburg and Erich Ludendorff oppose the Russian 2nd Army. Aided by aerial reconnaissance and the interception of uncoded Russian radio messages, the Germans effectively reposition their troops to counter the initial Russian advance. Five days later, after surrounding the Russians, the battle ends with a German victory and the capture of 125,000 Russians. Following this success, the Germans drive the Russians out of East Prussia with heavy casualties. The impressive victory elevates Hindenburg and Ludendorff to the status of heroes in Germany.&lt;br /&gt;
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August 30, 1914 - German possessions in the Far East are attacked as New Zealand troops occupy German Samoa. Three days later, Japanese forces land on the coast of China, preparing to attack the German naval base at Tsingtao (Qingdao). A month later, the Japanese begin their occupation of the Caroline, Marshall and Mariana Islands.&lt;br /&gt;
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Battle of the Marne&lt;br /&gt;
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September 5-12, 1914 - On the Western Front, Paris is saved as French and British troops disrupt the Schlieffen Plan by launching a major counter-offensive against the invading German armies to the east of Paris. Six hundred taxi cabs from the city help to move French troops to the Front. Aided by French aerial reconnaissance which reveals a gap has developed in the center of the whole German advance, the French and British exploit this weakness and press their advantage. The Germans then begin a strategic withdrawal northward as the Allies pursue. Each side repeatedly tries to outmaneuver the other and gain a tactical advantage as they move northward in what becomes known as the Race to the Sea.&lt;br /&gt;
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September 7, 1914 - In the Far East, a German naval squadron, commanded by Graf von Spee severs the British Pacific communications cable. &lt;br /&gt;
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September 8, 1914 - The French government enacts nationwide State of War regulations which include total control over the economy and national security, strict censorship, and suspension of civil liberties. &lt;br /&gt;
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September 17, 1914 - On the Eastern Front, Austrian forces steadily retreat from the advancing Russian 3rd and 8th armies fighting in southern Poland and along the Russian-Austrian border. The Germans then send the newly formed 9th Army to halt the Russians. This marks the beginning of a pattern in which the Germans will aid the weaker Austro-Hungarian Army. &lt;br /&gt;
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September 22, 1914 - The first-ever British air raid against Germany occurs as Zeppelin bases at Cologne and Düsseldorf are bombed. &lt;br /&gt;
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First Battle of Ypres&lt;br /&gt;
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October 19-November 22, 1914&lt;br /&gt;
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October 19, 1914 - Still hoping to score a quick victory in the West, the Germans launch a major attack on Ypres in Belgium. Despite heavy losses, British, French and Belgian troops fend off the attack and the Germans do not break through. During the battle, the Germans send waves of inexperienced 17 to 20-year-old volunteer soldiers, some fresh out of school. They advance shoulder-to-shoulder while singing patriotic songs only to be systematically gunned down in what the Germans themselves later call the "massacre of the innocents." By November, overall casualties will total 250,000 men, including nearly half of the British Regular Army. &lt;br /&gt;
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October 29, 1914 - The Ottoman Empire (Turkey) enters the war on the side of the Germans as three warships shell the Russian port of Odessa. Three days later, Russia declares war on Turkey. Russian and Turkish troops then prepare for battle along the common border of the Russian Caucasus and the Ottoman Empire. &lt;br /&gt;
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October-November, 1914 - Germans and Austrians launch a combined offensive against the Russians on the Eastern Front. The German 9th Army targets Warsaw, Poland, but is opposed by six Russian armies and withdraws. The Austrians attack the Russians in Galicia (a province in northeast Austria) with indecisive results. However, the Russians fail to press their advantage at Warsaw and instead begin a split counter-offensive moving both southward against the Austrians in Galicia and northward toward Germany. The German 9th Army then regroups and cuts off the Russians at Lodz, Poland, halting their advance and forcing an eastward withdrawal by the Russians.&lt;br /&gt;
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November 1, 1914 - Austria invades Serbia. This is the third attempt to conquer the Serbs in retaliation for the assassination of Archduke Franz Ferdinand. This attempt fails like the two before it, at the hands of highly motivated Serbs fighting on their home ground. The Austrians withdraw in mid-December, after suffering over 220,000 casualties from the three failed invasions.&lt;br /&gt;
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November 1, 1914 - The British Navy suffers its worst defeat in centuries during a sea battle in the Pacific. Two British ships, the Monmouth and Good Hope, are sunk with no survivors by a German squadron commanded by Admiral Graf von Spee. &lt;br /&gt;
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November 3, 1914 - Kaiser Wilhelm appoints Erich von Falkenhayn as the new Chief of the German General Staff, replacing Helmuth von Moltke who is sacked due to the failure of the Schlieffen Plan. &lt;br /&gt;
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November 5, 1914 - France and Britain declare war on the Ottoman (Turkish) Empire.&lt;br /&gt;
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November 6, 1914 - In the Persian Gulf, a major British offensive begins as the 6th Indian Division invades Mesopotamia. The objective is to protect the oil pipeline from Persia. Two weeks later they capture the city of Basra.&lt;br /&gt;
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November 7, 1914 - In the Far East, the German naval base at Tsingtao is captured by the Japanese, aided by a British and Indian battalion. &lt;br /&gt;
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Trench Warfare Begins&lt;br /&gt;
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December 1914 - The Western Front in Europe stabilizes in the aftermath of the First Battle of Ypres as the Germans go on the defensive and transfer troops to the East to fight the Russians. The 450-mile-long Western Front stretches from the Channel Coast southward through Belgium and Eastern France into Switzerland. Troops from both sides construct opposing trench fortifications and dugouts protected by barbed wire, machine-gun nests, snipers, and mortars, with an in-between area called No Man's Land. The Eastern Front also sees its share of trenches as troops dig in after the Russians hold off the Germans in Poland and the Austrians hold off the Russians at Limanowa. The 600-mile Eastern Front stretches from the Baltic Sea southward through East Prussia and Austria to the Carpathian Mountains. &lt;br /&gt;
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December 8, 1914 - The Battle of Falkland Islands occurs as British Navy warships destroy the German squadron of Admiral Graf von Spee in the South Atlantic off the coast of Argentina. Von Spee and two sons serving in his squadron are killed.&lt;br /&gt;
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December 10, 1914 - The French begin a series of attacks along the Western Front against the Germans in the Artois region of northern France and Champagne in the south. Hampered by a lack of heavy artillery and muddy winter conditions, the French fail to make any significant gains and both offensives are soon suspended. &lt;br /&gt;
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December 16, 1914 - Britain suffers its first civilian casualties at home in the war as the German Navy bombards the coastal towns of Whitby, Hartlepool and Scarborough, killing 40 persons and wounding hundreds. &lt;br /&gt;
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December 25, 1914 - A Christmas truce occurs between German and British soldiers in the trenches of northern France. All shooting stops as the soldiers exit their trenches, exchange gifts, sing carols and engage in a soccer game. This is the only Christmas truce of the war, as Allied commanders subsequently forbid fraternization with orders to shoot any violators. &lt;br /&gt;
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1915 : A Global Conflict&lt;br /&gt;
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January 17, 1915 - The initial Turkish offensive into Russia is thwarted as the Turkish 3rd Army suffers a defeat by the Russian Army of the Caucasus near Kars. The Russians then begin a multi-pronged invasion of the Ottoman Empire from the Caucasus. &lt;br /&gt;
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January 19, 1915 - Germany begins an aerial bombing campaign against Britain using Zeppelins.&lt;br /&gt;
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January 31, 1915 - Poison gas is used for the first time in the war as Germans on the Eastern Front attack Russian positions west of Warsaw. Although the Germans fire 18,000 gas shells, they have little effect on the Russians as frigid temperatures prevent the gas from vaporizing.&lt;br /&gt;
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February 1915 - The Turks begin forced deportations of Armenians. Over the next two years, an estimated 1.5 million Armenians will either starve to death, die of thirst in the Syrian Desert, or be murdered by Turkish troops and bandits, during the Armenian Genocide.&lt;br /&gt;
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February 3, 1915 - Turkish troops launch an unsuccessful attack against the British-controlled Suez Canal, which is regularly used by the British to ferry Dominion troops from Australia, New Zealand and India to European battle grounds.&lt;br /&gt;
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February 4, 1915 - Germany declares the waters surrounding British Isles to be a war zone in which ships can be sunk without warning. &lt;br /&gt;
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February 7-22, 1915 - On the Eastern Front in Europe, the German 8th and 10th Armies wage a successful offensive against the Russian 10th Army in the Masurian Lakes region of East Prussia, pushing the Russians eastward into the Augustow Forest where they are decimated.&lt;br /&gt;
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February 16, 1915 - On the Western Front, the French launch their second offensive against German defense lines in Champagne. Once again they are hampered by the muddy winter weather and a lack of heavy artillery. After a month of fighting, suffering 240,000 casualties, the exhausted French break off the offensive.&lt;br /&gt;
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U-Boat Warfare Begins&lt;br /&gt;
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February 18, 1915 - The first German U-Boat campaign of the war begins with unrestricted attacks against merchant and passenger ships in the waters around the British Isles. Within six months, Allied shipping losses at sea surpass the number of new ships being built. However, the unrestricted attacks also arouse the anger of the neutral United States as Americans are killed. &lt;br /&gt;
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March 1915 - The British Navy imposes a total sea blockade on Germany, prohibiting all shipping imports including food. &lt;br /&gt;
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March 10, 1915 - British and Indian troops in the Artois region of northern France attack the Germans around the village of Neuve Chapelle. The attack takes the outnumbered Germans by surprise. The British achieve their initial objective but fail to capitalize on the narrow breach they create in the German lines. After three days of fighting, with over 11,000 casualties, the British offensive is suspended. The Germans suffer over 10,000 casualties.&lt;br /&gt;
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March 22, 1915 - The Russians capture 120,000 Austrians at Przemysl in Galicia. This marks the culmination of a series of winter battles between the Austrians and Russians to secure the strategic Carpathian Mountain passes and opens the way for a Russian invasion of Hungary. Realizing this, the Germans and Austrians make plans to combine their troops and launch a major spring offensive.&lt;br /&gt;
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April 11, 1915 - British troops in Mesopotamia fend off a large attack by the Turks against Basra. The British then branch out to protect their position at Basra, and proceed up the Tigris Valley toward Baghdad.&lt;br /&gt;
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Second Battle of Ypres&lt;br /&gt;
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April 22-May 25, 1915&lt;br /&gt;
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April 22, 1915 - Poison gas is used for the first time on the Western Front as the German 4th Army attacks French positions around Ypres in northern Belgium. As they attack, the Germans release chlorine gas from over 5,000 cylinders forming poisonous green clouds that drift toward two French African divisions. Lacking any protection, the French quickly retreat. Although this creates a five-mile-wide gap in the Allied lines, the Germans fail to capitalize due to a lack of reserve troops and cautious frontline troops hesitant to venture too close to the gas clouds. British and Canadians then plug the gap but are unable to regain any ground taken by the Germans. The British then withdraw to a second line of defense, leaving Ypres in Allied hands but virtually surrounded. Casualties in the Second Battle of Ypres total 58,000 Allies and 38,000 Germans. &lt;br /&gt;
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April 25, 1915 - Allied troops land on the Gallipoli Peninsula in an attempt to unblock the Dardanelles Straits near Constantinople (present day Istanbul, Turkey) to reopen access to Russia through the Black Sea. The landing comes after a failed attempt by British and French warships to force their way through the narrow Straits. The 70,000 landing troops include 15,000 Australians and New Zealanders. The peninsula is heavily defended by Turkish troops, supplied and trained by Germans. Within two weeks, a stalemate develops as the Allies fail to gain any of their objectives and the Turks begin a series of costly attacks attempting to drive out the Allies. &lt;br /&gt;
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May 1, 1915 - German U-Boats sink their first American merchant ship, the tanker Gulflight, in the Mediterranean Sea near Sicily.&lt;br /&gt;
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May 2, 1915 - On the Eastern Front, a combined Austro-German offensive begins against the Russian 3rd Army at Tarnow and Gorlice in Galicia. The attack is preceded by a massive artillery bombardment with over 700,000 shells. This breaks down the defenses of the weakened Russians who now suffer from shortages of artillery shells and rifles. Within two days, the Austro-Germans break through the lines and the Russians begin a disorganized retreat.&lt;br /&gt;
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Lusitania Sunk &lt;br /&gt;
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May 7, 1915 - A German U-Boat torpedoes the British passenger liner Lusitania off the Irish coast. It sinks in 18 minutes, drowning 1,201 persons, including 128 Americans. President Woodrow Wilson subsequently sends four diplomatic protests to Germany. &lt;br /&gt;
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May 9, 1915 - Following six days of artillery bombardment by over a thousand French guns, the French 10th Army attacks German defense lines in the Artois, advancing toward Vimy Ridge. The French achieve their initial objective, but fail to capitalize on the narrow breach they create in the German lines. The next day, Germans counter-attack and push back the French.&lt;br /&gt;
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May 9, 1915 - Complementing the French offensive at Vimy, British and Indian troops launch their second attack against the Germans around Neuve Chapelle in the Artois. However, without sufficient artillery support to weaken the German frontline defenses, the advancing soldiers are decimated by German machine-gun fire. The attack is called off the next day with 11,000 casualties.&lt;br /&gt;
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May 15, 1915 - British and Indian troops launch another attack against Germans in the Artois, this time at Festubert, north of Neuve Chapelle. The attack is preceded by a 60-hour artillery bombardment. But the troops advance just 1,000 yards while suffering 16,000 casualties.&lt;br /&gt;
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May 23, 1915 - Italy enters the war on the side of the Allies by declaring war on Austria-Hungary. The Italians then launch offensives along the 400-mile common border between Austria and Italy. The better equipped Austrians take advantage of the mountainous terrain to establish strong defensive positions all along the border. The Italians then focus their attacks on the mountain passes at Trentino and the valley of the Isonzo River. &lt;br /&gt;
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May 31, 1915 - The first aerial bombing of London occurs as German Zeppelins kill 28 persons.&lt;br /&gt;
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June 12, 1915 - After pausing to regroup, Austro-German troops resume their offensive in Galicia on the Eastern Front. Within five days, they break through the Russian lines and push the Russian 3rd and 8th Armies further eastward. Russian casualties soon surpass 400,000.&lt;br /&gt;
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June 16, 1915 - The French 10th Army launches its second attempt to seize Vimy Ridge from the Germans in the Artois. This time the troops encounter an intensive artillery bombardment from the improved defenses of the German 6th Army. The French achieve their initial objective, but then succumb to a German counter-attack, just as they did in the first attempt at Vimy. The French call off the Vimy offensive with 100,000 casualties. The Germans suffer 60,000. &lt;br /&gt;
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June 23, 1915 - The First Battle of Isonzo begins as Italian troops attack Austrian defenses. Initial gains by the Italians are soon repulsed by the Austrians with heavy casualties for both sides. Three additional battles are fought through the end of 1915 with similar results, totaling 230,000 casualties for the Italians and 165,000 for the Austrians. &lt;br /&gt;
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July 1, 1915 - Russia creates a Central War Industries Committee to oversee production and address a severe shortage of artillery shells and rifles on the Front. Russian soldiers in the field without rifles can only get them from fellow soldiers after they are killed or wounded.&lt;br /&gt;
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July 9, 1915 - In Africa, the German Southwest Africa colony (present day Namibia) is taken by the Allies following 11 months of fighting between the Germans and South African and Rhodesian troops loyal to the British. &lt;br /&gt;
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July 13, 1915 - On the Eastern Front, the next phase of the combined Austro-German offensive against the Russians begins in northern Poland, with the Austro-Germans advancing toward Warsaw. The Russian Army now gets weaker by the day due to chronic supply shortages and declining morale. Once again, the Russians retreat, and also order a total civilian evacuation of Poland. This results in great hardship for the people as they leave their homes and head eastward, clogging the roads and hampering the movement of Russian troops. &lt;br /&gt;
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August 1, 1915 - The Fokker Scourge begins over the Western Front as German pilots achieve air supremacy using the highly effective Fokker monoplane featuring a synchronized machine-gun that fires bullets through the spinning propeller. Although the technology was pioneered by French pilot Roland Garros, the Germans copied and improved the synchronized gun idea after capturing his plane. The Fokker Scourge will last nearly a year, until Allied aerial technology catches up.&lt;br /&gt;
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August 5, 1915 - Warsaw is taken by Austro-Germans troops. This ends a century of Russian control of the city. After taking Warsaw, the Austro-Germans move on to capture Ivangorod, Kovno, Brest-Litovsk, Bialystok, Grodno, and Vilna. By the end of September, Russian troops are driven out of Poland and Galicia, back to the original lines from which they had begun the war in 1914. For the time being, the battered Russian Army has effectively been eliminated as an offensive threat on the Eastern Front, freeing the Germans to focus more effort on the Western Front.&lt;br /&gt;
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August 6, 1915 - Hoping to break the stalemate at Gallipoli, British renew the offensive. An additional 20,000 troops are landed but their attack is hampered by poor communications and logistical problems. The Turks, led by Mustafa Kemal, respond by rushing in two divisions and the British offensive fails.&lt;br /&gt;
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September 5, 1915 - Russian Czar Nicholas II takes personal command of the Russian Army, hoping to rally his faltering troops. Losses to the Czar's army from the Austro-German offensives in Galicia and Poland include over 1,400,000 casualties and 750,000 captured. Russia is also weakened economically by the loss of Poland's industrial and agricultural output. Additionally, the ongoing mass exodus of Russian troops and civilians from Poland, called the Great Retreat, spurs dangerous political and social unrest in Russia, undermining the rule of the Czar and his Imperial government. &lt;br /&gt;
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September 6, 1915 - Bulgaria enters the war on Germany's side with an eye toward invading neighboring Serbia. Thus far in the war, Austria-Hungary has tried, but failed, three times to conquer Serbia in retaliation for the assassination of Archduke Ferdinand. Now, the Austrians, aided by Germany and Bulgaria, plan to try again. With the addition of Bulgaria, Germany now has three allies in the war including Austria-Hungary and Turkey. This alliance is called the Central Powers due to their geographic location, primarily in central Europe.&lt;br /&gt;
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September 18, 1915 - The Germans announce an end to their first U-Boat campaign, begun in February, which had targeted ships around the British Isles. This comes in response to increasing protests from the United States following American civilian deaths at sea. The U-Boats are then sent by the Germans to wreak havoc in the Mediterranean Sea, away from American shipping lanes in the Atlantic.&lt;br /&gt;
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September 25, 1915 - On the Western Front, the British use poison gas for the first time as they launch an attack against the German 6th Army in the Artois. Chlorine gas is released from over 5,000 cylinders, creating a poisonous cloud that drifts toward the Germans, opening a gap in their front line. The British advance and quickly seize their objective, the town of Loos, but then fail to capitalize on the four-mile-wide breach in the German lines. The Germans regroup and when the British resume the attack the next day they are mowed down in the hundreds by well-placed German machine-gunners. In all, the British suffer 50,000 casualties during the Loos offensive. British Army Commander John French is then sacked, replaced by Douglas Haig.&lt;br /&gt;
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September 25, 1915 - The French 2nd Army in Champagne attacks the weakest part of the German lines, creating a six-mile-wide breach that is three miles deep. The German 3rd Army then rushes in reinforcements, regroups its defense lines and plugs the gap. Facing strong resistance, the French break off the attack. &lt;br /&gt;
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September 26, 1915 - The French launch their third attempt to seize Vimy Ridge from the Germans in Artois, and this time they secure the ridge.&lt;br /&gt;
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September 26-28, 1915 - In the Middle East, a British victory occurs at the Battle of Kut al-Amara in Mesopotamia as they defeat the Turks. The resounding victory spurs an ambitious move by the British to venture onward to quickly capture Baghdad. However, that attempt fails and the troops return to Kut-al-Amara and dig in.&lt;br /&gt;
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October 6, 1915 - The invasion of Serbia begins as Austro-German troops attack from the north. Five days later, the Bulgarians attack from the east. The outnumbered Serbs have their poorly supplied troops stretched too thinly to defend both fronts. Belgrade then falls to the Germans and the Bulgarians capture Kumanova, severing the country's north-south rail line. This leaves the overwhelmed Serbian troops no option other than to retreat westward through the mountains into Albania.&lt;br /&gt;
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December 5, 1915 - Hoping to overcome their earlier defeat at Kut al-Amara in Mesopotamia, Turkish troops lay siege to the town, surrounding the British garrison there, cutting them off completely. &lt;br /&gt;
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December 19, 1915 - The Allies begin an orderly evacuation of the Gallipoli Peninsula. This comes after months of stalemate in which Turkish troops contained all breakthrough attempts while inflicting 250,000 casualties. The British Navy successfully evacuates 83,000 survivors by sea as the Turks watch without firing a shot, glad to see them leave. &lt;br /&gt;
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1916 : The Blood Letting&lt;br /&gt;
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January 1916 - President Woodrow Wilson begins an effort to organize a peace conference in Europe. &lt;br /&gt;
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February 18, 1916 - In West Africa, the German colony of Cameroon falls to the French and British following 17 months of fighting. This leaves only one German colony remaining in Africa, known as German East Africa. There, 10,000 troops skillfully commanded by General Paul von Lettow-Vorbeck prove to be an elusive but deadly target, as they are pursued by a British-led force ten times larger. &lt;br /&gt;
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Battle of Verdun&lt;br /&gt;
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February 21-December 18, 1916&lt;br /&gt;
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February 21, 1916 - On the Western Front, the German 5th Army attacks the French 2nd Army north of the historic city of Verdun, following a nine-hour artillery bombardment. The Germans under Chief of the General Staff, Erich Falkenhayn, seek to "bleed" the French Army to death by targeting the cherished city. At first, the Germans make rapid gains along the east bank of the Meuse River, overrunning bombed out French trenches, and capture lightly defended Fort Douaumont four days later without firing a shot. However, the German offensive soon stalls as the French rush in massive reinforcements and strengthen their defenses, under the new command of Henri Petain, who is determined to save Verdun. An early spring thaw also turns the entire battlefield into mud, hampering offensive maneuvers.&lt;br /&gt;
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March 6, 1916 - Germans renew their Verdun offensive, this time attacking along the west bank of the Meuse River, targeting two strategic hills northwest of Verdun that form the main French position. However, by the end of March, the heavily defended hills are only partially in German hands. &lt;br /&gt;
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March 18, 1916 - On the Eastern Front, the Russians oblige a French request to wage an offensive to divert German resources from Verdun. Although the Russians greatly outnumber the Germans in the northern sector of the Eastern Front, their poorly coordinated offensive around Vilna and at Lake Naroch is swiftly defeated by the Germans with 70,000 Russian casualties. &lt;br /&gt;
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April 9, 1916 - The Germans attack again at Verdun, now along a 20-mile-wide front on both the east and west banks of the Meuse River. Once again the attack only yields partial gains in the face of stiff French resistance. &lt;br /&gt;
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April 18, 1916 - President Woodrow Wilson threatens to sever diplomatic ties between the United States and Germany following the sinking of the passenger ferry Sussex by a U-Boat in the English Channel. The attack marked the beginning of a new U-Boat campaign around the British Isles. But in response to Wilson, the Germans call off the U-Boats.&lt;br /&gt;
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April 29, 1916 - In the Middle East, the five-month siege at Kut-al-Amara in Mesopotamia ends as 13,000 British and Indian soldiers, now on the verge of starvation, surrender to the Turks. The largest-ever surrender by the British Army comes after four failed attempts by British relief troops to break through to the surrounded garrison. &lt;br /&gt;
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May 3, 1916 - At Verdun, the Germans begin another attack on the west bank of the Meuse. This time they gain the advantage and within three days capture the two French hills they had been striving for since early March, thus achieving a solid position northwest of Verdun.&lt;br /&gt;
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May 15, 1916 - Austrian troops attack Italian mountain positions in the Trentino. The Italians withdraw southward, forcing the Austrians to stretch their supply lines over the difficult terrain. The arrival of Italian reinforcements and a successful counter-attack then halts the Austrian offensive completely.&lt;br /&gt;
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May 25, 1916 - The era of the all-volunteer British Army ends as universal conscription takes effect requiring all eligible British men between the ages of 19 and 40 to report, excluding men working in agriculture, mining or the railroads.&lt;br /&gt;
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May 31, 1916 - The main German and British naval fleets clash in the Battle of Jutland in the North Sea, as both sides try, but fail, to score a decisive victory. Forward battle cruisers from the British Grand Fleet are initially lured southward toward the German High Seas Fleet, but then turn completely around, luring the entire German fleet northward. As they get near, the British blast away at the German forward ships. The Germans return fire and the two fleets fire furiously at each other. However, the Germans, aware they are outgunned by the larger British fleet, disengage by abruptly turning away. In the dead of the night the Germans withdraw entirely. The British do not risk a pursuit and instead head home. Both sides claim victory. Although the Germans sink 14 of the 151 British ships while losing 11 of 99 ships, the British Navy retains its dominance of the North Sea and the naval blockade of Germany will remain intact for the war's duration. &lt;br /&gt;
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June 1, 1916 - Germans at Verdun try to continue their offensive success along the Meuse River and now attack the French on the east bank, targeting Fort Vaux and the fortification at Thiaumont. Eight days later, both objectives are taken as the French suffer heavy casualties. The Germans now push onward toward a ridge that overlooks Verdun and edge toward the Meuse bridges. The entire nation of France now rallies behind their troops in the defense of Verdun as French generals vow it will not be taken. &lt;br /&gt;
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June 4, 1916 - Four Russian armies on the Eastern Front, under their innovative new commander, General Alexei Brusilov, begin a general offensive in the southwest along a 300-mile front. Brusilov avoids the style of predictable narrow frontline attacks used previously, in favor of a sweeping offensive over hundreds of miles that is harder to pin down. Thinly stretched Austro-Hungarian troops defending this portion of the Front are taken by surprise. Realizing their distress, the Germans pull four divisions from Verdun and send them east. By the end of summer, the Germans will send 20 more divisions and merge the surviving Austro-Hungarian troops into the Germany Army. &lt;br /&gt;
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June 22, 1916 - Germans resume their offensive near Verdun, targeting Fort Souville which overlooks the city and the Meuse bridges. Using poisonous phosgene gas at the start of the attack, they initially take the village of Fleury just two miles north of Verdun, but further advance southward is halted by a strong French counter-attack. Verdun has now become a battle of attrition for both sides with a death toll already approaching 500,000 men. &lt;br /&gt;
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Battle of the Somme&lt;br /&gt;
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July 1-November 18, 1916&lt;br /&gt;
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June 24, 1916 - The Allies begin a week-long artillery bombardment of German defensive positions on the Somme River in northern France, in preparation for a major British-led offensive. Over 1.5 million shells are fired along a 15-mile front to pulverize the intricate German trench system and to blow apart rows of barbed wire protecting the trenches. British Commander Douglas Haig believes this will allow an unhindered infantry advance and a rapid breakthrough of the German Front on the first day of battle. &lt;br /&gt;
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July 1, 1916 - The British Army suffers the worst single-day death toll in its history as 18,800 soldiers are killed on the first day of the Battle of the Somme. The losses come as 13 attacking divisions encounter German defenses that are still intact despite the seven-day bombardment designed to knock them out. The British also attack in broad daylight, advancing in lines shoulder-to-shoulder only to be systematically mowed down by German machine-gunners. The Somme offensive quickly becomes a battle of attrition as British and French troops make marginal gains against the Germans but repeatedly fail to break through the entire Front as planned.&lt;br /&gt;
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July 10, 1916 - The Germans attack again at Verdun, using poison gas, and advance toward Fort Souville. Four days later, the French counter-attack and halt the Germans. &lt;br /&gt;
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July 13, 1916 - The British launch a night attack against German positions along a 3.5-mile portion of the Somme Front. After advancing nearly 1,000 yards, the advance is halted as the Germans regroup their defenses. Two days later, the British once again penetrate the German line and advance to High Wood but are then pushed back.&lt;br /&gt;
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August 27, 1916 - Romania declares war on the Central Powers and begins an invasion of Austria-Hungary through the Carpathian Mountains. The Romanians face little opposition initially and advance 50 miles into Transylvania. &lt;br /&gt;
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August 28, 1916 - Kaiser Wilhelm appoints Field Marshal Paul von Hindenburg as Germany's new Chief of the General Staff, replacing Erich Falkenhayn following the disappointment at Verdun and recent setbacks on the Eastern Front.&lt;br /&gt;
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August 28, 1916 - Italy declares war on Germany, thus expanding the scope of its military activities beyond the Italian-Austrian Front. &lt;br /&gt;
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August 29, 1916 - Germany's entire economy is placed under the Hindenburg Plan allowing the military to exercise dictatorial-style powers to control the labor force, munitions production, food distribution and most aspects of daily life. &lt;br /&gt;
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September 1, 1916 - Romania is invaded by the newly formed Danube Army, consisting of Germans, Turks and Bulgarians under the command of German General August von Mackensen. This marks the start of a multi-pronged invasion of Romania in response to its aggression against Austria-Hungary.&lt;br /&gt;
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September 15, 1916 - The first-ever appearance of tanks on a battlefield occurs as British troops renew the Somme offensive and attack German positions along a five-mile front, advancing 2,000 yards with tank support. The British-developed tanks feature two small side-cannons and four machine-guns, operated by an eight-man crew. As the infantry advances, individual tanks provide support by blasting and rolling over the German barbed wire, piercing the frontline defense, and then roll along the length of the trench, raking the German soldiers with machine-gun fire. &lt;br /&gt;
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September 20, 1916 - On the Eastern Front, the Brusilov Offensive grinds to a halt. Since its launch in early June, four Russian armies under the command of General Alexei Brusilov had swept eastward up to 60 miles deep along a 300-mile front while capturing 350,000 Austro-Hungarian troops. But by the end of summer, the Germans brought in 24 divisions from the Western Front and placed the surviving Austro-Hungarian troops under German command. The Russian attack withered after the loss of nearly a million men amid insufficient reserves. The humiliating withdrawal from the hard-won areas wrecks Russian troop morale, fueling political and social unrest in Russia.&lt;br /&gt;
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September 25, 1916 - British and French troops renew their attacks in the Somme, capturing several villages north of the Somme River, including Thiepval, where the British successfully use tanks again. Following these successes, however, heavy rain turns the entire battlefield to mud, preventing effective maneuvers. &lt;br /&gt;
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October 8, 1916 - The German Air Force (Luftstreikrafte) is founded as various aerial fighting groups are merged. &lt;br /&gt;
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October 10, 1916 - Romanian troops return home after being pushed out of Hungary by two Austro-German armies. The Austro-German 9th Army then invades Romania and heads toward Bucharest.&lt;br /&gt;
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October 24, 1916 - At Verdun, the French under General Robert Nivelle, begin an ambitious offensive designed to end the German threat there by targeting Fort Douaumont and other German-occupied sites on the east bank of the Meuse River. The attack is preceded by the heaviest artillery bombardment to-date by the French. Additionally, French infantry use an effective new tactic in which they slowly advance in stages, step-by-step behind encroaching waves of artillery fire. Using this creeping barrage tactic, they seize Fort Douaumont, then take Fort Vaux further east, nine days later.&lt;br /&gt;
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November 7, 1916 - American voters re-elect President Woodrow Wilson who had campaigned on the slogan, "He kept us out of war."&lt;br /&gt;
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November 13, 1916 - British troops stage a surprise attack and capture the towns of Beaumont Hamel and Beaucourt at the northern end of the Somme Front. &lt;br /&gt;
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November 18, 1916 - The Battle of the Somme ends upon the first snowfall as the British and French decide to cease the offensive. By now, the Germans have been pushed back just a few miles along the entire 15-mile front, but the major breakthrough the Allies had planned never occurred. Both sides each suffered over 600,000 casualties during the five-month battle. Among the injured German soldiers is Corporal Adolf Hitler, wounded by shrapnel.&lt;br /&gt;
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November 20, 1916 - Emperor Franz Joseph of Austria-Hungary dies at age 86. He is succeeded by Archduke Charles who wants to take Austria-Hungary out of the war. &lt;br /&gt;
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December 6, 1916 - Bucharest, capital of Romania, falls to the Austro-Germans. This effectively ends Romanian resistance to the Austro-German invasion and places the country's entire agricultural and industrial resources, including the Ploesti oil fields, in German hands.&lt;br /&gt;
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December 7, 1916 - LLoyd George becomes Britain's new Prime Minister. His new War Cabinet immediately begins to organize the country for "total war."&lt;br /&gt;
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December 12, 1916 - Joseph Joffre resigns under pressure from his position as Commander-in-Chief of the French Army, replaced by General Robert Nivelle. &lt;br /&gt;
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December 15, 1916 - The last offensive in the Battle of Verdun begins as the French push the Germans out of Louvemont and Bezonvaux on the east bank of the Meuse River. Combined with other ground losses, the German withdrawal ends the immediate threat to Verdun and both sides now focus their efforts on battles elsewhere along the Western Front. Overall, the French and Germans suffered nearly a million casualties combined during the ten month battle in which the Germans failed to capture the city of Verdun. &lt;br /&gt;
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December 18, 1916 - President Woodrow Wilson caps off a year-long effort to organize a peace conference in Europe by asking the combatants to outline their peace terms. &lt;br /&gt;
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1917 : The Rage of Men&lt;br /&gt;
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January 19, 1917 - The British intercept a telegram sent by Alfred Zimmermann in the German Foreign Office to the German embassies in Washington, D.C., and Mexico City. Its message outlines plans for an alliance between Germany and Mexico against the United States. According to the scheme, Germany would provide tactical support while Mexico would benefit by expanding into the American Southwest, retrieving territories that had once been part of Mexico. The Zimmermann telegram is passed along by the British to the Americans and is then made public, causing an outcry from interventionists in the U.S., such as former president Teddy Roosevelt, who favor American military involvement in the war.&lt;br /&gt;
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February 1, 1917 - The Germans resume unrestricted submarine warfare around the British Isles with the goal of knocking Britain out of the war by cutting off all imports to starve the British people into submission. &lt;br /&gt;
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February 3, 1917 - The United States severs diplomatic ties with Germany after a U-Boat sinks the American grain ship Housatonic. Seven more American ships are sunk in February and March as the Germans sink 500 ships in just sixty days. &lt;br /&gt;
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February 25, 1917 - In the Middle East, newly reinforced and replenished British troops retake Kut al-Amara in Mesopotamia from outnumbered Turks. The British then continue their advance and capture Baghdad, followed by Ramadi and Tikrit.&lt;br /&gt;
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Russian Revolution&lt;br /&gt;
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March 8, 1917 - A mass protest by Russian civilians in Petrograd (St. Petersburg) erupts into a revolution against Czar Nicholas II and the war. Within days, Russian soldiers mutiny and join the revolution. &lt;br /&gt;
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March 15, 1917 - The 300-year-old Romanov dynasty in Russia ends upon the abdication of Czar Nicholas II. In his place, a new democratically minded Provisional Government is established. Great Britain, France, the United States, and Italy rush to recognize the new government in the hope Russia will stay in the war and maintain its huge presence on the Eastern Front. &lt;br /&gt;
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March 15, 1917 - Germans along the central portion of the Western Front in France begin a strategic withdrawal to the new Siegfried Line (called the Hindenburg Line by the Allies) which shortens the overall Front by 25 miles by eliminating an unneeded bulge. During the three-week long withdrawal, the Germans conduct a scorched earth policy, destroying everything of value. &lt;br /&gt;
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April 1917 - British combat pilots on the Western Front suffer a 50 percent casualty rate during Bloody April as the Germans shoot down 150 fighter planes. The average life expectancy of an Allied fighter pilot is now three weeks, resulting from aerial dogfights and accidents.&lt;br /&gt;
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America Enters&lt;br /&gt;
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April 2, 1917 - President Woodrow Wilson appears before the U.S. Congress and gives a speech saying "the world must be made safe for democracy" then asks the Congress for a declaration of war against Germany. &lt;br /&gt;
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April 6, 1917 - The United States of America declares war on Germany.&lt;br /&gt;
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April 9, 1917 - The British Army has one of its most productive days of the war as 3rd Army, supported by Canadian and Australian troops, makes rapid advances north of the Hindenburg Line at Arras and Vimy on the Western Front. The expansive first-day achievement in snowy weather includes a 3.5 mile territorial gain and the capture of Vimy Ridge by Canadians. However, similar to past offensives, the inability to capitalize on initial successes and maintain momentum gives the Germans an opportunity to regroup and further gains are thwarted. The British suffer 150,000 casualties during the offensive, while the Germans suffer 100,000.&lt;br /&gt;
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Nivelle Offensive&lt;br /&gt;
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April 16, 1917 - The French 5th and 6th Armies attack along a 25-mile front south of the Hindenburg Line. The new offensive comes amid promises of a major breakthrough within 24-hours by the new French Commander-in-Chief, Robert Nivelle, who planned the operation. Nivelle once again utilizes his creeping barrage tactic in which his armies advance in stages closely behind successive waves of artillery fire. However, this time it is poorly coordinated and the troops fall far behind. The Germans also benefit from good intelligence and aerial reconnaissance and are mostly aware of the French plan. Nivelle's offensive collapses within days with over 100,000 casualties. French President Poincaré personally intervenes and Nivelle is relieved of his command. He is replaced as Commander-in-Chief by General Henri Petain, who must deal with a French Army that is now showing signs of mutiny.&lt;br /&gt;
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April 16, 1917 - Political agitator Vladimir Lenin arrives back in Russia, following 12 years of exile in Switzerland. Special train transportation for his return was provided by the Germans in the hope that anti-war Lenin and his radical Bolshevik Party will disrupt Russia's new Provisional Government. Lenin joins other Bolsheviks in Petrograd who have already returned from exile including Joseph Stalin. &lt;br /&gt;
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May 18, 1917 - The Selective Service Act is passed by the U.S. Congress, authorizing a draft. The small U.S. Army, presently consisting of 145,000 men, will be enlarged to 4,000,000 via the draft. &lt;br /&gt;
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May 19, 1917 - The Provisional Government of Russia announces it will stay in the war. A large offensive for the Eastern Front is then planned by Alexander Kerensky, the new Minister of War. However, Russian soldiers and peasants are now flocking to Lenin's Bolshevik Party which opposes the war and the Provisional Government. &lt;br /&gt;
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French Mutiny&lt;br /&gt;
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May 27-June 1, 1917 - The mutinous atmosphere in the French Army erupts into open insubordination as soldiers refuse orders to advance. More than half of the French divisions on the Western Front experience some degree of disruption by disgruntled soldiers, angry over the unending battles of attrition and appalling living conditions in the muddy, rat and lice-infested trenches. The new Commander-in-Chief, Henri Petain, cracks down on the mutiny by ordering mass arrests, followed by several firing squad executions that serve as a warning. Petain then suspends all French offensives and visits the troops to personally promise an improvement of the whole situation. With the French Army in disarray the main burden on the Western Front falls squarely upon the British.&lt;br /&gt;
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June 7, 1917 - A tremendous underground explosion collapses the German-held Messines Ridge south of Ypres in Belgium. Upon detonation, 10,000 Germans stationed on the ridge vanish instantly. The British then storm the ridge forcing the surviving Germans to withdraw to a new defensive position further eastward. The 250-foot-high ridge had given the Germans a commanding defensive position. British, Australian and Canadian tunnelers had worked for a year to dig mines and place 600 tons of explosives. &lt;br /&gt;
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June 13, 1917 - London suffers its highest civilian casualties of the war as German airplanes bomb the city, killing 158 persons and wounding 425. The British react to the new bombing campaign by forming home defense fighter squadrons and later conduct retaliatory bombing raids against Germany by British planes based in France.&lt;br /&gt;
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June 25, 1917 - The first American troops land in France. &lt;br /&gt;
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July 1, 1917 - Russian troops begin the Kerensky Offensive attempting to recapture the city of Lemberg (Lvov) on the Eastern Front. The Germans are lying in wait, fully aware of the battle plans which have been leaked to them. The Russians attack along a 40-mile front but suffer from a jumble of tactical problems including a lack of artillery coordination, poor troop placement, and serious disunity within the ranks reflecting the divisive political situation back home. The whole offensive disintegrates within five days. Sensing they might break the Russian Army, the Germans launch a furious counter-offensive and watch as Russian soldiers run away.&lt;br /&gt;
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July 2, 1917 - Greece declares war on the Central Powers, following the abdication of pro-German King Constantine who is replaced by a pro-Allied administration led by Prime Minister Venizelos. Greek soldiers are now added to the Allied ranks.&lt;br /&gt;
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Third Battle of Ypres&lt;br /&gt;
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July 31-November 6, 1917&lt;br /&gt;
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July 31, 1917 - The British attempt once more to break through the German lines, this time by attacking positions east of Ypres, Belgium. However, by now the Germans have vastly improved their trench defenses including well-positioned artillery. Although the British 5th Army succeeds in securing forward trench positions, further progress is halted by heavy artillery barrages from the German 4th Army and rainy weather. &lt;br /&gt;
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August 10, 1917 - The British resume their attack at Ypres, focusing on German artillery positions around Gheluvelt. The attack produces few gains as the Germans effectively bombard and then counter-attack. Six days later, the British try again, with similar results. The entire Ypres offensive then grinds to a halt as British Army Commander Douglas Haig ponders his strategy. &lt;br /&gt;
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September 1, 1917 - On the Eastern Front, the final Russian battle in the war begins as the Germans attack toward Riga. The German 8th Army utilizes new storm troop tactics devised by General Oskar von Hutier. Bypassing any strong points as they move forward, storm troop battalions armed with light machine-guns, grenades and flame throwers focus on quickly infiltrating the rear areas to disrupt communications and take out artillery. The Russian 12th Army, under General Kornilov, is unable to hold itself together amid the storm troop attacks and abandons Riga, then begins a rapid retreat along the Dvina River, pursued by the Germans. &lt;br /&gt;
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September 20, 1917 - A revised British strategy begins at Ypres designed to wear down the Germans. It features a series of intensive, narrowly focused artillery and troop attacks with limited objectives, to be launched every six days. The first such attack, along the Menin Road toward Gheluvelt, produces a gain of about 1,000 yards with 22,000 British and Australian casualties. Subsequent attacks yield similar results. &lt;br /&gt;
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October 12, 1917 - The Ypres offensive culminates around the village of Passchendaele as Australian and New Zealand troops die by the thousands while attempting to press forward across a battlefield of liquid mud, advancing just 100 yards. Steady October rains create a slippery quagmire in which wounded soldiers routinely drown in mud-filled shell craters. &lt;br /&gt;
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Attack at Caporetto&lt;br /&gt;
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October 24, 1917 - In northern Italy, a rout of the Italian Army begins as 35 German and Austrian divisions cross the Isonzo River into Italy at Caporetto and then rapidly push 41 Italian divisions 60 miles southward. By now, the Italians have been worn down from years of costly but inconclusive battles along the Isonzo and in the Trentino, amid a perceived lack of Allied support. Nearly 300,000 Italians surrender as the Austro-Germans advance, while some 400,000 desert. The Austro-Germans halt at the Piave River north of Venice only due to supply lines which have become stretched to the limit.&lt;br /&gt;
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October 26, 1917 - At Ypres, a second attempt is made but fails to capture the village of Passchendaele, with Canadian troops participating this time. Four days later, the Allies attack again and edge closer as the Germans slowly begin pulling out.&lt;br /&gt;
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October 31, 1917 - In the Middle East, the British led by General Edmund Allenby begin an attack against Turkish defensive lines stretching between Gaza and Beersheba in southern Palestine. The initial attack on Beersheba surprises the Turks and they pull troops away from Gaza which the British attack secondly. The Turks then retreat northward toward Jerusalem with the Allies in pursuit. Aiding the Allies, are a group of Arab fighters led by T. E. Lawrence, an Arab speaking English archeologist, later known as Lawrence of Arabia. He is instrumental in encouraging Arab opposition to the Turks and in disrupting their railroad and communication system. &lt;br /&gt;
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November 6, 1917 - The village of Passchendaele is captured by Canadian troops. The Allied offensive then ceases, bringing the Third Battle of Ypres to an end with no significant gains amid 500,000 casualties experienced by all sides.&lt;br /&gt;
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October Revolution&lt;br /&gt;
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November 6-7, 1917 - In Russia, Bolsheviks led by Vladimir Lenin and Leon Trotsky overthrow the Provisional Government in what comes to be known as the October Revolution (Oct. 24-25 according to the Russian calendar). They establish a non-democratic Soviet Government based on Marxism which prohibits private enterprise and private land ownership. Lenin announces that Soviet Russia will immediately end its involvement in the war and renounces all existing treaties with the Allies.&lt;br /&gt;
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November 11, 1917 - The German High Command, led by Erich Ludendorff, gathers at Mons, Belgium, to map out a strategy for 1918. Ludendorff bluntly states he is willing to accept a million German casualties in a daring plan to achieve victory in early 1918, before the American Army arrives in force. The goal is to drive a wedge between the British and French armies on the Western Front via a series of all-out offensives using Germany's finest divisions and intensive storm troop tactics. Once this succeeds, the plan is to first decimate the British Army to knock Britain out of the war, and then decimate the French Army, and thus secure final victory.&lt;br /&gt;
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November 15, 1917 - Georges Clemenceau becomes France's new Prime Minister at age 76. Nicknamed "The Tiger," when asked about his agenda, he will simply answer, "I wage war."&lt;br /&gt;
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British Tank Attack&lt;br /&gt;
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November 20, 1917 - The first-ever mass attack by tanks occurs as the British 3rd Army rolls 381 tanks accompanied by six infantry divisions in a coordinated tank-infantry-artillery attack of German trenches near Cambrai, France, an important rail center. The attack targets a 6-mile-wide portion of the Front and by the end of the first day appears to be a spectacular success with five miles gained and two Germans divisions wrecked. The news is celebrated by the ringing of church bells in England, for the first time since 1914. However, similar to past offensives, the opportunity to exploit first-day gains is missed, followed by the arrival of heavy German reinforcements and an effective counter-attack in which the Germans take back most of the ground they lost.&lt;br /&gt;
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December, 7, 1917 - Romania concludes an armistice with the Central Powers due to the demise of Imperial Russia, its former military ally. &lt;br /&gt;
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December 9, 1917 - Jerusalem is captured by the British. This ends four centuries of its control by the Ottoman (Turkish) Empire. &lt;br /&gt;
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December 15, 1917 - Soviet Russia signs an armistice with Germany. With Russia's departure from the Eastern Front, forty-four German divisions become available to be redeployed to the Western Front in time for Ludendorff's Spring Offensive. &lt;br /&gt;
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1918 : A Fateful Ending&lt;br /&gt;
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January 1918 - President Woodrow Wilson outlines an elaborate peace plan to the U.S. Congress containing Fourteen Points as the basis of its establishment.&lt;br /&gt;
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March 3, 1918 - At Brest-Litovsk, Soviet Russia signs a treaty with Germany formally ending its participation in the war. Harsh terms imposed by the Germans force the Russians to yield a quarter of their prewar territory and over half of Russia's industries. &lt;br /&gt;
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German Spring Offensives&lt;br /&gt;
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March 21, 1918 - Germany's all-out gamble for victory begins upon the launch of the first of a series of successive spring offensives on the Western Front. The Saint Michael Offensive, named after Germany's patron saint, begins after a five-hour 6,000-gun artillery bombardment as 65 divisions from the German 2nd, 17th and 18th Armies attack the British 3rd and 5th Armies along a 60-mile front in the Somme. At first it seems destined to succeed as the thinly stretched British 5th Army is quickly overrun and wrecked. Using effective storm troop tactics, the Germans recapture all of the ground they lost in 1916 during the Battle of the Somme and press forward. However, during the two week offensive, the British 3rd Army manages to hold itself together and prevents the Germans from taking Arras and Amiens, key objectives of the offensive.&lt;br /&gt;
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March 26, 1918 - At a strategic conference in Doullens, France, the British and French agree to appoint an Allied Supreme Commander on the Western Front, in place of the separate commanders they had been using, to better coordinate their efforts. Ferdinand Foch, Petain's highly regarded chief of staff, accepts the position.&lt;br /&gt;
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April 1, 1918 - Britain's Royal Air Force (RAF) is founded upon the merging of the Royal Flying Corps and Royal Naval Air Service. By now, the British aviation industry has become the world leader. &lt;br /&gt;
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April 9-29, 1918 - The second offensive in Germany's victory gamble, the Georgette Offensive, begins as 46 divisions from the German 6th Army attack the British 2nd Army around Ypres. The Germans push the British back three miles to the outskirts of Ypres, even taking back the hard-won Passchendaele Ridge. However, the arrival of British, French and Australian reinforcements from the south breaks the German momentum and the offensive halts. Georgette, similar to Michael, is only a partial success. General Ludendorff's goal of first separating the British and French armies via Michael and then destroying the British via Michael and Georgette is not achieved. Additionally, the Germans suffer 330,000 casualties in the two offensives and lack sufficient reserve troops.&lt;br /&gt;
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April 21, 1918 - Germany's Red Baron (Manfred von Richthofen) is shot down and killed by the British. The German Ace was credited with shooting down 80 Allied aircraft. He is buried with military honors by the British.&lt;br /&gt;
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May 27-June 3, 1918 - The Blücher-Yorck Offensive, Germany's third in a row, begins with the goal of bogging down the Allies in central France, thus preventing further reinforcements from reaching British positions in the north. Forty-one divisions of the German 1st and 7th Armies successfully attack the inadequate defenses of the French 6th Army along a 25-mile front east of the Aisne River. After a highly effective artillery barrage, German storm troops roll over the decimated 6th Army. This startling success emboldens General Ludendorff to change his overall strategy. He decides to make a run for Paris, hoping to draw the Allies into a final climactic battle that will decide the war. Within two days, the Germans cross the Aisne River and rapidly advance westward, coming within 50 miles of Paris. But the troops have been pushed to the limit for too long and soon succumb to exhaustion, unable to maintain the breakneck pace. The advance sputters to a halt as Allied reinforcements, including Americans, pour in to the region. &lt;br /&gt;
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First American Action&lt;br /&gt;
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May 28-29, 1918 - Troops of the U.S. 1st Infantry Division capture the village of Cantigny from the Germans and hold it. The American Expeditionary Force (AEF) is commanded by General John Pershing who is determined to maintain all-American fighting units, rather than parcel out American troops to the British and French armies. By now, 650,000 American soldiers have arrived in France, with the number growing by 10,000 per day.&lt;br /&gt;
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June 6, 1918 - The Battle of Belleau Wood involving the U.S. 2nd Infantry Division begins. During the three-week fight against the Germans, Americans experience their first significant battlefield casualties with 5,000 killed.&lt;br /&gt;
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June 9, 1918 - The Germans launch their fourth offensive, once more with an eye toward Paris. In the hastily arranged Gneisenau Offensive the German 18th Army attacks in a southwest direction toward Paris. However, the Germans are stopped as French and American troops successfully counter-attack and the new offensive withers after just four days.&lt;br /&gt;
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June 15, 1918 - Austrian troops begin an offensive along the Piave River in Italy, at the urging of the Germans. Although suffering from a lack of food, horses and supplies, they cross the river and establish a 12-mile front, but then realize they can not hold it against the now-revitalized Italian Army and withdraw after suffering 150,000 casualties. Following this, Austrian soldiers in Italy begin deserting.&lt;br /&gt;
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Mid 1918 - Soldiers from all sides begin to succumb to a deadly strain of influenza. Troop losses from the flu epidemic soon exceed combat casualties, especially weakening the hard-pressed German Army. The worldwide epidemic lasts for about a year, killing an estimated 20 million persons, then vanishes as strangely as it had appeared.&lt;br /&gt;
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July 15-17, 1918 - The last German offensive of the war, the Marne-Reims Offensive, begins with a two-pronged attack around Reims, France, by 52 divisions. The Allies have been anticipating this battle and lie in wait. The German attack to the east of Reims is crushed that day by the French. To the west of Reims, the advance is blocked by the U.S. 3rd Infantry Division, followed by a successful French and American counter-attack. &lt;br /&gt;
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July 17, 1918 - Russian Bolsheviks murder former Czar Nicholas and his entire family. By now, an all-out civil war has erupted in Russia that features indiscriminate killings of civilians and captured fighters. Amid the chaos, disease and starvation envelop Russia. The fighting between Bolsheviks and their opponents will last three years, ending with a Bolshevik victory amid a Russian death toll estimated at 15 million persons.&lt;br /&gt;
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Allied Counter-Offensives&lt;br /&gt;
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July 18, 1918 - A combined French and American attack along the Marne marks the first in a series of coordinated Allied counter-offensives on the Western Front. Three French armies accompanied by five American divisions cross the Marne River. In the face of this assault, the German 7th and 9th Armies begin a withdrawal from the Marne.&lt;br /&gt;
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August 8, 1918 - Germans in the Somme experience the "Black Day of the German Army" as later described by General Ludendorff. This occurs as the British 4th Army using 456 tanks attacks German positions east of Amiens. Six German divisions quickly fall apart and 13,000 prisoners are taken during the rapid 7-mile advance. The attack is only slowed when the Germans rush in nine divisions, their last reserves on the Western Front. &lt;br /&gt;
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August 20, 1918 - The French 10th Army takes 8,000 prisoners at Noyon and captures the Aisne Heights.&lt;br /&gt;
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August 21, 1918 - The British 3rd Army begins an attack along a 10-mile front south of Arras, while the adjacent 4th Army resumes it attack in the Somme, as the Germans continue to fall back.&lt;br /&gt;
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September 12, 1918 - The first stand-alone attack by Americans occurs as the U.S. 1st Army attacks the southernmost portion of the Western Front in France at St. Mihiel. The offensive is supported by an unprecedented 1,476 Allied aircraft used as part of a coordinated air-ground attack. Within 36 hours, the Americans take 15,000 prisoners and capture over 400 pieces of artillery as the Germans withdraw. &lt;br /&gt;
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September 15, 1918 - The Allies push the Bulgarians out of Serbia as French, Serbian and Italian troops make rapid gains, advancing nearly 20 miles northward from Greece in three days. Bulgarian troops attempting to redeploy westward through the narrow Kosturino Pass are relentlessly bombarded by airplanes and overall troop morale collapses. Meanwhile, political turmoil strikes at home as anti-war riots erupt in Bulgaria's cities along with Russian-style revolutionary fervor that results in the proclamation of local soviets.&lt;br /&gt;
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September 19, 1918 - In the Middle East, the Allies launch a cavalry attack to push the Turks out of Palestine. Australian and Indian cavalry divisions smash through the Turkish defenses around Megiddo on the first day and gallop northward, as British infantry follow, while the RAF and Arab fighters disrupt communication and supply lines. As the Turkish armies collapse, they withdraw northward toward Damascus with the Allies in pursuit. &lt;br /&gt;
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September 26, 1918 - The U.S. 1st Army and French 4th Army begin a joint offensive to clear out the strongly defended corridor between the Meuse River and the Argonne Forest. Here, the Germans do not fall back and the battle soon resembles action from earlier years in the war. Amid a steady rain, the troops advance yard-by-yard over the muddy, crater-filled terrain with 75,000 American casualties suffered over six weeks of fighting. &lt;br /&gt;
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Hindenburg Line Broken&lt;br /&gt;
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September 27, 1918 - The British 1st and 3rd Armies, aided by Australians and the U.S. 2nd Corps, break through a 20-mile portion of the Hindenburg Line between Cambrai and St. Quentin. &lt;br /&gt;
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September 28, 1918 - Belgian and British troops push back the Germans in the Fourth Battle of Ypres. Unlike the previous drawn-out battles, this one lasts just two days as the Belgians take Dixmude and the British secure Messines. &lt;br /&gt;
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September 28, 1918 - Confronted by the unstoppable strength of the Allies and faced with the prospect of an outright military defeat on the Western Front, General Ludendorff suffers a nervous collapse at his headquarters, losing all hope for victory. He then informs his superior, Paul von Hindenburg, the war must be ended. The next day, Ludendorff, accompanied by Hindenburg, meet with the Kaiser and urge him to end the war. The Kaiser's army is becoming weaker by the day amid irreversible troop losses, declining discipline and battle-readiness due to exhaustion, illness, food shortages, desertions and drunkenness. The Kaiser takes heed from Hindenburg and Ludendorff, and agrees with the need for an armistice. &lt;br /&gt;
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September 29, 1918 - Bulgaria signs an armistice with the Allies, becoming the first of the Central Powers to quit the war.&lt;br /&gt;
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October 1, 1918 - In the Middle East, Damascus is captured by Australian troops and Arab fighters. &lt;br /&gt;
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October 2, 1918 - A military representative sent by Ludendorff to Berlin informs the legislature the war is lost and that armistice discussions should begin immediately. The German politicians are shocked by the news, having largely been kept in the dark by the General Staff and the Kaiser till now. &lt;br /&gt;
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Germans Request Armistice&lt;br /&gt;
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October 4, 1918 - President Woodrow Wilson receives a request from the German government, sent via the Swiss, asking for armistice discussions on the basis of his Fourteen Points. The Germans have bypassed the French and British in the hope of negotiating with Wilson who they perceive as more lenient. They are disappointed, however, when Wilson responds with a list of demands as a prelude to discussions including German withdrawal from all occupied territories and a total halt of U-Boat attacks. &lt;br /&gt;
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October 5, 1918 - The Allies break through the last remnants of the Hindenburg Line. &lt;br /&gt;
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October 6, 1918 - A provisional government proclaims the state of Yugoslavia, signaling the beginning of the breakup of the old Hapsburg (Austro-Hungarian) Empire in central Europe which had existed for six centuries. &lt;br /&gt;
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October 7, 1918 - Poland, formerly part of the Russian Empire, proclaims itself as an independent state.&lt;br /&gt;
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October 8, 1918 - The British 3rd and 4th Armies take 8,000 German prisoners while advancing toward Cambrai and LeCateau. &lt;br /&gt;
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October 13, 1918 - The Germans engage in a general retreat along a 60-mile portion of the Western Front in France stretching from St. Quentin southward to the Argonne Forest, as French and American armies steadily advance.&lt;br /&gt;
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October 14, 1918 - Germans abandon positions along the Belgian coast and northernmost France as the British and Belgians steadily advance.&lt;br /&gt;
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October 17, 1918 - King Albert of Belgium enters the city of Ostend on the Belgian coast. &lt;br /&gt;
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October 23, 1918 - Under pressure from the French and British, President Wilson informs the German government that armistice negotiations can not ensue with the current military or Imperial war leaders still in place. An outraged General Ludendorff then disavows the negotiations as 'unconditional surrender' and is forced to resign by the Kaiser. In the face of such turmoil, the armistice negotiations are conducted principally by civilian members of Germany's government. This will become the basis of a postwar "stab in the back" claim by German militarists asserting their troops at the Front were sold out by the politicians back home. &lt;br /&gt;
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October 24, 1918 - In southern Europe, the Allies cross the Piave River to push the Austrians out of Italy as seven Italian armies, incorporating British, French and American divisions, attack the four remaining Austro-Hungarian armies from the Trentino westward to the Gulf of Venice. In its final battle of the war, the Austro-Hungarian Army sees 30,000 soldiers killed and over 400,000 taken prisoner. &lt;br /&gt;
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October 29, 1918 - The Czechs declare their independence from Austria. Two days later, Slovakia declares independence from Hungary. Czechoslovakia is subsequently formed. &lt;br /&gt;
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October 30, 1918 - Turkey signs an armistice with the Allies, becoming the second of the Central Powers to quit the war.&lt;br /&gt;
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November 1, 1918 - Belgrade is liberated by French and Serbian troops.&lt;br /&gt;
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November 1, 1918 - After pausing to regroup and resupply, Allied armies resume their eastward march as the U.S. 1st Army and newly formed U.S. 2nd Army attack remaining German positions along the Meuse River near southern Belgium, while the Belgians and British move toward Ghent and Mons in Belgium. &lt;br /&gt;
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November 3, 1918 - Mutiny strikes the German Navy at the ports of Kiel and Wilhelmshaven as sailors refuse orders to put to sea to engage in a final colossal battle with the British Navy. Along with this, revolutionary fervor and Bolshevist-style uprisings erupt in German cities including Munich, Stuttgart and Berlin. The extent of the unrest stuns German leaders, and even the Allies, who fear Germany might now succumb to a violent Bolshevist revolution in the manner of Russia. This brings a stark urgency to the armistice negotiations.&lt;br /&gt;
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November 3, 1918 - The only remaining ally of Germany, Austria-Hungary, signs an armistice with Italy, leaving Germany alone in the war. &lt;br /&gt;
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November 5, 1918 - The Germans are informed by President Wilson that armistice discussions can begin on the basis of his Fourteen Points as they requested, but that an armistice must be secured through France's Marshal Foch, the Allied Supreme Commander.&lt;br /&gt;
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November 8, 1918 - At Compiègne, France, six representatives of the German government, with Matthias Erzberger as spokesman, are brusquely presented with armistice terms by Marshal Ferdinand Foch. The terms include German evacuation of all occupied territory, an Allied occupation of Germany west of the Rhine River, surrender of weaponry including all subs and battleships, and indefinite continuation of the naval blockade.&lt;br /&gt;
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November 9, 1918 - The Kaiser's Imperial government collapses in ruin as a German republic is proclaimed with Friedrich Ebert heading the new provisional government. Kaiser Wilhelm then seeks refuge in Holland amid concerns for his safety after his generals warn him they may not be able to adequately protect him from the volatile situation in Germany.&lt;br /&gt;
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Armistice Ends Fighting&lt;br /&gt;
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November 11, 1918 - At 5:10 am, in a railway car at Compiègne, France, the Germans sign the Armistice which is effective at 11 am--the eleventh hour of the eleventh day of the eleventh month. Fighting continues all along the Western Front until precisely 11 o'clock, with 2,000 casualties experienced that day by all sides. Artillery barrages also erupt as 11 am draws near as soldiers yearn to claim they fired the very last shot in the war.&lt;br /&gt;
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November 12, 1918 - A final action occurs as Germans in Africa under the command of the elusive General Paul von Lettow-Vorbeck encounter British troops in Northern Rhodesia, where news of the Armistice had not reached the Germans.&lt;br /&gt;
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January 6, 1919 - An attempt to overthrow Germany's provisional government occurs in Berlin as several buildings are seized by members of the communist Spartacus League led by Karl Liebknecht. The revolution is violently thwarted by bands of Freikorps composed of ex-soldiers led by former German Army officers and Liebknecht is killed. &lt;br /&gt;
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January 18, 1919 - The Paris Peace Conference opens with delegates from 32 nations invited. President Woodrow Wilson attends, marking the first-ever visit to Europe by a sitting president.&lt;br /&gt;
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January 19, 1919 - The first-ever nationwide election in Germany results in pro-democracy political parties getting 75 percent of the vote. &lt;br /&gt;
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February 6, 1919 - The newly elected German Assembly meets in Weimar and begins work on a new democratic constitution. &lt;br /&gt;
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April 28, 1919 - The League of Nations is founded, championed by President Wilson as a means of peaceably resolving future conflicts. Germany is excluded for the time being. Despite Wilson's intentions, the United States never joins as an isolationist-minded U.S. Senate subsequently rejects membership to avoid further European entanglements.&lt;br /&gt;
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June 21, 1919 - The Germans sink 74 of their own warships in anticipation of being forced to yield them to the Allies. &lt;br /&gt;
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Treaty of Versailles&lt;br /&gt;
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June 28, 1919 - At the Palace of Versailles in France, a German delegation signs the Treaty formally ending the war. Its 230 pages contain terms that have little in common with Wilson's Fourteen Points as the Germans had hoped. Germans back home react with mass demonstrations against the perceived harshness, especially clauses that assess sole blame for the war on Germany. &lt;br /&gt;
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July 31, 1919 - The Weimar Republic is born in Germany from a new constitution which provides for a liberal democracy. The government consists of two houses of Parliament (Reichstag) and a president elected by the people. The president can dissolve the Reichstag and rule by decree in the event of an emergency. &lt;br /&gt;
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September 1919 - Corporal Adolf Hitler is ordered by the German Army to investigate a small political group in Munich called the German Workers' Party. Hitler soon joins the group and begins to build it up, later changing its name to the National Socialist German Workers' (Nazi) Party. The anti-democratic group vehemently opposes the Treaty of Versailles and claims the German Army was not defeated on the battlefield but was betrayed by a "stab in the back" wrought by disloyal politicians on the home front.&lt;br /&gt;
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March 1920 - Freikorps groups attempt but fail to overthrow Germany's democratic government during the Kapp Putsch.&lt;br /&gt;
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April 1921 - The Reparations Commission announces Germany must pay the Allies $28 billion over 42 years, via annual payments of cash and goods such as coal and timber.&lt;br /&gt;
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April 1922 - Germany and Soviet Russia conclude the Treaty of Rapallo allowing for economic collaboration. Secret clauses in the treaty provide for German military activities prohibited by the Treaty of Versailles, including weapons manufacturing, to be done in Soviet Russia.&lt;br /&gt;
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January 1923 - After Germany falls behind on its war reparation payments, French and Belgian troops occupy the Ruhr industrial region inside Germany. Workers there react by walking off the job. In a defiant show of support, the German government sends money to the out-of-work protestors. However, this soon leads to ruinous inflation and devaluation of the German deutsche mark--eventually four billion to the dollar--as the government prints an unlimited amount of money to satisfy its needs. &lt;br /&gt;
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November 9, 1923 - Three thousand Nazis led by Adolf Hitler, and aided by former General Erich Ludendorff, attempt but fail to overthrow Germany's democratic government by staging an armed Putsch in Munich. Hitler is then sentenced to prison where he composes Mein Kampf a book outlining his racial, political and military philosophies, including the need for Germany to forcibly expand its borders eastward into Russia. The Nazis remain a fringe group until the worldwide economic collapse of 1929 causes political turmoil in Germany that generates popular support for Hitler, resulting in the election of Nazis to the government.&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-2707314272267649?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;strong&gt;&lt;span style="color: blue;"&gt;20 Things You Didn't Know About... Time&lt;/span&gt;&lt;/strong&gt; &lt;br /&gt;
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1 “Time is an illusion. Lunchtime doubly so,” joked Douglas Adams in The Hitchhiker’s Guide to the Galaxy. Scientists aren’t laughing, though. Some speculative new physics theories suggest that time emerges from a more fundamental—and timeless—reality.&lt;br /&gt;
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2 Try explaining that when you get to work late. The average U.S. city commuter loses 38 hours a year to traffic delays.&lt;br /&gt;
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3 Wonder why you have to set your clock ahead in March? Daylight Saving Time began as a joke by Benjamin Franklin, who proposed waking people earlier on bright summer mornings so they might work more during the day and thus save candles. It was introduced in the U.K. in 1917 and then spread around the world.&lt;br /&gt;
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4 Green days. The Department of Energy estimates that electricity demand drops by 0.5 percent during Daylight Saving Time, saving the equivalent of nearly 3 million barrels of oil.&lt;br /&gt;
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5 By observing how quickly bank tellers made change, pedestrians walked, and postal clerks spoke, psychologists determined that the three fastest-paced U.S. cities are Boston, Buffalo, and New York.&lt;br /&gt;
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6 The three slowest? Shreveport, Sacramento, and L.A.&lt;br /&gt;
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7 One second used to be defined as 1/86,400 the length of a day. However, Earth’s rotation isn’t perfectly reliable. Tidal friction from the sun and moon slows our planet and increases the length of a day by 3 milli­seconds per century.&lt;br /&gt;
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8 This means that in the time of the dinosaurs, the day was just 23 hours long.&lt;br /&gt;
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9 Weather also changes the day. During El Niño events, strong winds can slow Earth’s rotation by a fraction of a milli­second every 24 hours.&lt;br /&gt;
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10 Modern technology can do better. In 1972 a network of atomic clocks in more than 50 countries was made the final authority on time, so accurate that it takes 31.7 million years to lose about one second.&lt;br /&gt;
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11 To keep this time in sync with Earth’s slowing rotation, a “leap second” must be added every few years, most recently this past New Year’s Eve.&lt;br /&gt;
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12 The world’s most accurate clock, at the National Institute of Standards and Technology in Colorado, measures vibrations of a single atom of mercury. In a billion years it will not lose one second.&lt;br /&gt;
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13 Until the 1800s, every village lived in its own little time zone, with clocks synchronized to the local solar noon.&lt;br /&gt;
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14 This caused havoc with the advent of trains and timetables. For a while watches were made that could tell both local time and “railway time.”&lt;br /&gt;
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15 On November 18, 1883, American railway companies forced the national adoption of standardized time zones&lt;br /&gt;
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16 Thinking about how railway time required clocks in different places to be synchronized may have inspired Einstein to develop his theory of relativity, which unifies space and time.&lt;br /&gt;
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17 Einstein showed that gravity makes time run more slowly. Thus airplane passengers, flying where Earth’s pull is weaker, age a few extra nano­seconds each flight.&lt;br /&gt;
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18 According to quantum theory, the shortest moment of time that can exist is known as Planck time, or 0.000000000000000000 00000000000000000000 00001 second.&lt;br /&gt;
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19 Time has not been around forever. Most scientists believe it was created along with the rest of the universe in the Big Bang, 13.7 billion years ago.&lt;br /&gt;
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20 There may be an end of time. Three Spanish scientists posit that the observed acceleration of the expanding cosmos is an illusion caused by the slowing of time. According to their math, time may eventually stop, at which point everything will come to a standstill ......&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-3949077939086964196?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;strong&gt;&lt;span style="color: blue;"&gt;10 Tips for Successful Career Planning&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
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Career planning is not an activity that should be done once -- in high school or college -- and then left behind as we move forward in our jobs and careers. Rather, career planning is an activity that is best done on a regular basis -- especially given the data that the average worker will change careers (not jobs) multiple times over his or her lifetime. And it's never too soon or too late to start your career planning. &lt;br /&gt;
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Career planning is not a hard activity, not something to be dreaded or put off, but rather an activity that should be liberating and fulfilling, providing goals to achieve in your current career or plans for beginning a transition to a new career. Career planning should be a rewarding and positive experience. &lt;br /&gt;
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Here, then, are 10 tips to help you achieve successful career planning. &lt;br /&gt;
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1. Make Career Planning an Annual Event&lt;br /&gt;
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Many of us have physicals, visit the eye doctor and dentist, and do a myriad of other things on an annual basis, so why not career planning? Find a day or weekend once a year -- more often if you feel the need or if you're planning a major career change -- and schedule a retreat for yourself. Try to block out all distractions so that you have the time to truly focus on your career -- what you really want out of your career, out of your life. &lt;br /&gt;
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By making career planning an annual event, you will feel more secure in your career choice and direction -- and you'll be better prepared for the many uncertainties and difficulties that lie ahead in all of our jobs and career. &lt;br /&gt;
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2. Map Your Path Since Last Career Planning&lt;br /&gt;
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One of your first activities whenever you take on career planning is spending time mapping out your job and career path since the last time you did any sort of career planning. While you should not dwell on your past, taking the time to review and reflect on the path -- whether straight and narrow or one filled with any curves and dead-ends -- will help you plan for the future. &lt;br /&gt;
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Once you've mapped your past, take the time to reflect on your course -- and note why it looks the way it does. Are you happy with your path? Could you have done things better? What might you have done differently? What can you do differently in the future? &lt;br /&gt;
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3. Reflect on Your Likes and Dislikes, Needs and Wants&lt;br /&gt;
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Change is a factor of life; everybody changes, as do our likes and dislikes. Something we loved doing two years ago may now give us displeasure. So always take time to reflect on the things in your life -- not just in your job -- that you feel most strongly about. &lt;br /&gt;
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Make a two-column list of your major likes and dislikes. Then use this list to examine your current job and career path. If your job and career still fall mostly in the like column, then you know you are still on the right path; however, if your job activities fall mostly in the dislike column, now is the time to begin examining new jobs and new careers. &lt;br /&gt;
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Finally, take the time to really think about what it is you want or need from your work, from your career. Are you looking to make a difference in the world? To be famous? To become financially independent? To effect change? Take the time to understand the motives that drive your sense of success and happiness. &lt;br /&gt;
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4. Examine Your Pastimes and Hobbies&lt;br /&gt;
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Career planning provides a great time to also examine the activities you like doing when you're not working. It may sound a bit odd, to examine non-work activities when doing career planning, but it's not. Many times your hobbies and leisurely pursuits can give you great insight into future career paths. &lt;br /&gt;
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Think you can't make a hobby into a career? People do it all the time. The great painter Paul Gauguin was a successful business person who painted on the side. It actually wasn't until he was encouraged by an artist he admired to continue painting that he finally took a serious look at his hobby and decided he should change careers. He was good at business, but his love was painting. &lt;br /&gt;
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5. Make Note of Your Past Accomplishments&lt;br /&gt;
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Most people don't keep a very good record of work accomplishments and then struggle with creating a powerful resume when it's time to search for a new job. Making note of your past accomplishments -- keeping a record of them -- is not only useful for building your resume, it's also useful for career planning. &lt;br /&gt;
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Sometimes reviewing your past accomplishments will reveal forgotten successes, one or more which may trigger researching and planning a career shift so that you can be in a job that allows you to accomplish the types of things that make you most happy and proud. &lt;br /&gt;
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For more about accomplishments, read: Tracking and Leveraging Accomplishments. &lt;br /&gt;
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6. Look Beyond Your Current Job for Transferable Skills&lt;br /&gt;
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Some workers get so wrapped up in their job titles that they don't see any other career possibilities for themselves. Every job requires a certain set of skills, and it's much better to categorize yourself in terms of these skill sets than be so myopic as to focus just on job titles. &lt;br /&gt;
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For example, one job-seeker who was trying to accomplish career planning found herself stuck because she identified herself as a reporter. But once she looked beyond her job title, she could see that she had this strong collection of transferable skills -- such as writing, editing, researching, investigating, interviewing, juggling multiple tasks, meeting goals and deadlines, and managing time and information -- skills that could easily be applied to a wide variety of jobs in many different careers. &lt;br /&gt;
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For more about transferable skills, read: Transferable Skills. &lt;br /&gt;
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7. Review Career and Job Trends&lt;br /&gt;
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Everyone makes his or her own job and career opportunities, so that even if your career is shrinking, if you have excellent skills and know how to market yourself, you should be able to find a new job. However, having information about career trends is vital to long-term career planning success. &lt;br /&gt;
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A career path that is expanding today could easily shrink tomorrow -- or next year. It's important to see where job growth is expected, especially in the career fields that most interest you. Besides knowledge of these trends, the other advantage of conducting this research is the power it gives you to adjust and strengthen your position, your unique selling proposition. One of the keys to job and career success is having a unique set of accomplishments, skills, and education that make you better than all others in your career. &lt;br /&gt;
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For more about researching careers, review our Career Research Checklist. &lt;br /&gt;
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8. Set Career and Job Goals&lt;br /&gt;
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Develop a roadmap for your job and career success. Can you be successful in your career without setting goals? Of course. Can you be even more successful through goal-setting? Most research says yes. &lt;br /&gt;
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A major component of career planning is setting short-term (in the coming year) and long-term (beyond a year) career and job goals. Once you initiate this process, another component of career planning becomes reviewing and adjusting those goals as your career plans progress or change - and developing new goals once you accomplish your previous goals. &lt;br /&gt;
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9. Explore New Education/Training Opportunities&lt;br /&gt;
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It's somewhat of a cliche, but information really does lead to power and success. Never pass up chances to learn and grow more as a person and as a worker; part of career planning is going beyond passive acceptance of training opportunities to finding new ones that will help enhance or further your career. &lt;br /&gt;
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Take the time to contemplate what types of educational experiences will help you achieve your career goals. Look within your company, your professional association, your local universities and community colleges, as well as online distance learning programs, to find potential career-enhancing opportunities -- and then find a way achieve them. &lt;br /&gt;
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10. Research Further Career/Job Advancement Opportunities&lt;br /&gt;
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One of the really fun outcomes of career planning is picturing yourself in the future. Where will you be in a year? In five years? A key component to developing multiple scenarios of that future is researching career paths. &lt;br /&gt;
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Of course, if you're in what you consider a dead-end job, this activity becomes even more essential to you, but all job-seekers should take the time to research various career paths -- and then develop scenarios for seeing one or more of these visions become reality. Look within your current employer and current career field, but again, as with all aspects of career planning, do not be afraid to look beyond to other possible careers. &lt;br /&gt;
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Final Thoughts on Career Planning&lt;br /&gt;
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Don't wait too long between career planning sessions. Career planning can have multiple benefits, from goal-setting to career change, to a more successful life. Once you begin regularly reviewing and planning your career using the tips provided in this article, you'll find yourself better prepared for whatever lies ahead in your career -- and in your life.&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-6708990661589500460?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;span style="color: blue;"&gt;Principles for a Successful Life&lt;/span&gt;&lt;br /&gt;
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A successful life is a satisfying life. It is one where you are healthy, happy and fulfilled in your existence. Most people would like to lead such a life, but many think it is not easy to do. In fact, it is not that difficult. Much of what happens to you in your life is a result of your philosophy or way of thinking and the principles you follow, as well as your attitude toward things.&lt;br /&gt;
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Questions you may have include:&lt;br /&gt;
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What type of philosophy do I need to have? &lt;br /&gt;
How do attitude, health and wealth fit in? &lt;br /&gt;
What do I need to do to get started? &lt;br /&gt;
This lesson will answer those questions. There is a mini-quiz near the end of the lesson.&lt;br /&gt;
Have a positive philosophy&lt;br /&gt;
In order to lead a good, well or satisfying life, you need a positive philosophy toward the major components in your life. These components are your:&lt;br /&gt;
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Attitude &lt;br /&gt;
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Health: Physical, Emotional and Spiritual &lt;br /&gt;
Communications: Sensing the world and Social interactions &lt;br /&gt;
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Knowledge &lt;br /&gt;
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Activities: Vocation and Leisure &lt;br /&gt;
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Be good in each&lt;br /&gt;
&lt;br /&gt;
You can be good and attain satisfaction in each of these items, leading to a happy and healthy life.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Attitude&lt;br /&gt;
&lt;br /&gt;
Your attitude can make your life satisfying, if you:&lt;br /&gt;
&lt;br /&gt;
Enjoy life &lt;br /&gt;
&lt;br /&gt;
Be accountable for your own well being &lt;br /&gt;
Think in terms of taking care of your whole person&lt;br /&gt;
your body&lt;br /&gt;
mind and spirit &lt;br /&gt;
&lt;br /&gt;
Health&lt;br /&gt;
&lt;br /&gt;
The following are ways to attain wellness in the different types of health.&lt;br /&gt;
&lt;br /&gt;
Physical health&lt;br /&gt;
&lt;br /&gt;
Good physical health can make your life satisfying, if you:&lt;br /&gt;
Are physically active &lt;br /&gt;
&lt;br /&gt;
Eat frugally &lt;br /&gt;
&lt;br /&gt;
Minimize medical invasiveness &lt;br /&gt;
&lt;br /&gt;
Emotional health&lt;br /&gt;
&lt;br /&gt;
Good emotional health can make your life satisfying, if you:&lt;br /&gt;
Handle stress well &lt;br /&gt;
Are aware of your feelings &lt;br /&gt;
Appreciate the talents you have &lt;br /&gt;
Spiritual health&lt;br /&gt;
Good spiritual health can make your life satisfying, if you:&lt;br /&gt;
Are forgiving &lt;br /&gt;
Are grateful &lt;br /&gt;
Are at peace &lt;br /&gt;
Communication&lt;br /&gt;
The following are ways to attain wellness in the areas of communication.&lt;br /&gt;
Sensing the world&lt;br /&gt;
Effective sensing of the world around you can make your life more satisfying, if you:&lt;br /&gt;
Are observant &lt;br /&gt;
Are curious &lt;br /&gt;
&lt;br /&gt;
Use all your senses &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Social interactions&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Good social interactions can make your life satisfying, if you:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Have respect for other people &lt;br /&gt;
&lt;br /&gt;
Try to have everyone win &lt;br /&gt;
&lt;br /&gt;
Live for today &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Intellect&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Good intellect can make your life satisfying, if you:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Think mindfully &lt;br /&gt;
&lt;br /&gt;
Are creative &lt;br /&gt;
&lt;br /&gt;
Continually grow &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Vocation&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
A good vocation can make your life satisfying, if you:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Have a purpose &lt;br /&gt;
&lt;br /&gt;
Help others &lt;br /&gt;
&lt;br /&gt;
Are concerned about future generations &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Summary&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
By taking care of your attitude, physical health, emotional health, spiritual health, social interactions, intellect, and vocation, you should lead a good life.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;/span&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/3682022257975363093-4446458504646882906?l=whitemafiya.blogspot.com' alt='' /&gt;&lt;/div&gt;
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&lt;a href="http://feedads.g.doubleclick.net/~a/NvuvsR7jRsll_PpwC1oPAzU3kKw/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/NvuvsR7jRsll_PpwC1oPAzU3kKw/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/EntertainmentKiDuniya/~4/E-dtDvDS3bw" height="1" width="1"/&gt;</content><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/4446458504646882906?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/3682022257975363093/posts/default/4446458504646882906?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/EntertainmentKiDuniya/~3/E-dtDvDS3bw/principles-for-successful-life.html" title="Principles for Successful Life" /><author><name>Zulfiqar Ali</name><uri>http://www.blogger.com/profile/11949845630178125165</uri><email>noreply@blogger.com</email><gd:extendedProperty name="OpenSocialUserId" value="17477032422373105585" /></author><feedburner:origLink>http://whitemafiya.blogspot.com/2010/03/principles-for-successful-life.html</feedburner:origLink></entry><entry gd:etag="W/&quot;D0AMSH0-cCp7ImA9WxBUF00.&quot;"><id>tag:blogger.com,1999:blog-3682022257975363093.post-4559426186052054115</id><published>2010-03-03T00:21:00.004+05:00</published><updated>2010-03-04T17:29:49.358+05:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2010-03-04T17:29:49.358+05:00</app:edited><title>General Knoledge</title><content type="html">&lt;a name='more'&gt;&lt;/a&gt;&amp;nbsp; &lt;strong&gt;&lt;span style="color: blue; font-size: large;"&gt;Top Ten Intelligence Agensies in the world.. &lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;strong&gt;&lt;span style="color: blue; font-size: large;"&gt;&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Number 1&lt;br /&gt;
&lt;br /&gt;
CIA&lt;br /&gt;
&lt;br /&gt;
Location: United States&lt;br /&gt;
&lt;br /&gt;
Founded in 1947, the Central Intelligence Agency (CIA) has three stated functions: 1) Obtaining and analyzing information about foreigners; 2) Propaganda and public relations; and, 3) Covert operations at the direction of the president. The CIA was given enormous leeway to operate during the Cold War, as the American government felt that such free reign was necessary to successfully combat the USSR's agency, the KGB. As a result, the CIA was engaged in many coups and assassination attempts overseas, both successful (Chile, Congo) and unsuccessful (Cuba).&lt;br /&gt;
Claim to fame: The Bay of Pigs invasion may be more notorious, but Project BLUEBIRD is more shocking. From 1951 to 1953, the CIA conducted mind-control experiments in order to explore the creation of new identities, multiple personalities and false memories. The research entailed placing brain electrodes in people and controlling their behavior with remote transmitters, administering daily dosages of LSD-25 to children for extended periods of time, and using electroconvulsive therapy to erase memories.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Number 2&lt;br /&gt;
&lt;br /&gt;
MI6&lt;br /&gt;
&lt;br /&gt;
Location: United Kingdom&lt;br /&gt;
&lt;br /&gt;
MI6 or, as it is known formally, the Secret Intelligence Service, was created just prior to World War I primarily to keep a close eye on the activities of the Imperial German government. Since then, MI6 has been heavily engaged during the major conflicts of the 20th and 21st centuries. Even before the 9/11 attacks, MI6 actively collaborated with their American counterparts in order to share intelligence and carry out particularly dicey covert ops. The MI6, in conjunction with the CIA, effected the toppling of several regimes, most notoriously in the Congo in 1961 and Iran in 1953.&lt;br /&gt;
Claim to fame: Aside from the time Bond bedded Pussy Galore, MI6's most successful solo mission in recent years was the quelling the hostage-taking of Westerners in Lebanon in the 1980s. Specifically, MI6 agents triggered an internal conflict between Lebanese paramilitary groups, effectively distracting them from further hostage-taking.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Number 3&lt;br /&gt;
&lt;br /&gt;
GRU&lt;br /&gt;
&lt;br /&gt;
Location: Russia&lt;br /&gt;
&lt;br /&gt;
When one thinks of Russian intelligence, they usually think of the KGB. But the KGB was disbanded by Boris Yeltsin in 1995, while the even older Glavnoje Razvedyvatel'noje Upravlenije (GRU) -- which means "Main Intelligence Directorate" -- has continued on, unaffected by the fall of the USSR. The GRU was created in 1918 by Vladimir Lenin, and given the task of handling all military intelligence. Since then, the GRU has taken part in significant anti-nationalist activities in Eastern Europe and according to a former agent, has infiltrated the U.S. to the extent that secret-arms caches are available for use in America by Russian agents, if necessary.&lt;br /&gt;
Claim to fame: The GRU doesn't cop to much, but they were purported to be behind the assassination of formerChechen President Zelimkhan Abdumuslimovich Yandarbiyev, who was living in Qatar in 2004 and was accused of having links to Al-Qaeda by Russia and the United Nations. The former president was assassinated when a bomb ripped through his SUV in the Qatari capital of Doha.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Number 4&lt;br /&gt;
&lt;br /&gt;
DGSE&lt;br /&gt;
&lt;br /&gt;
Location: France&lt;br /&gt;
&lt;br /&gt;
The Direction Générale de la Sécurité Extérieure (DGSE) was formed only recently, replacing the older Service de Documentation Extérieure et de Contre-Espionnage (SDECE) in 1982, and was quickly made responsible for gathering intelligence, as well as preventative work detecting and finding external espionage activities directed against French interests. The agency has generally kept a low profile, but that was not the case with 1985's Greenpeace protests against French nuclear testing, which involved the bombing of the Greenpeace fleet. New Zealand law enforcements uncovered the plot and arrested two DGSE agents who plead guilty to manslaughter in the death of a journalist who drowned in the incident.&lt;br /&gt;
Claim to fame: The DGSE quickly proved its worth in the early 1980s, when they revealed a Soviet spy network that allowed the USSR to gather info about important Western technical advances without the knowledge of Western intelligence agencies. It's still the most extensive technological spy network ever uncovered in Europe and the United States.&lt;br /&gt;
&lt;br /&gt;
Number 5&lt;br /&gt;
&lt;br /&gt;
ISI&lt;br /&gt;
&lt;br /&gt;
Location: Pakistan&lt;br /&gt;
&lt;br /&gt;
The weak performance in the sharing of intelligence between the army, navy and air force during the Indo-Pakistani War of 1947 led to the creation of the Inter-Services Intelligence (ISI) by the Pakistani government in 1948. Since then, the agency's influence has waxed and waned according to the whims/powers of Pakistani leaders. Since 9/11, ISI has actively worked with the CIA in engaging in counter-terrorism against both Al-Qaeda, Taliban militants and tribal/sectarian terrorists in Pakistan (though they have been somewhat stifled by domestic factors). The ISI is a deceptively active and powerful agency and is known for operating in an "invisible" fashion.&lt;br /&gt;
Claim to fame: In 1980, the ISI intercepted a plot to assassinate the President of Pakistan, General Muhammad Zia-ul-Haq, during a national parade. The plotters, which included high-ranking military officials, planned to launch a bloody coup to depose the government and install an extreme Islamic government in its place. The ISI arrested the would-be assassins and their backers prior to the date of the planned assassination.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Number 6&lt;br /&gt;
&lt;br /&gt;
BND&lt;br /&gt;
&lt;br /&gt;
Location: Germany&lt;br /&gt;
&lt;br /&gt;
The Bundesnachrichtendienst's (BND) predecessor agency was created prior to World War II in order to spy on the Soviet Union. Today, it allegedly acts as an early warning system to alert the German government of threats to its interests from overseas, depending very heavily on wiretapping and electronic surveillance of international communications. The annual budget of the BND is very big, exceeding 430,000,000 Euros. The BND has been embroiled in several recent domestic scandals relating to the alleged wiretapping and surveillance of journalists, and the use of reporters as spies against other journalists.&lt;br /&gt;
Claim to fame: In the run-up to the Iraq War in 2003, the German government resisted President Bush's efforts to get Germany to provide troops to the coalition. But the BND scored for the U.S. when two German agents in Baghdad managed to obtain a copy of Saddam Hussein's plan to defend the Iraqi capital. A German official passed the information on to American commanders one month before the invasion.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Number 7&lt;br /&gt;
&lt;br /&gt;
Mossad&lt;br /&gt;
&lt;br /&gt;
Location: Israel&lt;br /&gt;
&lt;br /&gt;
Israel's extremely active intelligence agency, Mossad, is responsible for intelligence collection, counter-terrorism and various covert operations. Its director reports directly to the head of state, the Prime Minister. Mossad is a civilian service, and does not use military ranks, although most of its staff have served in the Israeli defense forces as part of the country's compulsory draft system. Mossad's most notorious wing is the "Special Operations Division" or "Metsada," as it's also known. The Metsada has been involved in several assassinations, paramilitary operations, sabotage, and psychological warfare.&lt;br /&gt;
Claim to fame: In 1960, the Mossad discovered that Adolf Eichmann, a notorious Nazi war criminal, was living in Argentina under the name of Ricardo Klement. He was captured by a team of Mossad agents and smuggled in to Israel where he was tried and executed.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Number 8&lt;br /&gt;
&lt;br /&gt;
R&amp;amp;AW&lt;br /&gt;
&lt;br /&gt;
Location: India&lt;br /&gt;
&lt;br /&gt;
India's external intelligence agency, Research and Analysis Wing (R&amp;amp;AW) was created in 1968 as a response to the country's poor intelligence performance in recent wars against Pakistan and China. Unlike most Western agencies, the R&amp;amp;AW is installed as a wing of the federal cabinet and is not answerable to the Indian Parliament in any way. Much of the R&amp;amp;AW's recent energies have been focused on its neighbor, Pakistan. During the Kargil War in Kashmir in 1999, the R&amp;amp;AW was able to unearth links between Pakistani intelligence and terrorist groups, and to infiltrate militant groups in the Kashmir valley.&lt;br /&gt;
Claim to fame: The R&amp;amp;AW had a big hand in the creation of Bangladesh in 1971. The agency helped sow discord among the disgruntled populace of Bangladesh (then called East Pakistan), which led to the creation of a guerrilla Bangladeshi army. Under its cover, R&amp;amp;AW operatives infiltrated into East Pakistan for covert operations, helping defeat the Pakistani army.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Number 9&lt;br /&gt;
&lt;br /&gt;
ASIS&lt;br /&gt;
&lt;br /&gt;
Location: Australia&lt;br /&gt;
Created in 1952, the Australian Secret Intelligent Service (ASIS) agency is responsible for collecting intelligence, undertaking counter-intelligence activities and, especially, coordinating with other agencies overseas. The Australian government recently passed a controversial bill which allowed ASIS to work with other organizations like the CIA in paramilitary operations, provided ASIS agents were not personally involved in carrying them out. ASIS has been the subject of some sensational exposes over the years, including one in 1994 which claimed that the agency was secretly holding thousands of secret files on ordinary Australian citizens.&lt;br /&gt;
Claim to fame: In 1983, the normally low-profile agency garnered some unwanted attention during a training operation held at the Sheraton Hotel in Melbourne, Australia. What was intended as a mock surveillance and hostage rescue of foreign intelligence officers turned into an overzealous free-for-all, as trainees used considerable force, distressed hotel staff and guests, and physically assaulted the hotel manager while carrying out their "mission.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;strong&gt;Number 10&lt;/strong&gt;&lt;br /&gt;
&lt;strong&gt;CSIS&lt;/strong&gt;&lt;br /&gt;
Location: Canada&lt;br /&gt;
&lt;br /&gt;
The Canadian Security Intelligent Service (CSIS) was created in 1984, previous to which Canadian intelligence was handled through the RCMP (Royal Canadian Mounted Police). CSIS is patterned after the CIA and MI6, in that it is a civilian agency which is unconnected to the military or police. Canadian intelligence agents work both domestically and internationally in an effort to monitor and counter threats to Canadian security. CSIS came under enormous criticism from the Canadian public for their investigation of the bombing of Air India Flight 182 in 1985, a tragedy that claimed the lives of 280 Canadians. CSIS officials reportedly erased key wiretaps and made several strategic investigatory errors. To this date, no one has been held responsible for the bombing.&lt;br /&gt;
Claim to fame: From 1988 to 1994, CSIS agent Grant Bristow infiltrated the Canadian white-supremacist movement, becoming security chief of the Heritage Front, the most prominent white-supremacist organization in Canada. Bristow's activities led to several arrests and prevented certain incidents of planned violence. His cover was blown by a Toronto journalist in 1994.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
--------------------------------------------------------------------------------&lt;br /&gt;
&lt;br /&gt;
&lt;span style="color: blue; font-size: large;"&gt;&lt;strong&gt;* Paleontology is the science of history of life.&lt;/strong&gt;&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
* Mahavira(founder of jainism)and gautama buddha (founder of buddism) were contemporaries and flourished in india in the 6th century B.C.&lt;br /&gt;
&lt;br /&gt;
* The three pyramids of eqypt were built from 2700 to 2500 B.C.,these are tombs of khufu,khafra and menkaura.&lt;br /&gt;
&lt;br /&gt;
* The great wall of china was completed in 204 B.C.it is 1500 miles long.Its average height is 25 feet and about 12 feet wide at the top.&lt;br /&gt;
&lt;br /&gt;
* The city rome was founded in 753 B.C. by romolus.&lt;br /&gt;
&lt;br /&gt;
* Christianity emerged as the distinct sect in the second half of the first century A.D.&lt;br /&gt;
&lt;br /&gt;
* The light of islam dawned in the 7th century A.D. when in 611 A.D. The Holy Prophet of Islam Muhammad (P.B.U.H) announced the revelation from the one true Allah.&lt;br /&gt;
&lt;br /&gt;
* The muslim rule of spain lasted from 711 to 1492 A.D.&lt;br /&gt;
&lt;br /&gt;
* The earth is calculated to b 4540 million years old.&lt;br /&gt;
&lt;br /&gt;
* The statue of liberty (newyork) was installed in 1886.It is 151 feet one inch high from the base to torch.&lt;br /&gt;
&lt;br /&gt;
* The world is divided into 24 time zones,each 15` longtitude wide. the longitudinal meridian passing through greenwich,England is the starting point and is called the prime meridian.&lt;br /&gt;
&lt;br /&gt;
* Christopher columbus discovered bahamas on 12 oct 1492 A.D.&lt;br /&gt;
&lt;br /&gt;
* Ostrich is the largest bird in the world.&lt;br /&gt;
&lt;br /&gt;
* Saudi Arabia is the largest exporter of oil in the world.&lt;br /&gt;
&lt;br /&gt;
* The world famous golden gate bridge is located in San francisco(usa).&lt;br /&gt;
&lt;br /&gt;
* Russia invaded afghanistan on dec 27,1979.&lt;br /&gt;
&lt;br /&gt;
* Hongkong was returned to china on july 1,1997.&lt;br /&gt;
&lt;br /&gt;
* Eritrea became an independent state on may 24,1993.&lt;br /&gt;
&lt;br /&gt;
* The normal temperature of human body is 98.6 F.&lt;br /&gt;
&lt;br /&gt;
* A billion contain 1000 million. It has 9 zeroes. similarly a trillion has 12 zeroes,a quadrillion 15 zeroes,a quintillion 18 zeroes and a decillion 33 zeroes.&lt;br /&gt;
&lt;br /&gt;
* One inch is equal to 2.5400 cms and one mile is equal to 1.6093 kms.&lt;br /&gt;
&lt;br /&gt;
* About half of the world population speaks indo-european languages. The Indo-European branch to which english belongs is germanic.&lt;br /&gt;
&lt;br /&gt;
* Air is composed of nitrogen (78.08%),oxygen (20.95%),argon (0.94%) and carbon dioxide (0.03%).&lt;br /&gt;
&lt;br /&gt;
* The original inhabitants of USA are known as Red Indians.&lt;br /&gt;
&lt;br /&gt;
* Out of the 193 sovereign independent nations of the world 147 are republics and other 46 are under personal rules (14 kings,1 emperor,3 queens,7 hereditary sheikhs,1 grand duke,2 sultans,1 constitutional monarch etc).&lt;br /&gt;
&lt;br /&gt;
* Gwadar became a part of pakistan on september 9,1958.&lt;br /&gt;
&lt;br /&gt;
* All india mulim league was formulated on december 30,1906 and first president was Sir Agha Khan.&lt;br /&gt;
&lt;br /&gt;
* Hygrometer is instrument used for measuring humidity of air.&lt;br /&gt;
&lt;br /&gt;
* Heliscope is used for viewing the sun.&lt;br /&gt;
&lt;br /&gt;
* Asian development bank was established in 1966 with headquarter located at manila(philipine)&lt;br /&gt;
&lt;br /&gt;
* China has the largest population,russia has largest land area and vatican city has smallest population and land area in the world&lt;br /&gt;
&lt;br /&gt;
* Afghanistan got independence on 19th aug 1919.&lt;br /&gt;
&lt;br /&gt;
* Lord clive was the first and lord mountbatten was the last british ruler of india.&lt;br /&gt;
&lt;br /&gt;
* Air conditioner invented by "willis H. carrier"u.s. in 1902.&lt;br /&gt;
&lt;br /&gt;
* Camera(photographic) has been invented by "Joseph N. Niepce"france in 1822.&lt;br /&gt;
&lt;br /&gt;
* Largest continent of the world is "asia" and smallest is "australia".Largest ocean of the world is "pacific ocean"and smallest ocean is "indian ocean".The Sahara is the largest desert of the world.&lt;br /&gt;
&lt;br /&gt;
* Kazakhstan is the largest muslim country in landarea in the world.it has an area of 1,049,000 sq.miles.Maldives is the smallest muslim country in land area of 115 sq. miles.&lt;br /&gt;
&lt;br /&gt;
* Indonesia is the most populous muslim country and maldives is less populous muslim country.&lt;br /&gt;
&lt;br /&gt;
* Antarctica is the uninhabited continent of the world which is without any regular population.&lt;br /&gt;
&lt;br /&gt;
* Seoul (south korea) is the most populous city of the world.&lt;br /&gt;
&lt;br /&gt;
* The lake baikal of russia has the maximum depth of 5315 feet. &lt;br /&gt;
The largest tides of the world occur in Bay of fundy (canada). &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The earth is the densest planet of universe .It has density of 5.515 time that of water.&lt;br /&gt;
&lt;br /&gt;
Kilauea situated in Hawaii (US) is the most active volcano of the world&lt;br /&gt;
&lt;br /&gt;
Nauru, an island located in western pacific ocean, is the smallest republic of the world.&lt;br /&gt;
&lt;br /&gt;
La Paz,capital city of Bolivia (south america), is situated at an altitude of 3631 metres (12087 feet) from the sea level.&lt;br /&gt;
&lt;br /&gt;
The panch pokhri lake situated in the himalaya mountains is the highest lake in the world.&lt;br /&gt;
&lt;br /&gt;
The himalaya mountain range (asia) is the greatest mountain range in the world.&lt;br /&gt;
&lt;br /&gt;
Mount Everest (2759 N 8656 E) is the highest mountain peak which is located on nepal-tibet border in the himalayas.&lt;br /&gt;
&lt;br /&gt;
New Cornelia tailings on ten mile wash Arizona USA with a volume of 209500 million cubic metres is the world,s largest volume dam.&lt;br /&gt;
&lt;br /&gt;
Petronas tower-I is the tallest building in the world which is located in kuala lumpur (malaysia).&lt;br /&gt;
&lt;br /&gt;
USA is the largest nuclear electric power producing country in the world.It produces 98784 MW electricity which is about 30% of the total nuclear electricity generated in the world.&lt;br /&gt;
&lt;br /&gt;
Dalol Danaki depression in ethiopia with an average annual temperature of 35c (95f) is the hottest place on earth and Plateau station,in antaretica with an average annual temperature of -56.7c (-71.7f), is the coldest place of the globe.&lt;br /&gt;
&lt;br /&gt;
The Atacama desert in chile is the driest place of the world and Masynram in Assam (india) is the wettest place in the world.&lt;br /&gt;
&lt;br /&gt;
Canada has the longest coastline which is 151,489 miles in the length and Monaco`s coastline measures only 3.5 miles in length.&lt;br /&gt;
&lt;br /&gt;
The present palace of sultan of brunei in the capital city of bandar seri begawan consisting of 1788 rooms is the largest palace.&lt;br /&gt;
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Grand central terminal of new york is the largest railway station.it covers an area of 48 acres.&lt;br /&gt;
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The seikan railway tunnel in japan is the longest railway tonned in the world,it s length is 33.50 miles (53.9 km)&lt;br /&gt;
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the yellow stone national park (USA) is the largest national park.It has an area of 3350 sq miles.&lt;br /&gt;
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The california university (USA) is the biggest university of the world..&lt;br /&gt;
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King khalid international airport,riyadh (saudi arabia) is the largest airport in the world.&lt;br /&gt;
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The port of new york and new jersey (USA) is the largest seaport in the world.&lt;br /&gt;
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Mandarain (chinese) is the most spoken language of the world.It is estimated that a total number of 999 million ppl speak it.&lt;br /&gt;
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The nobel prize is the largest prize.Each prize carries an amount of one million dollars.&lt;br /&gt;
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Shah faisal mosque located in islamabad (pak) is the largest mosque&lt;br /&gt;
* The asian development bank established in 1966 with headquarter located at MANILA (philipines).&lt;br /&gt;
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* Eqypt , Iraq , jorden , Lebanon , Saudi Arab , Syria and Yemen are the founder nations of the arab league.&lt;br /&gt;
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* First world war was began on 1914 A.D. and second world war started in 1939 when germany attacked on poland, it is also considered as Greatest war.&lt;br /&gt;
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* Columbus discovered america on 1492 A.D.&lt;br /&gt;
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* The Royal Majesty ship Queen Elizabeth (UK) is the largest pessenger ship in the world.It is 314 metres long and 36 metres wide.&lt;br /&gt;
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* The cambodian language is a language which has a total number of 74 alphabets.&lt;br /&gt;
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* The Sumerian civilization is considered to be the oldest civilization of the world.&lt;br /&gt;
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* Jericho,situated in the Jorden valley is the oldest town of the world.&lt;br /&gt;
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* The maximum ever temperature of 136.4 F was recorded on september 13,1922 in the city Azizia (Libya) and The minimum temperature of -129.6 F was recorded in the town of Vostok near Antarctica on 24th august , 1960.&lt;br /&gt;
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* The highest rainfall for one month was recorded at Indian town of Cherapoonje. 366,14 inches rain fell there during the month of july 1861.&lt;br /&gt;
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* Robert E. Peary (1856-1920) an American explorer reached North Pole on 6th April,1909 for the first time in human history.&lt;br /&gt;
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* Sierra Leone has the lowest GDP per capita of 510 US dollars and Luxembourg has the highest GDP per capita of 36,400 US dollars.&lt;br /&gt;
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* The UNO originated during the second world war.Its charter was drawn up from 25th april to 26th june,1945 at San francisco which was signed by 51 countries.&lt;br /&gt;
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* The umayyad Dynasty (661-750 A.D) was the first muslim dynasty.&lt;br /&gt;
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* Light is the fastest thing in the universe.It travels at a phenomenal speed of 187,000 miles per second.&lt;br /&gt;
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* According to the Forbcs magazine, There were 311 individual billionaires in the world.out of these, 108 belonged to USA,44 belonged to germany and 34 were japanese.&lt;br /&gt;
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Biological sciences&lt;br /&gt;
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* For growth,viruses requires "Living Host".&lt;br /&gt;
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* The deficiency of "Boron" micronutrients causes the death of the stem and root apices.&lt;br /&gt;
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* Plant development is influenced by Quality,Quantity and Duration of light.&lt;br /&gt;
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* Lettuce,wheat and spinach are the long day plants and Sugarcane, Soyabean and tobacco are short day plants.&lt;br /&gt;
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* ATP is a molecule containing high energy bonds.&lt;br /&gt;
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* Edible part of tomato is whole fruit.&lt;br /&gt;
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* The primary producers of organic matter in nature are Green plants.&lt;br /&gt;
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* The total weight of a cell in a leaf or a petal,water constitutes about 90%.&lt;br /&gt;
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* The primary plant body consist of 3 tissue systems.&lt;br /&gt;
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* A tissue is a group of cells having similar structure and function.&lt;br /&gt;
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* The edible portion of mango is Mesocarp.&lt;br /&gt;
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* The rice grain is a seed.&lt;br /&gt;
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* Ethylene is a hormone concerned with Ripening of fruits.&lt;br /&gt;
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* Bamboo is Grass.&lt;br /&gt;
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* Cork cells are impervious to water because of the presence of Suberin.&lt;br /&gt;
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* The biotic relationship between insects and plants with reference to pollination is called Mutualism.&lt;br /&gt;
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* Historically, Joseph Priertley , recognized in 1727 A.D. that sunlight and air are important for the growth of plants.&lt;br /&gt;
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* Opium is obtained from seed capsule of opium poppy.&lt;br /&gt;
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* Carbon dioxide is required during photosynthesis process in addition to sunlight and water.&lt;br /&gt;
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* The cavity of Ascaris is known as Coelom.&lt;br /&gt;
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* The membranous labyrinth of the ear is filled with Endolymph.&lt;br /&gt;
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* Crura-cerebri is found in Mid-brain.&lt;br /&gt;
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* Man is Homoiothermic.&lt;br /&gt;
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* The compound eye of insect produces Mosaic vision.&lt;br /&gt;
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* The post embryoniv stages in the life history of cockroach is known as Nymphs.&lt;br /&gt;
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* Ptyalin is present in the saliva.&lt;br /&gt;
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* Central nervous system control the reflex action in the body.&lt;br /&gt;
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* The terminal part of vertebral column in man is called Coceyx.&lt;br /&gt;
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* Beingn tertain malaria is caused by plasmodium vivax.&lt;br /&gt;
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* The life history of human malarial parasite in Anopheles was first described by Sir Ronald Ross.&lt;br /&gt;
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* The mouth parts of anopheles are adapted to piercing and sucking type feeding.&lt;br /&gt;
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* The "Urinary system" of the body consists of 3 organs.&lt;br /&gt;
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* Haryersion canals are present in Bone.&lt;br /&gt;
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* The heart bear is initiated and regulated by nodal tissue made of specialized cardiac muscles called Purkinje tusse.&lt;br /&gt;
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* The gestation period of human being is Nine months.&lt;br /&gt;
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* Amoebic dysentery in man is caused by Entamoeba histolytica.&lt;br /&gt;
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* The first heart sound is produced when Diastole begins.&lt;br /&gt;
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* Kari Landsteiner discovered the blood groups of man.&lt;br /&gt;
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* Prothrombin which helps in clotting of blood is released by Blood platelets.&lt;br /&gt;
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* Glycogen is mainly stored in Liver and muscles.&lt;br /&gt;
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* Pepsin converts protein into peptides in acid media.&lt;br /&gt;
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* The most important function of perspiration is to regulate the body temperature.&lt;br /&gt;
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* The main function of white blood cells in the body is to protect the body against diseases.&lt;br /&gt;
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* The number of chromosomes in the human body is 46.&lt;br /&gt;
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* One micron is equal to One-thousandth of a millimeter.&lt;br /&gt;
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* Solar eclipse occurs at the new moon and not on the full moon and atleast one &amp;amp; seven is maximum no of solar eclipse in a year &lt;br /&gt;
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* The highest earth quake severity on richter scale has been recorded at southern chile in 1960 which was 9.5.&lt;br /&gt;
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* Hally's comet will return in the year 2062.&lt;br /&gt;
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* The speed of light is nearly 300,000 km/sec.&lt;br /&gt;
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* Our solar system has about 50 satellites.&lt;br /&gt;
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* Blue colour has shortest wavelength.&lt;br /&gt;
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* Bacteria ,fungi,virus are Non-green plants.&lt;br /&gt;
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* LASER stands for "light amplification by stimulated emission of radiation".&lt;br /&gt;
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* Brazil covers nearly half of south america &lt;br /&gt;
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* The constitution of 1973 was enforced on 14th aug,1973.It is comprises of twelve parts consisting of 280 articles.&lt;br /&gt;
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* Mian nawaz sharif inaugurated Lahore-islamabad Motorway (M-2) on 26th nov 1997 which is 339 km long and 33 metre wide.&lt;br /&gt;
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* Mrs.Benazir bhutto reserved as prime miniter of pakistan twice viz.from 2 december 1988 to 6 aug 1990 and from 19th oct 1993 to 5th nov 1996.&lt;br /&gt;
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* WAPDA (water and power development authority) is responsible for the generation and distribution of electricity.&lt;br /&gt;
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* Indus water treaty was signed by india and pakistan in 1960 to resolve the outstanding canal water dispute bw 2 countries.&lt;br /&gt;
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* The govt of pakistan convened a convention of Ulema from 21-24th jan 1951 at karachi. The convention was attended by 31 muslim religious scholars belonging to all sects of Islam.The Ulema agreed on 22 points.&lt;br /&gt;
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* The miracle of a pregnant female camel was sent to the nation of samood.&lt;br /&gt;
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* The soap was made by Hazrat Salih (AS) first of all.&lt;br /&gt;
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* The nation of Hazrat Loot (AS) was destroyed by a rain of stones.&lt;br /&gt;
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* In six days (Surah Yunus,Verse no three) Allah had created the earth and the heaven.&lt;br /&gt;
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* 22 times along with namaz ,Zakat has been mentioned in the Holy Quran.&lt;br /&gt;
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* Hajj made compulsory In the year 9 A.H.&lt;br /&gt;
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* Hazrat Hamza (RA)was the first commander of Islamic Army.&lt;br /&gt;
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* There are 114 surahs , 30 Paras and 6236 Ayats in the holy Quran.Surah-e-Fatiha is the first surah and Surah-e-Nas is the last Surah of the holy Quran.&lt;br /&gt;
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* Seven stages are there in the Holy Quran.&lt;br /&gt;
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* A shooting star is a meteor that comes from space,burning out in the earth`s upper atmosphere. &lt;br /&gt;
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* The total number of star visible with the naked eye can not be more than 6000.&lt;br /&gt;
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* Star twinkle for two main reasons, The intensity of the stars decreases and increases because of line-of-sight effect and there are disturbance in the gases of the atmosphere.&lt;br /&gt;
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* One light year is equal to 9461,000 million km ( 5875,000 million miles ).&lt;br /&gt;
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* The earth is about three million miles closer to the sun in january.&lt;br /&gt;
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* An engine which could do work equal to lifting 550 pounds one foot per second,is said to work at rate of one horsepower.&lt;br /&gt;
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* The essential parts of radio are: Vacuum tubes, transistors , Amplifier and Oscillator.&lt;br /&gt;
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* If you look at sky from the moon,It appears completely black because the moon has no atmosphere.&lt;br /&gt;
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* FM stands for Frequency modulation.&lt;br /&gt;
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* THere is no colour of the sky but it is the blue part of the white light of the sun which gets scattered by the dust particles hanging in the atmosphere.&lt;br /&gt;
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* Kilowatt hour (kWh) is a bigger unit of energy used in addition to SI unit.&lt;br /&gt;
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* Mitosis and meiosis are two types of cell division.&lt;br /&gt;
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* Light travels at a speed of 186,000 miles per sec.&lt;br /&gt;
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* The volcanoes of HAWAII are the most common and thoroughly studied in the world&lt;br /&gt;
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* Acre-foot is a unit of volume and is used to measure irrigation water, runoff volume and reservoir capacity.&lt;br /&gt;
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* Heme is Ferrous Protopo&lt;br /&gt;
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* There is about 340 million cubic miles of liquid water on the surface of the earth&lt;br /&gt;
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* Ducts are small tubes which transfer the secretion of glands.&lt;br /&gt;
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* Borneo, sumatra , kenya ,uganda, brazil , colombia and equadore are some countries through which the equator passes.&lt;br /&gt;
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* Computer virus has created from pakistan&lt;br /&gt;
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* The dead sea is the world lowest sea.Its surface is 400 metres below the mediterranean.&lt;br /&gt;
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* MegaWatt is a unit of power equal to 1000 kiloWatts.&lt;br /&gt;
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* There are 15 main tectonic plates which makes the dynamic crust of the earth.&lt;br /&gt;
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* Northern edge of the Atlama desert in Chile is richest with the desposits of copper.&lt;br /&gt;
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* Dry ice is solid carbon dioxide at a temperature of -80 C.&lt;br /&gt;
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* Hydro-electric power means production of electricity by making Dams.&lt;br /&gt;
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* Chronic disease usually begins slowly and persists over a longer time.&lt;br /&gt;
* Pakistan Railway &amp;amp; german Company agreed on a fisiblity report of 750 km line&lt;br /&gt;
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* Pakistan to Manufacture mobile phones from May 2007&lt;br /&gt;
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* Abu Dhabi to Set-up Oil Refinery in Pakistan &lt;br /&gt;
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* Salt production in Pakistan reaches One Mln Tonnes per Year &lt;br /&gt;
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* Pakistan to increase Oil Output upto 100,000 Barrels Per Day&lt;br /&gt;
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* Pakistan GDP in 2006 was estimated approximately $ 439.7 billion&lt;br /&gt;
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* Fiscal budget for revenue and expenditure is targetted $ 19.8 billion and $ 25.7 billion respectively&lt;br /&gt;
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* GDP growth rate is 6.6 %&lt;br /&gt;
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* Population of pakistan is 165,803,560&lt;br /&gt;
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* Population below poverty line is 25%.&lt;br /&gt;
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* Export target for the year is estimated $18 billion and Import target is estimated $28 billion&lt;br /&gt;
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* Privatisation target for the year is 75 billion&lt;br /&gt;
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* $13 billion is reserved amount of pakistan&lt;br /&gt;
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GDP (purchasing power parity): $427.3 billion (2006 est.) &lt;br /&gt;
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GDP (official exchange rate): $124 billion (2006 est.) &lt;br /&gt;
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GDP - real growth rate: 6.5% (2006 est.) &lt;br /&gt;
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GDP - per capita (PPP): $2,600 (2006 est.) &lt;br /&gt;
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GDP - composition by sector: agriculture: 22% &lt;br /&gt;
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industry: 26% &lt;br /&gt;
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services: 52% (2006 est.) &lt;br /&gt;
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Labor force: 48.29 million &lt;br /&gt;
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note: extensive export of labor, mostly to the Middle East, and use of child labor (2006 est.) &lt;br /&gt;
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Labor force - by occupation: agriculture: 42% &lt;br /&gt;
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industry: 20% &lt;br /&gt;
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services: 38% (2004 est.) &lt;br /&gt;
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Unemployment rate: 6.5% plus substantial underemployment (2006 est.) &lt;br /&gt;
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Population below poverty line: 24% (FY05/06 est.) &lt;br /&gt;
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Household income or consumption by percentage share: lowest 10%: 4.1% &lt;br /&gt;
&lt;br /&gt;
highest 10%: 27.6% (FY96/97) &lt;br /&gt;
&lt;br /&gt;
Distribution of family income - Gini index: 41 (FY98/99) &lt;br /&gt;
&lt;br /&gt;
Inflation rate (consumer prices): 7.9% (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Investment (gross fixed): 15.6% of GDP (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Budget: revenues: $20.55 billion &lt;br /&gt;
&lt;br /&gt;
expenditures: $25.65 billion; including capital expenditures of $NA (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Public debt: 55% of GDP (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Agriculture - products: cotton, wheat, rice, sugarcane, fruits, vegetables; milk, beef, mutton, eggs &lt;br /&gt;
&lt;br /&gt;
Industries: textiles and apparel, food processing, pharmaceuticals, construction materials, paper products, fertilizer, shrimp &lt;br /&gt;
&lt;br /&gt;
Industrial production growth rate: 6% (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Electricity - production: 80.24 billion kWh (2004) &lt;br /&gt;
&lt;br /&gt;
Electricity - production by source: fossil fuel: 68.8% &lt;br /&gt;
&lt;br /&gt;
hydro: 28.2% &lt;br /&gt;
&lt;br /&gt;
nuclear: 3% &lt;br /&gt;
&lt;br /&gt;
other: 0% (2001) &lt;br /&gt;
&lt;br /&gt;
Electricity - consumption: 74.62 billion kWh (2004) &lt;br /&gt;
&lt;br /&gt;
Electricity - exports: 0 kWh (2004) &lt;br /&gt;
&lt;br /&gt;
Electricity - imports: 0 kWh (2004) &lt;br /&gt;
&lt;br /&gt;
Oil - production: 63,000 bbl/day (2005 est.) &lt;br /&gt;
&lt;br /&gt;
Oil - consumption: 324,000 bbl/day (2004 est.) &lt;br /&gt;
&lt;br /&gt;
Oil - exports: NA bbl/day (2004) &lt;br /&gt;
&lt;br /&gt;
Oil - imports: NA bbl/day (2004) &lt;br /&gt;
&lt;br /&gt;
Oil - proved reserves: 358.9 million bbl (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Natural gas - production: 27.4 billion cu m (2004 est.) &lt;br /&gt;
&lt;br /&gt;
Natural gas - consumption: 27.4 billion cu m (2004 est.) &lt;br /&gt;
&lt;br /&gt;
Natural gas - exports: 0 cu m (2004 est.) &lt;br /&gt;
&lt;br /&gt;
Natural gas - imports: 0 cu m (2004 est.) &lt;br /&gt;
&lt;br /&gt;
Natural gas - proved reserves: 759.7 billion cu m (1 January 2005 est.) &lt;br /&gt;
&lt;br /&gt;
Current account balance: $-5.486 billion (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Exports: $19.24 billion f.o.b. (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Exports - commodities: textiles (garments, bed linen, cotton cloth, yarn), rice, leather goods, sports goods, chemicals, manufactures, carpets and rugs &lt;br /&gt;
&lt;br /&gt;
Exports - partners: US 24.8%, UAE 7.8%, Afghanistan 6.6%, UK 5.7%, Germany 4.5% (2005) &lt;br /&gt;
&lt;br /&gt;
Imports: $26.79 billion f.o.b. (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Imports - commodities: petroleum, petroleum products, machinery, plastics, transportation equipment, edible oils, paper and paperboard, iron and steel, tea &lt;br /&gt;
&lt;br /&gt;
Imports - partners: Saudi Arabia 11.1%, UAE 10.3%, China 9.2%, Japan 6.4%, US 6%, Kuwait 5%, Germany 4.5% (2005) &lt;br /&gt;
&lt;br /&gt;
Reserves of foreign exchange and gold: $13.29 billion (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Debt - external: $42.38 billion (2006 est.) &lt;br /&gt;
&lt;br /&gt;
Economic aid - recipient: $2.4 billion (FY01/02) &lt;br /&gt;
&lt;br /&gt;
Currency (code): Pakistani rupee (PKR) &lt;br /&gt;
&lt;br /&gt;
Currency code: PKR &lt;br /&gt;
&lt;br /&gt;
Exchange rates: Pakistani rupees per US dollar - 60.5 (2006), 59.515 (2005), 58.258 (2004), 57.752 (2003), 59.724 (2002) &lt;br /&gt;
&lt;br /&gt;
Fiscal year: 1 July - 30 June &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Really inspirational Work...Well done Sureshlasi, let me share a lil from my side too &lt;br /&gt;
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The only fish that can blink with both eyes is a shark.&lt;br /&gt;
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The Niagara falls froze solid as it was so cold in winter of 1932.&lt;br /&gt;
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Tigers don't have striped fur but striped skin. &lt;br /&gt;
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Compared to men, women blink nearly twice. &lt;br /&gt;
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Its not possible to keep your eyes open and sneeze.(Don't try it) ;-)&lt;br /&gt;
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An average American spends 6 months in his whole life at red lights.&lt;br /&gt;
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&lt;br /&gt;
The scissors was invented by Leonardo Da Vinci.&lt;br /&gt;
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When we are born our nose and ears keeps growing but the size of our eyes remains the same. &lt;br /&gt;
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The longest word typed with the left hand is stewardesses and with the right is lollipop. (Don't try others) ;-)&lt;br /&gt;
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&lt;br /&gt;
56% of the average typing work is done with the left hand.&lt;br /&gt;
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In every two weeks if the stomach does not produce a new layer of mucus it will digest itself;-)&lt;br /&gt;
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The words read left to right or right to left in the words racecar kayak and level are the same. &lt;br /&gt;
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When a chocolate bar melted in the pocket after a researcher walked by a radar tube, he invented the microwave. &lt;br /&gt;
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The brain of the Ostrich is smaller than its eyes. &lt;br /&gt;
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Vocal sounds of a dog are 10 and that of a cat are over one hundred. &lt;br /&gt;
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&lt;br /&gt;
&lt;br /&gt;
In each ear of the cat there are 32 muscles. &lt;br /&gt;
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&lt;br /&gt;
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Life span of a dragonfly is 24 hours.&lt;br /&gt;
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&lt;br /&gt;
A snail can sleep for three years. &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
* Bill gates (USA),founder and chairman of microsoft corporation, is currently the richest person in the world and Liliane Bettencourt (france) is the richest woman in the world.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
* People`s republic of china has the largest army of the world.&lt;br /&gt;
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--------------------------------------------------------------------------------&lt;br /&gt;
&lt;br /&gt;
&lt;span style="color: blue;"&gt;&lt;strong&gt;"Strange Mathematical and Scientific Facts" &lt;/strong&gt;&lt;/span&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
1. 10 percent of all human beings ever born are alive at this very moment.&lt;br /&gt;
&lt;br /&gt;
2. 10% of human dry weight comes from bacteria.&lt;br /&gt;
&lt;br /&gt;
3. 11 % of the world is left-handed&lt;br /&gt;
&lt;br /&gt;
4. 111, 111, 111 X 111, 111, 111 = 12,345, 678, 987, 654, 321.&lt;br /&gt;
&lt;br /&gt;
5. 1200 equals 1 pound (72 rupees)&lt;br /&gt;
&lt;br /&gt;
6. 123,000,000 cars are being driven on highways in the United States.&lt;br /&gt;
&lt;br /&gt;
7. 166,875,000,000 pieces of mail are delivered each year in the United States.&lt;br /&gt;
&lt;br /&gt;
8. 1959’s A Raisin in the sun was the first play by a black woman to be produced on Broadway.&lt;br /&gt;
&lt;br /&gt;
9. 2 and 5 are the only prime numbers that end in 2 or 5.&lt;br /&gt;
&lt;br /&gt;
10. 203 million dollars is spent on barbed wire each year in the U.S.&lt;br /&gt;
&lt;br /&gt;
11. 22,000 checks will be deducted from the wrong bank accounts in the next hour.&lt;br /&gt;
&lt;br /&gt;
12. 25 % of a human’s bones are in its feet.&lt;br /&gt;
&lt;br /&gt;
13. 259200 people die everyday.&lt;br /&gt;
&lt;br /&gt;
14. 27% of Americans believe we never landed on the moon.&lt;br /&gt;
&lt;br /&gt;
15. 27% of U.S. male college students believe life is “a meaningless existential hell.”&lt;br /&gt;
&lt;br /&gt;
16. 3% all mammals are monogamous.&lt;br /&gt;
&lt;br /&gt;
17. 315 words in the 1996 Webster’s dictionary were misspelled.&lt;br /&gt;
&lt;br /&gt;
18. 4 tablespoons of ketchup has about the same amount of nutrition as a ripe tomato.&lt;br /&gt;
&lt;br /&gt;
19. 40% of all people who come to a party snoop in your medicine cabinet.&lt;br /&gt;
&lt;br /&gt;
20. 40% of McDonald’s profits come from the sales of Happy Meals.&lt;br /&gt;
&lt;br /&gt;
21. 43.7% of all statistics are made up right on the spot.&lt;br /&gt;
&lt;br /&gt;
22. 48% of astronauts experience motion sickness.&lt;br /&gt;
&lt;br /&gt;
23. 52% of American drinks coffee.&lt;br /&gt;
&lt;br /&gt;
24. 55.1% of all US prisoners are in prison for drug offenses.&lt;br /&gt;
&lt;br /&gt;
25. 56,000,000 people go to Major League baseball games each year.&lt;br /&gt;
&lt;br /&gt;
26. 67 million pounds of pesticides and about 3 million tons of fertilizer are used annually on lawns in the US.&lt;br /&gt;
&lt;br /&gt;
27. 78 rpm albums, used prior to 1948, were only capable of recording for four minutes. It wasn’t until later that year that Columbia Records introduced 33 rpm albums capable of playing 23 minutes per side.&lt;br /&gt;
&lt;br /&gt;
28. 80% of animals on earth are insects.&lt;br /&gt;
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&lt;br /&gt;
&lt;strong&gt;&lt;span style="color: blue; font-size: large;"&gt;Religions of the World. &lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
01 Islam. &lt;br /&gt;
&lt;br /&gt;
Founder: ProphetMohammad PBUH (570-632 AD) born in Mecca &lt;br /&gt;
&lt;br /&gt;
Founded in: 622 AD&lt;br /&gt;
&lt;br /&gt;
Followed in: West coast of Africa which includes Tanzania, Southern part of Russia and China, India, Pakistan, Bangladesh, Malaysia and Indonesia. Also parts of Northern Africa&lt;br /&gt;
&lt;br /&gt;
Sacred texts: Quran (words of God), Hadis (collection of Prophet's sayings)&lt;br /&gt;
&lt;br /&gt;
Sacred places: Makkah (Mecca) in Saudi Arabia&lt;br /&gt;
&lt;br /&gt;
Place of worship:Masjid (mosque)&lt;br /&gt;
&lt;br /&gt;
Important sects:Sunnis and Shias&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
02 Buddhism &lt;br /&gt;
&lt;br /&gt;
Founder: Gautam Siddhartha Buddha (563-483 BC) born in Nepal &lt;br /&gt;
&lt;br /&gt;
Founded in: 525 BC&lt;br /&gt;
&lt;br /&gt;
Followed in: China, Tibet, Korea, Mongolia, Nepal, Bhutan, Thailand, Japan,Laos, Myanmar (Burma), Sri Lanka, Cambodia, Taiwan, Indonesia, Bhutan and Vietnam.&lt;br /&gt;
&lt;br /&gt;
Sacred text: The Tripitaka (Collection of Buddha's teachings) also called Sutras&lt;br /&gt;
&lt;br /&gt;
Sacred places: Lumbini (Nepal) where Buddha was born, Bodh Gaya (Bihar) &lt;br /&gt;
&lt;br /&gt;
where he received Enlightenment and Kusinagara (UP) where he attained. 'Nirvana'.&lt;br /&gt;
&lt;br /&gt;
Place of worship:Vihar (temple) and Monstery (where Monks reside)&lt;br /&gt;
&lt;br /&gt;
Sects: Mahayana and Hinayana&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
03 Confucianism &lt;br /&gt;
&lt;br /&gt;
Founder: Kung Fu Tsu, better known as Confucius (551-479 BC) born in the state of Lu in China.&lt;br /&gt;
&lt;br /&gt;
Founded in: 500 BC&lt;br /&gt;
&lt;br /&gt;
Followed in: China, Taiwan, South Korea, Nauru and Vietnam&lt;br /&gt;
&lt;br /&gt;
Sacred text: The Lun Yu, The Analects&lt;br /&gt;
&lt;br /&gt;
Sacred place: Peking (Beijing) in China&lt;br /&gt;
&lt;br /&gt;
Place of worship:No church or temple&lt;br /&gt;
&lt;br /&gt;
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04 Christianity &lt;br /&gt;
&lt;br /&gt;
Founder: Jesus Christ (5 BC to 30 AD) born in Judea, also called Jesus of Nazareth.&lt;br /&gt;
&lt;br /&gt;
Founded in: 2000 years ago&lt;br /&gt;
&lt;br /&gt;
Followed in: Spread all over the world&lt;br /&gt;
&lt;br /&gt;
Sacred text: Holy Bible consisting of the Old Testament (before Christ) and the New Testament (during and after Christ).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
05 Hinduism &lt;br /&gt;
&lt;br /&gt;
Founder: Not Known&lt;br /&gt;
&lt;br /&gt;
Founded in: 1500 BC&lt;br /&gt;
&lt;br /&gt;
Followed in: Concentrated in India and Nepal and also found in Bhutan, Fiji, Guyana, Indonesia, Mauritius, Sri Lanka, South Africa, Surinam, Trinidad and Tobago, Bali.&lt;br /&gt;
&lt;br /&gt;
Sacred text: The Vedas, the Upanishads, the Bhagavad-Gita and the epics of the Mahabharata and the Ramayana&lt;br /&gt;
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Place of worship:Temple&lt;br /&gt;
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06 Judaism &lt;br /&gt;
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Founder: Moses, born in Egypt&lt;br /&gt;
&lt;br /&gt;
Founded in: 1300 BC&lt;br /&gt;
&lt;br /&gt;
Followed in: Worldwide with concentration in Israel and United States &lt;br /&gt;
&lt;br /&gt;
Hal's, found particularly in the five books of Bible, commentary on Torah known s Talmud and Midrash.&lt;br /&gt;
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Sacred Places: Jerusalem&lt;br /&gt;
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Place of worship:Synagogue&lt;br /&gt;
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07 Shintoism &lt;br /&gt;
&lt;br /&gt;
Founder: Began with Japanese culture and developed out of tradition&lt;br /&gt;
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Founded in: Antiquity&lt;br /&gt;
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Followed in: Japan&lt;br /&gt;
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Sacred texts: No specific text&lt;br /&gt;
&lt;br /&gt;
Sacred Places: Central Shrine of Ise (central Japan) and the Yasukuni Shrine in Tokyo.&lt;br /&gt;
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08 Sikhism &lt;br /&gt;
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Founder: Guru Nanak (1469-1539)&lt;br /&gt;
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Founded in: 1500 AD&lt;br /&gt;
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Followed in: India&lt;br /&gt;
&lt;br /&gt;
Sacred texts: Guru Granth Sahed&lt;br /&gt;
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Sacred Places: The Golden Temple of Amritsar&lt;br /&gt;
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Place of worship: Gurdwara&lt;br /&gt;
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09 Taoism &lt;br /&gt;
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Founder: Lao-tse, a Chinese philosopher&lt;br /&gt;
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Founded in: 6th century BC&lt;br /&gt;
&lt;br /&gt;
Followed in: China, Taiwan, Nauru, Brunei, Singapore and Vietnam&lt;br /&gt;
&lt;br /&gt;
Sacred texts: Tao-te-Ching&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
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10 Zoroastrianism &lt;br /&gt;
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Founder: Zoroaster, Born in Medea (modern Iran) about 660 BC&lt;br /&gt;
&lt;br /&gt;
Founded in: Around 500 BC&lt;br /&gt;
&lt;br /&gt;
Followed in: Iran and north-west India. The Zoroastrians who fled to India during the eight century are the ancestors of the present Parsi Community in India&lt;br /&gt;
&lt;br /&gt;
Sacred texts: Zend vesta&lt;br /&gt;
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Place of worship:Fire temple&lt;br /&gt;
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WORLD RELIGIONS --- IN FIGURES&lt;br /&gt;
&lt;br /&gt;
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&lt;br /&gt;
Religion Percentage of world population&lt;br /&gt;
&lt;br /&gt;
Muslims 22&lt;br /&gt;
&lt;br /&gt;
Christians 32.91&lt;br /&gt;
&lt;br /&gt;
Hindus 14&lt;br /&gt;
&lt;br /&gt;
Sikhs 0.34&lt;br /&gt;
&lt;br /&gt;
Jains 0.07&lt;br /&gt;
&lt;br /&gt;
Buddhists 5.99&lt;br /&gt;
&lt;br /&gt;
Jewish 0.33&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Religion 5.99 Percentage of world population&lt;br /&gt;
&lt;br /&gt;
Non-religious 14&lt;br /&gt;
&lt;br /&gt;
Atheists 4.46&lt;br /&gt;
&lt;br /&gt;
Chinese folk religionists 4&lt;br /&gt;
&lt;br /&gt;
New religionists 2.44&lt;br /&gt;
&lt;br /&gt;
Tribal religionists 1.75&lt;br /&gt;
&lt;br /&gt;
Shintoists 0.06&lt;br /&gt;
&lt;br /&gt;
Shamanists 0.21&lt;br /&gt;
&lt;br /&gt;
Bahais 0.09&lt;br /&gt;
&lt;br /&gt;
Confucionists 0.11&lt;br /&gt;
&lt;br /&gt;
Other religions 0.22 &lt;br /&gt;
------------------------------------------------------------------------------- &lt;br /&gt;
01 The first Prime minister of Bangladesh was Mujibur Rehman &lt;br /&gt;
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02 The longest river in the world is the Nile&lt;br /&gt;
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03 The longest highway in the world is the Trans-Canada&lt;br /&gt;
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04 The longest highway in the world has a length of About 8000 km&lt;br /&gt;
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05 The highest mountain in the world is the Everest&lt;br /&gt;
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06 The country that accounts for nearly one third of the total teak production of the world is Myanmar&lt;br /&gt;
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07 The biggest desert in the world is the Sahara desert&lt;br /&gt;
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08 The largest coffee growing country in the world is Brazil&lt;br /&gt;
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09 The country also known as "country of Copper" is Zambia&lt;br /&gt;
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10 The name given to the border which separates Pakistan and Afghanistan is Durand line&lt;br /&gt;
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11 The river Volga flows out into the Caspian sea&lt;br /&gt;
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Question : Who was the favourite daughter of Shakespeare's King Lear? &lt;br /&gt;
&lt;br /&gt;
Answer : Cordelia &lt;br /&gt;
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Question : Which is the brightest star? &lt;br /&gt;
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Answer: Sirius &lt;br /&gt;
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Question : Which star has collapsed into itself? Answer : Black Hole &lt;br /&gt;
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Question : Which is the heaviest star? &lt;br /&gt;
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Answer : HDE 269810 IN Magellanic Cloud &lt;br /&gt;
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Question : Which Australian city includes the suburbs of Cottesloe and Subiaco? Answer : Perth &lt;br /&gt;
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Question : Who discovered Oxygen in 1774? &lt;br /&gt;
&lt;br /&gt;
Answer : Joseph Priestly &lt;br /&gt;
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Question : Name the author of A Town Like Alice &lt;br /&gt;
&lt;br /&gt;
Answer : Nevil Shute &lt;br /&gt;
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&lt;br /&gt;
Question : How many Earth years does it take Pluto to orbit the sun? &lt;br /&gt;
&lt;br /&gt;
Answer : 248 &lt;br /&gt;
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Question : What name is given to the central part of a fleshy fruit, containing the seeds? &lt;br /&gt;
&lt;br /&gt;
Answer : The core &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question: What letter appears to the right of Y on a keyboard? &lt;br /&gt;
&lt;br /&gt;
Answer : U &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : What is it that makes soda water fizz? &lt;br /&gt;
&lt;br /&gt;
Answer : Carbon Dioxide &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : What disease is the Sabin Vaccine used to prevent? &lt;br /&gt;
&lt;br /&gt;
Answer : Polio &lt;br /&gt;
&lt;br /&gt;
__________________&lt;br /&gt;
&lt;br /&gt;
01 The first Prime minister of Bangladesh was Mujibur Rehman &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
02 The longest river in the world is the Nile&lt;br /&gt;
&lt;br /&gt;
03 The longest highway in the world is the Trans-Canada&lt;br /&gt;
&lt;br /&gt;
04 The longest highway in the world has a length of About 8000 km&lt;br /&gt;
&lt;br /&gt;
05 The highest mountain in the world is the Everest&lt;br /&gt;
&lt;br /&gt;
06 The country that accounts for nearly one third of the total teak production of the world is Myanmar&lt;br /&gt;
&lt;br /&gt;
07 The biggest desert in the world is the Sahara desert&lt;br /&gt;
&lt;br /&gt;
08 The largest coffee growing country in the world is Brazil&lt;br /&gt;
&lt;br /&gt;
09 The country also known as "country of Copper" is Zambia&lt;br /&gt;
&lt;br /&gt;
10 The name given to the border which separates Pakistan and Afghanistan is Durand line&lt;br /&gt;
&lt;br /&gt;
11 The river Volga flows out into the Caspian sea&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Who was the favourite daughter of Shakespeare's King Lear? &lt;br /&gt;
&lt;br /&gt;
Answer : Cordelia &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Which is the brightest star? &lt;br /&gt;
&lt;br /&gt;
Answer: Sirius &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Which star has collapsed into itself? Answer : Black Hole &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Which is the heaviest star? &lt;br /&gt;
&lt;br /&gt;
Answer : HDE 269810 IN Magellanic Cloud &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Which Australian city includes the suburbs of Cottesloe and Subiaco? Answer : Perth &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Who discovered Oxygen in 1774? &lt;br /&gt;
&lt;br /&gt;
Answer : Joseph Priestly &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Name the author of A Town Like Alice &lt;br /&gt;
&lt;br /&gt;
Answer : Nevil Shute &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : How many Earth years does it take Pluto to orbit the sun? &lt;br /&gt;
&lt;br /&gt;
Answer : 248 &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : What name is given to the central part of a fleshy fruit, containing the seeds? &lt;br /&gt;
&lt;br /&gt;
Answer : The core &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question: What letter appears to the right of Y on a keyboard? &lt;br /&gt;
&lt;br /&gt;
Answer : U &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : What is it that makes soda water fizz? &lt;br /&gt;
&lt;br /&gt;
Answer : Carbon Dioxide &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : What disease is the Sabin Vaccine used to prevent? &lt;br /&gt;
&lt;br /&gt;
Answer : Polio &lt;br /&gt;
&lt;br /&gt;
__________________&lt;br /&gt;
&lt;br /&gt;
01 The first Prime minister of Bangladesh was Mujibur Rehman &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
02 The longest river in the world is the Nile&lt;br /&gt;
&lt;br /&gt;
03 The longest highway in the world is the Trans-Canada&lt;br /&gt;
&lt;br /&gt;
04 The longest highway in the world has a length of About 8000 km&lt;br /&gt;
&lt;br /&gt;
05 The highest mountain in the world is the Everest&lt;br /&gt;
&lt;br /&gt;
06 The country that accounts for nearly one third of the total teak production of the world is Myanmar&lt;br /&gt;
&lt;br /&gt;
07 The biggest desert in the world is the Sahara desert&lt;br /&gt;
&lt;br /&gt;
08 The largest coffee growing country in the world is Brazil&lt;br /&gt;
&lt;br /&gt;
09 The country also known as "country of Copper" is Zambia&lt;br /&gt;
&lt;br /&gt;
10 The name given to the border which separates Pakistan and Afghanistan is Durand line&lt;br /&gt;
&lt;br /&gt;
11 The river Volga flows out into the Caspian sea&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Who was the favourite daughter of Shakespeare's King Lear? &lt;br /&gt;
&lt;br /&gt;
Answer : Cordelia &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Which is the brightest star? &lt;br /&gt;
&lt;br /&gt;
Answer: Sirius &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Which star has collapsed into itself? Answer : Black Hole &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Which is the heaviest star? &lt;br /&gt;
&lt;br /&gt;
Answer : HDE 269810 IN Magellanic Cloud &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Which Australian city includes the suburbs of Cottesloe and Subiaco? Answer : Perth &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Who discovered Oxygen in 1774? &lt;br /&gt;
&lt;br /&gt;
Answer : Joseph Priestly &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : Name the author of A Town Like Alice &lt;br /&gt;
&lt;br /&gt;
Answer : Nevil Shute &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : How many Earth years does it take Pluto to orbit the sun? &lt;br /&gt;
&lt;br /&gt;
Answer : 248 &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : What name is given to the central part of a fleshy fruit, containing the seeds? &lt;br /&gt;
&lt;br /&gt;
Answer : The core &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question: What letter appears to the right of Y on a keyboard? &lt;br /&gt;
&lt;br /&gt;
Answer : U &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : What is it that makes soda water fizz? &lt;br /&gt;
&lt;br /&gt;
Answer : Carbon Dioxide &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Question : What disease is the Sabin Vaccine used to prevent? &lt;br /&gt;
&lt;br /&gt;
Answer : Polio &lt;br /&gt;
&lt;br /&gt;
__________________&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;&lt;strong&gt;&lt;span style="color: blue; font-size: x-large;"&gt; World&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;strong&gt;Geography:&lt;/strong&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The surface of the earth is approximately 70.9% water and 29.1% land. The former portion is divided into large water bodies termed oceans (the Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean, and Arctic Ocean).&lt;br /&gt;
&lt;br /&gt;
The land portion is generally divided into several, large, discrete landmasses termed continents. Depending on the convention used, the number of continents can vary from five to seven. The most common classification recognizes seven, which are (from largest to smallest): Asia, Africa, North America, South America, Antarctica, Europe, and Australia. Asia and Europe are sometimes lumped together into a Eurasian continent resulting in six continents. Alternatively, North and South America are sometimes grouped as simply the Americas, resulting in a continent total of six (or five, if the Eurasia designation is used).&lt;br /&gt;
&lt;br /&gt;
North America is commonly understood to include the island of Greenland, the isles of the Caribbean, and to extend south all the way to the Isthmus of Panama. The easternmost extent of Europe is generally defined as being the Ural Mountains and the Ural River; on the southeast the Caspian Sea; and on the south the Caucasus Mountains, the Black Sea, and the Mediterranean. Africa's northeast extremity is frequently delimited at the Isthmus of Suez, but for geopolitical purposes, the Egyptian Sinai Peninsula is often included as part Africa. Asia usually incorporates all the islands of the Philippines, Malaysia, and Indonesia. The islands of the Pacific are often lumped with Australia into a "land mass" termed Oceania or Australasia.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Area:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Total: 510.072 million sq km&lt;br /&gt;
&lt;br /&gt;
Land: 148.94 million sq km&lt;br /&gt;
&lt;br /&gt;
Water: 361.132 million sq km&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Area - comparative:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Land area about 16 times the size of the US.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Land boundaries:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The land boundaries in the world total 251,060 km (not counting shared boundaries twice); two nations, China and Russia, each border 14 other countries.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
45 nations and other areas are landlocked, these include: Afghanistan, Andorra, Armenia, Austria, Azerbaijan, Belarus, Bhutan, Bolivia, Botswana, Burkina Faso, Burundi, Central African Republic, Chad, Czech Republic, Ethiopia, Holy See (Vatican City), Hungary, Kazakhstan, Kosovo, Kyrgyzstan, Laos, Lesotho, Liechtenstein, Luxembourg, Macedonia, Malawi, Mali, Moldova, Mongolia, Nepal, Niger, Paraguay, Rwanda, San Marino, Serbia, Slovakia, Swaziland, Switzerland, Tajikistan, Turkmenistan, Uganda, Uzbekistan, West Bank, Zambia, Zimbabwe; two of these, Liechtenstein and Uzbekistan, are doubly landlocked.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Coastline:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
(The total length of the boundary between the land area (including islands) and the sea.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
356,000 km.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
94 nations and other entities are islands that border no other countries, they include: American Samoa, Anguilla, Antigua and Barbuda, Aruba, Ashmore and Cartier Islands, The Bahamas, Bahrain, Baker Island, Barbados, Bermuda, Bouvet Island, British Indian Ocean Territory, British Virgin Islands, Cape Verde, Cayman Islands, Christmas Island, Clipperton Island, Cocos (Keeling) Islands, Comoros, Cook Islands, Coral Sea Islands, Cuba, Cyprus, Dominica, Falkland Islands (Islas Malvinas), Faroe Islands, Fiji, French Polynesia, French Southern and Antarctic Lands, Greenland, Grenada, Guam, Guernsey, Heard Island and McDonald Islands, Howland Island, Iceland, Isle of Man, Jamaica, Jan Mayen, Japan, Jarvis Island, Jersey, Johnston Atoll, Kingman Reef, Kiribati, Madagascar, Maldives, Malta, Marshall Islands, Martinique, Mauritius, Mayotte, Federated States of Micronesia, Midway Islands, Montserrat, Nauru, Navassa Island, New Caledonia, New Zealand, Niue, Norfolk Island, Northern Mariana Islands, Palau, Palmyra Atoll, Paracel Islands, Philippines, Pitcairn Islands, Puerto Rico, Reunion, Saint Barthelemy, Saint Helena, Saint Kitts and Nevis, Saint Lucia, Saint Pierre and Miquelon, Saint Vincent and the Grenadines, Samoa, Sao Tome and Principe, Seychelles, Singapore, Solomon Islands, South Georgia and the South Sandwich Islands, Spratly Islands, Sri Lanka, Svalbard, Tokelau, Tonga, Trinidad and Tobago, Turks and Caicos Islands, Tuvalu, Vanuatu, Virgin Islands, Wake Island, Wallis and Futuna, Taiwan.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Climate:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
A wide equatorial band of hot and humid tropical climates - bordered north and south by subtropical temperate zones - that separate two large areas of cold and dry polar climates.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Terrain:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The greatest ocean depth is the Mariana Trench at 10,924 m in the Pacific Ocean.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Elevation extremes:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Lowest point: Bentley Sub glacial Trench -2,540 m&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Highest point: Mount Everest 8,850 m.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Natural resources:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The rapid depletion of nonrenewable mineral resources, the depletion of forest areas and wetlands, the extinction of animal and plant species, and the deterioration in air and water quality (especially in Eastern Europe, the former USSR, and China) pose serious long-term problems that governments and peoples are only beginning to address.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Natural hazards:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Large areas subject to severe weather (tropical cyclones), natural disasters (earthquakes, landslides, tsunamis, volcanic eruptions).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Environment - current issues:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Large areas subject to overpopulation, industrial disasters, pollution (air, water, acid rain, toxic substances), loss of vegetation (overgrazing, deforestation, desertification), loss of wildlife, soil degradation, soil depletion, erosion; global warming becoming a greater concern.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Geography - note:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The world is now thought to be about 4.55 billion years old, just about one-third of the 13.7-billion-year age estimated for the universe.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
People&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Population:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
6,677,563,921 (July 2008 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Age structure:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
0-14 years: 27% (male 933,716,943/female 877,734,429)&lt;br /&gt;
&lt;br /&gt;
15-64 years: 65% (male 2,205,342,972/female 2,153,959,605)&lt;br /&gt;
&lt;br /&gt;
65 years and over: 8% (male 222,346,221/female 284,463,751) (2008 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Median age:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
(This is the age that divides a population into two numerically equal groups; that is, half the people are younger than this age and half are older).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Male: 27.4 years&lt;br /&gt;
&lt;br /&gt;
Female: 28.7 years (2008 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Population growth rate:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
1.159% (2008 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Birth rate:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
19.97 births/1,000 population (2008 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Death rate:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
8.32 deaths/1,000 population (2008 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Sex ratio:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
At birth: 1.07 male(s)/female&lt;br /&gt;
&lt;br /&gt;
Under 15 years: 1.06 male(s)/female&lt;br /&gt;
&lt;br /&gt;
15-64 years: 1.02 male(s)/female&lt;br /&gt;
&lt;br /&gt;
65 years and over: 0.78 male(s)/female&lt;br /&gt;
&lt;br /&gt;
Total population: 1.01 male(s)/female (2008 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Infant mortality rate:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
(The number of deaths of infants under one year old in a given year per 1,000 live births in the same year; included is the total death rate, and deaths by sex, male and female). &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Total: 42.64 deaths/1,000 live births&lt;br /&gt;
&lt;br /&gt;
Male: 45.42 deaths/1,000 live births&lt;br /&gt;
&lt;br /&gt;
Female: 39.67 deaths/1,000 live births (2008 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Life expectancy at birth:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
(The average number of years to be lived by a group of people born in the same year, if mortality at each age remains constant in the future).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Total population: 66.12 years&lt;br /&gt;
&lt;br /&gt;
Male: 64.18 years&lt;br /&gt;
&lt;br /&gt;
Female: 68.2 years (2008 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Religions:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Christians 33.32% (of which Roman Catholics 16.99%, Protestants 5.78%, Orthodox 3.53%, Anglicans 1.25%), Muslims 21.01%, Hindus 13.26%, Buddhists 5.84%, Sikhs 0.35%, Jews 0.23%, Baha'is 0.12%, other religions 11.78%, non-religious 11.77%, atheists 2.32% (2007 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Languages:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Mandarin Chinese 13.22%, Spanish 4.88%, English 4.68%, Arabic 3.12%, Hindi 2.74%, Portuguese 2.69%, Bengali 2.59%, Russian 2.2%, Japanese 1.85%, Standard German 1.44%, Wu Chinese 1.17% (2005 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Literacy:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Age 15 and over can read and write&lt;br /&gt;
&lt;br /&gt;
Total population: 82%&lt;br /&gt;
&lt;br /&gt;
Male: 87%&lt;br /&gt;
&lt;br /&gt;
Female: 77%&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Over two-thirds of the world's 785 million illiterate adults are found in only eight countries (India, China, Bangladesh, Pakistan, Nigeria, Ethiopia, Indonesia, and Egypt); of all the illiterate adults in the world, two-thirds are women; extremely low literacy rates are concentrated in three regions, South and West Asia, Sub-Saharan Africa, and the Arab states, where around one-third of the men and half of all women are illiterate (2005 est.)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Communications &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Telephones - main lines in use:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
1,263,367,600 (2005)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Telephones - mobile cellular:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
2,168,433,600 (2005)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Internet users:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
1,018,057,389 (2005)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Transportation&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Airports:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Total airports - 49,024&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Top ten by passengers: &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
*Atlanta - 84,846,639 &lt;br /&gt;
&lt;br /&gt;
*Chicago - 77,028,134 &lt;br /&gt;
&lt;br /&gt;
*London - 67,530,197 &lt;br /&gt;
&lt;br /&gt;
*Tokyo - 65,810,672 &lt;br /&gt;
&lt;br /&gt;
*Los Angeles - 61,041,066 &lt;br /&gt;
&lt;br /&gt;
*Dallas/Fort Worth - 60,226,138 &lt;br /&gt;
&lt;br /&gt;
*Paris - 56,849,567 &lt;br /&gt;
&lt;br /&gt;
*Frankfurt - 52,810,683 &lt;br /&gt;
&lt;br /&gt;
*Beijing - 48,654,770 &lt;br /&gt;
&lt;br /&gt;
*Denver - 47,325,016&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Top ten by cargo (metric tons): &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
*Memphis - 3,692,081 &lt;br /&gt;
&lt;br /&gt;
*Hong Kong - 3,609,780 &lt;br /&gt;
&lt;br /&gt;
*Anchorage - 2,691,395 &lt;br /&gt;
&lt;br /&gt;
*Seoul - 2,336,572 &lt;br /&gt;
&lt;br /&gt;
*Tokyo - 2,280,830 &lt;br /&gt;
&lt;br /&gt;
*Shanghai - 2,168,122 &lt;br /&gt;
&lt;br /&gt;
*Paris - 2,130,724 &lt;br /&gt;
&lt;br /&gt;
*Frankfurt - 2,127,646 &lt;br /&gt;
&lt;br /&gt;
*Louisville (US) - 1,983,032 &lt;br /&gt;
&lt;br /&gt;
*Singapore - 1,931,881 (2006)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Heliports:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
1,359 (2007)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Railways:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
1,370,782 km (2006)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Roadways:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Total: 32,345,165 km&lt;br /&gt;
&lt;br /&gt;
Paved: 19,403,061 km&lt;br /&gt;
&lt;br /&gt;
Unpaved: 12,942,104 km (2002)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Waterways:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
671,886 km (2004)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Ports and terminals:&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Top ten container ports (TEUs): &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
*Singapore - 24,792,400 &lt;br /&gt;
&lt;br /&gt;
*Hong Kong - 23,539,000 &lt;br /&gt;
&lt;br /&gt;
*Shanghai - 21,710,000 &lt;br /&gt;
&lt;br /&gt;
*Shenzhen (China) - 18,468,890 &lt;br /&gt;
&lt;br /&gt;
*Busan (South Korea) - 12,030,000 &lt;br /&gt;
&lt;br /&gt;
*Kaohsiung (Taiwan) - 9,774,670 &lt;br /&gt;
&lt;br /&gt;
*Rotterdam - 9,603,000 &lt;br /&gt;
&lt;br /&gt;
*Dubai (UAE) - 8,923,465 &lt;br /&gt;
&lt;br /&gt;
*Hamburg - 8,861,545 &lt;br /&gt;
&lt;br /&gt;
*Los Angeles - 8,469,853 (2006)&amp;nbsp; &lt;br /&gt;
&amp;nbsp; -------------------------------------------------------------------&lt;br /&gt;
&amp;nbsp; &lt;br /&gt;
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&lt;strong&gt;&lt;span style="color: blue; font-size: x-large;"&gt;Rocket&lt;/span&gt;&lt;/strong&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
A rocket is a type of engine that pushes itself forward or upward by producing thrust. Unlike a jet engine, which draws in outside air, a rocket engine uses only the substances carried within it. As a result, a rocket can operate in outer space, where there is almost no air. A rocket can produce more power for its size than any other kind of engine. For example, the main rocket engine of the space shuttle weighs only a fraction as much as a train engine, but it would take 39 train engines to produce the same amount of power. The word rocket can also mean a vehicle or object driven by a rocket engine.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Rockets come in a variety of sizes. Some rockets that shoot fireworks into the sky measure less than 2 feet (60 centimeters) long. Rockets 50 to 100 feet (15 to 30 meters) long serve as long-range missiles that can be used to bomb distant targets during wartime. Larger and more powerful rockets lift spacecraft, artificial satellites, and scientific probes into space. For example, the Saturn 5 rocket that carried astronauts to the moon stood about 363 feet (111 meters) tall.&lt;br /&gt;
&lt;br /&gt;
Rocket engines generate thrust by expelling gas. Most rockets produce thrust by burning a mixture of fuel and an oxidizer, a substance that enables the fuel to burn without drawing in outside air. This kind of rocket is called a chemical rocket because burning fuel is a chemical reaction. The fuel and oxidizer are called the propellants.&lt;br /&gt;
&lt;br /&gt;
A chemical rocket can produce great power, but it burns propellants rapidly. As a result, it needs a large amount of propellants to work for even a short time. The Saturn 5 rocket burned more than 560,000 gallons (2,120,000 liters) of propellants during the first 2 3/4 minutes of flight. Chemical rocket engines become extremely hot as the propellants burn. The temperature in some engines reaches o 6000 degrees F (3300 degrees C), much higher than the temperature at which steel melts.&lt;br /&gt;
&lt;br /&gt;
Jet engines also burn fuel to generate thrust. Unlike rocket engines, however, jet engines work by drawing in oxygen from the surrounding air. For more information on jet engines, see Jet propulsion.&lt;br /&gt;
&lt;br /&gt;
Researchers have also developed rockets that do not burn propellants. Nuclear rockets use heat generated by a nuclear fuel to produce thrust. In an electric rocket, electric energy produces thrust.&lt;br /&gt;
&lt;br /&gt;
Military forces have used rockets in war for hundreds of years. In the 1200's, Chinese soldiers fired rockets against attacking armies. British troops used rockets to attack Fort McHenry in Maryland during the War of 1812 (1812-1815). After watching the battle, the American lawyer Francis Scott Key described "the rocket's red glare" in the song "The Star-Spangled Banner." During World War I (1914-1918), the French used rockets to shoot down enemy observation balloons. Germany attacked London with V-2 rockets during World War II (1939-1945). In the Persian Gulf War of 1991 and the Iraq War, which began in 2003, United States troops launched rocket-powered Patriot missiles to intercept and destroy Iraqi missiles.&lt;br /&gt;
&lt;br /&gt;
Rockets are the only vehicles powerful enough to carry people and equipment into space. Since 1957, rockets have lifted hundreds of artificial satellites into orbit around Earth. These satellites take pictures of Earth's weather, gather information for scientific study, and transmit communications around the world. Rockets also carry scientific instruments far into space to explore and study other planets. Since 1961, rockets have launched spacecraft carrying astronauts and cosmonauts into orbit around Earth. In 1969, rockets carried astronauts to the first landing on the moon. In 1981, rockets lifted the first space shuttle into Earth orbit.&lt;br /&gt;
&lt;br /&gt;
This article discusses Rocket (How rockets work) (How rockets are used) (Kinds of rocket engines) (History).&lt;br /&gt;
&lt;br /&gt;
How rockets work&lt;br /&gt;
&lt;br /&gt;
Rocket engines generate thrust by putting a gas under pressure. The pressure forces the gas out the end of the rocket. The gas escaping the rocket is called exhaust. As it escapes, the exhaust produces thrust according to the laws of motion developed by the English scientist Isaac Newton. Newton's third law of motion states that for every action, there is an equal and opposite reaction. Thus, as the rocket pushes the exhaust backward, the exhaust pushes the rocket forward.&lt;br /&gt;
&lt;br /&gt;
The amount of thrust produced by a rocket depends on the momentum of the exhaust -- that is, its total amount of motion. The exhaust's momentum equals its mass (amount of matter) multiplied by the speed at which it exits the rocket. The more momentum the exhaust has, the more thrust the rocket produces. Engineers can therefore increase a rocket's thrust by increasing the mass of exhaust it produces. Alternately, they can increase the thrust by increasing the speed at which the exhaust leaves the rocket.&lt;br /&gt;
&lt;br /&gt;
Parts of a rocket include the rocket engine and the equipment and cargo the rocket carries. The four major parts of a rocket are (1) the payload, (2) propellants, (3) the chamber, and (4) the nozzle.&lt;br /&gt;
&lt;br /&gt;
The payload of a rocket includes the cargo, passengers, and equipment the rocket carries. The payload may consist of a spacecraft, scientific instruments, or even explosives. The space shuttle's payload, for example, is the shuttle orbiter and the mission astronauts and any satellites, scientific experiments, or supplies the orbiter carries. The payload of a missile may include explosives or other weapons. This kind of payload is called a warhead.&lt;br /&gt;
&lt;br /&gt;
Propellants generally make up most of the weight of a rocket. For example, the fuel and oxidizer used by the space shuttle account for nearly 90 percent of its weight at liftoff. The shuttle needs such a large amount of propellant to overcome Earth's gravity and the resistance of the atmosphere.&lt;br /&gt;
&lt;br /&gt;
The space shuttle and many other chemical rockets use liquid hydrogen as fuel. Hydrogen becomes a liquid only at extremely low temperatures, requiring powerful cooling systems. Kerosene, another liquid fuel, is easier to store because it remains liquid at room temperature.&lt;br /&gt;
&lt;br /&gt;
Many rockets, including the space shuttle, use liquid oxygen, or lox, as their oxidizer. Like hydrogen, oxygen must be cooled to low temperatures to become a liquid. Other commonly used oxidizers include nitrogen tetroxide and hydrogen peroxide. These oxidizers remain liquid at room temperature and do not require cooling.&lt;br /&gt;
&lt;br /&gt;
An electric or nuclear rocket uses a single propellant. These rockets store the propellant as a gas or liquid.&lt;br /&gt;
&lt;br /&gt;
The chamber is the area of the rocket where propellants are put under pressure. Pressurizing the propellants enables the rocket to expel them at high speeds.&lt;br /&gt;
&lt;br /&gt;
In a chemical rocket, the fuel and oxidizer combine and burn in an area called the combustion chamber. As they burn, the propellants expand rapidly, creating intense pressure.&lt;br /&gt;
&lt;br /&gt;
Burning propellants create extreme heat and pressure in the combustion chamber. Temperatures in the chamber become hot enough to melt the steel, nickel, copper, and other materials used in its construction. Combustion chambers need insulation or cooling to survive the heat. The walls of the chamber must also be strong enough to withstand intense pressure. The pressure inside a rocket engine can exceed 3,000 pounds per square inch (200 kilograms per square centimeter), nearly 100 times the pressure in the tires of a car or truck.&lt;br /&gt;
&lt;br /&gt;
In a nuclear rocket, the chamber is the area where nuclear fuel heats the propellant, producing pressure. In an electric rocket, the chamber contains the electric devices used to force the propellant out of the nozzle.&lt;br /&gt;
&lt;br /&gt;
The nozzle is the opening at the end of the chamber that allows the pressurized gases to escape. It converts the high pressure of the gases into thrust by forcing the exhaust through a narrow opening, which accelerates the exhaust to high speeds. The exhaust from the nozzle can travel more than 1 mile (1.6 kilometers) per second. Like the chamber, the nozzle requires cooling or insulation to withstand the heat of the exhaust.&lt;br /&gt;
&lt;br /&gt;
Multistage rockets&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
A two-stage rocket carries a propellant and one or more rocket engines in each stage. The first stage launches the rocket. After burning its supply of propellant, the first stage falls away from the rest of the rocket. The second stage then ignites and carries the payload into earth orbit or even farther into space. A balloon and a rocket work in much the same way. Gas flowing from the nozzle creates unequal pressure that lifts the balloon or the rocket off the ground. Image credit: World Book diagram &lt;br /&gt;
&lt;br /&gt;
Many chemical rockets work by burning propellants in a single combustion chamber. Engineers refer to these rockets as single-stage rockets. Missions that require long-distance travel, such as reaching Earth orbit, generally require multiple-stage or multistage rockets. A multistage rocket uses two or more sets of combustion chambers and propellant tanks. These sets, called stages, may be stacked end to end or attached side by side. When a stage runs out of propellant, the rocket discards it. Discarding the empty stage makes the rocket lighter, allowing the remaining stages to accelerate it more strongly. Engineers have designed and launched rockets with as many as five separate stages. The space shuttle uses two stages.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
How rockets are used&lt;br /&gt;
&lt;br /&gt;
People use rockets for high-speed, high-power transportation both within Earth's atmosphere and in space. Rockets are especially valuable for (1) military use, (2) atmospheric research, (3) launching probes and satellites, and (4) space travel.&lt;br /&gt;
&lt;br /&gt;
Military use&lt;br /&gt;
&lt;br /&gt;
Rockets used by the military vary in size from small rockets used on the battlefield to giant guided missiles that can fly across oceans. The bazooka is a small rocket launcher carried by soldiers for use against armored vehicles. A person using a bazooka has as much striking power as a small tank. Armies use larger rockets to fire explosives far behind enemy lines and to shoot down enemy aircraft. Fighter airplanes carry rocket-powered guided missiles to attack other planes and ground targets. Navy ships use guided missiles to attack other ships, land targets, and planes.&lt;br /&gt;
&lt;br /&gt;
Powerful rockets propel a type of long-range guided missile called an intercontinental ballistic missile (ICBM). Such a missile can travel 3,400 miles (5,500 kilometers) or more to bomb an enemy target with nuclear explosives. An ICBM generally employs two or three separate stages to propel it during the early part of its flight. The ICBM coasts the rest of the way to its target.&lt;br /&gt;
&lt;br /&gt;
Atmospheric research&lt;br /&gt;
&lt;br /&gt;
Scientists use rockets to explore Earth's atmosphere. Sounding rockets, also called meteorological rockets, carry such equipment as barometers, cameras, and thermometers high into the atmosphere. These instruments collect information about the atmosphere and send it by radio to receiving equipment on the ground.&lt;br /&gt;
&lt;br /&gt;
Rockets also provide the power for experimental research airplanes. Engineers use these planes in the development of spacecraft. By studying the flights of such planes as the rocket-powered X-1 and X-15, engineers learned how to control vehicles flying many times as fast as the speed of sound.&lt;br /&gt;
&lt;br /&gt;
Launching probes and satellites&lt;br /&gt;
&lt;br /&gt;
Rockets carry crewless spacecraft called space probes on long voyages to explore the solar system. Probes have explored the sun, the moon, and all the planets in our solar system except Pluto. They carry scientific instruments that gather information about the planets and transmit data back to Earth. Probes have landed on the surface of the moon, Venus, and Mars.&lt;br /&gt;
&lt;br /&gt;
Rockets lift artificial satellites into orbit around Earth. Some orbiting satellites gather information for scientific research. Others relay telephone conversations and radio and television broadcasts across the oceans. Weather satellites track climate patterns and help scientists predict the weather. Navigation satellites, such as those that make up the Global Positioning System (GPS), enable receivers anywhere on Earth to determine their locations with great accuracy. The armed forces use satellites to observe enemy facilities and movements. They also use satellites to communicate, monitor weather, and watch for missile attacks. Not only are satellites launched by rockets, but many satellites use small rocket engines to maintain their proper orbits.&lt;br /&gt;
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Rockets that launch satellites and probes are called launch vehicles. Most of these rockets have from two to four stages. The stages lift the satellite to its proper altitude and give it enough speed -- about 17,000 miles (27,000 kilometers) per hour -- to stay in orbit. A space probe's speed must reach about 25,000 miles (40,000 kilometers) per hour to escape Earth's gravity and continue on its voyage.&lt;br /&gt;
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Engineers created the first launch vehicles by altering military rockets or sounding rockets to carry spacecraft. For example, they added stages to some of these rockets to increase their speed. Today, engineers sometimes attach smaller rockets to a launch vehicle. These rockets, called boosters, provide additional thrust to launch heavier spacecraft.&lt;br /&gt;
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Space travel&lt;br /&gt;
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Rockets launch spacecraft carrying astronauts that orbit Earth and travel into space. These rockets, like the ones used to launch probes and satellites, are called launch vehicles.&lt;br /&gt;
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The Saturn 5 rocket, which carried astronauts to the moon, was the most powerful launch vehicle ever built by the United States. Before launch, it weighed more than 6 million pounds (2.7 million kilograms). It could send a spacecraft weighing more than 100,000 pounds (45,000 kilograms) to the moon. The Saturn 5 used 11 rocket engines to propel three stages.&lt;br /&gt;
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Space shuttles are reusable rockets that can fly into space and return to Earth repeatedly. Engineers have also worked to develop space tugs, smaller rocket-powered vehicles that could tow satellites, boost space probes, and carry astronauts over short distances in orbit. For more information on rockets used in space travel, see Space exploration.&lt;br /&gt;
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Other uses&lt;br /&gt;
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People have fired rockets as distress signals from ships and airplanes and from the ground. Rockets also shoot rescue lines to ships in distress. Small rockets called JATO (jet-assisted take-off) units help heavily loaded airplanes take off. Rockets have long been used in fireworks displays. Kinds of rocket engines&lt;br /&gt;
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The vast majority of rockets are chemical rockets. The two most common types of chemical rockets are solid-propellant rockets and liquid-propellant rockets. Engineers have tested a third type of chemical rocket, called a hybrid rocket, that combines liquid and solid propellants. Electric rockets have propelled space probes and maneuvered orbiting satellites. Researchers have designed experimental nuclear rockets.&lt;br /&gt;
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A solid-propellant rocket burns a solid material called the grain. Engineers design most grains with a hollow core. The propellant burns from the core outward. Unburned propellant shields the engine casing from the heat of combustion. Image credit: World Book diagram by Precision Graphics &lt;br /&gt;
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Solid-propellant rockets burn a rubbery or plastic-like material called the grain. The grain consists of a fuel and an oxidizer in solid form. It is shaped like a cylinder with one or more channels or ports that run through it. The ports increase the surface area of the grain that the rocket burns. Unlike some liquid propellants, the fuel and oxidizer of a solid-propellant rocket do not burn upon contact with each other. Instead, an electric charge ignites a smaller grain. Hot exhaust gases from this grain ignite the main propellant surface.&lt;br /&gt;
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The temperature in the combustion chamber of a solid-propellant rocket ranges from 3000 to 6000 degrees F (1600 to 3300 degrees C). In most of these rockets, engineers build the chamber walls from high-strength steel or titanium to withstand the pressure and heat of combustion. They also may use composite materials consisting of high-strength fibers embedded in rubber or plastic. Composite chambers made from high-strength graphite fibers in a strong adhesive called epoxy weigh less than steel or titanium chambers, enabling the rocket to accelerate its payload more efficiently. Solid propellants burn at a rate of about 0.6 inch (1.5 centimeters) per second.&lt;br /&gt;
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Solid propellants can remain effective after long storage and present little danger of combusting or exploding until ignited. Furthermore, they do not need the pumping and injecting equipment required by liquid propellants. On the other hand, rocket controllers cannot easily stop or restart the burning of solid propellant. This can make a solid-propellant rocket difficult to control. One method used to stop the burning of solid propellant involves blasting the entire nozzle section from the rocket. This method, however, prevents restarting.&lt;br /&gt;
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Rocket designers often choose solid propellants for rockets that must be easy to store, transport, and launch. Military planners prefer solid-propellant rockets for many uses because they can be stored for a long time and fired with little preparation. Solid-propellant rockets power ICBM's, including the American Minuteman 2 and MX and the Russian RT-2. They also propel such smaller missiles as the American Hellfire, Patriot, Sparrow, and Sidewinder, and the French SSBS. Solid-propellant rockets often serve as sounding rockets and as boosters for launch vehicles and cruise missiles. They are also used in fireworks.&lt;br /&gt;
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A liquid-propellant rocket carries fuel and an oxidizer in separate tanks. The fuel circulates through the engine's cooling jacket before entering the combustion chamber. This circulation preheats the fuel for combustion and helps cool the rocket. Image credit: World Book diagram by Precision Graphics &lt;br /&gt;
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Liquid-propellant rockets burn a mixture of fuel and oxidizer in liquid form. These rockets carry the fuel and the oxidizer in separate tanks. A system of pipes and valves feeds the propellants into the combustion chamber. In larger engines, either the fuel or the oxidizer flows around the outside of the chamber before entering it. This flow cools the chamber and preheats the propellant for combustion.&lt;br /&gt;
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A liquid-propellant rocket feeds the fuel and oxidizer into the combustion chamber using either pumps or high-pressure gas. The most common method uses pumps to force the fuel and oxidizer into the combustion chamber. Burning a small portion of the propellants provides the energy to drive the pumps. In the other method, high-pressure gas forces the fuel and oxidizer into the chamber. The gas may be nitrogen or some other gas stored under high pressure or may come from the burning of a small amount of propellants.&lt;br /&gt;
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Some liquid propellants, called hypergols, ignite when the fuel and the oxidizer mix. But most liquid propellants require an ignition system. An electric spark may ignite the propellant, or the burning of a small amount of solid propellant in the combustion chamber may do so. Liquid propellants continue to burn as long as fuel and oxidizer flow into the combustion chamber.&lt;br /&gt;
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Engineers use thin, high-strength steel or aluminum to construct most tanks that hold liquid propellants. They may also reinforce tanks with composite materials like those used in solid-propellant rocket chambers. Most combustion chambers in liquid-propellant rockets are made of steel or nickel.&lt;br /&gt;
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Launch vehicles used by European nations include the European Space Agency's Ariane 5 rocket and Russia's A class and Proton rockets. These vehicles carry space probes and artificial satellites into outer space. The A Class rocket has also carried people into space, and the Proton rocket has carried International Space Station modules. Image credit: World Book illustrations by Oxford Illustrators Limited &lt;br /&gt;
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Liquid propellants usually produce greater thrust than do equal amounts of solid propellants burned in the same amount of time. Controllers can easily adjust or stop burning in a liquid-propellant rocket by increasing or decreasing the flow of propellants into the chamber. Liquid propellants, however, are difficult to handle. If the fuel and oxidizer blend without igniting, the resulting mixture often will explode easily. Liquid propellants also require complicated pumping machinery.&lt;br /&gt;
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Scientists use liquid-propellant rockets for most space launch vehicles. Liquid-propellant rockets serve as the main engines of the space shuttle as well as Europe's Ariane rocket, Russia's Soyuz rocket, and China's Long March rocket.&lt;br /&gt;
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Hybrid rockets combine some of the advantages of both solid-propellant and liquid-propellant rockets. A hybrid rocket uses a liquid oxidizer, such as liquid oxygen, and a solid-fuel grain made of plastic or rubber. The solid-fuel grain lines the inside of the combustion chamber. A pumping system sprays the oxidizer onto the surface of the grain, which is ignited by a smaller grain or torch.&lt;br /&gt;
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Hybrid rockets are safer than solid-propellant rockets because the propellants are not premixed and so will not ignite accidentally. Also, unlike solid-propellant rockets, hybrid rockets can vary thrust or even stop combustion by adjusting the flow of oxidizer. Hybrid engines require only half the pumping gear of liquid-propellant rockets, making them simpler to build.&lt;br /&gt;
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A key disadvantage of hybrid rockets is that their fuel burns slowly, limiting the amount of thrust they can produce. A hybrid rocket burns grain at a rate of about 0.04 inch (1 millimeter) per second. For a given amount of propellant, hybrid rockets typically produce more thrust than solid rockets and less than liquid engines. To generate more thrust, engineers must manufacture complex fuel grains with many separate ports through which oxidizer can flow. This exposes more of the grain to the oxidizer.&lt;br /&gt;
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Researchers have used hybrid rockets to propel targets used in missile testing and to accelerate experimental motorcycles and cars attempting land speed records. Their safety has led designers to attempt to develop hybrid rockets for use in human flight. One such rocket would launch from an airplane to carry people to an altitude of about 60 miles (100 kilometers). Researchers have not yet developed hybrid rockets powerful enough to launch human beings into space. Hybrid rockets can produce enough thrust, however, to boost planetary probes or maneuver satellites in orbit. Hybrid rockets could also power escape mechanisms being developed for new launch vehicles that would carry crews.&lt;br /&gt;
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The safety of hybrid rockets has led engineers to develop them for use in human flight. The Scaled Composites company of Mojave, California, developed a hybrid rocket called SpaceShipOne that launched from an airplane. On June 21, 2004, SpaceShipOne became the first privately funded craft to carry a person into space. It carried the American test pilot Michael Melvill more than 62 miles (100 kilometers) above Earth's surface during a brief test flight.&lt;br /&gt;
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Researchers have also used hybrid rockets to propel targets used in missile testing and to accelerate experimental motorcycles and cars attempting land speed records. In addition, they have worked to develop hybrid rockets to boost planetary probes, maneuver satellites in orbit, and power crew escape mechanisms for launch vehicles.&lt;br /&gt;
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An ion rocket is a kind of electric rocket. Heating coils in the rocket change a fuel, such as xenon, into a vapor. A hot platinum or tungsten ionization grid changes the flowing vapor into a stream of electrically charged particles called ions. Image credit: World Book diagram by Precision Graphics &lt;br /&gt;
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Electric rockets use electric energy to expel ions (electrically charged particles) from the nozzle. Solar panels or a nuclear reactor can provide the energy.&lt;br /&gt;
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In one design, xenon gas passes through an electrified metal grid. The grid strips electrons from the xenon atoms, turning them into positively charged ions. A positively charged screen repels the ions, focusing them into a beam. The beam then enters a negatively charged device called an accelerator. The accelerator speeds up the ions and shoots them out through a nozzle.&lt;br /&gt;
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The exhaust from such rockets travels extremely fast. However, the stream of xenon ions has a relatively low mass. As a result, an electric rocket cannot produce enough thrust to overcome Earth's gravity. Electric rockets used in space must therefore be launched by chemical rockets. Once in space, however, the low rate of mass flow becomes an advantage. It enables an electric rocket to operate for a long time without running out of propellant. The xenon rocket that powered the U.S. space probe Deep Space 1, launched in 1998, fired for a total of over 670 days using only 160 pounds (72 kilograms) of propellant. In addition, small electric rockets using xenon propellant have provided the thrust to keep communications satellites in position above Earth's surface.&lt;br /&gt;
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Another type of electric rocket uses electromagnets rather than charged screens to accelerate xenon ions. This type of rocket powers the SMART-1 lunar probe, launched by the European Space Agency in 2003.&lt;br /&gt;
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A nuclear rocket uses the heat from a nuclear reactor to change a liquid fuel into a gas. Most of the fuel flows through the reactor. Some of the fuel, heated by the nozzle of the rocket, flows through the turbine. The turbine drives the fuel pump. Image credit: World Book diagram by Precision Graphics &lt;br /&gt;
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Nuclear rockets use the heat energy of a nuclear reactor, a device that releases energy by splitting atoms. Some proposed designs would use hydrogen as propellant. The rocket would store the hydrogen as a liquid. Heat from the reactor would boil the liquid, creating hydrogen gas. The gas would expand rapidly and push out from the nozzle.&lt;br /&gt;
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The exhaust speed of a nuclear rocket might reach four times that of a chemical rocket. By expelling a large quantity of hydrogen, a nuclear rocket could therefore achieve high thrust. However, a nuclear rocket would require heavy shielding because a nuclear reactor uses radioactive materials. The shielding would weigh so much that the rocket could not be practically used to boost a launch vehicle. More practical applications would use small nuclear engines with low, continuous thrust to decrease flight times to Mars or other planets.&lt;br /&gt;
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Nuclear rocket developers must also overcome public fears that accidents involving such devices could release harmful radioactive materials. Before nuclear rockets can be launched, engineers must convince the public that such devices are safe.&lt;br /&gt;
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History&lt;br /&gt;
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Historians believe the Chinese invented rockets, but they do not know exactly when. Historical accounts describe "arrows of flying fire" -- believed to have been rockets -- used by Chinese armies in A.D. 1232. By 1300, the use of rockets had spread throughout much of Asia and Europe. These first rockets burned a substance called black powder, which consisted of charcoal, saltpeter, and sulfur. For several hundred years, the use of rockets in fireworks displays outranked their military use in importance&lt;br /&gt;
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During the early 1800's, Colonel William Congreve of the British Army developed rockets that could carry explosives. Many of these rockets weighed about 32 pounds (15 kilograms) and could travel 1 3/4 miles (2.7 kilometers). British troops used Congreve rockets against the United States Army during the War of 1812. Austria, Russia, and several other countries also developed military rockets during the early 1800's.&lt;br /&gt;
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The English inventor William Hale improved the accuracy of military rockets. He substituted three fins for the long wooden tail that had been used to guide the rocket. United States troops used Hale rockets in the Mexican War (1846-1848). During the American Civil War (1861-1865), both sides used rockets.&lt;br /&gt;
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Rockets of the early 1900's&lt;br /&gt;
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The Russian school teacher Konstantin E. Tsiolkovsky first stated the correct theory of rocket power. He described his theory in a scientific paper published in 1903. Tsiolkovsky also first presented the ideas of the multistage rocket and rockets using liquid oxygen and hydrogen propellants. In 1926, the American rocket pioneer Robert H. Goddard conducted the first successful launch of a liquid-propellant rocket. The rocket climbed 41 feet (13 meters) into the air at a speed of about 60 miles (97 kilometers) per hour and landed 184 feet (56 meters) away.&lt;br /&gt;
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During the 1930's, rocket research advanced in Germany, the Soviet Union, and the United States. Hermann Oberth led a small group of German engineers and scientists that experimented with rockets. Leading Soviet rocket scientists included Fridrikh A. Tsander and Sergei P. Korolev. Goddard remained the most prominent rocket researcher in the United States.&lt;br /&gt;
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The vehicles shown here helped the United States and the Soviet Union achieve milestones in the exploration of space. The United States no longer builds these rockets, but Russia continues to use the Soviet A Class design in the Soyuz rocket.&lt;br /&gt;
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• Jupiter C, U.S. Lifted Explorer I, the first U.S. satellite, in 1958. 68 feet (21 meters)&lt;br /&gt;
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• Mercury-Redstone, U.S. Launched Alan Shepard in 1961. 83 feet (25 meters)&lt;br /&gt;
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• A Class (Sputnik), Soviet. Boosted Sputnik 1, the first artificial satellite, in 1957. 98 feet (29 meters) Image credit: WORLD BOOK illustrations by Oxford Illustrators Limited &lt;br /&gt;
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During World War II, German engineers under the direction of Wernher von Braun developed the powerful V-2 guided missile. Germany bombarded London and Antwerp, Belgium, with hundreds of V-2's during the last months of the war. American forces captured many V-2 missiles and sent them to the United States for use in research. After the war, von Braun and about 150 other German scientists moved to the United States to continue their work with rockets. Some other German rocket experts went to the Soviet Union.&lt;br /&gt;
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High-altitude rockets&lt;br /&gt;
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For several years after World War II, U.S. scientists benefited greatly by conducting experiments with captured German V-2's. These V-2's became the first rockets used for high-altitude research.&lt;br /&gt;
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The first high-altitude rockets designed and built in the United States included the WAC Corporal, the Aerobee, and the Viking. The 16-foot (4.9-meter) WAC Corporal reached altitudes of about 45 miles (72 kilometers) during test flights in 1945. Early models of the Aerobee climbed about 70 miles (110 kilometers). In 1949, the U.S. Navy launched the Viking, an improved liquid-propellant rocket based chiefly on the V-2. The Viking measured more than 45 feet (14 meters) long, much longer than the Aerobee. But the first models of the Viking rose only about 50 miles (80 kilometers).&lt;br /&gt;
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Rockets developed by the U.S. armed forces during the 1950's included the Jupiter and the Pershing. The Jupiter had a range of about 1,600 miles (2,600 kilometers), and the Pershing could travel about 450 miles (720 kilometers).&lt;br /&gt;
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The vehicles shown here helped the United States and the Soviet Union achieve milestones in the exploration of space. The United States no longer builds these rockets, but Russia continues to use the Soviet A Class design in the Soyuz rocket.&lt;br /&gt;
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• A Class (Vostok), Soviet. Carried Yuri Gagarin, the first person to orbit the earth, in 1961. 126 feet (38 meters)&lt;br /&gt;
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• Saturn 5, U.S. Launched Neil Armstrong, the first person to set foot on the moon, in 1969. 363 feet (111 meters) Image credit: WORLD BOOK illustrations by Oxford Illustrators Limited &lt;br /&gt;
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The U.S. Navy conducted the first successful launch of a Polaris underwater missile in 1960. United States space scientists later used many military rockets developed in the 1950's as the basis for launch vehicles.&lt;br /&gt;
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Rocket-powered airplanes&lt;br /&gt;
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On Oct. 14, 1947, Captain Charles E. Yeager of the U.S. Air Force made the first supersonic (faster than sound) flight. He flew a rocket-powered airplane called the X-1.&lt;br /&gt;
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A rocket engine also powered the X-15, which set an unofficial airplane altitude record of 354,200 feet (107,960 meters) in 1963. In one flight, the X-15 reached a peak speed of 4,520 miles (7,274 kilometers) per hour -- more than six times the speed of sound. A privately owned and developed rocket-powered plane called the EZ-Rocket began piloted test flights in 2001.&lt;br /&gt;
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The space age began on Oct. 4, 1957, when the Soviet Union launched the first artificial satellite, Sputnik 1, aboard a two-stage rocket. On Jan. 31, 1958, the U.S. Army launched the first American satellite, Explorer 1, into orbit with a Juno I rocket.&lt;br /&gt;
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On April 12, 1961, a Soviet rocket put a cosmonaut, Major Yuri A. Gagarin, into orbit around Earth for the first time. On May 5, 1961, a Redstone rocket launched Commander Alan B. Shepard, Jr., the first American to travel in space. On April 12, 1981, the United States launched the rocket-powered Columbia, the first space shuttle to orbit Earth. For more information on the history of rockets in space travel, see Space exploration.&lt;br /&gt;
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Rocket research&lt;br /&gt;
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In the early 2000's, engineers and scientists worked to develop lightweight rocket engines that used safer propellants. They also searched for more efficient propellants that did not require refrigeration. Engineers began designing and testing smaller rocket engines for use in smaller vehicles, such as tiny satellites that may weigh only a few pounds or kilograms when fully loaded.&lt;br /&gt;
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Posted by DarshaN at 6:47 PM 0 comments Links to this post &lt;br /&gt;
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Artificial Satellites &lt;br /&gt;
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Artificial SatellitesAn artificial satellite is a manufactured object that continuously orbits Earth or some other body in space. Most artificial satellites orbit Earth. People use them to study the universe, help forecast the weather, transfer telephone calls over the oceans, assist in the navigation of ships and aircraft, monitor crops and other resources, and support military activities.&lt;br /&gt;
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Artificial satellites also have orbited the moon, the sun, asteroids, and the planets Venus, Mars, and Jupiter. Such satellites mainly gather information about the bodies they orbit.&lt;br /&gt;
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Piloted spacecraft in orbit, such as space capsules, space shuttle orbiters, and space stations, are also considered artificial satellites. So, too, are orbiting pieces of "space junk," such as burned-out rocket boosters and empty fuel tanks that have not fallen to Earth. But this article does not deal with these kinds of artificial satellites.&lt;br /&gt;
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Artificial satellites differ from natural satellites, natural objects that orbit a planet. Earth's moon is a natural satellite.&lt;br /&gt;
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The Soviet Union launched the first artificial satellite, Sputnik 1, in 1957. Since then, the United States and about 40 other countries have developed, launched, and operated satellites. Today, about 3,000 useful satellites and 6,000 pieces of space junk are orbiting Earth.&lt;br /&gt;
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Satellite orbits&lt;br /&gt;
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Satellite orbits have a variety of shapes. Some are circular, while others are highly elliptical (egg-shaped). Orbits also vary in altitude. Some circular orbits, for example, are just above the atmosphere at an altitude of about 155 miles (250 kilometers), while others are more than 20,000 miles (32,200 kilometers) above Earth. The greater the altitude, the longer the orbital period -- the time it takes a satellite to complete one orbit.&lt;br /&gt;
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A satellite remains in orbit because of a balance between the satellite's velocity (speed at which it would travel in a straight line) and the gravitational force between the satellite and Earth. Were it not for the pull of gravity, a satellite's velocity would send it flying away from Earth in a straight line. But were it not for velocity, gravity would pull a satellite back to Earth.&lt;br /&gt;
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To help understand the balance between gravity and velocity, consider what happens when a small weight is attached to a string and swung in a circle. If the string were to break, the weight would fly off in a straight line. However, the string acts like gravity, keeping the weight in its orbit. The weight and string can also show the relationship between a satellite's altitude and its orbital period. A long string is like a high altitude. The weight takes a relatively long time to complete one circle. A short string is like a low altitude. The weight has a relatively short orbital period.&lt;br /&gt;
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Many types of orbits exist, but most artificial satellites orbiting Earth travel in one of four types: (1) high altitude, geosynchronous; (2) medium altitude, (3) sun-synchronous, polar; and (4) low altitude. Most orbits of these four types are circular.&lt;br /&gt;
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A high altitude, geosynchronous orbit lies above the equator at an altitude of about 22,300 miles (35,900 kilometers). A satellite in this orbit travels around Earth's axis in exactly the same time, and in the same direction, as Earth rotates about its axis. Thus, as seen from Earth, the satellite always appears at the same place in the sky overhead. To boost a satellite into this orbit requires a large, powerful launch vehicle.&lt;br /&gt;
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A medium altitude orbit has an altitude of about 12,400 miles (20,000 kilometers) and an orbital period of 12 hours. The orbit is outside Earth's atmosphere and is thus very stable. Radio signals sent from a satellite at medium altitude can be received over a large area of Earth's surface. The stability and wide coverage of the orbit make it ideal for navigation satellites.&lt;br /&gt;
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A sun-synchronous, polar orbit has a fairly low altitude and passes almost directly over the North and South poles. A slow drift of the orbit's position is coordinated with Earth's movement around the sun in such a way that the satellite always crosses the equator at the same local time on Earth. Because the satellite flies over all latitudes, its instruments can gather information on almost the entire surface of Earth. One example of this type of orbit is that of the TERRA Earth Observing System's NOAA-H satellite. This satellite studies how natural cycles and human activities affect Earth's climate. The altitude of its orbit is 438 miles (705 kilometers), and the orbital period is 99 minutes. When the satellite crosses the equator, the local time is always either 10:30 a.m. or 10:30 p.m.&lt;br /&gt;
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A low altitude orbit is just above Earth's atmosphere, where there is almost no air to cause drag on the spacecraft and reduce its speed. Less energy is required to launch a satellite into this type of orbit than into any other orbit. Satellites that point toward deep space and provide scientific information generally operate in this type of orbit. The Hubble Space Telescope, for example, operates at an altitude of about 380 miles (610 kilometers), with an orbital period of 97 minutes.&lt;br /&gt;
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Types of artificial satellites&lt;br /&gt;
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A weather satellite called the Geostationary Operational Environmental Satellite observes atmospheric conditions over a large area to help scientists study and forecast the weather. Image credit: NASA &lt;br /&gt;
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Artificial satellites are classified according to their mission. There are six main types of artificial satellites: (1) scientific research, (2) weather, (3) communications, (4) navigation, (5) Earth observing, and (6) military.&lt;br /&gt;
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Scientific research satellites gather data for scientific analysis. These satellites are usually designed to perform one of three kinds of missions. (1) Some gather information about the composition and effects of the space near Earth. They may be placed in any of various orbits, depending on the type of measurements they are to make. (2) Other satellites record changes in Earth and its atmosphere. Many of them travel in sun-synchronous, polar orbits. (3) Still others observe planets, stars, and other distant objects. Most of these satellites operate in low altitude orbits. Scientific research satellites also orbit other planets, the moon, and the sun.&lt;br /&gt;
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Weather satellites help scientists study weather patterns and forecast the weather. Weather satellites observe the atmospheric conditions over large areas.&lt;br /&gt;
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A communications satellite, such as the Tracking and Data Relay Satellite (TDRS) shown here, relays radio, television, and other signals between different points in space and on Earth. Image credit: NASA &lt;br /&gt;
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Some weather satellites travel in a sun-synchronous, polar orbit, from which they make close, detailed observations of weather over the entire Earth. Their instruments measure cloud cover, temperature, air pressure, precipitation, and the chemical composition of the atmosphere. Because these satellites always observe Earth at the same local time of day, scientists can easily compare weather data collected under constant sunlight conditions. The network of weather satellites in these orbits also function as a search and rescue system. They are equipped to detect distress signals from all commercial, and many private, planes and ships.&lt;br /&gt;
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Other weather satellites are placed in high altitude, geosynchronous orbits. From these orbits, they can always observe weather activity over nearly half the surface of Earth at the same time. These satellites photograph changing cloud formations. They also produce infrared images, which show the amount of heat coming from Earth and the clouds.&lt;br /&gt;
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Communications satellites serve as relay stations, receiving radio signals from one location and transmitting them to another. A communications satellite can relay several television programs or many thousands of telephone calls at once. Communications satellites are usually put in a high altitude, geosynchronous orbit over a ground station. A ground station has a large dish antenna for transmitting and receiving radio signals. Sometimes, a group of low orbit communications satellites arranged in a network, called a constellation, work together by relaying information to each other and to users on the ground. Countries and commercial organizations, such as television broadcasters and telephone companies, use these satellites continuously.&lt;br /&gt;
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A navigation satellite, like this Global Positioning System (GPS) satellite, sends signals that operators of aircraft, ships, and land vehicles and people on foot can use to determine their location. Image credit: NASA &lt;br /&gt;
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Navigation satellites enable operators of aircraft, ships, and land vehicles anywhere on Earth to determine their locations with great accuracy. Hikers and other people on foot can also use the satellites for this purpose. The satellites send out radio signals that are picked up by a computerized receiver carried on a vehicle or held in the hand.&lt;br /&gt;
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Navigation satellites operate in networks, and signals from a network can reach receivers anywhere on Earth. The receiver calculates its distance from at least three satellites whose signals it has received. It uses this information to determine its location.&lt;br /&gt;
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Earth observing satellites are used to map and monitor our planet's resources and ever-changing chemical life cycles. They follow sun-synchronous, polar orbits. Under constant, consistent illumination from the sun, they take pictures in different colors of visible light and non-visible radiation. Computers on Earth combine and analyze the pictures. Scientists use Earth observing satellites to locate mineral deposits, to determine the location and size of freshwater supplies, to identify sources of pollution and study its effects, and to detect the spread of disease in crops and forests.&lt;br /&gt;
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An Earth observing satellite surveys our planet's resources. This satellite, Aqua, helps scientists study ocean evaporation and other aspects of the movement and distribution of Earth's water. Image credit: NASA &lt;br /&gt;
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Military satellites include weather, communications, navigation, and Earth observing satellites used for military purposes. Some military satellites -- often called "spy satellites" -- can detect the launch of missiles, the course of ships at sea, and the movement of military equipment on the ground.&lt;br /&gt;
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The life and death of a satellite&lt;br /&gt;
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Building a satellite&lt;br /&gt;
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Every satellite carries special instruments that enable it to perform its mission. For example, a satellite that studies the universe has a telescope. A satellite that helps forecast the weather carries cameras to track the movement of clouds.&lt;br /&gt;
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In addition to such mission-specific instruments, all satellites have basic subsystems, groups of devices that help the instruments work together and keep the satellite operating. For example, a power subsystem generates, stores, and distributes a satellite's electric power. This subsystem may include panels of solar cells that gather energy from the sun. Command and data handling subsystems consist of computers that gather and process data from the instruments and execute commands from Earth.&lt;br /&gt;
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A satellite's instruments and subsystems are designed, built, and tested individually. Workers install them on the satellite one at a time until the satellite is complete. Then the satellite is tested under conditions like those that the satellite will encounter during launch and while in space. If the satellite passes all tests, it is ready to be launched.&lt;br /&gt;
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Launching the satellite&lt;br /&gt;
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Space shuttles carry some satellites into space, but most satellites are launched by rockets that fall into the ocean after their fuel is spent. Many satellites require minor adjustments of their orbit before they begin to perform their function. Built-in rockets called thrusters make these adjustments. Once a satellite is placed into a stable orbit, it can remain there for a long time without further adjustment.&lt;br /&gt;
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Performing the mission&lt;br /&gt;
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Most satellites operate are directed from a control center on Earth. Computers and human operators at the control center monitor the satellite's position, send instructions to its computers, and retrieve information that the satellite has gathered. The control center communicates with the satellite by radio. Ground stations within the satellite's range send and receive the radio signals.&lt;br /&gt;
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A satellite does not usually receive constant direction from its control center. It is like an orbiting robot. It controls its solar panels to keep them pointed toward the sun and keeps its antennas ready to receive commands. Its instruments automatically collect information.&lt;br /&gt;
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Satellites in a high altitude, geosynchronous orbit are always in contact with Earth. Ground stations can contact satellites in low orbits as often as 12 times a day. During each contact, the satellite transmits information and receives instructions. Each contact must be completed during the time the satellite passes overhead -- about 10 minutes.&lt;br /&gt;
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If some part of a satellite breaks down, but the satellite remains capable of doing useful work, the satellite owner usually will continue to operate it. In some cases, ground controllers can repair or reprogram the satellite. In rare instances, space shuttle crews have retrieved and repaired satellites in space. If the satellite can no longer perform usefully and cannot be repaired or reprogrammed, operators from the control center will send a signal to shut it off.&lt;br /&gt;
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Falling from orbit&lt;br /&gt;
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A satellite remains in orbit until its velocity decreases and gravitational force pulls it down into a relatively dense part of the atmosphere. A satellite slows down due to occasional impact with air molecules in the upper atmosphere and the gentle pressure of the sun's energy. When the gravitational force pulls the satellite down far enough into the atmosphere, the satellite rapidly compresses the air in front of it. This air becomes so hot that most or all of the satellite burns up.&lt;br /&gt;
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History&lt;br /&gt;
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In 1955, the United States and the Soviet Union announced plans to launch artificial satellites. On Oct. 4, 1957, the Soviet Union launched Sputnik 1, the first artificial satellite. It circled Earth once every 96 minutes and transmitted radio signals that could be received on Earth. On Nov. 3, 1957, the Soviets launched a second satellite, Sputnik 2. It carried a dog named Laika, the first animal to soar in space. The United States launched its first satellite, Explorer 1, on Jan. 31, 1958, and its second, Vanguard 1, on March 17, 1958.&lt;br /&gt;
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In August 1960, the United States launched the first communications satellite, Echo I. This satellite reflected radio signals back to Earth. In April 1960, the first weather satellite, Tiros I, sent pictures of clouds to Earth. The U.S. Navy developed the first navigation satellites. The Transit 1B navigation satellite first orbited in April 1960. By 1965, more than 100 satellites were being placed in orbit each year.&lt;br /&gt;
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Since the 1970's, scientists have created new and more effective satellite instruments and have made use of computers and miniature electronic technology in satellite design and construction. In addition, more nations and some private businesses have begun to purchase and operate satellites. By the early 2000's, more than 40 countries owned satellites, and nearly 3,000 satellites were operating in orbit.&lt;br /&gt;
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Posted by DarshaN at 6:42 PM 0 comments Links to this post &lt;br /&gt;
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Moon &lt;br /&gt;
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Moon &lt;br /&gt;
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The moon's surface shows striking contrasts of light and dark. The light areas are rugged highlands. The dark zones were partly flooded by lava when volcanoes erupted billions of years ago. The lava froze to form smooth rock. Image credit: Lunar and Planetary Institute &lt;br /&gt;
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Moon is Earth's only natural satellite and the only astronomical body other than Earth ever visited by human beings. The moon is the brightest object in the night sky but gives off no light of its own. Instead, it reflects light from the sun. Like Earth and the rest of the solar system, the moon is about 4.6 billion years old.&lt;br /&gt;
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The moon is much smaller than Earth. The moon's average radius (distance from its center to its surface) is 1,079.6 miles (1,737.4 kilometers), about 27 percent of the radius of Earth.&lt;br /&gt;
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The moon is also much less massive than Earth. The moon has a mass (amount of matter) of 8.10 x 1019 tons (7.35 x 1019 metric tons). Its mass in metric tons would be written out as 735 followed by 17 zeroes. Earth is about 81 times that massive. The moon's density (mass divided by volume) is about 3.34 grams per cubic centimeter, roughly 60 percent of Earth's density.&lt;br /&gt;
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Because the moon has less mass than Earth, the force due to gravity at the lunar surface is only about 1/6 of that on Earth. Thus, a person standing on the moon would feel as if his or her weight had decreased by 5/6. And if that person dropped a rock, the rock would fall to the surface much more slowly than the same rock would fall to Earth.&lt;br /&gt;
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Despite the moon's relatively weak gravitational force, the moon is close enough to Earth to produce tides in Earth's waters. The average distance from the center of Earth to the center of the moon is 238,897 miles (384,467 kilometers). That distance is growing -- but extremely slowly. The moon is moving away from Earth at a speed of about 1 1/2 inches (3.8 centimeters) per year.&lt;br /&gt;
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The distance to the moon is measured to an accuracy of 5 centimeters by a laser beam sent from Earth. The beam bounces off a laser reflector placed on the moon by astronauts, and returns to Earth. Image credit: World Book diagram by Bensen Studios &lt;br /&gt;
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The temperature at the lunar equator ranges from extremely low to extremely high -- from about -280 degrees F (-173 degrees C) at night to +260 degrees F (+127 degrees C) in the daytime. In some deep craters near the moon's poles, the temperature is always near -400 degrees F (-240 degrees C).&lt;br /&gt;
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The moon has no life of any kind. Compared with Earth, it has changed little over billions of years. On the moon, the sky is black -- even during the day -- and the stars are always visible.&lt;br /&gt;
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A person on Earth looking at the moon with the unaided eye can see light and dark areas on the lunar surface. The light areas are rugged, cratered highlands known as terrae (TEHR ee). The word terrae is Latin for lands. The highlands are the original crust of the moon, shattered and fragmented by the impact of meteoroids, asteroids, and comets. Many craters in the terrae exceed 25 miles (40 kilometers) in diameter. The largest is the South Pole-Aitken Basin, which is 1,550 miles (2,500 kilometers) in diameter.&lt;br /&gt;
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The dark areas on the moon are known as maria (MAHR ee uh). The word maria is Latin for seas; its singular is mare (MAHR ee). The term comes from the smoothness of the dark areas and their resemblance to bodies of water. The maria are cratered landscapes that were partly flooded by lava when volcanoes erupted. The lava then froze, forming rock. Since that time, meteoroid impacts have created craters in the maria.&lt;br /&gt;
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The moon has no substantial atmosphere, but small amounts of certain gases are present above the lunar surface. People sometimes refer to those gases as the lunar atmosphere. This "atmosphere" can also be called an exosphere, defined as a tenuous (low-density) zone of particles surrounding an airless body. Mercury and some asteroids also have an exosphere.&lt;br /&gt;
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In 1959, scientists began to explore the moon with robot spacecraft. In that year, the Soviet Union sent a spacecraft called Luna 3 around the side of the moon that faces away from Earth. Luna 3 took the first photographs of that side of the moon. The word luna is Latin for moon.&lt;br /&gt;
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The first people on the moon were U.S. astronauts Neil A. Armstrong, who took this picture, and Buzz Aldrin, who is pictured next to a seismograph. A television camera and a United States flag are in the background. Their lunar module, Eagle, stands at the right. Image credit: NASA &lt;br /&gt;
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On July 20, 1969, the U.S. Apollo 11 lunar module landed on the moon in the first of six Apollo landings. Astronaut Neil A. Armstrong became the first human being to set foot on the moon.&lt;br /&gt;
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In the 1990's, two U.S. robot space probes, Clementine and Lunar Prospector, detected evidence of frozen water at both of the moon's poles. The ice came from comets that hit the moon over the last 2 billion to 3 billion years. The ice apparently has lasted in areas that are always in the shadows of crater rims. Because the ice is in the shade, where the temperature is about -400 degrees F (-240 degrees C), it has not melted and evaporated.&lt;br /&gt;
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This article discusses Moon (The movements of the moon) (Origin and evolution of the moon) (The exosphere of the moon) (Surface features of the moon) (The interior of the moon) (History of moon study).&lt;br /&gt;
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The movements of the moon&lt;br /&gt;
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The moon moves in a variety of ways. For example, it rotates on its axis, an imaginary line that connects its poles. The moon also orbits Earth. Different amounts of the moon's lighted side become visible in phases because of the moon's orbit around Earth. During events called eclipses, the moon is positioned in line with Earth and the sun. A slight motion called libration enables us to see about 59 percent of the moon's surface at different times.&lt;br /&gt;
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Rotation and orbit&lt;br /&gt;
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The moon rotates on its axis once every 29 1/2 days. That is the period from one sunrise to the next, as seen from the lunar surface, and so it is known as a lunar day. By contrast, Earth takes only 24 hours for one rotation.&lt;br /&gt;
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The moon's axis of rotation, like that of Earth, is tilted. Astronomers measure axial tilt relative to a line perpendicular to the ecliptic plane, an imaginary surface through Earth's orbit around the sun. The tilt of Earth's axis is about 23.5 degrees from the perpendicular and accounts for the seasons on Earth. But the tilt of the moon's axis is only about 1.5 degrees, so the moon has no seasons.&lt;br /&gt;
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Another result of the smallness of the moon's tilt is that certain large peaks near the poles are always in sunlight. In addition, the floors of some craters -- particularly near the south pole -- are always in shadow.&lt;br /&gt;
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The moon completes one orbit of Earth with respect to the stars about every 27 1/3 days, a period known as a sidereal month. But the moon revolves around Earth once with respect to the sun in about 29 1/2 days, a period known as a synodic month. A sidereal month is slightly shorter than a synodic month because, as the moon revolves around Earth, Earth is revolving around the sun. The moon needs some extra time to "catch up" with Earth. If the moon started on its orbit from a spot between Earth and the sun, it would return to almost the same place in about 29 1/2 days.&lt;br /&gt;
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A synodic month equals a lunar day. As a result, the moon shows the same hemisphere -- the near side -- to Earth at all times. The other hemisphere -- the far side -- is always turned away from Earth.&lt;br /&gt;
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People sometimes mistakenly use the term dark side to refer to the far side. The moon does have a dark side -- it is the hemisphere that is turned away from the sun. The location of the dark side changes constantly, moving with the terminator, the dividing line between sunlight and dark.&lt;br /&gt;
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The lunar orbit, like the orbit of Earth, is shaped like a slightly flattened circle. The distance between the center of Earth and the moon's center varies throughout each orbit. At perigee (PEHR uh jee), when the moon is closest to Earth, that distance is 225,740 miles (363,300 kilometers). At apogee (AP uh jee), the farthest position, the distance is 251,970 miles (405,500 kilometers). The moon's orbit is elliptical (oval-shaped).&lt;br /&gt;
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Phases&lt;br /&gt;
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As the moon orbits Earth, an observer on Earth can see the moon appear to change shape. It seems to change from a crescent to a circle and back again. The shape looks different from one day to the next because the observer sees different parts of the moon's sunlit surface as the moon orbits Earth. The different appearances are known as the phases of the moon. The moon goes through a complete cycle of phases in a synodic month.&lt;br /&gt;
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The moon has four phases: (1) new moon, (2) first quarter, (3) full moon, and (4) last quarter. When the moon is between the sun and Earth, its sunlit side is turned away from Earth. Astronomers call this darkened phase a new moon.&lt;br /&gt;
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The next night after a new moon, a thin crescent of light appears along the moon's eastern edge. The remaining portion of the moon that faces Earth is faintly visible because of earthshine, sunlight reflected from Earth to the moon. Each night, an observer on Earth can see more of the sunlit side as the terminator, the line between sunlight and dark, moves westward. After about seven days, the observer can see half a full moon, commonly called a half moon. This phase is known as the first quarter because it occurs one quarter of the way through the synodic month. About seven days later, the moon is on the side of Earth opposite the sun. The entire sunlit side of the moon is now visible. This phase is called a full moon.&lt;br /&gt;
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About seven days after a full moon, the observer again sees a half moon. This phase is the last quarter, or third quarter. After another seven days, the moon is between Earth and the sun, and another new moon occurs.&lt;br /&gt;
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As the moon changes from new moon to full moon, and more and more of it becomes visible, it is said to be waxing. As it changes from full moon to new moon, and less and less of it can be seen, it is waning. When the moon appears smaller than a half moon, it is called crescent. When it looks larger than a half moon, but is not yet a full moon, it is called gibbous (GIHB uhs).&lt;br /&gt;
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Like the sun, the moon rises in the east and sets in the west. As the moon progresses through its phases, it rises and sets at different times. In the new moon phase, it rises with the sun and travels close to the sun across the sky. Each successive day, the moon rises an average of about 50 minutes later.&lt;br /&gt;
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Eclipses occur when Earth, the sun, and the moon are in a straight line, or nearly so. A lunar eclipse occurs when Earth gets directly -- or almost directly -- between the sun and the moon, and Earth's shadow falls on the moon. A lunar eclipse can occur only during a full moon. A solar eclipse occurs when the moon gets directly -- or almost directly -- between the sun and Earth, and the moon's shadow falls on Earth. A solar eclipse can occur only during a new moon.&lt;br /&gt;
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During one part of each lunar orbit, Earth is between the sun and the moon; and, during another part of the orbit, the moon is between the sun and Earth. But in most cases, the astronomical bodies are not aligned directly enough to cause an eclipse. Instead, Earth casts its shadow into space above or below the moon, or the moon casts its shadow into space above or below Earth. The shadows extend into space in that way because the moon's orbit is tilted about 5 degrees relative to Earth's orbit around the sun.&lt;br /&gt;
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Libration&lt;br /&gt;
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People on Earth can sometimes see a small part of the far side of the moon. That part is visible because of lunar libration, a slight rotation of the moon as viewed from Earth. There are three kinds of libration: (1) libration in longitude, (2) diurnal (daily) libration, and (3) libration in latitude. Over time, viewers can see more than 50 percent of the moon's surface. Because of libration, about 59 percent of the lunar surface is visible from Earth.&lt;br /&gt;
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Libration in longitude occurs because the moon's orbit is elliptical. As the moon orbits Earth, its speed varies according to a law discovered in the 1600's by the German astronomer Johannes Kepler. When the moon is relatively close to Earth, the moon travels more rapidly than its average speed. When the moon is relatively far from Earth, the moon travels more slowly than average. But the moon always rotates about its own axis at the same rate. So when the moon is traveling more rapidly than average, its rotation is too slow to keep all of the near side facing Earth. And when the moon is traveling more slowly than average, its rotation is too rapid to keep all of the near side facing Earth.&lt;br /&gt;
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Diurnal libration enables an observer on Earth to see around one edge of the moon, then the other, during a single night. The libration occurs because Earth's rotation changes the observer's viewpoint by a distance equal to the diameter of Earth. Image credit: World Book illustration &lt;br /&gt;
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Diurnal libration is caused by a daily change in the position of an observer on Earth relative to the moon. Consider an observer who is at Earth's equator when the moon is full. As Earth rotates from west to east, the observer first sees the moon when it rises at the eastern horizon and last sees it when it sets at the western horizon. During this time, the observer's viewpoint moves about 7,900 miles (12,700 kilometers) -- the diameter of Earth -- relative to the moon. As a result, the moon appears to rotate slightly to the west.&lt;br /&gt;
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While the moon is rising in the east and climbing to its highest point in the sky, the observer can see around the western edge of the near side. As the moon descends to the western horizon, the observer can see around the eastern edge of the near side.&lt;br /&gt;
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Libration in latitude occurs because the moon's axis of rotation is tilted about 6 1/2 degrees relative to a line perpendicular to the moon's orbit around Earth. Thus, during each lunar orbit, the moon's north pole tilts first toward Earth, then away from Earth. When the lunar north pole is tilted toward Earth, people on Earth can see farther than normal along the top of the moon. When that pole is tilted away from Earth, people on Earth can see farther than normal along the bottom of the moon.&lt;br /&gt;
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Origin and evolution of the moon&lt;br /&gt;
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Scientists believe that the moon formed as a result of a collision known as the Giant Impact or the "Big Whack." According to this idea, Earth collided with a planet-sized object 4.6 billion years ago. As a result of the impact, a cloud of vaporized rock shot off Earth's surface and went into orbit around Earth. The cloud cooled and condensed into a ring of small, solid bodies, which then gathered together, forming the moon.&lt;br /&gt;
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The rapid joining together of the small bodies released much energy as heat. Consequently, the moon melted, creating an "ocean" of magma (melted rock).&lt;br /&gt;
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The magma ocean slowly cooled and solidified. As it cooled, dense, iron-rich materials sank deep into the moon. Those materials also cooled and solidified, forming the mantle, the layer of rock beneath the crust.&lt;br /&gt;
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As the crust formed, asteroids bombarded it heavily, shattering and churning it. The largest impacts may have stripped off the entire crust. Some collisions were so powerful that they almost split the moon into pieces. One such collision created the South Pole-Aitken Basin, one of the largest known impact craters in the solar system.&lt;br /&gt;
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A basalt rock that astronauts brought to Earth from the moon formed from lava that erupted from a lunar volcano. Escaping gases created the holes before the lava solidified into rock. Image credit: Lunar and Planetary Institute &lt;br /&gt;
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About 4 billion to 3 billion years ago, melting occurred in the mantle, probably caused by radioactive elements deep in the moon's interior. The resulting magma erupted as dark, iron-rich lava, partly flooding the heavily cratered surface. The lava cooled and solidified into rocks known as basalts (buh SAWLTS).&lt;br /&gt;
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Small eruptions may have continued until as recently as 1 billion years ago. Since that time, only an occasional impact by an asteroid or comet has modified the surface. Because the moon has no atmosphere to burn up meteoroids, the bombardment continues to this day. However, it has become much less intense.&lt;br /&gt;
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Impacts of large objects can create craters. Impacts of micrometeoroids (tiny meteoroids) grind the surface rocks into a fine, dusty powder known as the regolith (REHG uh lihth). Regolith overlies all the bedrock on the moon. Because regolith forms as a result of exposure to space, the longer a rock is exposed, the thicker the regolith that forms on it.&lt;br /&gt;
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The exosphere of the moon&lt;br /&gt;
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The lunar exosphere -- that is, the materials surrounding the moon that make up the lunar "atmosphere" -- consists mainly of gases that arrive as the solar wind. The solar wind is a continuous flow of gases from the sun -- mostly hydrogen and helium, along with some neon and argon.&lt;br /&gt;
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The remainder of the gases in the exosphere form on the moon. A continual "rain" of micrometeoroids heats lunar rocks, melting and vaporizing their surface. The most common atoms in the vapor are atoms of sodium and potassium. Those elements are present in tiny amounts -- only a few hundred atoms of each per cubic centimeter of exosphere. In addition to vapors produced by impacts, the moon also releases some gases from its interior.&lt;br /&gt;
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Most gases of the exosphere concentrate about halfway between the equator and the poles, and they are most plentiful just before sunrise. The solar wind continuously sweeps vapor into space, but the vapor is continuously replaced.&lt;br /&gt;
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During the night, the pressure of gases at the lunar surface is about 3.9 x 10-14 pound per square inch (2.7 x 10-10 pascal). That is a stronger vacuum than laboratories on Earth can usually achieve. The exosphere is so tenuous -- that is, so low in density -- that the rocket exhaust released during each Apollo landing temporarily doubled the total mass of the entire exosphere.&lt;br /&gt;
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The surface of the moon is covered with bowl-shaped holes called craters, shallow depressions called basins, and broad, flat plains known as maria. A powdery dust called the regolith overlies much of the surface of the moon.&lt;br /&gt;
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Craters&lt;br /&gt;
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Euler Crater has central peaks and slumped walls. The peaks almost certainly formed quickly after the impact that produced the crater compressed the ground. The ground rebounded upward, forming the peaks. The crater walls are slumped because the original walls were too steep to withstand the force of gravity. Material fell inward, away from the walls. This crater, in Mare Imbrium (Sea of Rains), is about 17 1/2 miles (28 kilometers) across. Image credit: Lunar and Planetary Institute &lt;br /&gt;
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The vast majority of the moon's craters are formed by the impact of meteoroids, asteroids, and comets. Craters on the moon are named for famous scientists. For example, Copernicus Crater is named for Nicolaus Copernicus, a Polish astronomer who realized in the 1500's that the planets move about the sun. Archimedes Crater is named for the Greek mathematician Archimedes, who made many mathematical discoveries in the 200's B.C.&lt;br /&gt;
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The shape of craters varies with their size. Small craters with diameters of less than 6 miles (10 kilometers) have relatively simple bowl shapes. Slightly larger craters cannot maintain a bowl shape because the crater wall is too steep. Material falls inward from the wall to the floor. As a result, the walls become scalloped and the floor becomes flat.&lt;br /&gt;
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Still larger craters have terraced walls and central peaks. Terraces inside the rim descend like stairsteps to the floor. The same process that creates wall scalloping is responsible for terraces. The central peaks almost certainly form as did the central peaks of impact craters on Earth. Studies of the peaks on Earth show that they result from a deformation of the ground. The impact compresses the ground, which then rebounds, creating the peaks. Material in the central peaks of lunar craters may come from depths as great as 12 miles (19 kilometers).&lt;br /&gt;
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Surrounding the craters is rough, mountainous material -- crushed and broken rocks that were ripped out of the crater cavity by shock pressure. This material, called the crater ejecta blanket, can extend about 60 miles (100 kilometers) from the crater.&lt;br /&gt;
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Farther out are patches of debris and, in many cases, irregular secondary craters, also known as secondaries. Those craters come in a range of shapes and sizes, and they are often clustered in groups or aligned in rows. Secondaries form when material thrown out of the primary (original) crater strikes the surface. This material consists of large blocks, clumps of loosely joined rocks, and fine sprays of ground-up rock. The material may travel thousands of miles or kilometers.&lt;br /&gt;
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Crater rays are light, wispy deposits of powder that can extend thousands of miles or kilometers from the crater. Rays slowly vanish as micrometeoroid bombardment mixes the powder into the upper surface layer. Thus, craters that still have visible rays must be among the youngest craters on the moon.&lt;br /&gt;
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Craters larger than about 120 miles (200 kilometers) across tend to have central mountains. Some of them also have inner rings of peaks, in addition to the central peak. The appearance of a ring signals the next major transition in crater shape -- from crater to basin.&lt;br /&gt;
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Basins are craters that are 190 miles (300 kilometers) or more across. The smaller basins have only a single inner ring of peaks, but the larger ones typically have multiple rings. The rings are concentric -- that is, they all have the same center, like the rings of a dartboard. The spectacular, multiple-ringed basin called the Eastern Sea (Mare Orientale) is almost 600 miles (1,000 kilometers) across. Other basins can be more than 1,200 miles (2,000 kilometers) in diameter -- as large as the entire western United States.&lt;br /&gt;
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Basins occur equally on the near side and far side. Most basins have little or no fill of basalt, particularly those on the far side. The difference in filling may be related to variations in the thickness of the crust. The far side has a thicker crust, so it is more difficult for molten rock to reach the surface there.&lt;br /&gt;
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In the highlands, the overlying ejecta blankets of the basins make up most of the upper few miles or kilometers of material. Much of this material is a large, thick layer of shattered and crushed rock known as breccia (BREHCH ee uh). Scientists can learn about the original crust by studying tiny fragments of breccia.&lt;br /&gt;
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Maria, the dark areas on the surface of the moon, make up about 16 percent of the surface area. Some maria are named in Latin for weather terms -- for example, Mare Imbrium (Sea of Rains) and Mare Nubium (Sea of Clouds). Others are named for states of mind, as in Mare Serenitatus (Sea of Serenity) and Mare Tranquillitatis (Sea of Tranquility).&lt;br /&gt;
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Landforms on the maria tend to be smaller than those of the highlands. The small size of mare features relates to the scale of the processes that formed them -- volcanic eruptions and crustal deformation, rather than large impacts. The chief landforms on the maria include wrinkle ridges and rilles and other volcanic features.&lt;br /&gt;
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Wrinkle ridges are blisterlike humps that wind across the surface of almost all maria. The ridges are actually broad folds in the rocks, created by compression. Many wrinkle ridges are roughly circular, aligned with small peaks that stick up through the maria and outlining interior rings. Circular ridge systems also outline buried features, such as rims of craters that existed before the maria formed.&lt;br /&gt;
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A lunar rover is parked near the edge of Hadley Rille, a long channel probably formed by lava 4 billion to 3 billion years ago. The slopes in the background are part of a formation called the Swann Hills. This photo was taken during the Apollo 15 mission in 1971. Astronaut David R. Scott is reaching under a seat to get a camera. Image credit: NASA &lt;br /&gt;
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Rilles are snakelike depressions that wind across many areas of the maria. Scientists formerly thought the rilles might be ancient riverbeds. However, they now suspect that the rilles are channels formed by running lava. One piece of evidence favoring this view is the dryness of rock samples brought to Earth by Apollo astronauts; the samples have almost no water in their molecular structure. In addition, detailed photographs show that the rilles are shaped somewhat like channels created by flowing lava on Earth.&lt;br /&gt;
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Volcanic features&lt;br /&gt;
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Scattered throughout the maria are a variety of other features formed by volcanic eruptions. Within Mare Imbrium, scarps (lines of cliffs) wind their way across the surface. The scarps are lava flow fronts, places where lava solidified, enabling lava that was still molten to pile up behind them. The presence of the scarps is one piece of evidence indicating that the maria consist of solidified basaltic lava.&lt;br /&gt;
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Small hills and domes with pits on top are probably little volcanoes. Both dome-shaped and cone-shaped volcanoes cluster together in many places, as on Earth. One of the largest concentrations of cones on the moon is the Marius Hills complex in Oceanus Procellarum (Ocean of Storms). Within this complex are numerous wrinkle ridges and rilles, and more than 50 volcanoes.&lt;br /&gt;
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Large areas of maria and terrae are covered by dark material known as dark mantle deposits. Evidence collected by the Apollo missions confirmed that dark mantling is volcanic ash.&lt;br /&gt;
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Much smaller dark mantles are associated with small craters that lie on the fractured floors of large craters. Those mantles may be cinder cones -- low, broad, cone-shaped hills formed by explosive volcanic eruptions.&lt;br /&gt;
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The interior of the moon&lt;br /&gt;
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The moon, like Earth, has three interior zones -- crust, mantle, and core. However, the composition, structure, and origin of the zones on the moon are much different from those on Earth.&lt;br /&gt;
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Most of what scientists know about the interior of Earth and the moon has been learned by studying seismic events -- earthquakes and moonquakes, respectively. The data on moonquakes come from scientific equipment set up by Apollo astronauts from 1969 to 1972.&lt;br /&gt;
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Crust&lt;br /&gt;
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The average thickness of the lunar crust is about 43 miles (70 kilometers), compared with about 6 miles (10 kilometers) for Earth's crust. The outermost part of the moon's crust is broken, fractured, and jumbled as a result of the large impacts it has endured. This shattered zone gives way to intact material below a depth of about 6 miles. The bottom of the crust is defined by an abrupt increase in rock density at a depth of about 37 miles (60 kilometers) on the near side and about 50 miles (80 kilometers) on the far side.&lt;br /&gt;
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Mantle&lt;br /&gt;
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The mantle of the moon consists of dense rocks that are rich in iron and magnesium. The mantle formed during the period of global melting. Low-density minerals floated to the outer layers of the moon, while dense minerals sank deeper into it.&lt;br /&gt;
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Later, the mantle partly melted due to a build-up of heat in the deep interior. The source of the heat was probably the decay (breakup) of uranium and other radioactive elements. This melting produced basaltic magmas -- bodies of molten rock. The magmas later made their way to the surface and erupted as the mare lavas and ashes. Although mare volcanism occurred for more than 1 billion years -- from at least 4 billion years to fewer than 3 billion years ago -- much less than 1 percent of the volume of the mantle ever remelted.&lt;br /&gt;
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Core&lt;br /&gt;
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Data gathered by Lunar Prospector confirmed that the moon has a core and enabled scientists to estimate its size. The core has a radius of only about 250 miles (400 kilometers). By contrast, the radius of Earth's core is about 2,200 miles (3,500 kilometers).&lt;br /&gt;
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The lunar core has less than 1 percent of the mass of the moon. Scientists suspect that the core consists mostly of iron, and it may also contain large amounts of sulfur and other elements.&lt;br /&gt;
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Earth's core is made mostly of molten iron and nickel. This rapidly rotating molten core is responsible for Earth's magnetic field. A magnetic field is an influence that a magnetic object creates in the region around it. If the core of a planet or a satellite is molten, motion within the core caused by the rotation of the planet or satellite makes the core magnetic. But the small, partly molten core of the moon cannot generate a global magnetic field. However, small regions on the lunar surface are magnetic. Scientists are not sure how these regions acquired magnetism. Perhaps the moon once had a larger, more molten core.&lt;br /&gt;
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There is evidence that the lunar interior formerly contained gas, and that some gas may still be there. Basalt from the moon contains holes called vesicles that are created during a volcanic eruption. On Earth, gas that is dissolved in magma comes out of solution during an eruption, much as carbon dioxide comes out of a carbonated beverage when you shake the drink container. The presence of vesicles in lunar basalt indicates that the deep interior contained gases, probably carbon monoxide or gaseous sulfur. The existence of volcanic ash is further evidence of interior gas; on Earth, volcanic eruptions are largely driven by gas.&lt;br /&gt;
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History of moon study&lt;br /&gt;
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Ancient ideas&lt;br /&gt;
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Some ancient peoples believed that the moon was a rotating bowl of fire. Others thought it was a mirror that reflected Earth's lands and seas. But philosophers in ancient Greece understood that the moon is a sphere in orbit around Earth. They also knew that moonlight is reflected sunlight.&lt;br /&gt;
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Some Greek philosophers believed that the moon was a world much like Earth. In about A.D. 100, Plutarch even suggested that people lived on the moon. The Greeks also apparently believed that the dark areas of the moon were seas, while the bright regions were land.&lt;br /&gt;
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In about A.D. 150, Ptolemy, a Greek astronomer who lived in Alexandria, Egypt, said that the moon was Earth's nearest neighbor in space. He thought that both the moon and the sun orbited Earth. Ptolemy's views survived for more than 1,300 years. But by the early 1500's, the Polish astronomer Nicolaus Copernicus had developed the correct view -- Earth and the other planets revolve about the sun, and the moon orbits Earth.&lt;br /&gt;
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Early observations with telescopes&lt;br /&gt;
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The Italian astronomer and physicist Galileo wrote the first scientific description of the moon based on observations with a telescope. In 1609, Galileo described a rough, mountainous surface. This description was quite different from what was commonly believed -- that the moon was smooth. Galileo noted that the light regions were rough and hilly and the dark regions were smoother plains.&lt;br /&gt;
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The presence of high mountains on the moon fascinated Galileo. His detailed description of a large crater in the central highlands -- probably Albategnius -- began 350 years of controversy and debate about the origin of the "holes" on the moon.&lt;br /&gt;
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Other astronomers of the 1600's mapped and cataloged every surface feature they could see. Increasingly powerful telescopes led to more detailed records. In 1645, the Dutch engineer and astronomer Michael Florent van Langren, also known as Langrenus, published a map that gave names to the surface features of the moon, mostly its craters. A map drawn by the Bohemian-born Italian astronomer Anton M. S. de Rheita in 1645 correctly depicted the bright ray systems of the craters Tycho and Copernicus. Another effort, by the Polish astronomer Johannes Hevelius in 1647, included the moon's libration zones.&lt;br /&gt;
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By 1651, two Jesuit scholars from Italy, the astronomer Giovanni Battista Riccioli and the mathematician and physicist Francesco M. Grimaldi, had completed a map of the moon. That map established the naming system for lunar features that is still in use.&lt;br /&gt;
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Determining the origin of craters&lt;br /&gt;
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Until the late 1800's, most astronomers thought that volcanism formed the craters of the moon. However, in the 1870's, the English astronomer Richard A. Proctor proposed correctly that the craters result from the collision of solid objects with the moon. But at first, few scientists accepted Proctor's proposal. Most astronomers thought that the moon's craters must be volcanic in origin because no one had yet described a crater on Earth as an impact crater, but scientists had found dozens of obviously volcanic craters.&lt;br /&gt;
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In 1892, the American geologist Grove Karl Gilbert argued that most lunar craters were impact craters. He based his arguments on the large size of some of the craters. Those included the basins, which he was the first to recognize as huge craters. Gilbert also noted that lunar craters have only the most general resemblance to calderas (large volcanic craters) on Earth. Both lunar craters and calderas are large circular pits, but their structural details do not resemble each other in any way.&lt;br /&gt;
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In addition, Gilbert created small craters experimentally. He studied what happened when he dropped clay balls and shot bullets into clay and sand targets.&lt;br /&gt;
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Gilbert was the first to recognize that the circular Mare Imbrium was the site of a gigantic impact. By examining photographs, Gilbert also determined which nearby craters formed before and after that event. For example, a crater that is partially covered by ejecta from the Imbrium impact formed before the impact. A crater within the mare formed after the impact.&lt;br /&gt;
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Describing lunar evolution&lt;br /&gt;
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Gilbert suggested that scientists could determine the relative age of surface features by studying the ejecta of the Imbrium impact. That suggestion was the key to unraveling the history of the moon. Gilbert recognized that the moon is a complex body that was built up by innumerable impacts over a long period.&lt;br /&gt;
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In his book The Face of the Moon (1949), the American astronomer and physicist Ralph B. Baldwin further described lunar evolution. He noted the similarity in form between craters on the moon and bomb craters created during World War II (1939-1945) and concluded that lunar craters form by impact.&lt;br /&gt;
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Baldwin did not say that every lunar feature originated with an impact. He stated correctly that the maria are solidified flows of basalt lava, similar to flood lava plateaus on Earth. Finally, independently of Gilbert, he concluded that all circular maria are actually huge impact craters that later filled with lava.&lt;br /&gt;
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In the 1950's, the American chemist Harold C. Urey offered a contrasting view of lunar history. Urey said that, because the moon appears to be cold and rigid, it has always been so. He then stated -- correctly -- that craters are of impact origin. However, he concluded falsely that the maria are blankets of debris scattered by the impacts that created the basins. And he was mistaken in concluding that the moon never melted to any significant extent. Urey had won the 1934 Nobel Prize in chemistry and had an outstanding scientific reputation, so many people took his views seriously. Urey strongly favored making the moon a focus of scientific study. Although some of his ideas were mistaken, his support of moon study was a major factor in making the moon an early goal of the U.S. space program.&lt;br /&gt;
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In 1961, the U.S. geologist Eugene M. Shoemaker founded the Branch of Astrogeology of the U.S. Geological Survey (USGS). Astrogeology is the study of celestial objects other than Earth. Shoemaker showed that the moon's surface could be studied from a geological perspective by recognizing a sequence of relative ages of rock units near the crater Copernicus on the near side. Shoemaker also studied the Meteor Crater in Arizona and documented the impact origin of this feature. In preparation for the Apollo missions to the moon, the USGS began to map the geology of the moon using telescopes and pictures. This work gave scientists their basic understanding of lunar evolution.&lt;br /&gt;
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Apollo missions&lt;br /&gt;
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Beginning in 1959, the Soviet Union and the United States sent a series of robot spacecraft to examine the moon in detail. Their ultimate goal was to land people safely on the moon. The United States finally reached that goal in 1969 with the landing of the Apollo 11 lunar module. The United States conducted six more Apollo missions, including five landings. The last of those was Apollo 17, in December 1972.&lt;br /&gt;
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The Apollo missions revolutionized the understanding of the moon. Much of the knowledge gained about the moon also applies to Earth and the other inner planets -- Mercury, Venus, and Mars. Scientists learned, for example, that impact is a fundamental geological process operating on the planets and their satellites.&lt;br /&gt;
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After the Apollo missions, the Soviets sent four Luna robot craft to the moon. The last, Luna 24, returned samples of lunar soil to Earth in August 1976.&lt;br /&gt;
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Recent exploration&lt;br /&gt;
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The Clementine orbiter used radar signals to find evidence of a large deposit of frozen water on the moon. The orbiter sent radar signals to various target points on the lunar surface. The targets reflected some of the signals to Earth, where they were received by large antennas and analyzed. Image credit: Lunar and Planetary Institute &lt;br /&gt;
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No more spacecraft went to the moon until January 1994, when the United States sent the orbiter Clementine. From February to May of that year, Clementine's four cameras took more than 2 million pictures of the moon. A laser device measured the height and depth of mountains, craters, and other features. Radar signals that Clementine bounced off the moon provided evidence of a large deposit of frozen water. The ice appeared to be inside craters at the south pole.&lt;br /&gt;
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The U.S. probe Lunar Prospector orbited the moon from January 1998 to July 1999. The craft mapped the concentrations of chemical elements in the moon, surveyed the moon's magnetic fields, and found strong evidence of ice at both poles. Small particles of ice are apparently part of the regolith at the poles.&lt;br /&gt;
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The SMART-1 spacecraft, launched by the European Space Agency in 2003, went into orbit around the moon in 2004. The craft's instruments were designed to investigate the moon's origin and conduct a detailed survey of the chemical elements on the lunar surface.&lt;br /&gt;
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Posted by DarshaN at 6:41 PM 0 comments Links to this post &lt;br /&gt;
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Venus &lt;br /&gt;
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Venus &lt;br /&gt;
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The surface of Venus was scanned with radar waves beamed from orbiting space probes to produce this image. The colors are based on photos taken by probes that landed on Venus. Image credit: NASA &lt;br /&gt;
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Venus is known as the Earth's "twin" because the two planets are so similar in size. The diameter of Venus is about 7,520 miles (12,100 kilometers), approximately 400 miles (644 kilometers) smaller than that of the Earth. No other planet comes nearer to the Earth than Venus. At its closest approach, it is about 23.7 million miles (38.2 million kilometers) away.&lt;br /&gt;
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As seen from the Earth, Venus is brighter than any other planet or even any star. At certain times of the year, Venus is the first planet or star that can be seen in the western sky in the evening. At other times, it is the last planet or star that can be seen in the eastern sky in the morning. When Venus is near its brightest point, it can be seen in daylight.&lt;br /&gt;
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Ancient astronomers called the object that appeared in the morning Phosphorus, and the object that appeared in the evening Hesperus. Later, they realized these objects were the same planet. They named Venus in honor of the Roman goddess of love and beauty.&lt;br /&gt;
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Orbit&lt;br /&gt;
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Venus is closer to the sun than any other planet except Mercury. Its mean (average) distance from the sun is about 67.2 million miles (108.2 million kilometers), compared with about 93 million miles (150 million kilometers) for the Earth and about 36 million miles (57.9 million kilometers) for Mercury.&lt;br /&gt;
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Venus travels around the sun in a nearly circular orbit. The planet's distance from the sun varies from about 67.7 million miles (108.9 million kilometers) at its farthest point to about 66.8 million miles (107.5 million kilometers) at its closest point. The orbits of all the other planets are more elliptical (oval-shaped). Venus takes about 225 Earth days, or about 71/2 months, to go around the sun once, compared with 365 days, or one year, for the Earth.&lt;br /&gt;
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Phases&lt;br /&gt;
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When viewed through a telescope, Venus can be seen going through "changes" in shape and size. These apparent changes are called phases, and they resemble those of the moon. They result from different parts of Venus's sunlit areas being visible from the Earth at different times.&lt;br /&gt;
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As Venus and the Earth travel around the sun, Venus can be seen near the opposite side of the sun about every 584 days. At this point, almost all its sunlit area is visible. As Venus moves around the sun toward the Earth, its sunlit area appears to decrease and its size seems to increase. After about 221 days, only half the planet is visible. After another 71 days, Venus nears the same side of the sun as the Earth, and only a thin sunlit area can be seen.&lt;br /&gt;
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When Venus is moving toward the Earth, the planet can be seen in the early evening. When moving away from the Earth, Venus is visible in the early morning.&lt;br /&gt;
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Rotation&lt;br /&gt;
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As Venus travels around the sun, it rotates very slowly on its axis, an imaginary line drawn through its center. Venus's axis is not perpendicular (at an angle of 90¡) to the planet's path around the sun. The axis tilts at an angle of approximately 178¡ from the perpendicular position. Unlike the Earth, Venus does not rotate in the same direction in which it travels around the sun. Rather, Venus rotates in the retrograde (opposite) direction and spins around once every 243 Earth days.&lt;br /&gt;
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Thick clouds of sulfuric acid cover Venus. Because visible light cannot penetrate the clouds, astronomers cannot see the planet's surface with even the most powerful optical telescopes. Image credit: NASA &lt;br /&gt;
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Surface and Atmosphere&lt;br /&gt;
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Although Venus is called the Earth's "twin," its surface conditions appear to be very different from those of the Earth. Geologists have had difficulty learning about the surface of Venus because the planet is always surrounded by thick clouds of sulfuric acid. They have used radar, radio astronomy equipment, and space probes to "explore" Venus.&lt;br /&gt;
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Until recently, much of what geologists knew about the surface of Venus came from ground-based radar observations, the Soviet Union's Venera space probes, and United States Pioneer probes. In 1990, the U.S. space probe Magellan began orbiting Venus, using radar to map the planet's surface.&lt;br /&gt;
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The surface of Venus is extremely hot and dry. There is no liquid water on the planet's surface because the high temperature would cause any liquid to boil away.&lt;br /&gt;
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Maat Mons, a mountain on Venus. Image credit: NASA &lt;br /&gt;
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Venus has a variety of surface features, including level ground, mountains, canyons, and valleys. About 65 percent of the surface is covered by flat, smooth plains. On these plains are thousands of volcanoes, ranging from about 0.5 to 150 miles (0.8 to 240 kilometers) in diameter. Six mountainous regions make up about 35 percent of the surface of Venus. One mountain range, called Maxwell, is about 7 miles (11.3 kilometers) high and about 540 miles (870 kilometers) long. It is the highest feature on the planet. In an area called Beta Regio is a canyon that is 0.6 mile (1.0 kilometer) deep.&lt;br /&gt;
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There are also impact craters on the surface of Venus. Impact craters form when a planet and asteroid collide. The moon, Mars, and Mercury are covered with impact craters, but Venus has substantially fewer craters. The scarcity of impact craters on Venus has led geologists to conclude that the present surface is less than 1 billion years old.&lt;br /&gt;
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An impact crater on Venus measures about 23 miles (37 kilometers) across the depression in its center. A computer produced this image in 1991, using information from a radar scan by the U.S. space probe Magellan. Image credit: NASA &lt;br /&gt;
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A number of surface features on Venus are unlike anything on the Earth. For example, Venus has coronae (crowns), ringlike structures that range from about 95 to 360 miles (155 to 580 kilometers) in diameter. Scientists believe that coronae form when hot material inside the planet rises to the surface. Also on Venus are tesserae (tiles), raised areas in which many ridges and valleys have formed in different directions.&lt;br /&gt;
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The atmosphere of Venus is heavier than that of any other planet. It consists primarily of carbon dioxide, with small amounts of nitrogen and water vapor. The planet's atmosphere also contains minute traces of argon, carbon monoxide, neon, and sulfur dioxide. The atmospheric pressure (pressure exerted by the weight of the gases) on Venus is estimated at 1,323 pounds per square inch (9,122 kilopascals). This is about 90 times greater than the atmospheric pressure on the Earth, which is about 14.7 pounds per square inch (101 kilopascals).&lt;br /&gt;
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Temperature&lt;br /&gt;
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The temperature of the uppermost layer of Venus's clouds averages about 55 degrees F (13 degrees C). However, the temperature of the planet's surface is about 870 degrees F (465 degrees C), higher than that of any other planet and hotter than most ovens.&lt;br /&gt;
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The plants and animals that live on the Earth could not live on the surface of Venus, because of the high temperature. Astronomers do not know whether any form of life exists on Venus, but they doubt that it does.&lt;br /&gt;
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Most astronomers believe that Venus's high surface temperature can be explained by what is known as the greenhouse effect. A greenhouse lets in radiant energy from the sun, but it prevents much of the heat from escaping. The thick clouds and dense atmosphere of Venus work in much the same way. The sun's radiant energy readily filters into the planet's atmosphere. But the large droplets of sulfuric acid present in Venus's clouds -- and the great quantity of carbon dioxide in the atmosphere -- seem to trap much of the solar energy at the planet's surface.&lt;br /&gt;
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Mass and Density&lt;br /&gt;
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The mass of Venus is about four-fifths that of the Earth. The force of gravity on Venus is slightly less than on the Earth. For this reason, an object weighing 100 pounds on the Earth would weigh about 88 pounds on Venus. Venus is also slightly less dense than the Earth. A portion of Venus would weigh a little less than an equal-sized portion of the Earth.&lt;br /&gt;
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Flights to Venus&lt;br /&gt;
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Venus was the first planet to be observed by a passing spacecraft. The unmanned U.S. spacecraft Mariner 2 passed within 21,600 miles (34,760 kilometers) of Venus on Dec. 14, 1962, after traveling through space for more than 31/2 months. It measured various conditions on and near Venus. For example, instruments carried by the spacecraft measured the high temperatures of the planet.&lt;br /&gt;
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Two unmanned Soviet spacecraft "explored" Venus in 1966. Venera 2 passed within 15,000 miles (24,000 kilometers) of the planet on February 27, and Venera 3 crashed into Venus on March 1.&lt;br /&gt;
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Mariner 10 is the only space probe that has visited the planet Mercury. It flew past Venus in 1974, then made three passes near Mercury in 1974 and 1975. A probe called Messenger, launched in 2004, was scheduled to make its first visit to Mercury in 2008. Image credit: NASA &lt;br /&gt;
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In October 1967, spacecraft from both the United States and the Soviet Union reached Venus. On October 18, the Soviet spacecraft Venera 4 dropped a capsule of instruments into Venus's atmosphere by parachute. On October 19, the U.S. spacecraft Mariner 5 passed within 2,480 miles (3,990 kilometers) of Venus. It did not detect a magnetic field. Both probes reported large amounts of carbon dioxide in the planet's atmosphere. On Dec. 15, 1970, the Soviet spacecraft Venera 7 landed on Venus. The U.S. planetary probe Mariner 10 flew near Venus on Feb. 5, 1974. The probe transmitted the first close-up photographs of the planet.&lt;br /&gt;
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On Oct. 22, 1975, the unmanned Soviet spacecraft Venera 9 landed on Venus and provided the first close-up photograph on the planet's surface. Three days later, another Soviet space vehicle, Venera 10, reached Venus. It photographed Venus's surface, measured its atmospheric pressure, and determined the composition of rocks on its surface.&lt;br /&gt;
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Four unmanned spacecraft reached Venus in December 1978. The United States craft Pioneer Venus 1 began orbiting the planet on December 4. This craft transmitted radar images of Venus, produced a map of its surface, and measured temperatures at the top of the planet's clouds. On December 9, the U.S. Pioneer Venus 2 entered the planet's atmosphere and measured its density and chemical composition. On December 21, the Soviet craft Venera 12 landed on Venus. A second Soviet lander, Venera 11, reached the planet's surface four days later. Both probes sent back data on the lower atmosphere of Venus.&lt;br /&gt;
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Two more Soviet spacecraft landed on Venus in 1982 -- Venera 13 on March 1 and Venera 14 on March 5. Both probes transmitted photographs of Venus and analyzed soil samples. Beginning in October 1983, two additional Soviet spacecraft mapped the region of Venus north of 30¡ north latitude using radar. Venera 15 finished its mapping in July 1984; Venera 16, in April 1984. The two probes provided clear images of features as small as 0.9 mile (1.5 kilometers) across.&lt;br /&gt;
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The U.S. spacecraft Magellan began orbiting Venus on Aug. 10, 1990. Radar images received from the Magellan show details of features as small as 330 feet (100 meters) across.&lt;br /&gt;
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Posted by DarshaN at 6:40 PM 0 comments Links to this post &lt;br /&gt;
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Star &lt;br /&gt;
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Star &lt;br /&gt;
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A globular cluster is a tightly grouped swarm of stars held together by gravity. This globular cluster is one of the densest of the 147 known clusters in the Milky Way galaxy. Image credit: NASA &lt;br /&gt;
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A star is a huge, shining ball in space that produces a tremendous amount of light and other forms of energy. The sun is a star, and it supplies Earth with light and heat energy. The stars look like twinkling points of light -- except for the sun. The sun looks like a ball because it is much closer to Earth than any other star.&lt;br /&gt;
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The sun and most other stars are made of gas and a hot, gaslike substance known as plasma. But some stars, called white dwarfs and neutron stars, consist of tightly packed atoms or subatomic particles. These stars are therefore much more dense than anything on Earth.&lt;br /&gt;
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Stars come in many sizes. The sun's radius (distance from its center to its surface) is about 432,000 miles (695,500 kilometers). But astronomers classify the sun as a dwarf because other kinds of stars are much bigger. Some of the stars known as supergiants have a radius about 1,000 times that of the sun. The smallest stars are the neutron stars, some of which have a radius of only about 6 miles (10 kilometers).&lt;br /&gt;
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About 75 percent of all stars are members of a binary system, a pair of closely spaced stars that orbit each other. The sun is not a member of a binary system. However, its nearest known stellar neighbor, Proxima Centauri, is part of a multiple-star system that also includes Alpha Centauri A and Alpha Centauri B.&lt;br /&gt;
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The distance from the sun to Proxima Centauri is more than 25 trillion miles (40 trillion kilometers). This distance is so great that light takes 4.2 years to travel between the two stars. Scientists say that Proxima Centauri is 4.2 light-years from the sun. One light-year, the distance that light travels in a vacuum in a year, equals about 5.88 trillion miles (9.46 trillion kilometers).&lt;br /&gt;
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Stars are grouped in huge structures called galaxies. Telescopes have revealed galaxies throughout the universe at distances of 12 billion to 16 billion light-years. The sun is in a galaxy called the Milky Way that contains more than 100 billion stars. There are more than 100 billion galaxies in the universe, and the average number of stars per galaxy may be 100 billion. Thus, more than 10 billion trillion stars may exist. But if you look at the night sky far from city lights, you can see only about 3,000 of them without using binoculars or a telescope.&lt;br /&gt;
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Stars, like people, have life cycles -- they are born, pass through several phases, and eventually die. The sun was born about 4.6 billion years ago and will remain much as it is for another 5 billion years. Then it will grow to become a red giant. Late in the sun's lifetime, it will cast off its outer layers. The remaining core, called a white dwarf, will slowly fade to become a black dwarf.&lt;br /&gt;
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Other stars will end their lives in different ways. Some will not go through a red giant stage. Instead, they will merely cool to become white dwarfs, then black dwarfs. A small percentage of stars will die in spectacular explosions called supernovae.&lt;br /&gt;
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This article discusses Star (The stars at night) (Names of stars) (Characteristics of stars) (Fusion in stars) (Evolution of stars).&lt;br /&gt;
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The stars at night&lt;br /&gt;
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If you look at the stars on a clear night, you will notice that they seem to twinkle and that they differ greatly in brightness. A much slower movement also takes place in the night sky: If you map the location of several stars for a few hours, you will observe that all the stars revolve slowly about a single point in the sky.&lt;br /&gt;
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Twinkling of stars is caused by movements in Earth's atmosphere. Starlight enters the atmosphere as straight rays. Twinkling occurs because air movements constantly change the path of the light as it comes through the air. You can see a similar effect if you stand in a swimming pool and look down. Unless the water is almost perfectly still, your feet will appear to move and change their shape. This "twinkling" occurs because the moving water constantly changes the path of the light rays that travel from your feet to your eyes.&lt;br /&gt;
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Brightness of stars. How bright a star looks when viewed from Earth depends on two factors: (1) the actual brightness of the star -- that is, the amount of light energy the star emits (sends out) -- and (2) the distance from Earth to the star. A nearby star that is actually dim can appear brighter than a distant star that is really extremely brilliant. For example, Alpha Centauri A seems to be slightly brighter than a star known as Rigel. But Alpha Centauri A emits only 1/100,000 as much light energy as Rigel. Alpha Centauri A seems brighter because it is only 1/325 as far from Earth as Rigel is -- 4.4 light-years for Alpha Centauri A, 1,400 light-years for Rigel.&lt;br /&gt;
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Rising and setting of stars&lt;br /&gt;
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When viewed from Earth's Northern Hemisphere, stars rotate counterclockwise around a point called the celestial north pole. Viewed from the Southern Hemisphere, stars rotate clockwise about the celestial south pole. During the day, the sun moves across the sky in the same direction, and at the same rate, as the stars. These movements do not result from any actual revolution of the sun and stars. Rather, they occur because of the west-to-east rotation of Earth about its own axis. To an observer standing on the ground, Earth seems motionless, while the sun and stars seem to move in circles. But actually, Earth moves.&lt;br /&gt;
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Names of stars&lt;br /&gt;
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Ancient people saw that certain stars are arranged in patterns shaped somewhat like human beings, animals, or common objects. Some of these patterns, called constellations, came to represent figures of mythological characters. For example, the constellation Orion (the Hunter) is named after a hero in Greek mythology.&lt;br /&gt;
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Today, astronomers use constellations, some of which were described by the ancients, in the scientific names of stars. The International Astronomical Union (IAU), the world authority for assigning names to celestial objects, officially recognizes 88 constellations. These constellations cover the entire sky. In most cases, the brightest star in a given constellation has alpha -- the first letter of the Greek alphabet -- as part of its scientific name. For instance, the scientific name for Vega, the brightest star in the constellation Lyra (the Harp), is Alpha Lyrae. Lyrae is Latin for of Lyra.&lt;br /&gt;
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The second brightest star in a constellation is usually designated beta, the second letter of the Greek alphabet, the third brightest is gamma, and so on. The assignment of Greek letters to stars continues until all the Greek letters are used. Numerical designations follow.&lt;br /&gt;
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But the number of known stars has become so large that the IAU uses a different system for newly discovered stars. Most new names consist of an abbreviation followed by a group of symbols. The abbreviation stands for either the type of star or a catalog that lists information about the star. For example, PSR J1302-6350 is a type of star known as a pulsar -- hence the PSR in its name. The symbols indicate the star's location in the sky. The 1302 and the 6350 are coordinates that are similar to the longitude and latitude designations used to indicate locations on Earth's surface. The J indicates that a coordinate system known as J2000 is being used.&lt;br /&gt;
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Characteristics of stars&lt;br /&gt;
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A star has five main characteristics: (1) brightness, which astronomers describe in terms of magnitude or luminosity; (2) color; (3) surface temperature; (4) size; and (5) mass (amount of matter). These characteristics are related to one another in a complex way. Color depends on surface temperature, and brightness depends on surface temperature and size. Mass affects the rate at which a star of a given size produces energy and so affects surface temperature. To make these relationships easier to understand, astronomers developed a graph called the Hertzsprung-Russell (H-R) diagram. This graph, a version of which appears in this article, also helps astronomers understand and describe the life cycles of stars.&lt;br /&gt;
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Magnitude and luminosity&lt;br /&gt;
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Magnitude is based on a numbering system invented by the Greek astronomer Hipparchus in about 125 B.C. Hipparchus numbered groups of stars according to their brightness as viewed from Earth. He called the brightest stars first magnitude stars, the next brightest second magnitude stars, and so on to sixth magnitude stars, the faintest visible stars.&lt;br /&gt;
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Modern astronomers refer to a star's brightness as viewed from Earth as its apparent magnitude. But they have extended Hipparchus's system to describe the actual brightness of stars, for which they use the term absolute magnitude. For technical reasons, they define a star's absolute magnitude as what its apparent magnitude would be if it were 32.6 light-years from Earth.&lt;br /&gt;
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Astronomers have also extended the system of magnitude numbers to include stars brighter than first magnitude and dimmer than sixth magnitude. A star that is brighter than first magnitude has a magnitude less than 1. For example, the apparent magnitude of Rigel is 0.12. Extremely bright stars have magnitudes less than zero -- that is, their designations are negative numbers. The brightest star in the night sky is Sirius, with an apparent magnitude of -1.46. Rigel has an absolute magnitude of -8.1. According to astronomers' present understanding of stars, no star can have an absolute magnitude much brighter than -8. At the other end of the scale, the dimmest stars detected with telescopes have apparent magnitudes up to 28. In theory, no star could have an absolute magnitude much fainter than 16.&lt;br /&gt;
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Luminosity is the rate at which a star emits energy. The scientific term for a rate of energy emission is power, and scientists generally measure power in watts. For example, the luminosity of the sun is 400 trillion trillion watts. But astronomers do not usually measure a star's luminosity in watts. Instead, they express luminosities in terms of the luminosity of the sun. They often say, for instance, that the luminosity of Alpha Centauri A is about 1.3 times that of the sun and that Rigel is roughly 150,000 times as luminous as the sun.&lt;br /&gt;
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Luminosity is related to absolute magnitude in a simple way. A difference of 5 on the absolute magnitude scale corresponds to a factor of 100 on the luminosity scale. Thus, a star with an absolute magnitude of 2 is 100 times as luminous as a star with an absolute magnitude of 7. A star with an absolute magnitude of -3 is 100 times as luminous as a star whose absolute magnitude is 2 and 10,000 times as luminous as a star that has an absolute magnitude of 7.&lt;br /&gt;
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Color and temperature&lt;br /&gt;
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If you look carefully at the stars, even without binoculars or a telescope, you will see a range of color from reddish to yellowish to bluish. For example, Betelgeuse looks reddish, Pollux -- like the sun -- is yellowish, and Rigel looks bluish.&lt;br /&gt;
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A star's color depends on its surface temperature. Astronomers measure star temperatures in a metric unit known as the kelvin. One kelvin equals exactly 1 Celsius degree (1.8 Fahrenheit degree), but the Kelvin and Celsius scales start at different points. The Kelvin scale starts at -273.15 degrees C. Therefore, a temperature of 0 K equals -273.15 degrees C, or -459.67 degrees F. A temperature of 0 degrees C (32 degrees F) equals 273.15 K.&lt;br /&gt;
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A spectacular explosion on the star Eta Carinae about 150 years ago produced three huge clouds of gas and dust -- two puffy lobes and a thin disk. Astronomers call Eta Carinae a luminous blue variable star because of its color and because it often becomes very bright -- as it did when the explosion occurred. Image credit: NASA &lt;br /&gt;
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Dark red stars have surface temperatures of about 2500 K. The surface temperature of a bright red star is approximately 3500 K; that of the sun and other yellow stars, roughly 5500 K. Blue stars range from about 10,000 to 50,000 K in surface temperature.&lt;br /&gt;
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Although a star appears to the unaided eye to have a single color, it actually emits a broad spectrum (band) of colors. You can see that starlight consists of many colors by using a prism to separate and spread the colors of the light of the sun, a yellow star. The visible spectrum includes all the colors of the rainbow. These colors range from red, produced by the photons (particles of light) with the least energy; to violet, produced by the most energetic photons.&lt;br /&gt;
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Visible light is one of six bands of electromagnetic radiation. Ranging from the least energetic to the most energetic, they are: radio waves, infrared rays, visible light, ultraviolet rays, X rays, and gamma rays. All six bands are emitted by stars, but most individual stars do not emit all of them. The combined range of all six bands is known as the electromagnetic spectrum.&lt;br /&gt;
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Astronomers study a star's spectrum by separating it, spreading it out, and displaying it. The display itself is also known as a spectrum. The scientists study thin gaps in the spectrum. When the spectrum is spread out from left to right, the gaps appear as vertical lines. The spectra of stars have dark absorption lines where radiation of specific energies is weak. In a few special cases in the visible spectrum, stars have bright emission lines where radiation of specific energies is especially strong.&lt;br /&gt;
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An absorption line appears when a chemical element or compound absorbs radiation that has the amount of energy corresponding to the line. For example, the spectrum of the visible light coming from the sun has a group of absorption lines in the green part of the spectrum. Calcium in an outer layer of the sun absorbs light rays that would have produced the corresponding green colors.&lt;br /&gt;
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Although all stars have absorption lines in the visible band of the electromagnetic spectrum, emission lines are more common in other parts of the spectrum. For instance, nitrogen in the sun's atmosphere emits powerful radiation that produces emission lines in the ultraviolet part of the spectrum.&lt;br /&gt;
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Size&lt;br /&gt;
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Astronomers measure the size of stars in terms of the sun's radius. Alpha Centauri A, with a radius of 1.05 solar radii (the plural of radius), is almost exactly the same size as the sun. Rigel is much larger at 78 solar radii, and Antares has a huge size of 776 solar radii.&lt;br /&gt;
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A star's size and surface temperature determine its luminosity. Suppose two stars had the same temperature, but the first star had twice the radius of the second star. In this case, the first star would be four times as bright as the second star. Scientists say that luminosity is proportional to radius squared -- that is, multiplied by itself. Imagine that you wanted to compare the luminosities of two stars that had the same temperature but different radii. First, you would divide the radius of the larger star by the radius of the smaller star. Then, you would square your answer.&lt;br /&gt;
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Now, suppose two stars had the same radius but the first star's surface temperature -- measured in kelvins -- was twice that of the second star. In this example, the luminosity of the first star would be 16 times that of the second star. Luminosity is proportional to temperature to the fourth power. Imagine that you wanted to compare the luminosities of stars that had the same radius but different temperatures. First, you would divide the temperature of the warmer star by the temperature of the cooler star. Next, you would square the result. Then, you would square your answer again.&lt;br /&gt;
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Mass&lt;br /&gt;
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Astronomers express the mass of a star in terms of the solar mass, the mass of the sun. For example, they give the mass of Alpha Centauri A as 1.08 solar masses; that of Rigel, as 3.50 solar masses. The mass of the sun is 2 Ž 1030 kilograms, which would be written out as 2 followed by 30 zeros.&lt;br /&gt;
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Stars that have similar masses may not be similar in size -- that is, they may have different densities. Density is the amount of mass per unit of volume. For instance, the average density of the sun is 88 pounds per cubic foot (1,400 kilograms per cubic meter), about 140 percent that of water. Sirius B has almost exactly the same mass as the sun, but it is 90,000 times as dense. As a result, its radius is only about 1/50 of a solar radius.&lt;br /&gt;
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The Hertzsprung-Russell diagram displays the main characteristics of stars. The diagram is named for astronomers Ejnar Hertzsprung of Denmark and Henry Norris Russell of the United States. Working independently of each other, the two scientists developed the diagram around 1910.&lt;br /&gt;
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Luminosity classes&lt;br /&gt;
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Points representing the brightest stars appear toward the top of the H-R diagram; points corresponding to the dimmest stars, toward the bottom. These points appear in groups that correspond to different kinds of stars. In the 1930's, American astronomers William W. Morgan and Philip C. Keenan invented what came to be known as the MK luminosity classification system for these groups. Astronomers revised and extended this system in 1978. In the MK system, the largest and brightest classes have the lowest classification numbers. The MK classes are: Ia, bright supergiant; Ib, supergiant; II, bright giant; III, giant; IV, subgiant; and V, main sequence or dwarf.&lt;br /&gt;
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Because temperature also affects the luminosity of a star, stars from different luminosity classes can overlap. For example, Spica, a class V star, has an absolute magnitude of -3.2; but Pollux, a class III star, is dimmer, with an absolute magnitude of 0.7.&lt;br /&gt;
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Spectral classes&lt;br /&gt;
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Points representing the stars with the highest surface temperatures appear toward the left edge of the H-R diagram; points representing the coolest stars, toward the right edge. In the MK system, there are eight spectral classes, each corresponding to a certain range of surface temperature. From the hottest stars to the coolest, these classes are: O, B, A, F, G, K, M, and L. Each spectral class, in turn, is made up of 10 spectral types, which are designated by the letter for the spectral class and a numeral. The hottest stars in a spectral class are assigned the numeral 0; the coolest stars, the numeral 9.&lt;br /&gt;
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A complete MK designation thus includes symbols for luminosity class and spectral type. For example, the complete designation for the sun is G2V. Alpha Centauri A is also a G2V star, and Rigel's designation is B8Ia.&lt;br /&gt;
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Fusion in stars&lt;br /&gt;
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A star's tremendous energy comes from a process known as nuclear fusion. This process begins when the temperature of the core of the developing star reaches about 1 million K.&lt;br /&gt;
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A star develops from a giant, slowly rotating cloud that consists almost entirely of the chemical elements hydrogen and helium. The cloud also contains atoms of other elements as well as microscopic particles of dust.&lt;br /&gt;
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Due to the force of its own gravity, the cloud begins to collapse inward, thereby becoming smaller. As the cloud shrinks, it rotates more and more rapidly, just as spinning ice skaters turn more rapidly when they pull in their arms. The outermost parts of the cloud form a spinning disk. The inner parts become a roughly spherical clump, which continues to collapse.&lt;br /&gt;
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The collapsing material becomes warmer, and its pressure increases. But the pressure tends to counteract the gravitational force that is responsible for the collapse. Eventually, therefore, the collapse slows to a gradual contraction. The inner parts of the clump form a protostar, a ball-shaped object that is no longer a cloud, but is not yet a star. Surrounding the protostar is an irregular sphere of gas and dust that had been the outer parts of the clump.&lt;br /&gt;
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Combining nuclei&lt;br /&gt;
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When the temperature and pressure in the protostar's core become high enough, nuclear fusion begins. Nuclear fusion is a joining of two atomic nuclei to produce a larger nucleus.&lt;br /&gt;
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Nuclei that fuse are actually the cores of atoms. A complete atom has an outer shell of one or more particles called electrons, which carry a negative electric charge. Deep inside the atom is the nucleus, which contains almost all the atom's mass. The simplest nucleus, that of the most common form of hydrogen, consists of a single particle known as a proton. A proton carries a positive electric charge. All other nuclei have one or more protons and one or more neutrons. A neutron carries no net charge, and so a nucleus is electrically positive. But a complete atom has as many electrons as protons. The net electric charge of a complete atom is therefore zero -- the atom is electrically neutral.&lt;br /&gt;
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However, under the enormous temperatures and pressures near the core of a protostar, atoms lose electrons. The resulting atoms are known as ions, and the mixture of the free electrons and ions is called a plasma.&lt;br /&gt;
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Atoms in the core of the protostar lose all their electrons, and the resulting bare nuclei approach one another at tremendous speeds. Under ordinary circumstances, objects that carry like charges repel each other. However, if the core temperature and pressure become high enough, the repulsion between nuclei can be overcome and the nuclei can fuse. Scientists commonly refer to fusion as "nuclear burning." But fusion has nothing to do with ordinary burning or combustion.&lt;br /&gt;
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Converting mass to energy&lt;br /&gt;
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When two relatively light nuclei fuse, a small amount of their mass turns into energy. Thus, the new nucleus has slightly less mass than the sum of the masses of the original nuclei. The German-born American physicist Albert Einstein discovered the relationship E = mc-squared (E=mc 2) that indicates how much energy is released when fusion occurs. The symbol E represents the energy; m, the mass that is converted; and c-squared (c2), the speed of light squared.&lt;br /&gt;
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The speed of light is 186,282 miles (299,792 kilometers) per second. This is such a large number that the conversion of a tiny quantity of mass produces a tremendous amount of energy. For example, complete conversion of 1 gram of mass releases 90 trillion joules of energy. This amount of energy is roughly equal to the quantity released in the explosion of 22,000 tons (20,000 metric tons) of TNT. This is much more energy than was released by the atomic bomb that the United States dropped on Hiroshima, Japan, in 1945 during World War II. The energy of the bomb was equivalent to the explosion of 13,000 tons (12,000 metric tons) of TNT.&lt;br /&gt;
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Destruction of light nuclei&lt;br /&gt;
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In the core of a protostar, fusion begins when the temperature reaches about 1 million K. This initial fusion destroys nuclei of certain light elements. These include lithium 7 nuclei, which consist of three protons and four neutrons. In the process involving lithium 7, a hydrogen nucleus combines with a lithium 7 nucleus, which then splits into two parts. Each part consists of a nucleus of helium 4 -- two protons and two neutrons. A helium 4 nucleus is also known as an alpha particle.&lt;br /&gt;
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Hydrogen fusion&lt;br /&gt;
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After the light nuclei are destroyed, the protostar continues to contract. Eventually, the core temperature reaches about 10 million K, and hydrogen fusion begins. The protostar is now a star.&lt;br /&gt;
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In hydrogen fusion, four hydrogen nuclei fuse to form a helium 4 nucleus. There are two general forms of this reaction: (1) the proton-proton (p-p) reaction and (2) the carbon-nitrogen-oxygen (CNO) cycle.&lt;br /&gt;
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The p-p reaction can occur in several ways, including the following four-step process:&lt;br /&gt;
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(1) Two protons fuse. In this step, two protons collide, and then one of the protons loses its positive charge by emitting a positron. The proton also emits an electrically neutral particle called a neutrino.&lt;br /&gt;
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A positron is the antimatter equivalent of an electron. It has the same mass as an electron but differs from the electron in having a positive charge. By emitting the positron, the proton becomes a neutron. The new nucleus therefore consists of a proton and a neutron -- a combination known as a deuteron.&lt;br /&gt;
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(2) The positron collides with an electron that happens to be nearby. As a result, the two particles annihilate each other, producing two gamma rays.&lt;br /&gt;
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(3) The deuteron fuses with another proton, producing a helium 3 nucleus, which consists of two protons and one neutron. This step also produces a gamma ray.&lt;br /&gt;
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(4) The helium 3 nucleus fuses with another helium 3 nucleus. This step produces a helium 4 nucleus, and two protons are released.&lt;br /&gt;
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The CNO cycle differs from the p-p reaction mainly in that it involves carbon 12 nuclei. These nuclei consist of six protons and six neutrons. During the cycle, they change into nuclei of nitrogen 15 (7 protons and 8 neutrons) and oxygen 15 (8 protons and 7 neutrons). But they change back to carbon 12 nuclei by the end of the cycle.&lt;br /&gt;
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Fusion of other elements&lt;br /&gt;
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Helium nuclei can fuse to form carbon 12 nuclei. However, the core temperature must rise to about 100 million K for this process to occur. This high temperature is necessary because the helium nuclei must overcome a much higher repulsive force than the force between two protons. Each helium nucleus has two protons, so the repulsive force is four times as high as the force between two protons.&lt;br /&gt;
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The fusion of helium is called the triple-alpha process because it combines three alpha particles to create a carbon 12 nucleus. Helium fusion also produces nuclei of oxygen 16 (8 protons and 8 neutrons) and neon 20 (10 protons and 10 neutrons).&lt;br /&gt;
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At core temperatures of about 600 million K, carbon 12 can fuse to form sodium 23 (11 protons, 12 neutrons), magnesium 24 (12 protons, 12 neutrons), and more neon 20. However, not all stars can reach these temperatures.&lt;br /&gt;
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As fusion processes produce heavier and heavier elements, the temperature necessary for further processes increases. At about 1 billion K, oxygen 16 nuclei can fuse, producing silicon 28 (14 protons, 14 neutrons), phosphorus 31 (15 protons, 16 neutrons), and sulfur 32 (16 protons, 16 neutrons).&lt;br /&gt;
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Fusion can produce energy only as long as the new nuclei have less mass than the sum of the masses of the original nuclei. Energy production continues until nuclei of iron 56 (26 protons, 30 neutrons) begin to combine with other nuclei. When this happens, the new nuclei have slightly more mass than the original nuclei. This process therefore uses energy, rather than producing it.&lt;br /&gt;
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Evolution of stars&lt;br /&gt;
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The life cycles of stars follow three general patterns, each associated with a range of initial mass. There are (1) high-mass stars, which have more than 8 solar masses; (2) intermediate-mass stars, with 0.5 to 8 solar masses -- the group that includes the sun; and (3) low-mass stars, with 0.1 to 0.5 solar mass. Objects with less than 0.1 solar mass do not have enough gravitational force to produce the core temperature necessary for hydrogen fusion.&lt;br /&gt;
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The life cycles of single stars are simpler than those of binary systems, so this section discusses the evolution of single stars first. And because astronomers know much more about the sun than any other star, the discussion begins with the development of intermediate-mass stars.&lt;br /&gt;
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Intermediate-mass stars&lt;br /&gt;
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A cloud that eventually develops into an intermediate-mass star takes about 100,000 years to collapse into a protostar. As a protostar, it has a surface temperature of about 4000 K. It may be anywhere from a few times to a few thousand times as luminous as the sun, depending on its mass.&lt;br /&gt;
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T-Tauri phase&lt;br /&gt;
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When hydrogen fusion begins, the protostar is still surrounded by an irregular mass of gas and dust. But the energy produced by hydrogen fusion pushes away this material as a protostellar wind. In many cases, the disk that is left over from the collapse channels the wind into two narrow cones or jets. One jet emerges from each side of the disk at a right angle to the plane of the disk. The protostar has become a T-Tauri star, a type of object named after the star T in the constellation Taurus (the Bull). A T-Tauri star is a variable star, one that varies in brightness.&lt;br /&gt;
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Main-sequence phase&lt;br /&gt;
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The T-Tauri star contracts for about 10 million years. It stops contracting when its tendency to expand due to the energy produced by fusion in its core balances its tendency to contract due to gravity. By this time, hydrogen fusion in the core is supplying all the star's energy. The star has begun the longest part of its life as a producer of energy from hydrogen fusion, the main-sequence phase. The name of this phase comes from a part of the H-R diagram.&lt;br /&gt;
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Any star -- whatever its mass -- that gets all its energy from hydrogen fusion in its core is said to be "on the main sequence" or "a main-sequence star." The amount of time a star spends there depends on its mass. The greater a star's mass, the more rapidly the hydrogen in its core is used up, and therefore the shorter is its stay on the main sequence. An intermediate-mass star remains on the main sequence for billions of years.&lt;br /&gt;
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Red giant phase&lt;br /&gt;
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When all the hydrogen in the core of an intermediate-mass star has fused into helium, the star changes rapidly. Because the core no longer produces fusion energy, gravity immediately crushes matter down upon it. The resulting compression quickly heats the core and the region around it. The temperature becomes so high that hydrogen fusion begins in a thin shell surrounding the core. This fusion produces even more energy than had been produced by hydrogen fusion in the core. The extra energy pushes against the star's outer layers, and so the star expands enormously.&lt;br /&gt;
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As the star expands, its outer layers become cooler, so the star becomes redder. And because the star's surface area expands greatly, the star also becomes brighter. The star is now a red giant.&lt;br /&gt;
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Horizontal branch phase&lt;br /&gt;
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Eventually, the core temperature reaches 100 million K, high enough to support the triple-alpha process. This process begins so rapidly that its onset is known as helium flash.&lt;br /&gt;
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As the triple-alpha process continues, the core expands, but its temperature drops. This decrease in temperature causes the temperature of the hydrogen-burning shell to drop. Consequently, the energy output of the shell decreases, and the outer layers of the star contract. The star becomes hotter but smaller and fainter than it had been as a red giant. This change occurs over a period of about 100 million years.&lt;br /&gt;
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At the end of this period, the star is in its horizontal branch phase, named for the position of the point representing the star on the H-R diagram. The star steadily burns helium and hydrogen, and so its temperature, size, and luminosity do not change significantly. This phase lasts for about 10 million years.&lt;br /&gt;
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Asymptotic giant phase&lt;br /&gt;
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When all the helium in the core has fused, the core contracts and therefore becomes hotter. The triple-alpha process begins in a shell surrounding the core, and hydrogen fusion continues in a shell surrounding that. Due to the increased energy produced by the burning in the shells, the star's outer layers expand. The star becomes a giant again, but it is bluer and brighter than it was the first time.&lt;br /&gt;
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On the H-R diagram, the point representing the star has moved upward and to the right along a line known as the asymptotic (as ihm TOT ihk) giant branch (AGB). The star is therefore called an AGB star.&lt;br /&gt;
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An AGB star's core is so hot and its gravitational grip on its outermost layers is so weak that those layers blow away in a stellar wind. As each layer blows away, a hotter layer is exposed. Thus, the stellar wind becomes even stronger. Out in space, a succession of new, fast winds slam into old, slow winds that are still moving away from the star. The collisions produce dense shells of gas, some of which cool to form dust.&lt;br /&gt;
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White dwarf phase&lt;br /&gt;
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A planetary nebula with an unusual textured appearance, the cause of which is unknown. This photo was taken by the Hubble Space Telescope. Image credit: NASA &lt;br /&gt;
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In just a few thousand years, all but the hot core of an AGB star blows away, and fusion ceases in the core. The core illuminates the surrounding shells. Such shells looked like planets through the crude telescopes of astronomers who studied them in the 1800's. As a result, the astronomers called the shells planetary nebulae -- and today's astronomers still do. The word nebulae is Latin for clouds.&lt;br /&gt;
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After a planetary nebula fades from view, the remaining core is known as a white dwarf star. This kind of star consists mostly of carbon and oxygen. Its initial temperature is about 100,000 K.&lt;br /&gt;
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Black dwarf phase&lt;br /&gt;
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Because a white dwarf star has no fuel remaining for fusion, it becomes cooler and cooler. Over billions of years, it cools more and more slowly. Eventually, it becomes a black dwarf -- an object too faint to detect. A black dwarf represents the end of the life cycle of an intermediate-mass star.&lt;br /&gt;
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High-mass stars, those with more than 8 solar masses, form quickly and have short lives. A high-mass star forms from a protostar in about 10,000 to 100,000 years.&lt;br /&gt;
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High-mass stars on the main sequence are hot and blue. They are 1,000 to 1 million times as luminous as the sun, and their radii are about 10 times the solar radius. High-mass stars are much less common than intermediate- and low-mass stars. Because they are so bright, however, high-mass stars are visible from great distances, and so many are known.&lt;br /&gt;
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A high-mass star has a strong stellar wind. A star of 30 solar masses can lose 24 solar masses by stellar wind before its core runs out of hydrogen and it leaves the main sequence.&lt;br /&gt;
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As a high-mass star leaves the main sequence, hydrogen begins to fuse in a shell outside its core. As a result, its radius increases to about 100 times that of the sun. However, its luminosity decreases slightly. Because the star is now emitting almost the same amount of energy from a much larger surface, the temperature of the surface decreases. The star therefore becomes redder.&lt;br /&gt;
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As the star evolves, its core heats up to 100 million K, enough to start the triple-alpha process. After about 1 million years, helium fusion ends in the core but begins in a shell outside the core. And, as in an intermediate-mass star, hydrogen fuses in a shell outside that. The high-mass star becomes a bright red supergiant.&lt;br /&gt;
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When the contracting core becomes sufficiently hot, carbon fuses, producing neon, sodium, and magnesium. This phase lasts only about 10,000 years. A succession of fusion processes then occur in the core. Each successive process involves a different element and takes less time. Whenever a different element begins to fuse in the core, the element that had been fusing there continues to fuse in a shell outside the core. In addition, all the elements that had been fusing in shells continue to do so. Neon fuses to produce oxygen and magnesium, a process that lasts about 12 years. Oxygen then fuses, producing silicon and sulfur for about 4 years. Finally, silicon fuses to make iron, taking about a week.&lt;br /&gt;
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Supernovae&lt;br /&gt;
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At this time, the radius of the iron core is about 1,900 miles (3,000 kilometers). Because further fusion would consume energy, the star is now doomed. It cannot produce any more fusion energy to balance the force of gravity.&lt;br /&gt;
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When the mass of the iron core reaches 1.4 solar masses, violent events occur. The force of gravity within the core causes the core to collapse. As a result, the core temperature rises to nearly 10 billion K. At this temperature, the iron nuclei break down into lighter nuclei and eventually into individual protons and neutrons. As the collapse continues, protons combine with electrons, producing neutrons and neutrinos. The neutrinos carry away about 99 percent of the energy produced by the crushing of the core.&lt;br /&gt;
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Now, the core consists of a collapsing ball of neutrons. When the radius of the ball shrinks to about 6 miles (10 kilometers), the ball rebounds like a solid rubber ball that has been squeezed.&lt;br /&gt;
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All the events from the beginning of the collapse of the core to the rebounding of the neutrons occur in about one second. But more violence is in store. The rebounding of the ball of neutrons sends a spherical shock wave outward through the star. Much of the energy of the wave causes fusion to occur in overlying layers, creating new elements. As the wave reaches the star's surface, it boosts temperatures to 200,000 K. As a result, the star explodes, hurling matter into space at speeds of about 9,000 to 25,000 miles (15,000 to 40,000 kilometers) per second. The brilliant explosion is known as a Type II supernova.&lt;br /&gt;
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Supernovae enrich the clouds of gas and dust from which new stars eventually form. This enrichment process has been going on since the first supernovae billions of years ago. Supernovae in the first generation of stars enriched the clouds with materials that later went into making newer stars.&lt;br /&gt;
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Three generations of stars may exist. Astronomers have not found any of what would be the oldest generation, Population III, stars. But they have found members of the other two generations. Population II stars, which would be the second generation, contain relatively small amounts of heavy elements. The more massive ones aged and died quickly, thereby contributing more nuclei of heavy elements to the clouds. For this reason, Population I stars, the third generation, contain the largest amounts of heavy elements. Yet these quantities are tiny compared with the amount of hydrogen and helium in Population I stars. For example, elements other than hydrogen and helium make up from 1 to 2 percent of the mass of the sun, a Population I star.&lt;br /&gt;
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Neutron stars&lt;br /&gt;
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After a Type II supernova blast occurs, the stellar core remains behind. If the core has less than about 3 solar masses, it becomes a neutron star. This object consists almost entirely of neutrons. It packs at least 1.4 solar masses into a sphere with a radius of about 6 to 10 miles (10 to 15 kilometers).&lt;br /&gt;
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Neutron stars have initial temperatures of 10 million K, but they are so small that their visible light is difficult to detect. However, astronomers have detected pulses of radio energy from neutron stars, sometimes at a rate of almost 1,000 pulses per second.&lt;br /&gt;
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A neutron star actually emits two continuous beams of radio energy. The beams flow away from the star in opposite directions. As the star rotates, the beams sweep around in space like searchlight beams. If one of the beams periodically sweeps over Earth, a radio telescope can detect it as a series of pulses. The telescope detects one pulse for each revolution of the star. A star that is detected in this way is known as a pulsar.&lt;br /&gt;
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Black holes&lt;br /&gt;
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If the stellar core remaining after the supernova explosion has about 3 or more solar masses, no known force can support it against its own gravitation. The core collapses to form a black hole, a region of space whose gravitational force is so strong that nothing can escape from it. A black hole is invisible because it traps even light. All its matter is located at a single point in its center. This point, known as a singularity, is much smaller than an atomic nucleus.&lt;br /&gt;
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Low-mass stars, ranging from 0.1 to 0.5 solar mass, have surface temperatures less than about 4,000 K. Their luminosities are less than 2 percent of the solar luminosity. Low-mass stars use hydrogen fuel so slowly that they may shine as main-sequence stars for 100 billion to 1 trillion years. This life span is longer than the present age of the universe, believed to be 10 billion to 20 billion years. Therefore, no low-mass star has ever died. Nevertheless, astronomers have determined that low-mass stars will never fuse anything but hydrogen. Thus, as these stars die, they will not pass through a red-giant phase. Instead, they will merely cool to become white dwarfs, then black dwarfs.&lt;br /&gt;
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Binary stars develop from two protostars that form near each other. More than 50 percent of what seem to the unaided eye to be single stars are actually binaries.&lt;br /&gt;
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Transfer of mass occurs in a binary star system. Matter flows from a sunlike star, in the background in this illustration, to a disk orbiting a white dwarf star, then to the surface of the dwarf. Image credit: Space Telescope Science Institute &lt;br /&gt;
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One star in a binary system can affect the life cycle of the other if the two stars are sufficiently close together. Between the stars is a location called the Lagrange point, named for the French mathematician Joseph Louis Lagrange, where the star's gravitational forces are exactly equal. If one of the stars expands so much that its outer layers pass the Lagrange point, the other star will begin to strip away those layers and accumulate them on its surface.&lt;br /&gt;
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This process, called mass transfer, can take many forms. Mass transfer from a red giant onto a main-sequence companion can add absorption lines of carbon or other elements to the spectrum of the main- sequence star. But if the stars are close together, the material will flow in the opposite direction when the giant star becomes a white dwarf. The matter will spiral in toward the dwarf, forming a hot disk around it. The disk will flare brilliantly in visible and ultraviolet radiation.&lt;br /&gt;
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If the giant star leaves behind a neutron star or a black hole instead of a white dwarf, an X-ray binary may form. In this case, the matter transferred from the main-sequence star will become extremely hot. When this matter strikes the surface of the neutron star or is pulled into the black hole, it will emit X rays.&lt;br /&gt;
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In a third case, the red giant becomes a white dwarf, and the main-sequence star becomes a red giant. When enough gas from the giant accumulates on the dwarf's surface, gas nuclei will fuse violently in a flash called a nova. In some cases, so much gas will accumulate that its weight will cause the dwarf to collapse. Almost instantly, the dwarf's carbon will fuse, and the entire dwarf will explode in a Type I supernova. This kind of explosion is so bright that it can outshine an entire galaxy for a few months.&lt;br /&gt;
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Posted by DarshaN at 6:36 PM 0 comments Links to this post &lt;br /&gt;
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Global Warming &lt;br /&gt;
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Global WarmingGlobal warming is an increase in the average temperature of Earth's surface. Since the late 1800's, the global average temperature has increased about 0.7 to 1.4 degrees F (0.4 to 0.8 degrees C). Many experts estimate that the average temperature will rise an additional 2.5 to 10.4 degrees F (1.4 to 5.8 degrees C) by 2100. That rate of increase would be much larger than most past rates of increase.&lt;br /&gt;
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Scientists worry that human societies and natural ecosystems might not adapt to rapid climate changes. An ecosystem consists of the living organisms and physical environment in a particular area. Global warming could cause much harm, so countries throughout the world drafted an agreement called the Kyoto Protocol to help limit it.&lt;br /&gt;
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Causes of global warming&lt;br /&gt;
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Climatologists (scientists who study climate) have analyzed the global warming that has occurred since the late 1800's. A majority of climatologists have concluded that human activities are responsible for most of the warming. Human activities contribute to global warming by enhancing Earth's natural greenhouse effect. The greenhouse effect warms Earth's surface through a complex process involving sunlight, gases, and particles in the atmosphere. Gases that trap heat in the atmosphere are known as greenhouse gases.&lt;br /&gt;
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The main human activities that contribute to global warming are the burning of fossil fuels (coal, oil, and natural gas) and the clearing of land. Most of the burning occurs in automobiles, in factories, and in electric power plants that provide energy for houses and office buildings. The burning of fossil fuels creates carbon dioxide, whose chemical formula is CO2. CO2 is a greenhouse gas that slows the escape of heat into space. Trees and other plants remove CO2 from the air during photosynthesis, the process they use to produce food. The clearing of land contributes to the buildup of CO2 by reducing the rate at which the gas is removed from the atmosphere or by the decomposition of dead vegetation.&lt;br /&gt;
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A small number of scientists argue that the increase in greenhouse gases has not made a measurable difference in the temperature. They say that natural processes could have caused global warming. Those processes include increases in the energy emitted (given off) by the sun. But the vast majority of climatologists believe that increases in the sun's energy have contributed only slightly to recent warming.&lt;br /&gt;
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The impact of global warming&lt;br /&gt;
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Thousands of icebergs float off the coast of the Antarctic Peninsula after 1,250 square miles (3,240 square kilometers) of the Larsen B ice shelf disintegrated in 2002. The area of the ice was larger than the state of Rhode Island or the nation of Luxembourg. Antarctic ice shelves have been shrinking since the early 1970's because of climate warming in the region. Image credit: NASA/Earth Observatory &lt;br /&gt;
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Continued global warming could have many damaging effects. It might harm plants and animals that live in the sea. It could also force animals and plants on land to move to new habitats. Weather patterns could change, causing flooding, drought, and an increase in damaging storms. Global warming could melt enough polar ice to raise the sea level. In certain parts of the world, human disease could spread, and crop yields could decline.&lt;br /&gt;
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Harm to ocean life&lt;br /&gt;
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Through global warming, the surface waters of the oceans could become warmer, increasing the stress on ocean ecosystems, such as coral reefs. High water temperatures can cause a damaging process called coral bleaching. When corals bleach, they expel the algae that give them their color and nourishment. The corals turn white and, unless the water temperature cools, they die. Added warmth also helps spread diseases that affect sea creatures.&lt;br /&gt;
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Changes of habitat&lt;br /&gt;
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Widespread shifts might occur in the natural habitats of animals and plants. Many species would have difficulty surviving in the regions they now inhabit. For example, many flowering plants will not bloom without a sufficient period of winter cold. And human occupation has altered the landscape in ways that would make new habitats hard to reach or unavailable altogether.&lt;br /&gt;
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Weather damage&lt;br /&gt;
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Extreme weather conditions might become more frequent and therefore more damaging. Changes in rainfall patterns could increase both flooding and drought in some areas. More hurricanes and other tropical storms might occur, and they could become more powerful.&lt;br /&gt;
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Rising sea level&lt;br /&gt;
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Continued global warming might, over centuries, melt large amounts of ice from a vast sheet that covers most of West Antarctica. As a result, the sea level would rise throughout the world. Many coastal areas would experience flooding, erosion, a loss of wetlands, and an entry of seawater into freshwater areas. High sea levels would submerge some coastal cities, small island nations, and other inhabited regions.&lt;br /&gt;
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Threats to human health&lt;br /&gt;
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Tropical diseases, such as malaria and dengue, might spread to larger regions. Longer-lasting and more intense heat waves could cause more deaths and illnesses. Floods and droughts could increase hunger and malnutrition.&lt;br /&gt;
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Changes in crop yields&lt;br /&gt;
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Canada and parts of Russia might benefit from an increase in crop yields. But any increases in yields could be more than offset by decreases caused by drought and higher temperatures -- particularly if the amount of warming were more than a few degrees Celsius. Yields in the tropics might fall disastrously because temperatures there are already almost as high as many crop plants can tolerate.&lt;br /&gt;
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Limited global warming&lt;br /&gt;
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Climatologists are studying ways to limit global warming. Two key methods would be (1) limiting CO2 emissions and (2) carbon sequestration -- either preventing carbon dioxide from entering the atmosphere or removing CO2 already there.&lt;br /&gt;
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Limiting CO2 emissions&lt;br /&gt;
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Two effective techniques for limiting CO2 emissions would be (1) to replace fossil fuels with energy sources that do not emit CO2, and (2) to use fossil fuels more efficiently.&lt;br /&gt;
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Alternative energy sources that do not emit CO2 include the wind, sunlight, nuclear energy, and underground steam. Devices known as wind turbines can convert wind energy to electric energy. Solar cells can convert sunlight to electric energy, and various devices can convert solar energy to useful heat. Geothermal power plants convert energy in underground steam to electric energy.&lt;br /&gt;
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Alternative sources of energy are more expensive to use than fossil fuels. However, increased research into their use would almost certainly reduce their cost.&lt;br /&gt;
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Carbon sequestration could take two forms: (1) underground or underwater storage and (2) storage in living plants.&lt;br /&gt;
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Underground or underwater storage would involve injecting industrial emissions of CO2 into underground geologic formations or the ocean. Suitable underground formations include natural reservoirs of oil and gas from which most of the oil or gas has been removed. Pumping CO2 into a reservoir would have the added benefit of making it easier to remove the remaining oil or gas. The value of that product could offset the cost of sequestration. Deep deposits of salt or coal could also be suitable.&lt;br /&gt;
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The oceans could store much CO2. However, scientists have not yet determined the environmental impacts of using the ocean for carbon sequestration.&lt;br /&gt;
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Storage in living plants&lt;br /&gt;
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Green plants absorb CO2 from the atmosphere as they grow. They combine carbon from CO2 with hydrogen to make simple sugars, which they store in their tissues. After plants die, their bodies decay and release CO2. Ecosystems with abundant plant life, such as forests and even cropland, could tie up much carbon. However, future generations of people would have to keep the ecosystems intact. Otherwise, the sequestered carbon would re-enter the atmosphere as CO2.&lt;br /&gt;
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Agreement on global warming&lt;br /&gt;
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Delegates from more than 160 countries met in Kyoto, Japan, in 1997 to draft the agreement that became known as the Kyoto Protocol. That agreement calls for decreases in the emissions of greenhouse gases.&lt;br /&gt;
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Emissions targets&lt;br /&gt;
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Thirty-eight industrialized nations would have to restrict their emissions of CO2 and five other greenhouse gases. The restrictions would occur from 2008 through 2012. Different countries would have different emissions targets. As a whole, the 38 countries would restrict their emissions to a yearly average of about 95 percent of their 1990 emissions. The agreement does not place restrictions on developing countries. But it encourages the industrialized nations to cooperate in helping developing countries limit emissions voluntarily.&lt;br /&gt;
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Industrialized nations could also buy or sell emission reduction units. Suppose an industrialized nation cut its emissions more than was required by the agreement. That country could sell other industrialized nations emission reduction units allowing those nations to emit the amount equal to the excess it had cut.&lt;br /&gt;
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Several other programs could also help an industrialized nation earn credit toward its target. For example, the nation might help a developing country reduce emissions by replacing fossil fuels in some applications.&lt;br /&gt;
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Approving the agreement&lt;br /&gt;
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The protocol would take effect as a treaty if (1) at least 55 countries ratified (formally approved) it, and (2) the industrialized countries ratifying the protocol had CO2 emissions in 1990 that equaled at least 55 percent of the emissions of all 38 industrialized countries in 1990.&lt;br /&gt;
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In 2001, the United States rejected the Kyoto Protocol. President George W. Bush said that the agreement could harm the U.S. economy. But he declared that the United States would work with other countries to limit global warming. Other countries, most notably the members of the European Union, agreed to continue with the agreement without United States participation.&lt;br /&gt;
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By 2004, more than 100 countries, including nearly all the countries classified as industrialized under the protocol, had ratified the agreement. However, the agreement required ratification by Russia or the United States to go into effect. Russia ratified the protocol in November 2004. The treaty was to come into force in February 2005.&lt;br /&gt;
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Analyzing global warming&lt;br /&gt;
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Scientists use information from several sources to analyze global warming that occurred before people began to use thermometers. Those sources include tree rings, cores (cylindrical samples) of ice drilled from Antarctica and Greenland, and cores drilled out of sediments in oceans. Information from these sources indicates that the temperature increase of the 1900's was probably the largest in the last 1,000 years.&lt;br /&gt;
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Computers help climatologists analyze past climate changes and predict future changes. First, a scientist programs a computer with a set of mathematical equations known as a climate model. The equations describe how various factors, such as the amount of CO2 in the atmosphere, affect the temperature of Earth's surface. Next, the scientist enters data representing the values of those factors at a certain time. He or she then runs the program, and the computer describes how the temperature would vary. A computer's representation of changing climatic conditions is known as a climate simulation.&lt;br /&gt;
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In 2001, the Intergovernmental Panel on Climate Change (IPCC), a group sponsored by the United Nations (UN), published results of climate simulations in a report on global warming. Climatologists used three simulations to determine whether natural variations in climate produced the warming of the past 100 years. The first simulation took into account both natural processes and human activities that affect the climate. The second simulation took into account only the natural processes, and the third only the human activities.&lt;br /&gt;
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The climatologists then compared the temperatures predicted by the three simulations with the actual temperatures recorded by thermometers. Only the first simulation, which took into account both natural processes and human activities, produced results that corresponded closely to the recorded temperatures.&lt;br /&gt;
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The IPCC also published results of simulations that predicted temperatures until 2100. The different simulations took into account the same natural processes but different patterns of human activity. For example, scenarios differed in the amounts of CO2 that would enter the atmosphere due to human activities.&lt;br /&gt;
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The simulations showed that there can be no "quick fix" to the problem of global warming. Even if all emissions of greenhouse gases were to cease immediately, the temperature would continue to increase after 2100 because of the greenhouse gases already in the atmosphere.&lt;br /&gt;
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Posted by DarshaN at 6:34 PM 0 comments Links to this post &lt;br /&gt;
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Pluto &lt;br /&gt;
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PlutoPluto, (PLOO toh), is a dwarf planet that orbits far from the sun. It shares the region of its orbit, known as the Kuiper belt, with a collection of similar icy bodies called Kuiper belt objects (KBO’s). From its discovery in 1930, people widely considered Pluto to be the ninth planet of our solar system. However, because of its small size and irregular orbit, many astronomers questioned whether Pluto should be grouped with worlds like Earth and Jupiter. Pluto seemed to share more similarities with KBO’s. In 2006, this debate led the International Astronomical Union, the recognized authority in naming heavenly objects, to formally classify Pluto as a dwarf planet. Pluto cannot be seen without a telescope.&lt;br /&gt;
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Pluto is so far from Earth that even powerful telescopes reveal little detail of its surface. The Hubble Space Telescope gathered the light for the pictures of Pluto shown here. Image credit: NASA &lt;br /&gt;
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Pluto is about 39 times as far from the sun as Earth is. Its average distance from the sun is about 3,647,240,000 miles (5,869,660,000 kilometers). Pluto travels around the sun in an elliptical (oval-shaped) orbit. At some point in its orbit, it comes closer to the sun than Neptune, the outermost planet. It stays inside Neptune's orbit for about 20 Earth years. This event occurs every 248 Earth years, which is about the same number of Earth years it takes Pluto to travel once around the sun. Pluto entered Neptune's orbit on Jan. 23, 1979, and remained there until Feb. 11, 1999. As it orbits the sun, Pluto spins on its axis, an imaginary line through its center. It spins around once in about six Earth days.&lt;br /&gt;
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Astronomers know little about Pluto's size or surface conditions because it is so far from Earth. Pluto has an estimated diameter of about 1,400 miles (2,300 kilometers), less than a fifth that of Earth. Pluto's surface is one of the coldest places in our solar system. Astronomers believe the temperature on Pluto may be about –375 °F (–225 °C).&lt;br /&gt;
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Pluto is mostly brown. The planet appears to be partly covered with frozen methane gas and to have a thin atmosphere composed mostly of methane. Because Pluto's density is low, astronomers think Pluto is mainly icy. Scientists doubt Pluto has any form of life.&lt;br /&gt;
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In 1905, Percival Lowell, an American astronomer, found that the force of gravity of some unknown object seemed to be affecting the orbits of Neptune and Uranus. In 1915, he predicted the location of a new planet and began searching for it from his observatory in Flagstaff, Arizona. He used a telescope to photograph the area of the sky where he thought the planet would be found. He died in 1916 without finding it. In 1929, Clyde W. Tombaugh, an assistant at the Lowell Observatory, used predictions made by Lowell and other astronomers and photographed the sky with a more powerful, wide-angle telescope. In 1930, Tombaugh found Pluto's image on three photographs. The planet was named after the Roman god of the dead. The name also honors Percival Lowell, whose initials are the first two letters of Pluto.&lt;br /&gt;
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In 1978, astronomers at the U.S. Naval Observatory substation in Flagstaff detected a satellite of Pluto. They named it Charon. This satellite has a diameter of about 750 miles (1,210 kilometers).&lt;br /&gt;
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In 1996, astronomers published the first detailed images of Pluto's surface. The images, taken by the Hubble Space Telescope, show about 12 large bright or dark areas. The bright regions, which include polar caps, are probably frozen nitrogen. The dark areas may be methane frost that has been broken down chemically by ultraviolet radiation from the sun.&lt;br /&gt;
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In 2005, a team of astronomers studying images from the Hubble Space Telescope discovered two previously unknown moons of Pluto. The satellites, later named Hydra and Nix, had diameters of up to 100 miles (160 kilometers) and lay well outside the orbit of Charon.&lt;br /&gt;
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In 2006, the U.S. National Aeronautics and Space Administration (NASA) launched the New Horizons probe. The probe was expected to fly by Pluto in 2015.&lt;br /&gt;
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&lt;br /&gt;
AIR CONDITIONER&lt;br /&gt;
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Air conditioning is a system that introduces cold air into a hot space to make it more comfortable. Air conditioning typically is used when temperatures are above 70 degrees. It is used in cars, houses, offices, retail stores, restaurants, and other indoor facilities. Unlike heat, air conditioning is considered a luxury, and it is possible to go without it. Heat is considered to be a necessity and all homes must have it. When heat warnings exist, however, lack of air conditioning can present a problem for many elderly people who may live in older brick homes. Without air conditioning, these types of homes literally turn into an oven at a certain temperatures and can cause death.Alternatives to air conditioning are fans, either electric or handheld, or open windows. Air conditioning is used primarily in the summer when temperatures are higher. Therefore electric bills are usually higher in the summer months. Many electric companies offer budget billing, which balances out the high and low bills into a constant monthly payment. Budget billing is based on usage and may gradually increase over time as usage goes up.&lt;br /&gt;
&lt;br /&gt;
There are two types of air conditioners that are primarily used in homes. Window style units are placed in a window. Window air conditioning mainly cools the room that they are placed in. More expensive units may cool off more of the surrounding rooms. Window air conditioners run on electricity. They are placed in windows because the heat in the room is passed outside and swapped with the cold air coming in. Alternatives to window air conditioning units are wall air conditioners, which do not need to be placed in a window. Window units are more common in older homes.&lt;br /&gt;
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New construction typically has central air conditioning built in. Central air conditioning runs the air throughout the entire house with the actual unit located outside. A thermostat controls the temperatures of the house. Older thermostats need to be changed manually to the desired temperature. Newer thermostats are programmable. Temperature settings can be programmed to change at certain times of the day. This can help lower electric bills by allowing the house to be warmer when the house is empty. Running central air conditioning uses a lot of electricity but it is generally more energy efficient than window air conditioning. Many older homes use either window units or have no air conditioning at all.&lt;br /&gt;
&lt;br /&gt;
Infrared (IR) lasers&lt;br /&gt;
&lt;br /&gt;
Infrared or IR lasers have a beam that is in the infrared spectrum which is from 750nm to 1nm in wavelength. This is a longer wavelength than visible light and a shorter wavelength than radio waves. With a beam that is invisible to the naked eye, IR lasers cannot be used for many normal applications such as light shows or alignment. This makes our Stealth IR laser pointer a specialist laser pointer that is not used by the average laser enthusiasts.&lt;br /&gt;
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Applications&lt;br /&gt;
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IR lasers are used by military forces and government agencies world wide in a number of uses. IR lasers are ideal for target acquisition on the battle field where a target can be "painted" with out revealing the lasers location. IR lasers are ideal for use with night vision devices that enhance IR. The invisible nature of IR lasers also makes them ideal for covert monitoring and surveillance. IR lasers are also used in both civilian and military capacity for explosive detection. CWE (chemical warfare agents) absorb IR light, giving them a unique fingerprint detectable by IR lasers. Defense Advanced Research Projects Agency (DARPA) in the USA is working on a portable system for using IR lasers to detect CWEs.&lt;br /&gt;
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Security systems and alarms based on IR laser beams are very effective because intruders are unable to see the beam or know they have triggered an alert. IR lasers have featured in a number of block buster movies in this capacity though normally with technical inaccuracies.&lt;br /&gt;
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there are also a number of medical applications for IR lasers such as treating soft tissue injuries, promoting healing and as a treatment for acne. There are numerous documented cases where IR lasers such as our Stealth laser pointer have been successfully used to reduce swelling and inflammation of acute and chronic injuries.&lt;br /&gt;
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Safety&lt;br /&gt;
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Safety is a very important issue with IR lasers for two major reasons. Firstly because the beam is invisible, there is no way to avoid the beam and the eyes natural protective blink reflex will not work. The second is that normal protective eye wear for lasers will not work on IR lasers. Safety glasses that are opaque to 532nm and provide more than adequate protection against green laser pointers and portable lasers BUT will be completely transparent to IR lasers such as our Stealth laser pointer. IR lasers need safety glasses specific to IR light.v&lt;br /&gt;
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&lt;span style="color: blue;"&gt;&lt;strong&gt;• STRATEGIC PERSPECTIVE – Decarbonization over centuries&lt;/strong&gt;&lt;/span&gt; &lt;br /&gt;
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Decarbonization or the changing carbon intensity of primary energy for the world. Carbon intensity is calculated as the ratio of the sum of the carbon content of all fuels to the sum of the energy content of all primary energy sources. Figure prepared by N. M. Victor, Program for the Human Environment, The Rockefeller University, 2003.&lt;br /&gt;
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• The most important and surprising fact to emerge from energy studies during the past two decades is that, for the last 200 years, the world has progressively pursued a path of decarbonization, a decreasing relative reliance on carbon&lt;br /&gt;
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• Think of decarbonization as the course over time in the ratio of tons of carbon in the energy supply to the total energy supply, for example, tons of carbon per tons of oil equivalent encompassing all energy supplies.&lt;br /&gt;
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• Wood is made of much cellulose and some lignin. Heated cellulose leaves charcoal, almost pure carbon. Lignin is a hydrocarbon with a complex benzenic structure. Wood effectively burns about ten carbons for each hydrogen atom. &lt;br /&gt;
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• Coal approaches parity with one or two C’s per H, depending on the &lt;br /&gt;
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• Oils are lighter yet, with, for example, with two H’s per C, in kerosene or jet fuel. &lt;br /&gt;
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• A molecule of methane, the typical natural gas, is a carbon-trim (CH4) that is one carbon for four molecules of hydrogen.&lt;br /&gt;
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Competition between hydrogen and carbon in primary energy sources. The evolution is seen in the ratio of hydrogen (H) to carbon © in the world fuel mix, graphed on a logarithmic scale, analyzed as a logistic growth process and plotted in the linear transform of the logistic (S) curve. Progression of the ratio above natural gas (methane, CH 4) requires production of large amounts of hydrogen fuel with non-fossil energy. Source: J. H. Ausubel, Can Technology Spare the Earth? American Scientist 84(2):166-178, 1996.&lt;br /&gt;
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• In 1800 carbon had 90% of the market. In 1935 the elements tied. With business as usual and the rising Pacific Rim economies not considered, hydrogen will garner 90% of the market by 2100. &lt;br /&gt;
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• Carbon becomes soot or the feared greenhouse gas CO2, and hydrogen becomes only water when combusted, carbon depending on the combustion process combines with nitrogen and oxygen in the air to generate pollutants like CO2, CO, NOX and hydrogen generates water. &lt;br /&gt;
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• Decarbonization towards a hydrogen economy is only a question of when not if. This transition provides a convergence not conflict between energy and environment. &lt;br /&gt;
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• The driving force in evolution of the energy system is the increasing spatial density of energy consumption at the level of the end user. &lt;br /&gt;
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• The British experience demonstrates that, when energy consumption per unit of area rises, the energy sources with higher economies of scale gain an advantage.&lt;br /&gt;
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• Coal had a long run at the top of the energy heap. Coal-powered automobiles, however, never had much appeal. The weight and volume of the fuel were hard problems, especially for a highly distributed transport system. &lt;br /&gt;
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• Oil had a higher energy density than coal—and the advantage of flowing through pipelines and into tanks. It is easy to understand why oil gained ascendancy over coal by 1950 as the world’s leading energy source.&lt;br /&gt;
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• Nevertheless, the share of primary energy used to make electricity has grown steadily in all countries over the past 75 years and now approaches 40%. The Internet economy demands further electrification, with perfect reliability&lt;br /&gt;
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• The stable dynamics of the energy system permit reliable forecasts. Decarbonization essentially defines the future of energy supply.&lt;br /&gt;
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• Globally we are destined to use about 50-80 billion tons more coal. This is about one-third what humans have mined in all our earlier history, and about 30 years at present levels of production. &lt;br /&gt;
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• Coal companies R/D and commercialization is focused on extracting methane from coal seams and sink CO2 there, staying in business without coal extraction. Using CO2 to displace methane (CH4) adsorbed in coal beds provides a two for one bargain &lt;br /&gt;
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• Globally, drivers and others will consume close to 300 billion tons more oil, before the fleet runs entirely on H2 separated from methane or water. This amount is almost double the petroleum that has so far been extracted, and about 50 years at present production, so oil companies it is business as usual for a while. &lt;br /&gt;
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• For gas, the next decades will bring enormous growth, matching rising estimates of the gas resource base, which have more than doubled over the past 20 years;&lt;br /&gt;
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• Between its uses to fuel turbines to make electric power and for fuel cells for transport, Natural gas will dominate the primary energy picture for the next few decades. &lt;br /&gt;
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• It is expected that methane will provide perhaps 70% of primary energy soon after the year 2030 and to reach a peak absolute use in 2060 of about 30 x 1012 m3, ten times present annual use. &lt;br /&gt;
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Conclusion&lt;br /&gt;
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Evolution is a series of replacements. Replacements also mark the evolution of the energy system. Between about 1910 and 1930 cars replaced horses in the United States. &lt;br /&gt;
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Earlier steam engines had replaced water wheels and later electric drives replaced steam engines. These replacements required about 50 years in the marketplace. &lt;br /&gt;
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It required about the same amount of time for railways to replace canals as the lead mode of transport and longer for roads to overtake railways and for air to overtake roads.&lt;br /&gt;
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• GLOBAL OVERVIEW OF ENERGY&lt;br /&gt;
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• Increased competition between strategic players for energy&lt;br /&gt;
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• Energy shortfall in USA&lt;br /&gt;
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• Increasing Energy demands of Pacific Rim Nations&lt;br /&gt;
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• Major oil producing countries oil production is on a plateau or peaked&lt;br /&gt;
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• Increasing dependence on Middle Eastern oil.&lt;br /&gt;
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• The oil markets do not work well without safety net&lt;br /&gt;
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• Oil price will rise&lt;br /&gt;
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Greatest Oil Reserves by Country, 2003&lt;br /&gt;
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2002&lt;br /&gt;
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rank Country 2003 proved reserves &lt;br /&gt;
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(billion barrels)&lt;br /&gt;
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1. Saudi Arabia 261.7&lt;br /&gt;
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2. Iraq 115.0&lt;br /&gt;
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3. Iran 100.1&lt;br /&gt;
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4. Kuwait 98.9&lt;br /&gt;
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5. United Arab Emirates 63.0&lt;br /&gt;
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6. Russia 58.8&lt;br /&gt;
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7. Venezuela 53.1&lt;br /&gt;
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8. Nigeria 32.0&lt;br /&gt;
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9. Libya 30.0&lt;br /&gt;
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10. China 23.7&lt;br /&gt;
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NOTES: Figures for Russia are “explored reserves,” which are understood to be proved plus some probable. All other figures are proved reserves recoverable with present technology and prices.&lt;br /&gt;
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Source: World Oil, Vol. 224, No. 8 (Aug. 2003). From: U.S. Energy Information Administration, International Energy Annual 2002 (March–June 2004).&lt;br /&gt;
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PAKISTAN SITUATION &lt;br /&gt;
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ENERGY OVERVIEW &lt;br /&gt;
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Proven Oil Reserves (1/1/02E): 298 million barrels &lt;br /&gt;
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Oil Production (2001E): 57,000 barrels per day (bbl/d), of which 53,000 bbl/d was crude oil &lt;br /&gt;
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Oil Consumption (2001E): 359,000 bbl/d &lt;br /&gt;
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Net Oil Imports (1999E): 302,000 bbl/d &lt;br /&gt;
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Crude Oil Refining Capacity (1/1/02E): 238,850 bbl/d &lt;br /&gt;
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Natural Gas Reserves (1/1/02E): 25.1 trillion cubic feet (Tcf) &lt;br /&gt;
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Natural Gas Production (1999E): 0.8 Tcf &lt;br /&gt;
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Natural Gas Consumption (1999E): 0.8 Tcf &lt;br /&gt;
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Coal Production (1999E): 3.8 million short tons (Mmst) &lt;br /&gt;
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Coal Consumption (1999E): 4.9 Mmst &lt;br /&gt;
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Net Coal Imports (1999E): 1.1 Mmst &lt;br /&gt;
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Recoverable Coal Reserves (12/31/96E): 3.2 billion short tons &lt;br /&gt;
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Electric Generation Capacity (1/1/99E): 17.0 gigawatts (71% thermal, 28% hydro, 1% nuclear) &lt;br /&gt;
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Electricity Generation (1999E): 62 billion kilowatthours &lt;br /&gt;
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ENVIRONMENTAL OVERVIEW &lt;br /&gt;
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Total Energy Consumption (1999E): 1.8 quadrillion Btu* (0.47% of world total energy consumption) &lt;br /&gt;
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Energy-Related Carbon Emissions (1999E): 27.9 million metric tons of carbon (0.45% of world total carbon emissions) &lt;br /&gt;
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Per Capita Energy Consumption (1999E): 12.5 million Btu (vs. U.S. value of 355.8 million Btu) &lt;br /&gt;
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Per Capita Carbon Emissions (1999E): 0.2 metric tons of carbon (vs. U.S. value of 5.5 metric tons of carbon) &lt;br /&gt;
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Energy Intensity (1999E): 31,193 Btu/$1990 (vs U.S. value of 12,638 Btu/$1990)** &lt;br /&gt;
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Carbon Intensity (1999E): 0.48 metric tons of carbon/thousand $1990 (vs U.S. value of 0.19 metric tons/thousand $1990)** &lt;br /&gt;
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Sectoral Share of Energy Consumption (1998E): Residential (48.8%), Industrial (33.4%), Transportation (13.3%), Commercial (4.5%) &lt;br /&gt;
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Sectoral Share of Carbon Emissions (1998E): Industrial (44.9%), Transportation (27.2%), Residential (22.2%), Commercial (5.7%) &lt;br /&gt;
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Fuel Share of Energy Consumption (1999E): Oil (41.9%), Natural Gas (40.0%), Coal (5.0%) &lt;br /&gt;
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Fuel Share of Carbon Emissions (1999E): Oil (54.6%), Natural Gas (37.4%), Coal (8.0%) &lt;br /&gt;
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Renewable Energy Consumption (1998E): 1,145 trillion Btu* (1% increase from 1997) &lt;br /&gt;
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Number of People per Motor Vehicle (1998E): 125 (vs. U.S. value of 1.3) &lt;br /&gt;
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Status in Climate Change Negotiations: Non-Annex I country under the United Nations Framework Convention on Climate Change (ratified June 1st, 1994). Not a signatory to the Kyoto Protocol. &lt;br /&gt;
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Major Environmental Issues: Water pollution from raw sewage, industrial wastes, and agricultural runoff; limited natural fresh water resources; a majority of the population does not have access to potable water; deforestation; soil erosion and desertification. &lt;br /&gt;
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Major International Environmental Agreements: A party to Conventions on Biodiversity, Climate Change, Desertification, Endangered Species, Environmental Modification, Hazardous Wastes, Law of the Sea, Nuclear Test Ban, Ozone Layer Protection, Ship Pollution and Wetlands . Has signed, but not ratified, Marine Life Conservation. &lt;br /&gt;
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* The total energy consumption statistic includes petroleum, dry natural gas, coal, net hydro, nuclear, geothermal, solar, wind, wood and waste electric power. The renewable energy consumption statistic is based on International Energy Agency (IEA) data and includes hydropower, solar, wind, tide, geothermal, solid biomass and animal products, biomass gas and liquids, industrial and municipal wastes. Sectoral shares of energy consumption and carbon emissions are also based on IEA data. &lt;br /&gt;
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**GDP based on EIA International Energy Annual 1999 &lt;br /&gt;
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ENERGY INDUSTRY &lt;br /&gt;
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Organization: Oil and Gas Development Corporation (OGDC), a state company, handles oil and gas exploration and development; Water and Power Development Authority (WAPDA) supplies electricity to most of the country; Karachi Electric Supply Corporation Limited (KESC) serves the greater Karachi metropolitan area; Pakistan Atomic Energy Commission (PAEC) operates one nuclear power plant &lt;br /&gt;
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Major Foreign Energy Company Involvement: AES, Atlantic Richfield, British National Power, Coastal Power, Gaz de France, Total, General Electric, Lasmo Oil (U.K.), Marubeni (Japan), ExxonMobil, Monument Oil &amp;amp; Gas, Premier Oil, Royal Dutch Shell, Xenal (Saudi Arabia) &lt;br /&gt;
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Major Ports: Gwadar, Karachi, Muhammed bin Qasim, Ormaro &lt;br /&gt;
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Major Gas Fields: Bhit, Dhodak, Kadanwari, Mari, Prikoh, Qadipur, Sawan, Sui &lt;br /&gt;
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Major Oil Fields: Dhurnal, Fimkasser, Liari, Mazari, Thora &lt;br /&gt;
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Major Pipelines: Sui Northern Gas Pipeline; Sui Southern Gas Pipeline; Pak-Arab Refinery Company (PARCO) petroleum product pipeline &lt;br /&gt;
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Major Refineries (Capacity): Pak-Arab Refinery near Multan (100,000 bbl/d); Attock Refinery in Rawalpindi (35,000 bbl/d), National Refinery in Korangi (62,050 bbl/d), Pakistan Refinery Ltd. in Karachi (46,300 bbl/d) &lt;br /&gt;
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Pakistan: Environmental Issues &lt;br /&gt;
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Agricultural runoff exacerbated by ongoing deforestation and industrial runoff have polluted water supplies, factory and vehicle emissions have degraded air quality in the urban centers.&lt;br /&gt;
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In an attempt to redress the nation's mounting environmental problems, in 1992 the government issued its National Conservation Strategy Report (NCSR).&lt;br /&gt;
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Building on the Pakistan Environmental Protection Ordinance of 1983, the NCSR stipulated three goals for the country's environmental protection efforts: (1) conservation of natural resources; (2) promotion of sustainable development; and (3) improvement of efficiency in the use and management of resources&lt;br /&gt;
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In addition, in 1993 Pakistan instituted National Environmental Quality Standards (NEQS) on municipal and liquid industrial effluents and industrial gaseous emissions, motor vehicle exhaust, and noise&lt;br /&gt;
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The new environmental regulations were implemented in 1996; only 3% of industries were able to pass the test for compliance. National attention towards environmental issues has increased recently because, under provisions of a World Trade Organization (WTO) agreement, Pakistan will have difficulty after 2005 exporting products from industries without adequate environmental safeguards. &lt;br /&gt;
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Pakistan has not funded environmental protection efforts adequately. A January 2000 report released by the Ministry of Environment showed that Pakistan currently spends about $17 million per year on pollution-related cleanup; however, $84 million is needed to correct the country's environmental problems, and $1.8 billion per year in losses from environmental damage.&lt;br /&gt;
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Much of the country suffers from a lack of potable water due to industrial waste and agricultural runoff that contaminates drinking water supplies.&lt;br /&gt;
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Air Pollution&lt;br /&gt;
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The level of air pollution in Pakistan's two largest cities, Karachi and Lahore, is estimated to be 20 times higher than World Health Organization standards.&lt;br /&gt;
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As industry has expanded, factories have emitted more and more toxic effluents into the air. Also, as in other developing countries, the number of vehicles in Pakistan has swelled in recent years--from 680,000 in 1980 to 5 million in 2003. &lt;br /&gt;
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The 1992 National Conservation Strategy Report claims that the average Pakistani vehicle emits 25 times as much carbon dioxide as the average U.S. vehicle, as well as 20 times as many hydrocarbons and more than 3.5 times as many nitrous oxides in grams per kilometer.&lt;br /&gt;
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Economic damages from urban air pollution are estimated at about $370 million, with 6.4 million people hospitalized annually for air-pollution-related illnesses&lt;br /&gt;
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Energy Consumption&lt;br /&gt;
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Pakistan's energy consumption has nearly tripled in the last 20 years, from 0.6 quadrillion Btu in 1980 to 1.9 quads in 2001&lt;br /&gt;
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In terms of per capita energy consumption, Pakistan's level of 12.9 million Btu in 2001 was higher than Bangladesh's (3.7 million Btu), but virtually on par with India's (12.6 million). In comparison, China's per capita energy consumption in 2001 was 30.9 million Btu, Iran's was 80.3 million Btu, and Russia's was 195.3 million Btu, while U.S. per capita consumption was 341.8 million Btu.&lt;br /&gt;
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• PAKISTAN – THE THREATS AND OPPORTUNITY&lt;br /&gt;
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• THREATS&lt;br /&gt;
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• Imported oil constitutes over 31% of energy consumption 2002/2003 at a cost of $ 3,096 billion.&lt;br /&gt;
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• The depletion/decline of Pakistan’s natural gas reserves/production will increase dependence on imports.&lt;br /&gt;
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• Energy prices are expected to increase over the next few years.&lt;br /&gt;
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• The tipping point in global supply and demand will occur within the next decade if not earlier.&lt;br /&gt;
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• To reduce poverty and increase prosperity – the energy consumption in Pakistan has to increase.&lt;br /&gt;
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• The price and availability of natural gas and oil can potentially have grave impacts to Pakistan’s welfare and national security.&lt;br /&gt;
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• OPPORTUNITIES&lt;br /&gt;
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• India’s appetite for energy is escalating – natural gas pipelines from either Iran or Central Asia will have to pass through Pakistan. LNG for India is an option but at a much higher price.&lt;br /&gt;
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• China also has also signed 20 year natural gas agreement with Iran – though for LNG. As China develops its Western regions it may find a pipeline option more attractive not only for economic but also for security reasons.&lt;br /&gt;
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• Since Pakistan’s situation is more acute than most developed and developing countries it can be a lead player and model in the Changing Global Scenario – Proactive as opposed to traditional economic reactive after the event.&lt;br /&gt;
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• GLOBAL TECHNOLOGY AND COMMERCIALIZATION REVIEW&lt;br /&gt;
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• Most alternate energy sources like wind, solar, geothermal, wave, biomass etc are well documented.&lt;br /&gt;
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• Solar PV panels are still under intense development for increased efficien
