science

famous cars in the America

2010-08-17T02:45:00.000-07:00

What would you say is the world’s most famous individual car? KITT from Knight Rider? Mr. Bean’s Mini? The General Lee? For anyone born prior to the mid 70’s, the answer would probably be “The ’64 James Bond Aston Martin DB5.” Driven by Sean Connery in the classics Goldfinger and Thunderball, it featured a long list of spy gadgetry, and is considered by many to still be the quintessential Bond car. This fall, for the first time ever, the silver beauty will be put up for auction. Start saving now, because it is expected to fetch over US$5 million.

There were actually two cars used in the 007 films. A late-series DB4 was used for close-ups, while a DB5 was used for the fast-driving scenes. Aston Martin loaned both cars to EON Productions for the filming of the movies, after which they were returned to the factory. In 1969, American radio broadcaster Jerry Lee convinced Aston Martin to sell the DB5 to him for $12,000. It has remained in his possession ever since. He is selling it now to raise money for his multi-national crime-prevention charity, the Jerry Lee Foundation.

In the movies, the car featured Q-Branch “optional extras” such as machine guns, a bullet-proof shield, revolving license plates, an ejector passenger seat, oil slick sprayer, nail spreader, smoke screen, and totally awesome spur-like wheel hubs that extended outwards to shred the tires of other cars. They were all controlled by gloriously now-retro toggle switches hidden in the center arm rest. Although the stunt car didn’t actually have any of these features when the movies were being filmed, they were added soon after for publicity tours. Two other DB5’s also did the tour circuit, although they were never used in the filming of either movie.

FMP 7B, as it is known for its original UK registration number, will be put on the block by RM Auctions on October 27th at London’s Stoke Park Club. In the movies, Stoke Park was the scene of the first confrontation between James Bond and Mr. Goldfinger.

Oh, and here’s a tantalizing tidbit - the other Goldfinger/Thunderball car, the DB4, was stolen in 1997 and is still missing. So hey, if you miss out on the DB5, there’s still a chance...

Biographical information via Motor Trend

compositiowithofthe water

2010-08-17T02:43:00.000-07:00

Most people living in the United States assume they will have plenty of clean, safe water for drinking, that crops and gardens can be regularly irrigated, and that sewage will be taken care of by their local treatment plant. In many parts of the world, however, the availability of water for personal and public use cannot be taken for granted. In fact, according to the World Health Organization (WHO), 42% of the population around the world—2.6 billion people—did not have access to safe water in 2002 (http://www.who.int/water_sanitation_health/publications/facts2004/en/index.html, November 2004). WHO estimates that as many as 300 million people annually become ill with or die from waterborne diseases.

Water is vital to human survival. Although people can survive for about a month without food, without water they would die in about a week. Water is the most common substance on earth. It covers three-fourths of the earth's surface and makes up 65% of the adult human body, including 90% of its blood and 75% of its brain. Water is the main ingredient in most of the fruits, vegetables, and meats that people eat. According to the U.S. Environmental Protection Agency (EPA), water makes up about 75% of a chicken, 80% of a pineapple, 80% of an ear of corn, and 95% of a tomato. Growing enough food to produce an adequate diet for a human being for one year requires about 300 tons of water—nearly a ton (2,000 pounds) a day.

While essential to human existence, water can cause severe damage and destruction. It is terror to the swimmer caught up in a current. It rusts cars and rots the foundations of houses. Water in the form of hailstones destroys crops, and in winter ice coats roads and causes auto accidents. Too much water becomes a flood that destroys homes and people. Too little water is a drought that causes living things to wither and, eventually, die. Water can carry disease; in developing countries waterborne diseases account for over three-fourths of all illnesses and many deaths.

Read more: What Is Water? - Chemical Composition, Earth Mover, Hydrologic Cycle, Freshwater, Sometimes It Rains; Sometimes It Doesn't - People, Human, Die, Crops, According, and Destroys http://www.libraryindex.com/pages/326/What-Water.html#ixzz0wr4Iqvje

sunlightinthethe earth

2010-08-17T02:37:00.000-07:00

Sunlight is absorbed by chlorophyll molecule and then transfer to photo system chlorophyll molecule.Then they are excited and release electrons. These electrons are transferred through different electron carrier and then at last produce ATP. If sunlight is unavailable,electrons wont be released and thus no photosynthesis. It also help in the photolysis of water that means cleavage of water and produce oxygen.

meaning of the compuetr

2010-08-17T02:17:00.000-07:00

A computer is a programmable machine that receives input, stores and manipulates data//information, and provides output in a useful format.

While a computer can, in theory, be made out of almost anything (see misconceptions section), and mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945). Originally, they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).[1] Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space.[2] Simple computers are small enough to fit into mobile devices, and can be powered by a small battery. Personal computers in their various forms are icons of the Information Age and are what most people think of as "computers". However, the embedded computers found in many devices from MP3 players to fighter aircraft and from toys to industrial robots are the most numerous.

type of camera and developing its

2010-08-17T02:13:00.000-07:00

There are many types of cameras. Almost all of them can be classified according to the following features:

* the sensor: nature (digital, 35mm film, 120 film, APS film, other rollfilm, cut film...) and size (24×36mm, 6×6cm...);
* the viewing system (external finder, electronic finder, LCD screen, single lens reflex, twin lens reflex...);
* the rigidity of the body (rigid, swivelling lens, telescopic tube, folding, monorail...);
* the focusing system (autofocus, rangefinder focusing, manual reflex focusing, guess focusing, ground glass back...);
* the lens attachment (interchangeable lens, non interchangeable zoom lens, fixed lens);
* the metering system: metering sensor and metering modes (programmed, speed-priority, aperture-priority, manual).

The features that will most determine the aspect of the camera are the viewing system and the rigidity. Once they are known, the general shape of the body is usually quite predictable.

The size of the sensor matters for the size of the camera and for the end result, while its nature has an incidence on the internal construction: a film camera usually needs place for the supply and take up spools, except for the cameras using cut film or plate film.

The focusing system and metering system will mostly influence how you will use the camera, but has few impact on its shape.

Unusual combinations of these features have existed, for example folding TLRs, subminiature SLRs and so on. However not every combination does make sense. For example an subminiature folding autofocus TLR is not theoretically impossible, but unlikely to ever exist.
[edit]
Common camera types

Below is a table with common camera types and the features that distinguish them.
sensor viewing system rigidity focusing system lens metering system example
nature size
SLR any reflex finder through the taking lens usually rigid manual reflex focusing or autofocus usually interchangeable any 45501196_7031279e86_t.jpg
TLR analog any reflex finder through a second lens usually rigid manual reflex focusing usually fixed manual exposure or no meter at all 20742380_bffd24b768_t.jpg
point-and-shoot any up to 4.5×6cm optical finder or LCD screen rigid or swivelling autofocus or fixed focusing non interchangeable (fixed or zoom) automatic exposure or no exposure control (single shutter speed) 22827039_941d3ed32b_t.jpg
rangefinder any optical finder with superimposed or separate rangefinder rigid or folding manual rangefinder focusing fixed or interchangeable (no zoom) any 44707155_4b06cde358_t.jpg
viewfinder analog any in- or external finder or ground glass back rigid or telescopic distance symbols or no focusing aid usually fixed any 20759011_434e5266cd_t_d.jpg
box analog any internal reflecting type finder or frame finder or telescopic optical finder or ground glass back rigid ground glass back made as sliding box, ground glass with focusable lens, or no focusing aid fixed none 271771351_aee575cbf5_t_d.jpg
folding analog any reflecting type finder or internal optical finder or ground glass back or frame finder folding rangefinder, ground glass back or no focusing aid fixed or interchangeable (no zoom) any 189875584_cd630d8772_t_d.jpg
subminiature any smaller than 18×24mm any any any any any 46709161_ada6eb2533_t_d.jpg
view camera any ground glass back bellows and rails ground glass back interchangeable none

308183510_efe317ec69_t.jpg
pinhole camera any any any any pinhole "lens" none 341355333_04987ebd9f_t.jpg
Retrieved from "http://www.camerapedia.org/wiki/Camera_types"

Category: Camera architecture

meaning of the science

2010-08-10T03:33:00.001-07:00

Science (from Latin: scientia, meaning "knowledge") is a systematic enterprise of gathering knowledge about the world and organizing and condensing that knowledge into testable laws and theories.[1] As knowledge has increased, some methods have proved more reliable than others, and today the scientific method is the standard for science. It includes the use of careful observation, experimentation, measurement, mathematics, and replication — to be considered a science, a body of knowledge must stand up to repeated testing by independent observers. The use of the scientific method to make new discoveries is called scientific research, and the people who carry out this research are called scientists.[2][3] This article focuses on science in the more restricted sense, what is sometimes called experimental science. Applied science, or engineering, is the practical application of scientific knowledge.

many type of man in the world

2010-08-10T03:26:00.000-07:00

This page is dedicated to Robert Benchley’s Law of Distinction, namely, that “There are two kinds of people in the world, those who believe there are two kinds of people in the world and those who don’t.”

Purpose: To provide a completist-like scrapbook for this oft-quoted expression of duality.

Methodology: This page is periodically updated with new “there are two kinds of people” statements. Where a statement is attributed source, it’s shown in quotations. Some of the statements are clustered by themes, but mostly, it’s a random assortment. The page also includes sayings that deviate from the strict “there are two types of people” formula, in order to keep things interesting.
There are two kinds of people in the world: Generalists and Specialists.

There are two kinds of people in the world: Those who make things complicated, and those who make things simple.

“There are two kinds of people in the world, those with loaded guns, and those who dig. You dig.” - Clint Eastwood, 1966, “The Good, The Bad and The Ugly” (Il Buono, il Brutto, il Cattivo)

There are two types of vessels on the sea - submarines and targets.

“There are two kinds of people in the world – those who walk into a room and say, ‘There you are!’ – and those who say, ‘Here I am!’ ” - Abigail Van Buren

“There are basically two types of people. People who accomplish things, and people who claim to have accomplished things. The first group is less crowded.” – Mark Twain

Mark Twain was the master of aphorisms, especially those with dualistic structures — quite appropriate given his pen name (which was actually based on a nautical term, but hey, it’s a nice coincidence). Hence he gets extra coverage on this page.

“There are two types of speakers: those that are nervous and those that are liars.” -Mark Twain

Recursive Duality“There are two kinds of fools. One says, ‘This is old, therefore it is good.” The other says, ‘This is new, therefore it is better.’ Let us be thankful for the fools. But for them, the rest of us could not succeed.” - Mark Twain

“There are two times in a man’s life when he should not speculate: when he can’t afford it, and when he can.” - Mark Twain

There are two kinds of poets: the ones who tell the stories, and the ones about whom the stories get told.

“For my grandfather, there were two kinds of people in the world: Those who agreed with him, and those who hadn’t yet agreed with him.” - B. Spira

There are 10 kinds of people in the world: Those who understand binary and those who don’t.

“There are two kinds of people in the world: the Givers and the Takers. The difference between the two is that the Takers eat well, and the Givers sleep well at night.” - Joy Mills

Related Meme: “The difference between commercial and residential landlords is that commercial landlords eat better, while residential landlords sleep better.” – heard from LL, attributed to family business lore

There are two kinds of people in the world: Pessimists and Optimists.

Related Meme: ”An Optimist Sees the Glass as Half-Full, A Pessimist Sees the World as Half-Empty.” I once met a person who always saw the glass as completely full, even though it wasn’t. On the flipside, I also knew a person who saw the glass as half-empty, dirty, filled with germs, possibly made from contaminated lead glass from China, etc. etc.. I’ve also heard this one: ”The Engineer sees the Glass as Twice As Big As It Needs to Be.” The way I see it: “The entrepreneur sees the glass as undervalued by half its potential.”

There are two kinds of people in the world: Those who follow the rules and those who make the rules.

There Are Two Kinds of Jedi…

“There are two ways of meeting difficulties: You alter the difficulties or you alter yourself to meet them.” – Phyllis Bottome

“The world is divided into two types of people: those who love to talk, and those who hate to listen.” - James Thorpe

There are two kinds of people in the world: Players and Haters.

“Capitalism is a pimp-hoe system. You are either a pimp, or you are a hoe.”- KRS-ONE

There are two kinds of people in the world: Me and You.

“Mankind is divided into two great classes: hosts and guests.” - Max Beerbohm, Hosts and Guests

“There are two kinds of people who never amount to much: those who cannot do what they are told, and those who can do nothing else.” - Cyrus Curtis, 1850 – 1933

“There are two kinds of people in this world, Chris. There are bullies and there are nerds. ..and there are hot Asian chicks.” - Peter Griffin, Family Guy

There are three kinds of people in the world: Those who know math and those who don’t.

“When it comes to the future, there are three kinds of people: those who let it happen, those who make it happen, and those who wonder what happened.” - John M. Richardson, Jr

“There are three classes of intellects: one which comprehends by itself; another which appreciates what others comprehend; and a third which neither comprehends by itself nor by the showing of others; the first is the most excellent, the second is good, the third is useless.” - Niccolo Machiavelli, The Prince, 1532 AD

“There are, broadly speaking, two kinds of workers in the world, the people who do all the work, and the people who think they do all the work. The latter class is generally the busiest, the former never have time to be busy.” - Stella Benson

“There are three kinds of lies: lies, damned lies, and statistics.” – Walter Bagehot

“There are two kinds of statistics: the kind you look up, and the kind you make up.” - Rex Stout

“There are two kinds of failures: those who thought and never did, and those who did and never thought.” - Laurence J. Peter

jpmorgan.jpg“A man always has two reasons for doing anything: a good reason and the real reason.” - J.P. Morgan

“There are two kinds of light – the glow that illuminates, and the glare that obscures.” – James Thurber

“There are two great energies of change in human affairs: fear and aspiration.” - Peter Senge, The Fifth Discipline

”There are in fact two things, science and opinion; the former begets knowledge, the latter ignorance.” – Hippocrates

“All books are divisible into two classes: the books of the hour, and the books of all time.”-John Ruslin, Of Kings’ Treasuries, 1865

“My theory is that when it comes to important subjects, there’s only two ways a person can answer. For example, there’s two kinds of people in this world, Elvis people and Beatles people. Now Beatles people can like Elvis. And Elvis people can like the Beatles. But nobody likes them both equally. Somewhere you have to make a choice. And that choice tells me who you are.” - Mia Wallace (Uma Thurman), Pulp Fiction (deleted scene)

“There are two kinds of people in this world: Michael Jackson fans and losers.” - Seth Green
FURTHER READING:
TV Tropes has a nice analysis/compendium of this meme in popular culture: http://tvtropes.org/pmwiki/pmwiki.php/Main/ThereAreTwoKindsOfPeopleInTheWorld )

Automobile

2010-08-10T03:24:00.000-07:00

An automobile, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed principally for the transport of people rather than goods.[1] However, the term automobile is far from precise, because there are many types of vehicles that do similar tasks.

There are approximately 600 million passenger cars worldwide (roughly one car per eleven people).[2][3] Around the world, there were about 806 million cars and light trucks on the road in 2007; they burn over 1 billion m³ (260 billion US gallons) of petrol/gasoline and diesel fuel yearly. The numbers are increasing rapidly, especially in China and India.

Physician in usa with diffrent countries

2010-08-10T03:22:00.000-07:00

A physician—also known as doctor of medicine, medical doctor, or simply doctor—practices the ancient profession of medicine, which is concerned with maintaining or restoring human health through the study, diagnosis, and treatment of disease or injury. This properly requires both a detailed knowledge of the academic disciplines (such as anatomy and physiology) underlying diseases and their treatment—the science of medicine—and also a decent competence in its applied practice—the art or craft of medicine.

Both the role of the physician and the meaning of the word itself vary significantly around the world, but as generally understood, the ethics of medicine require that physicians show consideration, compassion and benevolence for their patients.

Life is short, and Art long;
the crisis fleeting; experience perilous, and decision difficult.
The physician must not only be prepared to do what is right himself,
but also to make the patient, the attendants, and externals cooperate.
—First aphorism of Hippocrates, c. 400 BCE, from the Hippocratic Corpus

Aviator and its opertunity and adventure

2010-08-10T03:21:00.000-07:00

An aviator is a person who flies or travels via aircraft for pleasure or as a profession. The first recorded use of the term (aviateur in French) was in 1887 as a variation of 'aviation', from the Latin 'avis' (meaning bird), coined 1863 by G. de la Landelle in "Aviation ou Navigation Aérienne" ('Aviation or Air Navigation'. The term aviatrix (aviatrice in French) is used for a female aviator.

The term is often applied to pilots, but is often extended to include air navigators, bombardiers, Weapon Systems Officers, and electronic warfare Officers. This should not be confused with the term naval aviator, which refers crew members in the United States Navy, Marines and Coast Guard.

There are also such minor aviation characters as wing-walkers who take part in aerobatic display sequences.

The term aviator (as opposed to "pilot" or other terms) was used more in the early days of aviation, before anyone had ever seen an airplane fly, and it had connotations of bravery and adventure. For example, the editors at the Dayton Herald, in an article of December 18, 1903 described the Wright Brothers' first airplane thus: "The weight, including the body of the aviator, is slightly over 700 pounds".

To ensure the safety of people in the air as well as on the ground, it soon became a requirement for an aircraft to be under the operational control of a properly trained, certified and current pilot at all times, who is responsible for the safe and legal completion of the flight. The first certificate was delivered by the Aero Club de France to Louis Blériot in 1908, followed by Glenn Curtiss, Leon Delagrange, and Robert Esnault-Pelterie. The absolute authority given to the Pilot in Command is derived from that of a ship's captain.[citation needed]
Beverly Lynn Burns, first woman in the world to captain the Boeing 747 airliner

In recognition of the aviators' qualifications and responsibilities, most militaries and many airlines around the world award aviator badges to their pilots as well as other air crews.

Hotel and its condition of world and sciencefic reasons

2010-08-10T03:19:00.000-07:00

A hotel is an establishment that provides paid lodging on a short-term basis. The provision of basic accommodation, in times past, consisting only of a room with a bed, a cupboard, a small table and a washstand has largely been replaced by rooms with modern facilities, including en-suite bathrooms and air conditioning or climate control. Additional common features found in hotel rooms are a telephone, an alarm clock, a television, and Internet connectivity; snack foods and drinks may be supplied in a mini-bar, and facilities for making hot drinks. Larger hotels may provide a number of additional guest facilities such as a restaurant, a swimming pool or childcare, and have conference and social function services. Hotel rooms are usually numbered (or named in some smaller hotels and B&Bs) to allow guests to identify their room.

Some hotels offer meals as part of a room and board arrangement. In the United Kingdom, a hotel is required by law to serve food and drinks to all guests within certain stated hours; to avoid this requirement it is not uncommon to come across private hotels which are not subject to this requirement.[citation needed] In Japan, capsule hotels provide a minimized amount of room space and shared facilities.

In the United Kingdom, Australia, Canada and Ireland (and rarely in some parts of the United States), the word may also refer to a pub or bar and might not offer accommodation.[citation needed] In India and Bangladesh, the word may also refer to a restaurant

Airplane! or condition of nepal

2010-08-10T03:18:00.000-07:00

Airplane! is a 1980 American satirical comedy film directed and written by David Zucker, Jim Abrahams, and Jerry Zucker and released by Paramount Pictures. It stars Robert Hays and Julie Hagerty and features Leslie Nielsen, Robert Stack, Lloyd Bridges, Peter Graves, Kareem Abdul-Jabbar, and Lorna Patterson. The film is a spoof of the disaster film genre, and a satirical remake of the 1957 Paramount film Zero Hour!.[2] In Australia and New Zealand the film is titled Flying High!

Airplane! was a huge financial success, grossing over US$83 million in North America alone, against a budget of just $3.5 million.[1] The film's creators received the Writers Guild of America Award for Best Adapted Comedy, and nominations for the Golden Globe Award for Best Motion Picture – Musical or Comedy and a BAFTA Award for Best Screenplay.[4]

In the years since its release, Airplane!'s reputation has grown substantially beyond its modest comic intentions. The film was voted the 10th-funniest American comedy on AFI's 100 Years... 100 Laughs list in 2000, and ranked 6th on Bravo's 100 Funniest Movies. In a major 2007 survey by Channel 4 in the United Kingdom, it was judged the second greatest comedy film of all time.

In 2008, Airplane! was selected by Empire Magazine as the 368th in The 500 Greatest Movies of All Time.

Diane Dimond

2010-08-10T03:15:00.000-07:00

Dimond began her career at KOB Radio in Albuquerque, New Mexico. In 1976, she moved to Washington D.C where she anchored newscasts for NPR's All Things Considered. From 1980 to 1986, Dimond was a congressional and political correspondent for the RKO Radio Networks. In 1986, she moved to New York where she served as a TV reporter for WCBS-TV.[1]

In 1990, Dimond became a correspondent for both Hard Copy and Extra before moving to CNBC in 1998 to co-host the news-related program Upfront Tonight with Geraldo Rivera. Following its cancellation in 2000, Dimond signed on with MSNBC as a reporter and host. After a brief stint with the Fox News Channel, she joined Court TV as a sometime anchor and regular reporter in 2003, gaining notoriety for her work as a correspondent during the Michael Jackson child molestation trial. During the trial, Dimond made frequent appearances on NBC's Today Show, Larry King Live, Inside Edition, the Don Imus radio program and many other outlets giving updates on the proceedings.

Dimond, during her stint at Hard Copy, broke the news about accusations of an inappropriate relationship between Jackson and another young boy. Jackson eventually settled that case out of court for reportedly millions of dollars. The settlement, as Dimond has noted, increased her interest in the pop star, and when he was charged with child molestation in late 2003, she covered the story. Dimond's coverage of Jackson since that time, to this day, has drawn considerable controversy.

In 2005, Court TV, citing financial strains from expanded trial coverage on both the Scott Peterson murder case and the Michael Jackson case, decided not to renew Dimond's contract and her entire investigative unit was disbanded. After leaving Court TV, Dimond's book on her investigation of Jackson was published by Simon and Shuster's Atria books entitled, Be Careful Who You Love - Inside the Michael Jackson Case. Following Jackson's death in 2009, Dimond became a daily contributor on Entertainment Tonight for its "Michael Jackson Investigation."

Dimond can be heard, along with mediator Lee Jay Berman and comedian Louise Palanker, on Talk It Over, a call-in program that helps listeners with personal conflicts through the use of mediation tools, common sense and humor. She is also a regular contributor to Women in Crime Ink.

ROTARY PUMP

2010-04-10T22:25:00.000-07:00

THIS IS FOR BEST PUMP WHICH HAS BEEN INVESTED FOR PHODUCING BACCUM IT IS WHICH IN ACTION AND CAN EXHAUST LATGE BOLUMES IN A SMALL TIME IT IS OPERATED BY MEAND OF AN ELECTRIC MOTOR AND DOES NOT REQUIRE MUCH ATTENTION IT IS WIDELY USED FOR PRODUCING VAMUUM IN ELECTRIC LAMPS RADIO VALES X RAY TUBES ANS IN LABORATORIES FOR PRODUCINGV CCUMN FOR EXPERIMENTAL PURPOSES IT CONFISS OF ECCENTICALLY MOUVTED ROTATING CYLINDER CALLED THE ROTAR THES IS MOUNYED ON A SHAFT WHICH IS ROTATED AT A HIGH SPEED BY AN ELECTRIC MOTOR THE ECCENTRIC ROTAR RATATES INSIDE A CYLINDRECAL SPACE IN A CETOR CASING.

VARIABLE IMMERSION TYPE HYDROMETERS

2010-04-10T22:14:00.000-07:00

such a hydrometer sinks to different marks in diff rent liquid ans always displace of a hollow cylindrical glass tube G its one and carries on small bulb B while the after ens carries on elongated glass stem s in order that hydrometer may float on in the liquid the bulb is filled with lead shots or Mercury further inside the steam a parer small marked different far different types of hydrometer is placed.

SUBMARINE

2010-04-10T22:05:00.000-07:00

SUBMARINES- sea vessels which can float and move either on the surface of the sea is underneath the watter as may be necessary A submarine has tanks called ballast tank in the front the middle and the rear part when these tanks are filled with sea water the total weight of the submarene increases making it sink below the surface of sea.

ANEROID BAROMETER

2010-04-10T20:59:00.000-07:00

An aneroid baromerer is a barometer in which no liquid used it confisls of a boxof thin carrugated metal from which most of air has been extracted when the air pressure increase the sides are presed closer together and where the pressure secreases the spring s forces the sides further apart by meand of a system of leveal shown in the figher these changes are made to move a pointe which moves over a dial the dial is calibrated by comparison with a merchcry

EXHAUST PUM

2010-04-10T20:50:00.000-07:00

such a pump was invested by von G verick in Germany during 1650. he uded it for producing vacuum and demonstrating the effects of atmospheres presses as which the magdevurg is gemispheres the pump consist of a metalic cylindrical barrel in which a piston can se moved in and out by mend of a piston provided with handle there is a valve v1 at the battom of the cylindrical barrel and another valve v2 in the piston.