<?xml version='1.0' encoding='UTF-8'?><?xml-stylesheet href="http://www.blogger.com/styles/atom.css" type="text/css"?><feed xmlns='http://www.w3.org/2005/Atom' xmlns:openSearch='http://a9.com/-/spec/opensearchrss/1.0/' xmlns:blogger='http://schemas.google.com/blogger/2008' xmlns:georss='http://www.georss.org/georss' xmlns:gd="http://schemas.google.com/g/2005" xmlns:thr='http://purl.org/syndication/thread/1.0'><id>tag:blogger.com,1999:blog-4532048719556404954</id><updated>2024-11-08T07:36:36.216-08:00</updated><title type='text'>Mecânica do Universo</title><subtitle type='html'>Do céu sobre nós, à nós sobre o céu.</subtitle><link rel='http://schemas.google.com/g/2005#feed' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/posts/default'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default?redirect=false'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/'/><link rel='hub' href='http://pubsubhubbub.appspot.com/'/><link rel='next' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default?start-index=26&amp;max-results=25&amp;redirect=false'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><generator version='7.00' uri='http://www.blogger.com'>Blogger</generator><openSearch:totalResults>246</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>25</openSearch:itemsPerPage><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-8404951717281849524</id><published>2014-12-16T17:25:00.002-08:00</published><updated>2014-12-16T17:25:40.825-08:00</updated><title type='text'>Robô Curiosity detecta emissão de gás metano em Marte</title><content type='html'>&lt;h3 style=&quot;background: rgb(255, 255, 255); font-family: arial, helvetica, freesans, sans-serif; font-weight: normal; letter-spacing: -0.01em; line-height: 1.2em; margin: 0px; outline: 0px; padding: 0.3em 0px 0px;&quot;&gt;
&lt;span style=&quot;color: #929292;&quot;&gt;&amp;nbsp; &amp;nbsp; &lt;/span&gt;Origem do gás no planeta vermelho ainda é desconhecida.&lt;br /&gt;&amp;nbsp; &amp;nbsp; Na Terra, o metano pode ser produzido por organismos vivos.&lt;/h3&gt;
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&lt;tr&gt;&lt;td style=&quot;text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9ZQnouJ5Xnr01H4JjIdSn6BcW9vhih4bp87MQnu3OQWH40qZHTmt78q8KgQtAKjRRw5W8CsZ1cdPIYIydvi9GWwE6V9jxD1qDTv5fqKXuyNvHr4_v3XslYz1c6-XkWWHlPKz5xSTfUwel/s1600/rock.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: auto; margin-right: auto;&quot;&gt;&lt;img border=&quot;0&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9ZQnouJ5Xnr01H4JjIdSn6BcW9vhih4bp87MQnu3OQWH40qZHTmt78q8KgQtAKjRRw5W8CsZ1cdPIYIydvi9GWwE6V9jxD1qDTv5fqKXuyNvHr4_v3XslYz1c6-XkWWHlPKz5xSTfUwel/s1600/rock.jpg&quot; height=&quot;475&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;tr-caption&quot; style=&quot;text-align: center;&quot;&gt;&lt;span style=&quot;background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; display: block; font-family: arial, helvetica, freesans, sans-serif; font-size: 12px; margin: 0px; outline: 0px; padding: 0.67em; text-align: left;&quot;&gt;&lt;span style=&quot;background-color: white;&quot;&gt;&lt;b&gt;Perfuração feita pelo Curiosity em rocha permitiu encontrar moléculas orgânicas (Foto: JPL/NASA)&lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; display: block; font-family: arial, helvetica, freesans, sans-serif; font-size: 12px; margin: 0px; outline: 0px; padding: 0.67em; text-align: left;&quot;&gt;&lt;span style=&quot;background-color: white;&quot;&gt;&lt;b&gt;&lt;br /&gt;&lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; display: block; font-family: arial, helvetica, freesans, sans-serif; margin: 0px; outline: 0px; padding: 0.67em; text-align: left;&quot;&gt;&lt;div style=&quot;background-attachment: initial; background-clip: initial; background-color: white; background-image: initial; background-origin: initial; background-position: initial; background-repeat: initial; background-size: initial; color: #333333; font-size: 1.26em; letter-spacing: -0.02em; line-height: 1.45em; outline: 0px; padding: 0px 0px 1.5em;&quot;&gt;
O robô americano Curiosity, que explora Marte, detectou picos de emissões de metano no planeta, disseram nesta terça-feira (16) os cientistas da missão. Eles não conseguiram ainda, no entanto, identificar a origem deste gás, que na Terra é gerado por organismos vivos e decomposição de matéria orgânica.&lt;/div&gt;
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O gás &quot;registra picos de aumento de 10 vezes, ou até mais em determinadas ocasiões ao longo de 60 dias marcianos&quot;, informaram os autores do estudo, entre eles Christ Webster, do Laboratório de Propulsão a Jato da Nasa.&lt;/div&gt;
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&quot;Esse aumento temporário -- que sobe rápido e depois cai -- nos diz que deve haver alguma fonte relativamente localizada&quot;, disse em nota o pesquisador Sushil Atreya, da Universidade de Michigan. &quot;Há muitas fontes possíveis, biológicas e não-biológicas, como a interação de água com rochas&quot;, completou.&lt;/div&gt;
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Os resultados das observações foram publicados na edição de segunda-feira da revista &quot;Science&quot; e, segundo informou a agência AFP, foram objeto de uma apresentação na conferência anual do sindicato de geofísicos americanos, reunidos em San Francisco.&lt;/div&gt;
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O Curiosity também detectou diferentes moléculas orgânicas no pó de uma rocha denominada Cumberland que foi perfurada pelo robô. Foi a primeira detecção definitiva de partículas orgânicas em materiais da superfície de Marte. Essas moléculas orgânicas marcianas podem ter se formado em Marte ou ter chegado ali em meteoros.&lt;/div&gt;
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As moléculas orgânicas, que contêm carbono e hidrogênio, são os &quot;blocos de construção&quot; da vida, embora possam existir sem a presença de vida. A própria nasa destaca que as análises de amostras de atmosfera e de pó de rocha apresentadas não revelam se Marte já abrigou seres vivos em algum momento. &quot;Mas elas jogam luz sobre um planeta Marte moderno quimicamente ativo e em condições favoráveis para a vida no planeta no passado&quot;, diz a agência espacial americana.&lt;/div&gt;
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&lt;span style=&quot;font-size: x-small;&quot;&gt;Fonte:&lt;/span&gt;&lt;span style=&quot;color: orange; font-size: x-small;&quot;&gt;&amp;nbsp;http://www.clarin.com/sociedad/Marte-astrobiologia-ciencia-Curiosity_0_1267673650.html&lt;/span&gt;&lt;/div&gt;
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</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/8404951717281849524/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2014/12/robo-curiosity-detecta-emissao-de-gas.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/8404951717281849524'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/8404951717281849524'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2014/12/robo-curiosity-detecta-emissao-de-gas.html' title='Robô Curiosity detecta emissão de gás metano em Marte'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9ZQnouJ5Xnr01H4JjIdSn6BcW9vhih4bp87MQnu3OQWH40qZHTmt78q8KgQtAKjRRw5W8CsZ1cdPIYIydvi9GWwE6V9jxD1qDTv5fqKXuyNvHr4_v3XslYz1c6-XkWWHlPKz5xSTfUwel/s72-c/rock.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-8351105385565786420</id><published>2014-05-08T08:02:00.000-07:00</published><updated>2014-05-08T08:02:28.027-07:00</updated><title type='text'>NASA pode enviar plantas vivas para Marte em 2020</title><content type='html'>&lt;h1 class=&quot;contentheading&quot; style=&quot;background-color: white; border: 0px; font-family: Georgia, Cambria, &#39;Times New Roman&#39;, Times, serif; line-height: 1.2; margin: 0px; padding: 0px 0px 5px;&quot;&gt;
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Dentro de uma década poderá haver vida em marte. Não por alienígenas ou até mesmo humanos, mas plantas. Isso porque a NASA tem planos para enviar uma nova sonda para o planeta vermelho, e, com ela, deverão enviar vida vegetal para estudos.&lt;/div&gt;
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Com o projeto, os pesquisadores da Ames Research Center propuseram o MPX (Experimento com plantas em Marte), que tenta entender os efeitos da gravidade reduzida e dos altos níveis de radiação.&lt;/div&gt;
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Para isso, os cientistas não vão plantar os vegetais por lá. O que será feito é adaptar um CubeSat (pequeno satélite em forma de cubo) e transformá-lo em uma estufa, preenchida com ar terrestre e sementes de Arabidopsis, uma planta da família da mostarda.&lt;/div&gt;
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A caixa ficaria sobre a sonda, que também seria responsável por dar a água necessária para a sobrevivência da planta.&lt;/div&gt;
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&amp;nbsp;O teste é importantíssimo para definir se um dia será possível colonizar Marte. “Para ter uma base durável e sustentável em Marte, é necessário primeiro estabelecer se as plantas conseguem crescer por lá”, diz Heather Smith, principal pesquisadora do MPX. Segundo ela, em caso de sucesso, seria possível criar uma base sustentável.&lt;/div&gt;
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No entanto, a proposta ainda não passa disso, já que há um número limitado de instrumentos que podem ser enviados para Marte junto com a próxima sonda. Por enquanto, há 58 propostas na fila de aprovação e, considerando que apenas 10 delas foram lançadas com a Curiosity, que já está no planeta, é bastante provável que muitas destas sejam rejeitadas.&lt;/div&gt;
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A previsão é que a próxima sonda seja enviada para o planeta vermelho em 2020, com previsão de chegada para 2021.&lt;/div&gt;
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&lt;span style=&quot;font-size: xx-small;&quot;&gt;&lt;span style=&quot;color: #333333;&quot;&gt;Fonte:&lt;/span&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://www.circuitomt.com.br/editorias/mundo-tecnologico/43207-nasa-pode-enviar-plantas-vivas-para-marte-em-2020.html&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/h1&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/8351105385565786420/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2014/05/nasa-pode-enviar-plantas-vivas-para.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/8351105385565786420'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/8351105385565786420'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2014/05/nasa-pode-enviar-plantas-vivas-para.html' title='NASA pode enviar plantas vivas para Marte em 2020'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilL4yek5f2SrPxxSL6moRvB181R9cK195J8DPQXq9P7PRgT__p98p7MYHjAAu6TE_1WzPhuAff3zPsvY7a4KqOmCqJfARpi7UcwAJxrVxD-wz4by-whkFBAASZ75Ur-8KqeBTVsI3PlLVB/s72-c/nz9h7jezoj1e7dgyueei.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-6554973512516480396</id><published>2012-12-25T20:20:00.002-08:00</published><updated>2012-12-25T20:20:26.353-08:00</updated><title type='text'>Imagem mostra o céu estrelado sobre o Vale Yosemite</title><content type='html'>&lt;img alt=&quot;YosemiteWinterNightPacholka950&quot; height=&quot;372&quot; src=&quot;http://blog.cienctec.com.br/wp-content/uploads/2012/12/YosemiteWinterNightPacholka950.jpg&quot; width=&quot;640&quot; /&gt;&lt;br /&gt;
&lt;span style=&quot;background-color: white; color: #292a30; font-family: Helvetica, Arial, SansSerif; font-size: 15px; line-height: 22px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;
&lt;span style=&quot;background-color: white; color: #292a30; font-family: Helvetica, Arial, SansSerif; font-size: 15px; line-height: 22px;&quot;&gt;A bela paisagem noturna acima mostra de forma espetacular a banda estrelada da Via Láctea nascendo sobre o Vale de Yosemite, na Cadeia de Sierra Nevada. O planeta Júpiter é o farol celeste mais brilhante observado na cena invernal acima. Localizando-se nessa época do ano quase que na direção totalmente oposta ao Sol em relação à Terra, na constelação de Taurus, o planeta se junta a amarelada estrela Aldebaran e ao aglomerado estelar das Hyades. Abaixo desse trio, a constelação de Orion aparece de lado na face das montanhas. E oposta a ela as estrelas gêmeas da constelação Gemini, nasce através da Via Láctea. Enquanto essa bela noite de inverno começa todos seguem Auriga, o Cocheiro, e sua estrela alpha, Capella, que aparece perto da parte superior da imagem.&lt;/span&gt;&lt;br /&gt;
&lt;span style=&quot;background-color: white; color: #292a30; font-family: Helvetica, Arial, SansSerif; font-size: 15px; line-height: 22px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;
&lt;span style=&quot;background-color: white; line-height: 22px;&quot;&gt;&lt;span style=&quot;font-family: Helvetica, Arial, SansSerif; font-size: x-small;&quot;&gt;&lt;span style=&quot;color: #292a30;&quot;&gt;Fonte: &lt;/span&gt;&lt;a href=&quot;http://blog.cienctec.com.br/imagens/bela-imagem-mostra-o-ceu-estrelado-sobre-o-vale-yosemite/&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://blog.cienctec.com.br/imagens/bela-imagem-mostra-o-ceu-estrelado-sobre-o-vale-yosemite/&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/6554973512516480396/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/imagem-mostra-o-ceu-estrelado-sobre-o.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6554973512516480396'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6554973512516480396'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/imagem-mostra-o-ceu-estrelado-sobre-o.html' title='Imagem mostra o céu estrelado sobre o Vale Yosemite'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-2502776985285281847</id><published>2012-12-19T00:55:00.000-08:00</published><updated>2012-12-19T00:55:24.255-08:00</updated><title type='text'>Estrutura geológica estranha em Marte</title><content type='html'>&lt;br /&gt;
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&lt;img alt=&quot;estranha_estrutura_marte&quot; height=&quot;571&quot; src=&quot;http://blog.cienctec.com.br/wp-content/uploads/2012/12/estranha_estrutura_marte.jpg&quot; width=&quot;640&quot; /&gt;&lt;/div&gt;
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A imagem acima foi feita pela câmera Mastcam direita do jipe robô Curiosity que está explorando o planeta Marte. A imagem mostra uma estrutura geológica estranha, algo parecido com uma bolha que explodiu na superfície do planeta vermelho. O Curiosity continua trabalhando perfeitamente e se prepara para realizar a primeira perfuração do solo marciano para estudar mais amostras de solo. Enquanto isso, feições geológicas intrigantes como essa vão sendo observadas por suas câmeras. A imagem acima foi feita no dia 9 de Dezembro de 2012, equivalente ao Sol 122, ou seja, o centésimo vigésimo segundo dia de trabalho do Curiosity em Marte, às 08:48:18, hora de Brasília.&lt;/div&gt;
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&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Fonte:&lt;/span&gt;&lt;span style=&quot;border: 0px; color: red; font-family: inherit; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;a href=&quot;http://mars.jpl.nasa.gov/msl/multimedia/raw/?rawid=0122MR0765000000E2_DXXX&amp;amp;s=122&quot; style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://mars.jpl.nasa.gov/msl/multimedia/raw/?rawid=0122MR0765000000E2_DXXX&amp;amp;s=122&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/2502776985285281847/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/estrutura-geologica-estranha-em-marte.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/2502776985285281847'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/2502776985285281847'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/estrutura-geologica-estranha-em-marte.html' title='Estrutura geológica estranha em Marte'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-8791615185509490184</id><published>2012-12-19T00:49:00.000-08:00</published><updated>2012-12-19T00:49:09.185-08:00</updated><title type='text'>Imagem do Dia: Aurora e Meteoro </title><content type='html'>&lt;br /&gt;
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&lt;a href=&quot;http://blog.cienctec.com.br/imagens/meteoro-e-aurora-uma-combinacao-espetacular/attachment/meteoro_aurora/&quot; rel=&quot;attachment wp-att-37400&quot; style=&quot;border: 0px; font-family: inherit; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;img alt=&quot;meteoro_aurora&quot; class=&quot;aligncenter size-full wp-image-37400&quot; height=&quot;640&quot; src=&quot;http://blog.cienctec.com.br/wp-content/uploads/2012/12/meteoro_aurora.jpg&quot; style=&quot;border: 0px; display: block; font-family: inherit; font-style: inherit; margin: 0px auto; outline: 0px; padding: 0px; vertical-align: baseline;&quot; width=&quot;428&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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A Terra já saiu da corrente de detritos do cometa rochoso 3200 Phaethon, fazendo assim que se chegasse ao fim da chuva anual de meteoros dos Geminídeos. Na noite do pico da chuva, no dia 14 de Dezembro de 2012, os observadores ao redor do mundo chegaram a contar mais de 100 meteoros por hora, sendo muito desses, verdadeiras bolas de fogo, com um brilho maior do que o do planeta Vênus. David Clapp fotografou esse meteoro impressionante sobre as águas geladas de Kirkjufell, na Islândia. Além do meteoro ele também registrou ao mesmo tempo uma bela aparição de aurora boreal. Segundo ele, foi um momento realmente espetacular.&lt;/div&gt;
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Um ponto a ser notado, embora o meteoro pareça estar voando sobre as auroras, é bem mais provável que ele esteja abaixo. Os meteoros Geminídeos queimam a aproximadamente 80 km acima da superfície da Terra, enquanto que as auroras se espalham no céu a uma altura entre 100 e 500 km.&lt;/div&gt;
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&lt;span style=&quot;color: #292a30;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;color: #292a30;&quot;&gt;Veja a galeria completa aqui:&lt;/span&gt;&lt;a href=&quot;http://spaceweather.com/gallery/index.php?title=meteor&amp;amp;title2=geminid&quot; style=&quot;border: 0px; font-family: inherit; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://spaceweather.com/gallery/index.php?title=meteor&amp;amp;title2=geminid&lt;/span&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;/div&gt;
&lt;div style=&quot;border: 0px; margin-bottom: 1em; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;
&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Fonte:&lt;/span&gt;&lt;span style=&quot;border: 0px; color: red; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;span style=&quot;border: 0px; font-family: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;a href=&quot;http://www.spaceweather.com/&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;www.spaceweather.com&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;br /&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/8791615185509490184/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/imagem-do-dia-aurora-e-meteoro.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/8791615185509490184'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/8791615185509490184'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/imagem-do-dia-aurora-e-meteoro.html' title='Imagem do Dia: Aurora e Meteoro '/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-7718672871249536982</id><published>2012-12-14T03:23:00.002-08:00</published><updated>2012-12-14T03:23:58.841-08:00</updated><title type='text'>#Ciencia: Veja o tamanho e peso do cérebro humano em comparação com outros animais</title><content type='html'>&lt;span style=&quot;background-color: white; color: #333333; font-family: Arial, Verdana, sans-serif; font-size: 14px; line-height: 18px;&quot;&gt;O cérebro humano é incrível, e, com certeza, o que mais nos diferencia dos outros animais. Mas não é o maior cérebro do reino animal; animais maiores, como baleias e elefantes, têm cérebros maiores (a baleia- azul, com seus 10 kg de cérebro, tem o maior do reino animal).&lt;/span&gt;&lt;br /&gt;
&lt;span style=&quot;background-color: white; color: #333333; font-family: Arial, Verdana, sans-serif; font-size: 14px; line-height: 18px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;
&lt;br /&gt;
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Porém, o cérebro humano é muito grande quando comparado com o tamanho do nosso corpo. O cérebro humano pesa, em média, 1,5 kg. Em um homem de 80 kg, é quase 2% do seu peso corporal. Já a baleia-azul, com suas 200 toneladas, tem um cérebro que ocupa apenas 0,005% de seu corpo.&lt;/div&gt;
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Mas proporção também não é tudo. Se inteligência dependesse só disso, estaríamos empatados com os ratos, que também têm um cérebro que ocupa 2% de espaço no corpo.&lt;/div&gt;
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A chave é a complexidade desse órgão.&lt;/div&gt;
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A maioria das criaturas vivas possui um sistema nervoso. Em algumas delas, ele é muito simples, como o da anêmona-do-mar, que tem apenas uma pequena rede de células nervosas. Nos insetos, essas células ficam lado a lado para formarem os nervos. Em criaturas mais complexas, forma-se uma coluna que possui um cérebro e uma medula espinal. Entre estes animais, os peixes possuem o cérebro mais simples, não muito maior que seu olho.&lt;/div&gt;
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Quanto mais rugas tem um cérebro, mais neurônios ele tem. O cérebro humano tem mais pregas e rugas do que muitos outros animais. Por exemplo, o cérebro de um esquilo ou de um rato é muito liso comparado com o de um ser humano, por isso não é tão complexo. Alguns animais, como os golfinhos e as baleias, têm cérebros quase tão enrugados quanto os nossos.&lt;/div&gt;
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Conclusão: tamanho e peso não são documento. Rugas podem ser mais decisivas – ainda que não expliquem todos os mistérios da inteligência.&lt;/div&gt;
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Mas, por divertimento, confira o tamanho e o peso médio do cérebro de várias espécies animais:&lt;/div&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhf1mOrLxBZZYdEtrAM0iA9UWF2hICDZeva3Zr_48y7gRa7IiaQMyszt6dQkHtWtktm035PeyaXvvQhTt1ItVBLzrfTDAuesHFaWn0SubPkttrhvQ6gaVzaOB9r5lBGtiap64R9gpcxz8GT/s1600/14451_519579334727496_424223017_n-600x848.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhf1mOrLxBZZYdEtrAM0iA9UWF2hICDZeva3Zr_48y7gRa7IiaQMyszt6dQkHtWtktm035PeyaXvvQhTt1ItVBLzrfTDAuesHFaWn0SubPkttrhvQ6gaVzaOB9r5lBGtiap64R9gpcxz8GT/s1600/14451_519579334727496_424223017_n-600x848.jpg&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;strong style=&quot;background-color: transparent; border: 0px; color: #1c1c1c; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Primatas:&lt;/strong&gt;&lt;/div&gt;
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&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Humano (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Homo sapiens&lt;/em&gt;): 1,176 kg&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Chipanzé (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Pan troglodytes&lt;/em&gt;): 273 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Babuíno (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Papio cynocephalus&lt;/em&gt;): 151 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Mandril (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Mandrillus sphinx&lt;/em&gt;): 123 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Macaco (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Macaca tonkeana&lt;/em&gt;): 110 g&lt;/li&gt;
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&lt;strong style=&quot;background-color: transparent; border: 0px; color: #1c1c1c; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Carnívoros:&lt;/strong&gt;&lt;/div&gt;
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&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Urso (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Ursus arctos&lt;/em&gt;): 289 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Leão (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Panthera leo&lt;/em&gt;): 165 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Guepardo (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Acinonyx jubatus&lt;/em&gt;): 119 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Cão (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Canis familiaris&lt;/em&gt;): 95 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Gato (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Felis catus&lt;/em&gt;): 32 g&lt;/li&gt;
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&lt;strong style=&quot;background-color: transparent; border: 0px; color: #1c1c1c; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Artiodátilos:&lt;/strong&gt;&lt;/div&gt;
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&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Girafa (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Giraffa camelopardalis&lt;/em&gt;): 700 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Cudo, um antílope africano (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Tragelaphus strepsiceros&lt;/em&gt;): 166 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Muflão, carneiro selvagem (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Ovis musimon&lt;/em&gt;): 118 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Cabra do Gerês (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Capra pyrenaica&lt;/em&gt;): 115 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Queixada (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Tayassu pecari&lt;/em&gt;): 41 g&lt;/li&gt;
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&lt;strong style=&quot;background-color: transparent; border: 0px; color: #1c1c1c; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Marsupiais:&lt;/strong&gt;&lt;/div&gt;
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&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Wallaby (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;&lt;a class=&quot;ext-link&quot; href=&quot;https://www.google.com.br/search?hl=pt-BR&amp;amp;safe=off&amp;amp;rlz=1C1SKPH_enBR406BR407&amp;amp;q=Protemnodon+rufogrisea&amp;amp;bav=on.2,or.r_gc.r_pw.r_qf.&amp;amp;bvm=bv.1355272958,d.eWU&amp;amp;bpcl=39942515&amp;amp;biw=1280&amp;amp;bih=632&amp;amp;um=1&amp;amp;ie=UTF-8&amp;amp;tbm=isch&amp;amp;source=og&amp;amp;sa=N&amp;amp;tab=wi&quot; rel=&quot;external nofollow&quot; style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; text-decoration: initial; vertical-align: baseline;&quot; target=&quot;_blank&quot;&gt;Protemnodon rufogrisea&lt;/a&gt;&lt;/em&gt;): 28 g&lt;/li&gt;
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&lt;strong style=&quot;background-color: transparent; border: 0px; color: #1c1c1c; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Lagomorfos:&lt;/strong&gt;&lt;/div&gt;
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&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Coelho (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Oryctolagus cuniculus&lt;/em&gt;): 5,2 g&lt;/li&gt;
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&lt;strong style=&quot;background-color: transparent; border: 0px; color: #1c1c1c; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Roedores:&lt;/strong&gt;&lt;/div&gt;
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&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Rato-preto ou ratazana (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Rattus rattus&lt;/em&gt;): 2,6 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Camundongo ou rato-doméstico (&lt;em style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Mus musculus&lt;/em&gt;): 0,5 g&lt;/li&gt;
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Bônus&lt;/h3&gt;
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&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Baleia cachalote: 7,8 kg&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Vaca: 5,6 kg&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Orca: 5,6 kg&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Elefante: 7,5 kg&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Golfinho: 1,6 kg&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Abelha: 0,013 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Beija-flor: 1 g&lt;/li&gt;
&lt;li style=&quot;background-color: transparent; border: 0px; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;&quot;&gt;Hipopótamo: 500 g&lt;/li&gt;
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Curiosamente, a proporção entre o cérebro e o corpo da abelha (15,6%) é bem maior que a do hipopótamo (0,017%), tornando-a mais esperta. Já a barata nem cérebro tem. No lugar, possui o céfalotorax, um órgão que atravessa seu corpo e só serve mesmo para mantê-la viva. Para matá-la, mal adianta arrancar sua cabeça…&lt;/div&gt;
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&lt;span style=&quot;font-family: Arial, Verdana, sans-serif; font-size: x-small;&quot;&gt;&lt;span style=&quot;line-height: 18px;&quot;&gt;&lt;span style=&quot;color: #333333;&quot;&gt;Fotos: &lt;/span&gt;&lt;a href=&quot;http://hypescience.com/veja-o-tamanho-e-peso-do-cerebro-humano-em-comparacao-com-outros-animais/&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://hypescience.com/veja-o-tamanho-e-peso-do-cerebro-humano-em-comparacao-com-outros-animais/&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/7718672871249536982/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/ciencia-veja-o-tamanho-e-peso-do.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/7718672871249536982'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/7718672871249536982'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/ciencia-veja-o-tamanho-e-peso-do.html' title='#Ciencia: Veja o tamanho e peso do cérebro humano em comparação com outros animais'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhf1mOrLxBZZYdEtrAM0iA9UWF2hICDZeva3Zr_48y7gRa7IiaQMyszt6dQkHtWtktm035PeyaXvvQhTt1ItVBLzrfTDAuesHFaWn0SubPkttrhvQ6gaVzaOB9r5lBGtiap64R9gpcxz8GT/s72-c/14451_519579334727496_424223017_n-600x848.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-6413376765779826779</id><published>2012-12-09T02:47:00.000-08:00</published><updated>2012-12-09T03:21:20.812-08:00</updated><title type='text'>Conheça 10 curiosidades sobre a exploração espacial</title><content type='html'>&lt;span style=&quot;font-family: Arial, Helvetica, sans-serif; font-size: 12px; line-height: 16px;&quot;&gt;Nos últimos 20 anos, os ônibus espaciais levaram ao espaço mais de 1,3 milhões de kg de carga, transportaram mais de 600 pessoas, entre passageiros e pilotos, acumularam mais de três anos de tempo de vôo e percorreram aproximadamente 1,6 milhões de km. Confira 10 fatos curiosos sobre os programas espaciais dos Estados Unidos.&lt;/span&gt;&lt;br /&gt;
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&lt;img height=&quot;328&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5G3G0uhxlVewLlGIHDhDlsim4JTf_woRIgT5CCBzpkGWu7Rdm35G1vQ8ncge9MZ66-R0aSNE6njiy-opZdhY7wLrz5Pp7OczMBOIInLepYZ3hQE6tMOAj6xIQo5y3cI9GdYIFuEJvjdwh/s640/aventura_no_cosmo_exploracao_espacial.jpg&quot; width=&quot;640&quot; /&gt;&lt;/div&gt;
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1 - Não há um número certo de pessoas em uma sala de aula de candidatos a uma vaga de astronauta. A Nasa faz a seleção a partir das suas próprias necessidades. Um dos pré-requisitos para viajar ao espaço é ter mil horas de vôo em jatos.&lt;/div&gt;
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2 - Um traje espacial pesa aproximadamente 127 kg (sem contar o peso do astronauta) e leva cerca de 45 minutos para ser vestido.&lt;/div&gt;
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3 - O personagem Snoopy é o mascote pessoal de segurança dos astronautas.&lt;/div&gt;
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4 - O Explorer 1, lançado em 31 de janeiro de 1958, foi o primeiro satélite artificial lançado pelos Estados Unidos. Ele permaneceu em órbita por 115 minutos e descobriu o cinturão de radiação na magnetosfera da Terra.&lt;/div&gt;
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5 - Cada astronauta a bordo de um ônibus espacial tem à sua disposição 1,82 kg de comida por dia. Ela é armazenada individualmente para ser mais bem manejada em gravidade zero. Ela não precisa de refrigeração e, para ser consumida, basta adicionar água ou aquecê-la. As únicas exceções são frutas e vegetais, que são guardados em armários adequados, sem refrigeração. Para não estragar, cenouras e aipos precisam ser consumidos nos dois primeiros dias de missão. Sal, pimenta, ketchup, maionese e mostarda são alguns dos condimentos disponíveis a bordo.&lt;/div&gt;
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6 - Um foguete tripulado leva menos tempo para chegar à Lua do que uma antiga diligência levava para atravessar a Inglaterra.&lt;/div&gt;
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7 - A primeira estação espacial americana foi a Skylab, que era maior que um prédio de 12 andares e tinha 12 mil m³ de espaço livre.&lt;/div&gt;
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8 - Embora possa parecer antiquado, a bandeira ainda é posicionada para que apareça na lateral da nave. Isto é feito de acordo com as normas americanas de posicionamento da bandeira dos Estados Unidos em aeronaves do país.&lt;/div&gt;
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9 - A tradição de levar bandeiras dos Estados Unidos ao espaço começou com o primeiro americano que foi ao espaço, Alan Shepard, em 1961. Estudantes de uma escola primária de Cocoa Beach, na Flórida, compraram uma bandeira para Shepard carregar a bordo. Ela foi enrolada e posicionada entre os cabos atrás da cabeça do astronauta, dentro da espaçonave Freedom 7 Mercury. &quot;As bandeiras americanas são um símbolo patriótico da nossa força, solidariedade e vontade de vencer&quot;, disse o administrador da Nasa da época, Daniel Goldin.&lt;/div&gt;
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10 - Leva seis horas para um ônibus espacial ser transportado do prédio de montagem até a plataforma de lançamento.&lt;/div&gt;
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&lt;span style=&quot;font-size: xx-small;&quot;&gt;Fonte: &lt;a href=&quot;http://noticias.terra.com.br/ciencia/interna/0,,OI1948375-EI301,00.html&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://noticias.terra.com.br/ciencia/interna/0,,OI1948375-EI301,00.html&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;
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</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/6413376765779826779/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/conheca-10-curiosidades-sobre.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6413376765779826779'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6413376765779826779'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/conheca-10-curiosidades-sobre.html' title='Conheça 10 curiosidades sobre a exploração espacial'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5G3G0uhxlVewLlGIHDhDlsim4JTf_woRIgT5CCBzpkGWu7Rdm35G1vQ8ncge9MZ66-R0aSNE6njiy-opZdhY7wLrz5Pp7OczMBOIInLepYZ3hQE6tMOAj6xIQo5y3cI9GdYIFuEJvjdwh/s72-c/aventura_no_cosmo_exploracao_espacial.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-6357703688692220533</id><published>2012-12-09T02:41:00.000-08:00</published><updated>2012-12-09T02:41:06.546-08:00</updated><title type='text'>Mais Evidências da Passagem de Água em Marte?</title><content type='html'>&lt;img alt=&quot;marte sedimentos água&quot; height=&quot;574&quot; src=&quot;http://cdn.astronomoamador.net/wp-content/uploads/marte-sedimentos1.jpg&quot; width=&quot;640&quot; /&gt;&lt;br /&gt;
&lt;span style=&quot;background-color: white; font-family: Georgia, Times New Roman, serif;&quot;&gt;&lt;span style=&quot;line-height: 19px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/span&gt;
&lt;span style=&quot;background-color: white; font-family: Georgia, Times New Roman, serif;&quot;&gt;&lt;span style=&quot;line-height: 19px;&quot;&gt;A cratera Terby, em&amp;nbsp;&lt;/span&gt;Marte&lt;span style=&quot;line-height: 19px;&quot;&gt;, com cerca de 170 km de diâmetro, tem nas suas bordas um complexa e interessante conjunto de camadas de rocha sedimentar, cuja formação tanto pode ter sido provocada por vento ou água – sendo que a cor e possível composição destes sedimentos apontem mais para esta segunda hipótese de milhares de anos de submersão em água líquida.&lt;/span&gt;&lt;/span&gt;&lt;br /&gt;
&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif; line-height: 19px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;
&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif; line-height: 19px;&quot;&gt;Esta imagem, em cores falsas para evidenciar detalhes, foi captada pela HiRISE, um instrumento a bordo da Mars Reconnaissance Orbietr e leva a crer que as camadas sedimentares foram o resultado da presença de água. A cratera Terby já foi considerada como hipótese de aterragem para o Mars Science Laboratory, mas foi entretanto descartada. Continua, contudo, como um local de superior interesse para uma futura missão ao planeta vermelho.&lt;/span&gt;&lt;br /&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, Times New Roman, serif;&quot;&gt;Será que a água permaneceu por baixo da superfície quando o planeta secou? Ou, será que ainda lá está?&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, Times New Roman, serif; font-size: x-small; line-height: 19px;&quot;&gt;Fonte: &lt;span style=&quot;color: orange;&quot;&gt;&lt;a href=&quot;http://www.astronomoamador.net/2011/evidencias-agua-marte&quot;&gt;http://www.astronomoamador.net/2011/evidencias-agua-marte&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/6357703688692220533/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/mais-evidencias-da-passagem-de-agua-em.html#comment-form' title='1 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6357703688692220533'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6357703688692220533'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/mais-evidencias-da-passagem-de-agua-em.html' title='Mais Evidências da Passagem de Água em Marte?'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><thr:total>1</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-2236632745969813554</id><published>2012-12-09T02:30:00.000-08:00</published><updated>2012-12-09T02:30:07.896-08:00</updated><title type='text'>Nasa vai enviar outro robô a Marte em 2020</title><content type='html'>&lt;br /&gt;
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&lt;img src=&quot;http://i0.ig.com/bancodeimagens/96/31/8b/96318bt7s8hgbr4itx4kypymb.jpg&quot; /&gt;&lt;/div&gt;
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A Nasa planeja enviar um novo veículo a Marte em 2020 visando uma missão tripulada ao Planeta Vermelho, disse a agência espacial americana na terça-feira (4).&lt;/div&gt;
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Para cortar custos, o novo jipe-robô será construído com partes sobressalentes do popular Curiosity, que chegou a Marte em agosto. A missão será comandada pelo Laboratório de Propulsão a Jato (na sigla em inglês JPL), e alguns detalhes ainda precisam ser definidos, como onde o veículo vai pousar e o que exatamente vai procurar em Marte. O Curiosity, por exemplo, tem um laboratório inteiro em seu interior para descobrir se existem substâncias no planeta que permitem a vida, como compostos orgânicos.&amp;nbsp;&lt;/div&gt;
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John Grunsfeld, cientista-chefe da Nasa, diz que um dos objetivos da missão seria o de trazer solo e rochas marcianas de volta à Terra -- o Curiosity atualmente não tem como fazer isso. O valor do orçamento também não foi fechado, mas estima-se que fique em torno de 1,5 bilhão de dólares.&lt;/div&gt;
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Marte vai ver bastante movimento nos próximos anos: uma sonda será lançada ano que vem para estudar a atmosfera marciana, e em 2016, a previsão é que outra sonda de superfície pouse no planeta. Depois deste novo veículo, a vez seria dos seres humanos, já que o governo americano quer que a Nasa leve astronautas ao planeta vermelho em 2030.&lt;/div&gt;
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&lt;span style=&quot;font-size: x-small;&quot;&gt;Fonte:&amp;nbsp;&lt;a href=&quot;http://ultimosegundo.ig.com.br/ciencia/2012-12-05/nasa-vai-enviar-outro-robo-a-marte-em-2020.html&quot;&gt;http://ultimosegundo.ig.com.br/ciencia/2012-12-05/nasa-vai-enviar-outro-robo-a-marte-em-2020.html&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;
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</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/2236632745969813554/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/nasa-vai-enviar-outro-robo-marte-em-2020.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/2236632745969813554'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/2236632745969813554'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/nasa-vai-enviar-outro-robo-marte-em-2020.html' title='Nasa vai enviar outro robô a Marte em 2020'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-3911950900152634143</id><published>2012-12-08T02:05:00.001-08:00</published><updated>2012-12-08T02:05:23.046-08:00</updated><title type='text'>Imagem Mostra o Lançamento da Apollo 17</title><content type='html'>&lt;img height=&quot;480&quot; src=&quot;http://cienctec.com.br/wordpress/wp-content/uploads/2012/12/lancamento_apollo_17.jpg&quot; width=&quot;640&quot; /&gt;&lt;br /&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;O imenso veículo espacial da Apollo 17 com 363 pés de altura é lançado do Pad A do Complexo de Lançamento 39 do Kennedy Space Center (KSC) na Flórida, às 12:33 a.m. (EST), no dia 7 de Dezembro de 1972.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;A Apollo 17 foi a última missão do programa Apollo da NASA a pousar na Lua, foi também o primeiro lançamento noturno de um veículo de lançamento Saturno V. A bordo da Apollo 17 estavam o astronauta Eugene A. Cernan, comandante; o astronauta Ronald E. Evans, piloto do módulo de comando; e o astronauta cientista &amp;nbsp;Harrison H. Schmitt, piloto do módulo lunar. O fogo dos cinco motores F-1 do primeiro estágio S-1C do Apollo/Saturno ilumina essa cena noturna mostrada acima. O lançamento da missão Apollo 17 teve um atraso de duas horas e quarenta minutos até que pudesse ser realizado com sucesso.&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Georgia, Arial, Helvetica, sans-serif; line-height: 30.383333206176758px; padding: 0px 0px 14px 1px;&quot;&gt;
&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;Fonte:&lt;span style=&quot;color: orange;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;line-height: 30.383333206176758px; margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;a href=&quot;http://www.nasa.gov/multimedia/imagegallery/image_feature_2405.html&quot; style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://www.nasa.gov/multimedia/imagegallery/image_feature_2405.html&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/3911950900152634143/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/imagem-mostra-o-lancamento-da-apollo-17.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/3911950900152634143'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/3911950900152634143'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/imagem-mostra-o-lancamento-da-apollo-17.html' title='Imagem Mostra o Lançamento da Apollo 17'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-8348489553301424257</id><published>2012-12-05T18:18:00.001-08:00</published><updated>2012-12-05T18:18:32.780-08:00</updated><title type='text'>Vento Solar gera Belas Auroras no Círculo Ártico</title><content type='html'>&lt;br /&gt;
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&lt;a href=&quot;http://cienctec.com.br/wordpress/wp-content/uploads/2012/12/aurora_vento_fraco_01.jpg&quot; style=&quot;color: #828343; margin: 0px; padding: 0px; text-decoration: initial;&quot;&gt;&lt;img alt=&quot;&quot; class=&quot;aligncenter size-full wp-image-37100&quot; height=&quot;600&quot; src=&quot;http://cienctec.com.br/wordpress/wp-content/uploads/2012/12/aurora_vento_fraco_01.jpg&quot; style=&quot;border-collapse: collapse; border: 0px; display: block; margin: 0px auto; max-width: 100%; padding: 0px;&quot; title=&quot;aurora_vento_fraco_01&quot; width=&quot;900&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;background-color: white;&quot;&gt;Um vento solar de média velocidade, aproximadamente 450 km/s está fluindo e passando pela Terra. A ação desse fluxo fraco não é o suficiente para disparar tempestades geomagnéticas completas, mas é o suficiente para iniciar auroras ao redor do Círculo Ártico. Frank Olsen, na Noruega, fez essa imagem durante as primeiras horas do dia 4 de Dezembro de 2012.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;a href=&quot;http://cienctec.com.br/wordpress/wp-content/uploads/2012/12/aurora_vento_fraco_02.jpg&quot; style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;img alt=&quot;&quot; class=&quot;aligncenter size-full wp-image-37099&quot; height=&quot;600&quot; src=&quot;http://cienctec.com.br/wordpress/wp-content/uploads/2012/12/aurora_vento_fraco_02.jpg&quot; style=&quot;border-collapse: collapse; border: 0px; display: block; margin: 0px auto; max-width: 100%; padding: 0px;&quot; title=&quot;aurora_vento_fraco_02&quot; width=&quot;900&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; line-height: 30.383333206176758px;&quot;&gt;A tempestade geomagnética mantém uma chance baixa entre 5% e 15% de acordo com a agência NOAA de ficar forte, mas as luzes do Ártico ainda podem continuar brilhando enquanto o vento continuar a soprar.&lt;/span&gt;&lt;/div&gt;
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&lt;a href=&quot;http://cienctec.com.br/wordpress/wp-content/uploads/2012/12/aurora_vento_fraco_03.jpg&quot; style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;img alt=&quot;&quot; class=&quot;aligncenter size-full wp-image-37101&quot; height=&quot;600&quot; src=&quot;http://cienctec.com.br/wordpress/wp-content/uploads/2012/12/aurora_vento_fraco_03.jpg&quot; style=&quot;border-collapse: collapse; border: 0px; display: block; margin: 0px auto; max-width: 100%; padding: 0px;&quot; title=&quot;aurora_vento_fraco_03&quot; width=&quot;900&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;background-color: white; font-family: Georgia, Arial, Helvetica, sans-serif;&quot;&gt;Fonte:&lt;/span&gt;&lt;span style=&quot;background-color: white; font-family: Georgia, Times New Roman, serif;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;line-height: 30.383333206176758px; margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;a href=&quot;http://www.spaceweather.com/&quot; style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;color: orange; font-family: Georgia, Times New Roman, serif;&quot;&gt;www.spaceweather.com&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/8348489553301424257/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/vento-solar-gera-belas-auroras-no.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/8348489553301424257'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/8348489553301424257'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/vento-solar-gera-belas-auroras-no.html' title='Vento Solar gera Belas Auroras no Círculo Ártico'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-3992685049914402213</id><published>2012-12-05T18:12:00.004-08:00</published><updated>2012-12-05T18:12:53.677-08:00</updated><title type='text'>Sonda Voyager encontra região “inesperada” na fronteira do sistema solar</title><content type='html'>&lt;br /&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwyP13wEruQaOOXyFO9_Uaj7F8ld2XS43h5t6-UI64JAdif1basuoMJQwUiOmzYrBuOQa_YzjOXPPMARZj6iZFplkgshYHAvDOjBpUtf6BSV8qQIFLJb3zEib1db6LhrpxhGJwKYpBVH8y/s1600/524723main_pia13892-43_946-710-640x480-600x450.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;480&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwyP13wEruQaOOXyFO9_Uaj7F8ld2XS43h5t6-UI64JAdif1basuoMJQwUiOmzYrBuOQa_YzjOXPPMARZj6iZFplkgshYHAvDOjBpUtf6BSV8qQIFLJb3zEib1db6LhrpxhGJwKYpBVH8y/s640/524723main_pia13892-43_946-710-640x480-600x450.jpg&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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Já faz alguns anos que a sonda espacial Voyager 1 começou a se aproximar da fronteira do sistema solar e, contrariando as previsões feitas pela maioria dos cientistas, ainda não ultrapassou a “borda”.&lt;/div&gt;
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Dentro dos limites do sistema, o ambiente é dominado pelo campo magnético solar e por partículas carregadas lançadas por ele (fenômeno conhecido como “vento solar”). Fora dessa região, porém, há um fluxo de partículas próprio do espaço interestelar (refletido pelo campo magnético do sol), e também um campo magnético com orientação diferente.&lt;/div&gt;
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O que os astrônomos imaginavam era que, quando a Voyager 1 alcançasse o “limite” do sistema solar, registraria uma clara alteração no ambiente ao deixar para trás o campo magnético do sol: este, devido a forças do espaço interestelar, mudaria de direção, e a sonda detectaria raios cósmicos de baixa energia (um indício do “lado de fora”).&lt;/div&gt;
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O que a Voyager 1 registrou há alguns anos, porém, foi uma redução da velocidade do campo magnético solar e uma ausência de raios cósmicos. Contudo, em 2012 a situação começou a mudar: no final de julho, foi registrada uma queda na quantidade de partículas emitidas pelo sol e uma elevação na presença de raios cósmicos; alguns dias depois, o cenário se inverteu e, em 28 de agosto, mudou para valer, com mil vezes menos partículas emitidas pelo sol e uma quantidade crescente de raios cósmicos.&lt;/div&gt;
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Essa mudança estava no roteiro. Um fenômeno, porém, ainda intriga os cientistas: a orientação do campo magnético solar praticamente não mudou, mesmo com as outras alterações. Os responsáveis pela missão da Voyager 1 suspeitam que a sonda entrou em uma região que não estava prevista na viagem, em que o campo magnético solar e o interestelar se ligam e permitem um fluxo de mão dupla (partículas solares escapam mais rapidamente, enquanto raios cósmicos podem entrar no sistema). A maioria dos modelos do sistema solar não prevê esse fenômeno, e mesmo aqueles que o fazem consideram que ele ocorreria apenas em determinadas fases do ciclo solar.&lt;/div&gt;
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&lt;span style=&quot;font-family: Arial, Verdana, sans-serif; font-size: x-small;&quot;&gt;&lt;span style=&quot;line-height: 18px;&quot;&gt;&lt;span style=&quot;color: #333333;&quot;&gt;Fonte: &lt;/span&gt;&lt;a href=&quot;http://arstechnica.com/science/2012/12/voyager-1-spots-new-region-at-the-edge-of-the-solar-system/&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://arstechnica.com/science/2012/12/voyager-1-spots-new-region-at-the-edge-of-the-solar-system/&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/3992685049914402213/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/sonda-voyager-encontra-regiao.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/3992685049914402213'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/3992685049914402213'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/12/sonda-voyager-encontra-regiao.html' title='Sonda Voyager encontra região “inesperada” na fronteira do sistema solar'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhwyP13wEruQaOOXyFO9_Uaj7F8ld2XS43h5t6-UI64JAdif1basuoMJQwUiOmzYrBuOQa_YzjOXPPMARZj6iZFplkgshYHAvDOjBpUtf6BSV8qQIFLJb3zEib1db6LhrpxhGJwKYpBVH8y/s72-c/524723main_pia13892-43_946-710-640x480-600x450.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-24319760471438206</id><published>2012-11-30T19:08:00.001-08:00</published><updated>2012-11-30T19:08:44.828-08:00</updated><title type='text'>Imagem do dia: Tempestade gigante em Saturno</title><content type='html'>&lt;span style=&quot;background-color: white;&quot;&gt;&lt;table align=&quot;center&quot; cellpadding=&quot;0&quot; cellspacing=&quot;0&quot; class=&quot;tr-caption-container&quot; style=&quot;margin-left: auto; margin-right: auto; text-align: center;&quot;&gt;&lt;tbody&gt;
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&lt;tr&gt;&lt;td class=&quot;tr-caption&quot; style=&quot;text-align: center;&quot;&gt;&lt;h1 style=&quot;font-family: cambria, serif; font-weight: normal; margin: 0px 0px 10px; padding: 0px; text-align: start;&quot;&gt;
&lt;span style=&quot;font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;color: #004552;&quot;&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;/span&gt;&lt;span style=&quot;color: orange;&quot;&gt; &amp;nbsp; Sonda Cassini da NASA fotografa super-furacão no pólo norte do planeta&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/h1&gt;
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&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;A sonda Cassini da NASA voltou a captar imagens dos fenómenos climáticos extremos que acontecem em Saturno. Desta vez, apresenta uma fotografia de uma super-tempestade no pólo norte do planeta. Foi captada há dois dias a uma distância de 361 mil quilómetros. &amp;nbsp;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;Esta imagem é importante visto que até há pouco tempo aquela região saturniana era muito difícil de observar. O principal motivo residia no facto do planeta estar a passar pelo seu comprido inverno de 15 anos.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;Só era possível detectar estes fenómenos através de raios infravermelhos. Em 2009, acabou o Inverno e a luz do Sol voltou a entrar na região, permitindo a observação desta tempestade, parecida à que os astrónomos descobriram há seis anos no polo sul.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;Em 2006, a mesma sonda detectou uma tempestade com uma largura até dois terços a da Terra, no pólo sul do planeta. Essa foi a primeira vez que se observou um fenómeno semelhante aos furacões terrestres no Sistema Solar.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;Os astrónomos pensam que estas tempestades se forma da mesma forma que furacões através do ar quente e húmido nas camadas baixas.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-family: Georgia, Times New Roman, serif; font-size: x-small;&quot;&gt;Fonte: &lt;a href=&quot;http://www.cienciahoje.pt/index.php?oid=56345&amp;amp;op=all&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://www.cienciahoje.pt/index.php?oid=56345&amp;amp;op=all&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;
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</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/24319760471438206/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-tempestade-gigante-em.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/24319760471438206'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/24319760471438206'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-tempestade-gigante-em.html' title='Imagem do dia: Tempestade gigante em Saturno'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLJ4tfmIR2HtPNNuvDecf7nMKm3cMD8K5KLkK8jmMxaRCKPr9bLQLrdTDqxdO2UaVq5EkXhirgbKRGVBA-_pMfdpeSW5yk-VJ7Ot7nqsc61RVq04tzb5rwg_dH5Z9F1rg6eF4sgU4qfIvO/s72-c/56346.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-1888247853853620895</id><published>2012-11-30T19:02:00.003-08:00</published><updated>2012-11-30T19:09:00.126-08:00</updated><title type='text'>As Nuvens da Constelação Cygnus</title><content type='html'>&lt;br /&gt;
&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;
&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWv26Zl7A_nfP9zKlPgses88VeATJ8e43wv2MDgwO2UqvTdvbLzD3y89Hmu5kUVgZy-PZtwpR6uCLLe447ABKhvVH9x-4ZJcLqYjVZ76U2xBJeAOWFOCUiH6S4diq7HkpN6YwLmYVHSaQZ/s1600/2012-11_CygnusHPd_2k.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;640&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWv26Zl7A_nfP9zKlPgses88VeATJ8e43wv2MDgwO2UqvTdvbLzD3y89Hmu5kUVgZy-PZtwpR6uCLLe447ABKhvVH9x-4ZJcLqYjVZ76U2xBJeAOWFOCUiH6S4diq7HkpN6YwLmYVHSaQZ/s640/2012-11_CygnusHPd_2k.jpg&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Georgia, Arial, Helvetica, sans-serif; font-size: 16px; line-height: 30.383333206176758px; padding: 0px 0px 14px 1px; text-align: justify;&quot;&gt;
&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;Nuvens de gás e poeira se espalham através desse magnífico mosaico cobrindo um campo de visão de 12 x 12 graus dentro da constelação de Cygnus. A paisagem celeste colaborativa, é na verdade uma combinação de imagens de banda larga e de banda restrita com os dados apresentados utilizando a chamada paleta Hubble, e é ancorada pela brilhante e quente, estrela supergigante Deneb, localizado abaixo do centro perto da borda esquerda. A estrela alpha da constelação de Cygnus, Deneb, está no topo do asterismo conhecido como a Cruz do Norte e é vista perto do espaço escuro conhecido como o Saco de Carvão do Norte. Abaixo da estrela Deneb estão as reconhecíveis nebulosas da América do Norte e do Pelicano, a NGC 7000 e a IC 5070, respectivamente. Outra estrela supergigante vermelha, a Sadr, ou Gamma Cygni, está perto do centro do campo de visão um pouco acima das asas brilhantes da Nebulosa da Borboleta. Se você desenhar uma linha contínua para cima e para a direita irá encontrar a nebulosa mais compacta, conhecida como Nebulosa Crescente e finalmente chegará à Nebulosa da Tulipa, perto do topo da imagem. A maior parte dessas complexas nebulosidades está localizada a aproximadamente 2000 anos-luz de distância da Terra. Juntamente com o Sol, elas se localizam no braço espiral de Orion da nossa galáxia, a Via Láctea.&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;line-height: 30.383333206176758px; padding: 0px 0px 14px 1px;&quot;&gt;
&lt;span style=&quot;font-family: Georgia, Times New Roman, serif; font-size: x-small;&quot;&gt;&lt;em style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;Fonte:&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/em&gt;&lt;em style=&quot;line-height: 30.383333206176758px; margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;a href=&quot;http://apod.nasa.gov/apod/ap121130.html&quot; style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://apod.nasa.gov/apod/ap121130.html&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/em&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/1888247853853620895/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-as-nuvens-da-constelacao.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/1888247853853620895'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/1888247853853620895'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-as-nuvens-da-constelacao.html' title='As Nuvens da Constelação Cygnus'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWv26Zl7A_nfP9zKlPgses88VeATJ8e43wv2MDgwO2UqvTdvbLzD3y89Hmu5kUVgZy-PZtwpR6uCLLe447ABKhvVH9x-4ZJcLqYjVZ76U2xBJeAOWFOCUiH6S4diq7HkpN6YwLmYVHSaQZ/s72-c/2012-11_CygnusHPd_2k.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-779064117722542810</id><published>2012-11-30T18:48:00.000-08:00</published><updated>2012-11-30T18:48:41.928-08:00</updated><title type='text'>EUA planejavam detonar bomba atômica na Lua</title><content type='html'>&lt;br /&gt;
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&lt;a href=&quot;http://misteriosdomundo.com/wp-content/uploads/2012/11/Bomba-at%C3%B4mica-Lua.jpg&quot; imageanchor=&quot;1&quot; style=&quot;background-color: white; margin-left: 1em; margin-right: 1em; text-decoration: initial;&quot;&gt;&lt;span style=&quot;color: black;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;619&quot; src=&quot;http://misteriosdomundo.com/wp-content/uploads/2012/11/Bomba-at%C3%B4mica-Lua.jpg&quot; style=&quot;-webkit-box-shadow: rgba(0, 0, 0, 0.2) 0px 0px 0px; border-bottom-left-radius: 0px; border-bottom-right-radius: 0px; border-top-left-radius: 0px; border-top-right-radius: 0px; border: 1px solid transparent; box-shadow: rgba(0, 0, 0, 0.2) 0px 0px 0px; padding: 8px; position: relative;&quot; width=&quot;640&quot; /&gt;&lt;/span&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white;&quot;&gt;&lt;span style=&quot;font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;Muita gente conhece a famosa Guerra Fria que ocorreu logo após a segunda guerra determinando a luta entre EUA e União Soviética ou então Capitalismo X Socialismo, o EUA ganhou quando “enviaram astronautas para lua” (eles dizem) e uma série de coisas que ajudou o capitalismo a ganhar, mas não vamos entrar muito em detalhes para não&lt;/span&gt;&lt;span style=&quot;font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;fugir do foco desse artigo.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;Pouca gente sabe que de acordo com uma reportagem publicada pelo jornal&lt;span class=&quot;apple-converted-space&quot; style=&quot;color: orange;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;a href=&quot;http://www.telegraph.co.uk/science/space/9707686/US-planned-to-blow-up-a-nuclear-bomb-on-the-Moon.html&quot; style=&quot;color: orange; text-decoration: initial;&quot; target=&quot;_blank&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;The Telegraph&lt;/span&gt;&lt;/a&gt;,&lt;span style=&quot;color: orange;&quot;&gt; &lt;/span&gt;os americanos planejavam explodir bombas atômicas na Lua como forma de intimidar a União Soviética durante a Guerra Fria. Entre as pessoas que colaboraram com cálculos avaliados pelo governo americano estava o astrônomo Carl Sagan que, na época, era bastante jovem.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;Soa meio louca essa idéia de explodir bomba atômica na lua, depois que foi usado a bomba nuclear no Japão já deveríamos ter deixado de fabricar não é?&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;&lt;b&gt;Mas como sempre o homem é ignorante, mas por que não explodiram?&lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;&lt;b&gt;&lt;br /&gt;&lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;&lt;b&gt;Não tinha tecnologia suficiente?&lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;Não sabemos, mas o que dizem é que os militares abandonaram essa idéia, que deveria ter acontecido em 1959, por temer os efeitos colaterais que a Terra poderia sofrer no caso de algo dar errado.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;&lt;b&gt;Então por que tiveram essa ideia?&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;De acordo com o físico Leonard Reiffe, que teria participado do &quot;Projeto A119&quot;, como era conhecido, esse plano daria aos Estados Unidos o ânimo que precisavam depois de terem visto os adversários colocarem em órbita o primeiro satélite artificial do mundo, em 1957.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;&lt;b&gt;Qual a prova que existe disso tudo?&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;Há documentos secretos que comprovam a existência do plano, eles foram mantidos em segredo por quase 45 anos e os EUA nunca confirmou formalmente o seu envolvimento nesse estudo.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;Em vez de explodir bombas na Lua, o país resolveu, então, apostar na corrida espacial contra a União Soviética, o que levou os Estados Unidos a enviarem o “primeiro ser humano” para a Lua, em julho de 1969. O que dissemos no começo.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;&lt;b&gt;Se realmente foi verdade como que eles pretendiam lançar a bomba na lua?&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;O jornal&amp;nbsp;&lt;a href=&quot;http://www.thesun.co.uk/sol/homepage/news/4667882/america-had-plans-to-nuke-the-moon.html&quot; style=&quot;text-decoration: initial;&quot; target=&quot;_blank&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;The Sun&lt;/span&gt;&lt;/a&gt;&lt;span class=&quot;apple-converted-space&quot;&gt;&amp;nbsp;&lt;/span&gt;alega que, para a realização desse plano, os EUA usariam uma bomba atômica, pois a bomba de hidrogênio seria pesada demais.&lt;/span&gt;&lt;/div&gt;
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&lt;o:p&gt;&lt;span style=&quot;background-color: white; font-family: Georgia, &#39;Times New Roman&#39;, serif;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/o:p&gt;&lt;/div&gt;
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&lt;o:p&gt;&lt;span style=&quot;background-color: white; line-height: 22px;&quot;&gt;&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;Fonte:&lt;/span&gt;&lt;span style=&quot;color: orange; font-family: Georgia, Times New Roman, serif;&quot;&gt;&amp;nbsp;&lt;a href=&quot;http://jualfiquepordentrodetudo.blogspot.com.br/2012/11/eua-pretendia-detonar-bomba-atomica-na.html&quot;&gt;http://jualfiquepordentrodetudo.blogspot.com.br/2012/11/eua-pretendia-detonar-bomba-atomica-na.html&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/o:p&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/779064117722542810/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/eua-planejavam-detonar-bomba-atomica-na.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/779064117722542810'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/779064117722542810'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/eua-planejavam-detonar-bomba-atomica-na.html' title='EUA planejavam detonar bomba atômica na Lua'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-2111846893644410498</id><published>2012-11-30T18:33:00.003-08:00</published><updated>2012-11-30T18:33:42.162-08:00</updated><title type='text'>Cientistas encontram petróleo no espaço</title><content type='html'>&lt;table align=&quot;center&quot; cellpadding=&quot;0&quot; cellspacing=&quot;0&quot; class=&quot;tr-caption-container&quot; style=&quot;margin-left: auto; margin-right: auto; text-align: center;&quot;&gt;&lt;tbody&gt;
&lt;tr&gt;&lt;td style=&quot;text-align: center;&quot;&gt;&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPLSDzpml9AIEdwMw3y5hUdei_tMmFd4aQSApIj-GP67nL0wUL9pzt_KRq98E8Cga1FP3X22fgjtiRmSFNlXk75utEFvtYrOZJWqc67Iq-QJ-DU2gASNc7dAflx4T5wfAGTMANjFyGKsiJ/s1600/583px-The_Horshead_Nebula.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: auto; margin-right: auto;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;640&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPLSDzpml9AIEdwMw3y5hUdei_tMmFd4aQSApIj-GP67nL0wUL9pzt_KRq98E8Cga1FP3X22fgjtiRmSFNlXk75utEFvtYrOZJWqc67Iq-QJ-DU2gASNc7dAflx4T5wfAGTMANjFyGKsiJ/s640/583px-The_Horshead_Nebula.jpg&quot; width=&quot;622&quot; /&gt;&lt;/a&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;tr-caption&quot; style=&quot;text-align: center;&quot;&gt;&lt;span style=&quot;background-color: white; font-family: Arial, Verdana, Tahoma, Helvetica; font-size: 11px; text-align: start;&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;A Nebulosa Cabeça de Cavalo está sendo chamada pelos astrônomos de &quot;refinaria cósmica&quot;. [Imagem:&amp;nbsp;ESO]&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
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Se o petróleo é razão de grandes disputas econômicas e, por vezes, até militares aqui na Terra, na nebulosa&amp;nbsp;&amp;nbsp;apelidada de Cabeça de Cavalo as substâncias que compõem o “ouro negro” podem ser hiperabundantes.&lt;/div&gt;
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É o que revela a pesquisa dos astrônomos do Instituto Max Planck, da Alemanha. Pela primeira vez, foram encontradas&amp;nbsp;moléculas interestelares de C3H+, que integra a família dos&amp;nbsp;hidrocarbonetos -&amp;nbsp;partículas fundamentais na composição do petróleo.&amp;nbsp;&lt;/div&gt;
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De acordo com o estudo, a&amp;nbsp;nebulosa contém 200 vezes mais hidrocarbonetos do que a quantidade total de água em nosso planeta. A reserva fica na constelação de Órion e está a cerca de 1.400 anos-luz de distância da Terra (ou 26 milhões de anos de viagem da nave Voyager 1, a mais rápida da Terra).&lt;/div&gt;
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Uma das explicações para os níveis “inesperadamente elevados” de hidrocarbonetos na nebulosa é a proximidade&amp;nbsp;a uma estrela maciça, que brilha intensamente na região.&amp;nbsp;O “petróleo” surge da fragmentação de moléculas gigantes, os&amp;nbsp;hidrocarbonos policíclicos aromáticos(ou PAHs). Essas grandes partículas sofrem erosão com a radiação ultravioleta e se desintegram, criando uma grande quantidade de pequenos hidrocarbonetos.&lt;/div&gt;
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A equipe fez um estudo químico completo da Nebulosa Cabeça do Cavalo, usando&amp;nbsp;um radiotelescópio de 30 metros do Instituto de Radioastronomia Milimétrica, na Espanha. A descoberta confirma que a região é uma espécie de refinaria cósmica e pode ajudar a entender se esse tipo de óleo é realmente um composto fóssil ou tem origem mineral.&lt;/div&gt;
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&lt;strong style=&quot;border: none; margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;O que são nebulosas&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
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Nebulosas são gigantescas nuvens de poeira, hidrogênio e plasma onde há&amp;nbsp;formação de estrelas e, por tabela, de sistemas planetários. São formações astronômicas muito brilhantes e geralmente de fácil observação no céu, desde que com os instrumentos adequados.&lt;/div&gt;
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&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;color: #333333;&quot;&gt;Fonte:&amp;nbsp;&lt;/span&gt;&lt;a href=&quot;http://www.inovacaotecnologica.com.br/noticias/noticia.php?artigo=petroleo-descoberto-espaco&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://www.inovacaotecnologica.com.br/noticias/noticia.php?artigo=petroleo-descoberto-espaco&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/2111846893644410498/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/cientistas-encontram-petroleo-no-espaco.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/2111846893644410498'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/2111846893644410498'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/cientistas-encontram-petroleo-no-espaco.html' title='Cientistas encontram petróleo no espaço'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPLSDzpml9AIEdwMw3y5hUdei_tMmFd4aQSApIj-GP67nL0wUL9pzt_KRq98E8Cga1FP3X22fgjtiRmSFNlXk75utEFvtYrOZJWqc67Iq-QJ-DU2gASNc7dAflx4T5wfAGTMANjFyGKsiJ/s72-c/583px-The_Horshead_Nebula.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-1111674261360351097</id><published>2012-11-28T11:50:00.000-08:00</published><updated>2012-11-28T11:50:15.152-08:00</updated><title type='text'>Eclipse lunar ocorre hoje e será o último do ano</title><content type='html'>&lt;br /&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6IwOfXLtVkAVDnR4PFAqZZPJxdD1F-sIkOeczRLBv81zd0QGjEeNtTu4g1U8FGtMWlkxpngod5BIcuLx76KmTrlMViHdx6Mjo5vPh83csqaA7vQLodnDpdNluyI7nUt9kc2Apg-llxxVF/s1600/lunar-eclipse-december-2010-nasa-keithburns.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;br /&gt;&lt;img border=&quot;0&quot; height=&quot;512&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6IwOfXLtVkAVDnR4PFAqZZPJxdD1F-sIkOeczRLBv81zd0QGjEeNtTu4g1U8FGtMWlkxpngod5BIcuLx76KmTrlMViHdx6Mjo5vPh83csqaA7vQLodnDpdNluyI7nUt9kc2Apg-llxxVF/s640/lunar-eclipse-december-2010-nasa-keithburns.jpg&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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O eclipse lunar penumbral será o último eclipse do ano e ocorrerá nesta quarta-feira, 28 de novembro. O tipo de fenômeno será quase imperceptível. Ele poderá ser observado nas regiões árticas, grande parte da Ásia, na Europa, Austrália, Nova Zelândia, Havaí e também na África, com exceção do extremo oeste do continente. O fenômeno não será visível no Brasil.&lt;/div&gt;
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Segundo o site Time and Date, o eclipse começará às 10h14, no horário de Brasília, e terá destaque por volta das 12h33, terminando às 14h51. O início do fenômeno não será visível a olho nu. Cerca de 30 minutos antes e depois do ápice do eclipse, uma luz acinzentada poderá ser vista ao longo da lua.&lt;/div&gt;
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Os eclipses lunares podem ser totais, parciais ou penumbrais. No eclipse total, a Lua fica completamente encoberta pela sombra da Terra. Se não ficasse totalmente imersa, o eclipse seria parcial. Já o eclipse penumbral é quase imperceptível.&lt;/div&gt;
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&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;color: #333333;&quot;&gt;Fonte:&amp;nbsp;&lt;/span&gt;&lt;a href=&quot;http://www.correiodoestado.com.br/noticias/eclipse-lunar-penumbral-ocorre-hoje-e-sera-o-ultimo-do-ano_167415/&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://www.correiodoestado.com.br/noticias/eclipse-lunar-penumbral-ocorre-hoje-e-sera-o-ultimo-do-ano_167415/&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;
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</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/1111674261360351097/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/eclipse-lunar-ocorre-hoje-e-sera-o.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/1111674261360351097'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/1111674261360351097'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/eclipse-lunar-ocorre-hoje-e-sera-o.html' title='Eclipse lunar ocorre hoje e será o último do ano'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6IwOfXLtVkAVDnR4PFAqZZPJxdD1F-sIkOeczRLBv81zd0QGjEeNtTu4g1U8FGtMWlkxpngod5BIcuLx76KmTrlMViHdx6Mjo5vPh83csqaA7vQLodnDpdNluyI7nUt9kc2Apg-llxxVF/s72-c/lunar-eclipse-december-2010-nasa-keithburns.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-5252799631930006269</id><published>2012-11-25T21:13:00.001-08:00</published><updated>2012-11-25T21:25:36.653-08:00</updated><title type='text'>Imagem do Dia: Cascatas de Areia Escura em Marte</title><content type='html'>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;
&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbaLpK1Y0-lHwpY0bFx7W-jrEW8NwHPYwdSzex9PWi9kRNS9ZUojD4ilNRElnX1AZbPaCerAz9ceKLplb_icpkOQEPrtoJPsubzYUT3Fwuc6N0H7zR02po8mcGE2v2B9z9mbNTNDN3BTk6/s1600/almosttrees_mro_960+(1).jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;480&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbaLpK1Y0-lHwpY0bFx7W-jrEW8NwHPYwdSzex9PWi9kRNS9ZUojD4ilNRElnX1AZbPaCerAz9ceKLplb_icpkOQEPrtoJPsubzYUT3Fwuc6N0H7zR02po8mcGE2v2B9z9mbNTNDN3BTk6/s640/almosttrees_mro_960+(1).jpg&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
&lt;span style=&quot;background-color: white; font-size: 16px; line-height: 30.383333206176758px; text-align: justify;&quot;&gt;&lt;span style=&quot;color: orange; font-family: Georgia, Times New Roman, serif;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/span&gt;
&lt;span style=&quot;background-color: white; font-size: 16px; line-height: 30.383333206176758px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;Essas feições podem até parecer árvores em Marte, mas não são. Grupos de listras na cor marrom escura têm sido fotografados pela sonda Mars Reconnaissance Orbiter derretendo em dunas de areias rosadas cobertas com gelo claro. A imagem acima foi feita em Abril de 2008 perto do polo norte de Marte. Naquela época, a areia escura, localizada no interior das dunas de areia de Marte, tornavam-se cada vez mais visíveis à medida que o Sol da primavera derretia o gelo de dióxido de carbono que tem uma coloração mais clara. Quando esse derretimento acontecia perto do topo da duna, a areia escura podia cair em forma de cascata duna abaixo deixando para trás listras escuras na superfície, listras essas que numa primeira olhada podem parecer árvores localizadas na frente das regiões mais claras, mas sem gerar sombras. Objetos com até 25 centímetros de diâmetros podem ser observados nessa imagem que se espalha por aproximadamente 1 k. Imagens mais detalhadas de algumas partes dessa imagem mostram plumas, como a mostrada abaixo de uma avalanche registrada em Marte, &amp;nbsp;indicando que o deslizamento de areia estava ocorrendo até mesmo quando a imagem estava sendo feita.&lt;/span&gt;&lt;/span&gt;&lt;br /&gt;
&lt;span style=&quot;background-color: white; font-size: 16px; line-height: 30.383333206176758px; text-align: justify;&quot;&gt;&lt;span style=&quot;color: orange; font-family: Georgia, Times New Roman, serif;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/span&gt;
&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;background-color: white; line-height: 30.383333206176758px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Times New Roman, serif;&quot;&gt;Fonte:&lt;/span&gt;&lt;span style=&quot;color: orange; font-family: Georgia, Times New Roman, serif;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;color: orange; font-family: Georgia, Times New Roman, serif;&quot;&gt;&lt;span style=&quot;line-height: 30.366666793823242px;&quot;&gt;&lt;a href=&quot;http://apod.nasa.gov/apod/ap121125.html&quot;&gt;http://apod.nasa.gov/apod/ap121125.html&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/5252799631930006269/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-cascatas-de-areia-escura.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/5252799631930006269'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/5252799631930006269'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-cascatas-de-areia-escura.html' title='Imagem do Dia: Cascatas de Areia Escura em Marte'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbaLpK1Y0-lHwpY0bFx7W-jrEW8NwHPYwdSzex9PWi9kRNS9ZUojD4ilNRElnX1AZbPaCerAz9ceKLplb_icpkOQEPrtoJPsubzYUT3Fwuc6N0H7zR02po8mcGE2v2B9z9mbNTNDN3BTk6/s72-c/almosttrees_mro_960+(1).jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-6338394650688498700</id><published>2012-11-25T21:07:00.000-08:00</published><updated>2012-11-25T21:07:19.457-08:00</updated><title type='text'>Deserto de Danakil: conheça uma das paisagens mais bizarras da Terra</title><content type='html'>&lt;br /&gt;
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Gases tóxicos, lagos cheios de enxofre que fervem a 90°C, temperaturas altíssimas, areia movediça com ácido sulfúrico e vulcões fumegantes. A descrição do Deserto de Danakil, situado no nordeste da Etiópia, não é nem um pouco convidativa. Não é por menos que o local é conhecido como o “inferno na Terra”. Mas as fotos mostram que o inferno não é tão ruim assim. É lindo. E tem as paisagens mais bizarras do planeta.&lt;/div&gt;
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É lá que fica a cratera vulcânica Dallol, pouco conhecida e raramente visitada – mas extraordinária. A paisagem única é formada por montanhas de sal e enxofre, gêiseres de gases venenosos e pequenas piscinas de ácidos coloridas.&lt;/div&gt;
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Dallol é um dos lugares mais remotos da Terra e &amp;nbsp;poucas pessoas vivem lá, o que não é de se admirar. Afinal, quem gostaria de viver em um lugar tão perigoso como esse?&lt;/div&gt;
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Além de tudo, Dallol detém atualmente o recorde da mais alta temperatura média para uma posição habitada na Terra, com temperatura anual média de 34°C.&lt;/div&gt;
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As cores deslumbrantes vistas no local, como branco, amarelo, verde e vermelho, surgem devido à grande presença de enxofre, óxido de ferro, sal e outros minerais.&lt;/div&gt;
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Embora seja muito perigoso, algumas pessoas sonham em conhecer o inferno terrestre e pagam caro por um tour. O passeio começa em Adis Abeba, a capital da Etiópia. De lá, é necessário pegar carona em uma caravana de camelos ou passar um dia inteiro viajando de carro.&lt;/div&gt;
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Golpes políticos, revoltas, seca e fome na Etiópia colocaram Dallol fora do mapa por muito tempo. A área não era aberta à estrangeiros até 2001, e até hoje o local não é muito seguro. Quem visita a região ainda corre o perigo de virar refém de Ahmed Ela, a aldeia mais próxima ao vulcão.&lt;/div&gt;
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&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;color: #333333; font-family: Arial, Verdana, sans-serif; line-height: 18px;&quot;&gt;Fonte:&amp;nbsp;&lt;/span&gt;&lt;a href=&quot;http://hypescience.com/deserto-de-danakil-conheca-as-paisagens-mais-bizarras-da-terra/&quot; style=&quot;font-family: Arial, Verdana, sans-serif; line-height: 18px;&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://hypescience.com/deserto-de-danakil-conheca-as-paisagens-mais-bizarras-da-terra/&lt;/span&gt; &lt;/a&gt;&lt;span style=&quot;color: #333333; font-family: Arial, Verdana, sans-serif; line-height: 18px;&quot;&gt;/&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;font-family: Arial, Verdana, sans-serif;&quot;&gt;&lt;span style=&quot;line-height: 18px;&quot;&gt;&lt;a href=&quot;http://www.kuriositas.com/2011/12/dallol-worlds-weirdest-volcanic-crater.html&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://www.kuriositas.com/2011/12/dallol-worlds-weirdest-volcanic-crater.html&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot;color: #333333;&quot;&gt; /&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;color: orange; font-family: Arial, Verdana, sans-serif;&quot;&gt;&lt;span style=&quot;line-height: 18px;&quot;&gt;&lt;a href=&quot;http://www.odditycentral.com/pics/people-actually-pay-to-travel-to-hell-on-earth.html&quot;&gt;http://www.odditycentral.com/pics/people-actually-pay-to-travel-to-hell-on-earth.html&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/6338394650688498700/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/deserto-de-danakil-conheca-uma-das.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6338394650688498700'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6338394650688498700'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/deserto-de-danakil-conheca-uma-das.html' title='Deserto de Danakil: conheça uma das paisagens mais bizarras da Terra'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8eMGTLqSsnUpjqrzT6wLC_ijUxx3wRV2TA4ivwB_8XQ3NmQkBS8EgMF_oxy7-_oyF4tuM1YSVnBEYs0ufIKu45z5Rudg5L0RHtMDkjC5CNq7ZTjfA4h-5jSM9PVInMV_6G0YDyOUImIcB/s72-c/dallol-volcano-ethiopia-2-600x398.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-1567892687411197761</id><published>2012-11-23T01:04:00.001-08:00</published><updated>2012-11-23T01:26:00.037-08:00</updated><title type='text'>Curiosity encontra sinais de vida em Marte?</title><content type='html'>&lt;br /&gt;
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Uma análise detalhada do solo marciano pode trazer revelações surpreendentes… ou não: a NASA decidiu manter as informações em sigilo enquanto não tiver evidências sólidas que confirmem os resultados já obtidos.&lt;/div&gt;
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Usando um laboratório portátil (chamado SAM) da sonda Curiosity, cientistas da NASA estão investigando a composição de uma amostra de solo coletada em Marte. Os dados chegam gradualmente e, nas palavras de John Grotzinger, o principal pesquisador da missão, “a equipe de ciência está ocupada ‘mastigando’ conforme eles vêm”.&lt;/div&gt;
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Por que tanto segredo? Uma experiência anterior mostrou como a cautela é importante quando se trata de estudos cercados de especulações e expectativa: ao analisar uma amostra de ar no planeta vermelho, a equipe encontrou traços de metano (gás que pode ser produzido por organismos vivos e, assim, poderia indicar que houve vida em Marte); contudo, os cientistas decidiram “segurar” a novidade.&lt;/div&gt;
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“Nós sabíamos desde o começo que havia o risco de ter trazido ar da Flórida [de onde a sonda foi lançada]“, explica Grotzinger. “Nós tínhamos que diminuir isso, então fizemos uma nova medição”. Desta vez, não havia qualquer sinal de metano, e a NASA escapou de divulgar uma informação incorreta e ter que voltar atrás.&lt;/div&gt;
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No caso da análise atual, Grotzinger diz que pode levar semanas até que a equipe possa divulgar informações precisas. Até lá, curiosos de plantão têm que ficar na espera.&lt;/div&gt;
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</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/1567892687411197761/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/curiosity-encontra-sinais-de-vida-em.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/1567892687411197761'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/1567892687411197761'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/curiosity-encontra-sinais-de-vida-em.html' title='Curiosity encontra sinais de vida em Marte?'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjY4tfJ_lsHK5q9xRJre8fYP3nc0zrbvAJrV6gONQmFMFdVEiOuV899tpwcLcSN5ybJTTzFFX2wQ22Bw8TrA6KY11FwtSEjkjT2vntDKIxihCDLudAIo2PAwVY-PBSlhzKq9h92ugFnliOz/s72-c/curiosity-marte.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-1209039455935663835</id><published>2012-11-21T10:57:00.000-08:00</published><updated>2012-11-21T10:57:20.452-08:00</updated><title type='text'>Imagem do Dia: Aparições de Auroras na Irlanda </title><content type='html'>&lt;div class=&quot;separator&quot; style=&quot;clear: both; text-align: center;&quot;&gt;
&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7iEPU99ekm8vqLpSYcfY3WbdUU93r5p2MIxHCqxlGkKtVAJ01NwvbZ4XfVMeLTeB0mYI1a0QU8B4rVpl1x8sRbEQuXCttGyqVaywDeHat6OUC-BPu5_S5qwInBBeHQbhBCyZVorjRWIgp/s1600/aurora_islandia_01.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;358&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7iEPU99ekm8vqLpSYcfY3WbdUU93r5p2MIxHCqxlGkKtVAJ01NwvbZ4XfVMeLTeB0mYI1a0QU8B4rVpl1x8sRbEQuXCttGyqVaywDeHat6OUC-BPu5_S5qwInBBeHQbhBCyZVorjRWIgp/s640/aurora_islandia_01.jpg&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
&lt;br /&gt;
&lt;span style=&quot;background-color: white;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Arial, Helvetica, sans-serif; font-size: 16px; line-height: 30.383333206176758px; margin: 0px; padding: 0px; text-align: justify;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/span&gt;
&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5s5_jLGcRTDVmesnSRJF0Gi-jh3271GcnDuJWcMHltWmmEQLdBd8sXXBNpAkbKcRc2ePXlhKvLsWB9VuIYlL9kLSHzliUakfYih50jd54UAqE1AP1Dv-rbMoG-nyZPg4i1mg5EH1QlO6U/s1600/aurora_islandia_02.jpg&quot; imageanchor=&quot;1&quot; style=&quot;clear: left; float: left; margin-bottom: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;213&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5s5_jLGcRTDVmesnSRJF0Gi-jh3271GcnDuJWcMHltWmmEQLdBd8sXXBNpAkbKcRc2ePXlhKvLsWB9VuIYlL9kLSHzliUakfYih50jd54UAqE1AP1Dv-rbMoG-nyZPg4i1mg5EH1QlO6U/s320/aurora_islandia_02.jpg&quot; width=&quot;320&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;background-color: white;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Arial, Helvetica, sans-serif; font-size: 16px; line-height: 30.383333206176758px; margin: 0px; padding: 0px; text-align: justify;&quot;&gt;É&lt;/span&gt;&lt;span style=&quot;font-family: Georgia, Arial, Helvetica, sans-serif; font-size: 16px; line-height: 30.383333206176758px; margin: 0px; padding: 0px; text-align: justify;&quot;&gt;&amp;nbsp;até mesmo difícil imaginar paisagem como a mostrada nessas imagens, uma impressionante aurora boreal, surgindo do horizonte norte e refletindo num lago subártico, lago esse repleto de pedaços de gelo, enquanto que no céu o asterismo da Grande Concha e outras constelações circumpolares contornam a cena surreal. As fotos aqui mostradas foram feitas no dia 19 de Setembro de 2012, durante uma tempestade de auroras, uma das mais ativas do ano, usando uma lente de olho de peixe na cidade de Jokulsarlon na Islândia. Os padrões que constantemente se alteram consistem de raios paralelos que estão todos orientados com a direção local das linhas do campo geomagnético. Na foto abaixo, além de toda a beleza já mostrada na foto acima, um brilhante meteoro, mais brilhante que o planeta Vênus aparece junto com as luzes do norte. Felizmente, o clima cooperou com essa bela aparição.&lt;/span&gt;&lt;/span&gt;&lt;br /&gt;
&lt;span style=&quot;background-color: white;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Arial, Helvetica, sans-serif; font-size: 16px; line-height: 30.383333206176758px; margin: 0px; padding: 0px; text-align: justify;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/span&gt;
&lt;span style=&quot;background-color: white;&quot;&gt;&lt;span style=&quot;line-height: 30.366666793823242px; margin: 0px; padding: 0px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-family: Georgia, Arial, Helvetica, sans-serif; font-size: x-small;&quot;&gt;Fonte: &lt;a href=&quot;http://epod.usra.edu/blog/2012/11/curtains-of-northern-lights-above-jokulsarlon-iceland.html&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://epod.usra.edu/blog/2012/11/curtains-of-northern-lights-above-jokulsarlon-iceland.html&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/1209039455935663835/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-aparicoes-de-auroras-na.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/1209039455935663835'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/1209039455935663835'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-aparicoes-de-auroras-na.html' title='Imagem do Dia: Aparições de Auroras na Irlanda '/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7iEPU99ekm8vqLpSYcfY3WbdUU93r5p2MIxHCqxlGkKtVAJ01NwvbZ4XfVMeLTeB0mYI1a0QU8B4rVpl1x8sRbEQuXCttGyqVaywDeHat6OUC-BPu5_S5qwInBBeHQbhBCyZVorjRWIgp/s72-c/aurora_islandia_01.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-3740943754518200176</id><published>2012-11-21T10:49:00.004-08:00</published><updated>2012-11-21T10:49:43.227-08:00</updated><title type='text'>A Reentrada da Nave Soyuz</title><content type='html'>&lt;br /&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigPRanFgaqw1otaRNfh6dVd1mSjs3wGQsXhUx78lWfqGVQhEXyoB-1VZglspBZGW9uYIYYUAnUWCxCiiYgKa1V5ADrPKOmCHtY9yBpPnOrCmgWGtrIvkBzVqSZLg1PuBEV_HnyNlqDyYNL/s1600/707935main_iss034e005039_946-710.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;480&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigPRanFgaqw1otaRNfh6dVd1mSjs3wGQsXhUx78lWfqGVQhEXyoB-1VZglspBZGW9uYIYYUAnUWCxCiiYgKa1V5ADrPKOmCHtY9yBpPnOrCmgWGtrIvkBzVqSZLg1PuBEV_HnyNlqDyYNL/s640/707935main_iss034e005039_946-710.jpg&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Georgia, Arial, Helvetica, sans-serif; font-size: 16px; line-height: 30.383333206176758px; padding: 0px 0px 14px 1px; text-align: justify;&quot;&gt;
&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;A&lt;/span&gt;&lt;span style=&quot;background-color: white; line-height: 30.383333206176758px;&quot;&gt;&amp;nbsp;imagem mostra da Estação Espacial Internacional a descida e o começo da reentrada na atmosfera da Terra da nave Soyuz TMA-05M, deixando um rastro de plasma para trás à medida que a tripulação da Expedição 33 começa a sua descida antes de pousar nas estepes do Cazaquistão.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;A Comandante da Expedição 33 Suni Williams e os Engenheiros de Voos Yuri Malenchenko e Aki Hoshide pousaram à nordeste da remota cidade de Arkalyk às 23:56 do domingo, hora de Brasília, dia 18 de Novembro de 2012, 7:56 da manhã de segunda-feira, dia 19 de Novembro de 2012, hora do Cazaquistão.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-family: Georgia, Arial, Helvetica, sans-serif; font-size: x-small;&quot;&gt;&lt;span style=&quot;line-height: 30.366666793823242px;&quot;&gt;Fonte:&lt;span style=&quot;color: orange;&quot;&gt; &lt;a href=&quot;http://www.nasa.gov/multimedia/imagegallery/image_feature_2397.html&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://www.nasa.gov/multimedia/imagegallery/image_feature_2397.html&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/3740943754518200176/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/a-reentrada-da-nave-soyuz.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/3740943754518200176'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/3740943754518200176'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/a-reentrada-da-nave-soyuz.html' title='A Reentrada da Nave Soyuz'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEigPRanFgaqw1otaRNfh6dVd1mSjs3wGQsXhUx78lWfqGVQhEXyoB-1VZglspBZGW9uYIYYUAnUWCxCiiYgKa1V5ADrPKOmCHtY9yBpPnOrCmgWGtrIvkBzVqSZLg1PuBEV_HnyNlqDyYNL/s72-c/707935main_iss034e005039_946-710.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-6586135716110640603</id><published>2012-11-20T10:44:00.000-08:00</published><updated>2012-11-20T10:44:10.400-08:00</updated><title type='text'>Imagem do Dia: Marcas do Curiosity em Rocknest</title><content type='html'>&lt;br /&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaJd0H34SLCLgyIq-ZBmG4BL6AhnZaT1yLfR8vE1ocAw1zVP0iXknmy5nQR6WmVUq8G0dfBiivBH_9PHqeczdShBTIe7SPI-agDk6LKQQo00IgDy_NIDMfUJlRnbwguHJNeP1Ob5nwhfG5/s1600/707067main_Vasavada-1pia16199_full.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;640&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaJd0H34SLCLgyIq-ZBmG4BL6AhnZaT1yLfR8vE1ocAw1zVP0iXknmy5nQR6WmVUq8G0dfBiivBH_9PHqeczdShBTIe7SPI-agDk6LKQQo00IgDy_NIDMfUJlRnbwguHJNeP1Ob5nwhfG5/s640/707067main_Vasavada-1pia16199_full.jpg&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;&lt;br /&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;A imagem acima mostra as cinco escavadas feitas pelo rover Curiosity do Mars Science Laboratory, no já famoso local de pesquisa conhecido como Rocknest, no Planeta Vermelho. Essa imagem foi feita no dia 9 de Novembro de 2012, o nonagésimo terceiro dia de trabalho do Curiosity em Marte, também conhecido como Sol 93. A quinta e última escavada foi feita no mesmo dia e é a segunda da esquerda para a direita. Cada uma dessas escavadas tem aproximadamente 5 cm de largura.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;Mas por que o rover Curiosity da NASA escavou 5 vezes esse terreno? As primeiras duas escavadas e parte da terceira foram usadas para calibrar a superfície interna do mecanismo de amostragem manual. A terceira, quarta e quinta escavada foram feitas para recolher amostras que foram analisadas no Sample Analysis at Mars, ou SAM. O SAM, é um conjunto de instrumentos responsável por fazer análises químicas e mineralógicas no interior do rover.&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;font-size: x-small;&quot;&gt;Fonte:&lt;a href=&quot;http://www.marstravel.org/2012/11/five-scoops-at-mars-rocknest.html?utm_source=feedburner&amp;amp;utm_medium=email&amp;amp;utm_campaign=Feed%3A+marstravel%2FVezy+%28Mars+Travel%29&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;http://www.marstravel.org/2012/11/five-scoops-at-mars-rocknest.html?utm_source=feedburner&amp;amp;utm_medium=email&amp;amp;utm_campaign=Feed%3A+marstravel%2FVezy+%28Mars+Travel%29&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/6586135716110640603/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-marcas-do-curiosity-em.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6586135716110640603'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/6586135716110640603'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-marcas-do-curiosity-em.html' title='Imagem do Dia: Marcas do Curiosity em Rocknest'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaJd0H34SLCLgyIq-ZBmG4BL6AhnZaT1yLfR8vE1ocAw1zVP0iXknmy5nQR6WmVUq8G0dfBiivBH_9PHqeczdShBTIe7SPI-agDk6LKQQo00IgDy_NIDMfUJlRnbwguHJNeP1Ob5nwhfG5/s72-c/707067main_Vasavada-1pia16199_full.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-7001862474576522954</id><published>2012-11-18T04:28:00.000-08:00</published><updated>2012-11-18T05:04:58.727-08:00</updated><title type='text'>Imagem do dia: O Anjo do Norte</title><content type='html'>&lt;br /&gt;
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&lt;a href=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMcRUIkmgZDFV-nJ6tkfDydnrCtViRd_PVdvpz-j12Cw4I-6JLODKqUlLM5eiVvTDpWsEJJlS-qjUiGqgv-vc340ABln2vQQ7IliUm_3jK81JjoeCuwnboDPaq652gcJevl7SmUiSjL08j/s1600/anjo_norte.jpg&quot; imageanchor=&quot;1&quot; style=&quot;margin-left: 1em; margin-right: 1em;&quot;&gt;&lt;img border=&quot;0&quot; height=&quot;424&quot; src=&quot;https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMcRUIkmgZDFV-nJ6tkfDydnrCtViRd_PVdvpz-j12Cw4I-6JLODKqUlLM5eiVvTDpWsEJJlS-qjUiGqgv-vc340ABln2vQQ7IliUm_3jK81JjoeCuwnboDPaq652gcJevl7SmUiSjL08j/s640/anjo_norte.jpg&quot; width=&quot;640&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; line-height: 30.383333206176758px;&quot;&gt;A imagem acima mostra a gigantesca escultura conhecida como Angel of the North, localizada em Gateshead na Inglaterra com um belo halo formado pelo rastro das estrelas. Essa escultura foi feita com 200 toneladas de aço e mostra um anjo com asas de avião e mede 20 metros de altura, com as asas medindo 54 metros de envergadura, fazendo dela uma escultura tão alta como os famosos ônibus de dois andares de Londres com as asas do tamanho de um avião. O único mistério nessa foto é quem é que está aos pés do anjo?&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px;&quot;&gt;A escultura foi desenhada por Antony Gormely e foi completada no ano de 199&lt;span style=&quot;color: white;&quot;&gt;8.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;span style=&quot;background-color: white; font-family: Georgia, Arial, Helvetica, sans-serif; margin: 0px; padding: 0px;&quot;&gt;Fonte:&lt;span style=&quot;color: white;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;line-height: 30.383333206176758px; margin: 0px; padding: 0px; text-align: left;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;margin: 0px; padding: 0px;&quot;&gt;&lt;span style=&quot;background-color: white; margin: 0px; padding: 0px; text-decoration: initial;&quot;&gt;&lt;span style=&quot;color: orange; font-family: Georgia, Times New Roman, serif;&quot;&gt;&lt;a href=&quot;http://www.universetoday.com/98516/astrophoto-angel-of-the-north-gets-a-halo/&quot; style=&quot;margin: 0px; padding: 0px; text-decoration: initial;&quot;&gt;http://www.universetoday.com/98516/astrophoto-angel-of-the-north-gets-a-halo/&lt;/a&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
</content><link rel='replies' type='application/atom+xml' href='http://mecanicadouniverso.blogspot.com/feeds/7001862474576522954/comments/default' title='Postar comentários'/><link rel='replies' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-o-anjo-do-norte.html#comment-form' title='0 Comentários'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/7001862474576522954'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/4532048719556404954/posts/default/7001862474576522954'/><link rel='alternate' type='text/html' href='http://mecanicadouniverso.blogspot.com/2012/11/imagem-do-dia-o-anjo-do-norte.html' title='Imagem do dia: O Anjo do Norte'/><author><name>VenâncioNeto</name><uri>http://www.blogger.com/profile/15973513717331437221</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='29' height='32' src='//blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8BQpSpNcMA4MJm4qTghcOxaYRALKVECFAEsKTn3pLPAKxVzH4QFoQ3PI0-Jvv3Js9JQGWFkxz-58aOgGh6nabtmeHH-2EDUecC5_EiTLXGYF2qdfhk9V2ycGo-kZZdpU/s220/after-Foto016-crop-crop.jpg'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMcRUIkmgZDFV-nJ6tkfDydnrCtViRd_PVdvpz-j12Cw4I-6JLODKqUlLM5eiVvTDpWsEJJlS-qjUiGqgv-vc340ABln2vQQ7IliUm_3jK81JjoeCuwnboDPaq652gcJevl7SmUiSjL08j/s72-c/anjo_norte.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-4532048719556404954.post-6694967909370540689</id><published>2012-11-18T04:14:00.000-08:00</published><updated>2012-11-18T04:14:03.118-08:00</updated><title type='text'>Curiosity relata ventos marcianos</title><content type='html'>&lt;br /&gt;
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&lt;span style=&quot;color: orange; font-weight: normal;&quot;&gt;&amp;nbsp; &amp;nbsp;A NASA publicou os resultados das observações meteorológicas da sonda marciana&amp;nbsp;Curiosity.&lt;/span&gt;&lt;/h2&gt;
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&lt;span style=&quot;font-weight: normal;&quot;&gt;O aparelho descobriu alterações de pressão na atmosfera de Marte. A diferença de pressão entre o dia e a noite se revelou bastante notável, cerca de 10%. Isso acontece devido à formação de fortes correntes de ar ascendentes provocadas pelo aquecimento da superfície do planeta durante o dia.&lt;/span&gt;&lt;/h2&gt;
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As variações de pressão no planeta são acompanhadas pela alteração do nível de radiação, o que se explica pela ausência em Marte de um campo magnético protetor como o que existe na Terra. Além das variações diárias, a sonda também detetou a existência de alterações sazonais na pressão atmosférica.&lt;/div&gt;
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O&amp;nbsp;&lt;span style=&quot;font-style: italic;&quot;&gt;Curiosity&lt;/span&gt;&amp;nbsp; elaborou ainda uma carta dos ventos dentro da cratera de Gale. Segundo os especialistas da NASA, ela é bastante diferente da que esperavam.&lt;/div&gt;
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&lt;span style=&quot;font-size: x-small;&quot;&gt;Fonte:&lt;a href=&quot;http://portuguese.ruvr.ru/2012_11_17/curiosity-revela-ventos-marcianos/&quot;&gt;&lt;span style=&quot;color: orange;&quot;&gt;&amp;nbsp;http://portuguese.ruvr.ru/2012_11_17/curiosity-revela-ventos-marcianos/&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;
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