tag:blogger.com,1999:blog-71521539850903401302023-11-16T13:16:02.559+05:30இன்று ஓர் புதிய உலகம் காண்போம் I See A new World TodayEvery Moment the World Around You and me changes.sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.comBlogger69125tag:blogger.com,1999:blog-7152153985090340130.post-59721606670865875002016-05-18T15:22:00.000+05:302016-05-18T15:22:40.874+05:30DEBRIS FROM A STELLAR EXPLOSION: NASA VIDEO <div dir="ltr" style="text-align: left;" trbidi="on">
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dx5Ixa3OOhLUhjV7bZM2fSI9k8I-jCKAi0IGuK7AYZe8CbtvZOxHDTX8xXHsdiIsVDZDJBQPW2B7CWOGeLCPA' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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http://chandra.si.edu/photo/2016/tycho/</div>
sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-30629798302440237812016-05-10T20:34:00.001+05:302016-05-10T20:34:53.590+05:30Mercury Crossing The Sun 5/9/2016<iframe allowfullscreen="" frameborder="0" height="270" src="https://www.youtube.com/embed/tPA5H6rUTGA" width="480"></iframe><br />
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<script language="JavaScript" src="http://www.higopi.com/ucedit/script/tamil.js"></script>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-52948465153330262252016-04-28T17:32:00.004+05:302016-04-28T17:32:56.622+05:30A Vaccine for Cancer , Asthma <div dir="ltr" style="text-align: left;" trbidi="on">
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<section class="title_section clearfix"><h1 class="heading1" data-articletitle="">
Novel genetic method could lead to vaccine for cancer, asthma</h1>
<div class="time_cptn">
IANS | Apr 28, 2016, 04.01 PM IST</div>
</section><section class="highlight clearfix"><img alt="Novel genetic method could lead to vaccine for cancer, asthma (Getty Images)" data-imgid="52025477" src="http://timesofindia.indiatimes.com/thumb/msid-52025477,width-400,resizemode-4/52025477.jpg" title="Novel genetic method could lead to vaccine for cancer, asthma (Getty Images)" /><span class="img_cptn">Novel genetic method could lead to vaccine for cancer, asthma (Getty Images)</span></section><div class="section1">
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Danish
researchers have developed a novel genetic method that could lead to
the development of safe and effective vaccines for controlling diseases
such as cancer, asthma, and allergies.<br /> <br /> "The major research
breakthrough is that we have created a general and user-friendly
platform for the development of a special type of effective and safe
vaccines," said one of the researchers Adam Sander from University of
Copenhagen in Denmark.<br /> <br /> "The highly effective method opens a new
door for controlling diseases such as cancer, asthma, allergies and
cardiovascular diseases by means of vaccines," Sander pointed out.<br /> <br /> The method was described in the Journal of Nanobiotechnology.<br /> <br />
The idea behind the new technique is to mimic the structure of a virus.
When you have made the virus structure, it is used as a platform onto
which are glued harmless parts of the disease which you want to
vaccinate against.<br /> <br /> This creates
an overall virus-like structure, which constitutes an important danger
signal for the body. The immune system would therefore produce
antibodies against the disease -- a mechanism which has been difficult
to activate by traditional vaccines.<br /> <br />
The technology is also so effective that it can trick the immune system
into attacking the body's own cells, which may be used in the treatment
of a number of serious diseases, such as cancer, which are not caused
by foreign organisms, the study said.<br /> <br />
"Previously, it was a major problem to activate the immune system and
get an adequate response. We have lacked the possibility to easily
create a vaccine which mimics something that will trigger a natural
response from the body, but the new virus-like platform now allows us to
do so," Susan Thrane from University of Copenhagen noted.<br /> <br />
"In other words, we now have a unique technique that enables us to
develop vaccines against diseases that we have so far been unable to
fight," Thrane pointed out.<br /> <br /> "It
will be a game changer for low-income countries, which can now make
vaccines targeted at widespread diseases such as tuberculosis and
malaria. There is no doubt that the new results will have a significant
impact on tomorrow's vaccines and public health," Ali Salanti, professor
at University of Copenhagen, said. </div>
</div>
</div>
sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-18605610677734242922013-12-16T13:12:00.000+05:302013-12-16T13:12:02.124+05:30CHINA JADE RABBIT MOON LANDING<div dir="ltr" style="text-align: left;" trbidi="on">
<script src="http://player.ooyala.com/player.js?embedCode=F4dWJtaToP8tD2eYte_myTeoR09Y_wwu&width=560&height=315&deepLinkEmbedCode=F4dWJtaToP8tD2eYte_myTeoR09Y_wwu&video_pcode=RvbGU6Z74XE_a3bj4QwRGByhq9h2&playerBrandingId=7dfd98005dba40baacc82277f292e522&thruParam_tmgui[relatedVideo]=http%3A%2F%2Fcdn.api.ooyala.com%2Fv2%2Fassets%3Fwhere%3Dembed_code%2Bin%2B%2528%2527JnMjJraTpMUYRI4cWS6zUWvQ5pl70isE%2527%252C%2527%2527%252C%2527NteXdlZTrhe-8Wi3zrfBkVBVSRWN43ti%2527%252C%2527pidDc3ZTquk82rBVf4fXB95cRrbyZ_Dr%2527%252C%2527B1NncwaTrOQXEZ1y0XurJWQ-IqgzrGhw%2527%252C%2527B0MWNpaTo8xULS_-LbrLMaoF8h2ay3_z%2527%2529%26api_key%3DRvbGU6Z74XE_a3bj4QwRGByhq9h2.WFFAb%26expires%3D1640995199%26signature%3D%252FuUZAIWVALjVAlXnr%252FIOivs7Ai6GAPFoDzN9%252BPQvKLU"></script><br />
<script src="http://player.ooyala.com/player.js?embedCode=F4dWJtaToP8tD2eYte_myTeoR09Y_wwu&width=560&height=315&deepLinkEmbedCode=F4dWJtaToP8tD2eYte_myTeoR09Y_wwu&video_pcode=RvbGU6Z74XE_a3bj4QwRGByhq9h2&playerBrandingId=7dfd98005dba40baacc82277f292e522&thruParam_tmgui[relatedVideo]=http%3A%2F%2Fcdn.api.ooyala.com%2Fv2%2Fassets%3Fwhere%3Dembed_code%2Bin%2B%2528%2527JnMjJraTpMUYRI4cWS6zUWvQ5pl70isE%2527%252C%2527%2527%252C%2527NteXdlZTrhe-8Wi3zrfBkVBVSRWN43ti%2527%252C%2527pidDc3ZTquk82rBVf4fXB95cRrbyZ_Dr%2527%252C%2527B1NncwaTrOQXEZ1y0XurJWQ-IqgzrGhw%2527%252C%2527B0MWNpaTo8xULS_-LbrLMaoF8h2ay3_z%2527%2529%26api_key%3DRvbGU6Z74XE_a3bj4QwRGByhq9h2.WFFAb%26expires%3D1640995199%26signature%3D%252FuUZAIWVALjVAlXnr%252FIOivs7Ai6GAPFoDzN9%252BPQvKLU"></script>
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<h2>
Chinese state television releases video of the Chang'e-3 space probe crash
landing on the moon
</h2>
courtesy: www.telegraph.co.uk.</div>
sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-4881881585673038602013-01-03T21:54:00.004+05:302013-01-03T21:54:51.778+05:30BEST SCIENCE PICTURES OF 2012<div dir="ltr" style="text-align: left;" trbidi="on">
SEE THE BEST PICTURES OF SCIENCE IN 2012<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://cdn.zmescience.com/wp-content/uploads/2012/12/6-monster-ringworm.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://cdn.zmescience.com/wp-content/uploads/2012/12/6-monster-ringworm.jpg" height="213" width="320" /></a></div>
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<br />
please do not fail to see other pictures. They are incredible. including the solar flare. <br />
BY C<a href="http://www.zmescience.com/science/2012-pictures-of-the-year/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+zmescience+%28ZME+Science%29">LICKING THIS URL</a><br />
Courtesy: ZME Science.</div>
sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-21602022576403487982012-11-20T21:15:00.001+05:302012-11-20T21:15:39.136+05:30'DNA measurement can predict how long you will live' - Indian Express<a href="http://www.indianexpress.com/news/dna-measurement-can-predict-how-long-you-will-live/1033724">'DNA measurement can predict how long you will live' - Indian Express</a><br />
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<span style="color: blue;"><i><b>Researchers have claimed that biological age and life expectancy of a person can be predicted by measuring an individual's DNA. </b></i></span><br />
<span style="color: blue;"><i><b>Scientists at the University of East Anglia studied the length of chromosome caps - known as 'telomeres' - in a 320-strong wild population of Seychelles Warblers on a small isolated island. </b></i></span><br />
<span style="color: blue;"><i><b>"We saw that telomere length is a better indicator of life expectancy than chronological age - so by measuring telomere length we have a way of estimating the biological age of an individual - how much of its life it has used up," Lead researcher, Dr David S Richardson said. </b></i></span><br />
<span style="color: blue;"><i><b>The research shows that individuals differ radically in how quickly their telomeres shorten with age, and that having shorter telomeres at any age is associated with an increased risk of death. </b></i></span><br />
<span style="color: blue;"><i><b>Telomere length is a better indicator of future life-expectancy than actual age and may, therefore, be an indicator of biological age. </b></i></span><br />
<br />
<span style="color: purple;"><b>To read more:</b></span><br />
<br />
<span style="color: purple;"><b>Click on the URL above. </b></span><br />
sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-76113756117206641132012-10-26T18:46:00.002+05:302012-10-26T18:46:33.564+05:30What is half way between 1 and 9 ? <br />
What’s halfway between 1 and 9? If you’re like most people, you’d answer 5 or 4.5 – which is fine. But if you take a 6 year old kid on the other hand and ask him the same question, the odds are he’ll answer 3.<br />
<br />
Our Brains are wired to think NOT logically but logarithmatically.<br />
Please log on <a href="http://www.zmescience.com/science/math/brain-logarithm-not-linear-26102012/">here</a> for scientific research information.<br />
<br />
http://www.zmescience.com/science/math/brain-logarithm-not-linear-26102012/<br />
sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-50527784028716620152012-08-23T17:54:00.001+05:302012-08-23T17:54:10.132+05:30NASA's Curiosity rover takes its first drive on Mars - The Inquirer<a href="http://www.v3.co.uk/v3-uk/news/2200543/nasa-completes-first-test-drive-of-curiosity-rover-on-mars">NASA's Curiosity rover takes its first drive on Mars - The Inquirer</a><br />
<br />
One fine morning, u and I will walk on Mars, I hope.<br />
sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-47992551092742226862012-08-12T21:10:00.001+05:302012-08-12T21:10:01.976+05:30NASA TV Capture of MSL Curiosity Rover Landing on Mars<iframe allowfullscreen="" frameborder="0" height="344" src="http://www.youtube.com/embed/E88d4e1gYh0?fs=1" width="459"></iframe>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-39692384137602536562012-03-01T19:09:00.000+05:302012-03-01T19:09:20.002+05:30Neverending DNA and Immortal Worms<iframe src="http://www.youtube.com/embed/pHxF0dQEZqM?fs=1" allowfullscreen="" frameborder="0" height="270" width="480"></iframe>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-9234783429967367772012-01-20T19:34:00.000+05:302012-01-20T19:34:50.757+05:30Taking a picture of a Black Hole<div dir="ltr" style="text-align: left;" trbidi="on"><h1 class="singleh1"> Achieving the unbelievable: taking a picture of a black hole </h1><h1 class="singleh1"> </h1><div class="date-comments"> <div class="fl"> - Thu, Jan 19, 2012 </div><div class="fr">Post filled in: <a href="http://www.zmescience.com/category/space/astrophysics-space/" rel="category tag" title="View all posts in Astrophysics">Astrophysics</a>, <a href="http://www.zmescience.com/category/science/physics/" rel="category tag" title="View all posts in Physics">Physics</a>, <a href="http://www.zmescience.com/category/space/" rel="category tag" title="View all posts in Space">Space</a></div><div class="fr">Courtesy: www.zmescience.com </div></div><div class="entry"> <div class="share-post-before"> <div class="small-share-button"> </div><div class="small-share-button"><a href="http://www.facebook.com/sharer.php?u=http%3A%2F%2Fwww.zmescience.com%2Fscience%2Fphysics%2Fachieving-the-unbelievable-taking-a-picture-of-a-black-hole%2F&src=sp" name="fb_share" style="text-decoration: none;" type="button_count"><span class="fb_share_size_Small "><span class="FBConnectButton FBConnectButton_Small" style="cursor: pointer;"><span class="FBConnectButton_Text">Share</span></span><span class="fb_share_count_nub_right "></span><span class="fb_share_count fb_share_count_right"><span class="fb_share_count_inner">4</span></span></span></a></div><div class="small-share-button"> <span class="reddit_button" style="color: grey;"><a href="http://www.reddit.com/submit?url=http%3A%2F%2Fwww.zmescience.com%2Fscience%2Fphysics%2Fachieving-the-unbelievable-taking-a-picture-of-a-black-hole%2F&title=" target="http://www.reddit.com/submit?url=http%3A%2F%2Fwww.zmescience.com%2Fscience%2Fphysics%2Fachieving-the-unbelievable-taking-a-picture-of-a-black-hole%2F&title="><img src="http://www.redditstatic.com/spreddit5.gif" style="height: 2.3ex; margin-right: 1ex; vertical-align: top;" /></a><a href="http://www.reddit.com/submit?url=http%3A%2F%2Fwww.zmescience.com%2Fscience%2Fphysics%2Fachieving-the-unbelievable-taking-a-picture-of-a-black-hole%2F&title=" style="color: #336699; text-decoration: none;" target="_parent">submit</a></span></div></div><ul id="cevhershare" style="display: block; margin-left: -107px; position: fixed; top: 10px; width: 67px;"><li><br />
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</ul><a href="http://www.zmescience.com/tag/black-hole">Black Holes</a> are the least understood entities, so far, in the Universe. However, if there’s one thing scientists know for sure about them, it’s that they’re the most extreme environment in cosmos. Black Holes have such a powerful, relentless gravity pull that it swallows absolutely everything in its vicinity, even light gets absorbed with zero reflection. This makes it practically invisible, which is why they’re very difficult to study. Scientists are now set to embark on one of the most ambitious astrophysical ventures in history – taking a picture of a black hole. No, by no means is this a mad science stunt. The greatest minds of the scientific community have pledged their aid for the project and firmly believe this is possible, in an unprecedented worldwide combined effort, which only a few years ago would’ve been considered ludicrous.<br />
<blockquote>“Nobody has ever taken a picture of a black hole,” said Dimitrios Psaltis, an associate professor of astrophysics at the University of Arizona’s Steward Observatory, who along with Daniel Marrone, an assistant professor of astronomy at Steward Observatory, organized a conference in Tucson, Ariz. where the endeavor was announced “We are going to do just that.”<br />
“Even five years ago, such a proposal would not have seemed credible,” added Sheperd Doeleman, assistant director of the Haystack Observatory at Massachusetts Institute of Technology (MIT), who is the principal investigator of the Event Horizon Telescope, as the project is dubbed. “Now we have the technological means to take a stab at it.”</blockquote><div class="wp-caption alignright" id="attachment_11193" style="width: 195px;"><a href="http://www.zmescience.com/wp-content/uploads/2012/01/sgra_3d.lg_horiz.jpg"><img alt="Computer simulation of superheated plasma swirling around the black hole at the center of our galaxy. (Image by Scott Noble/RIT)" class="size-full wp-image-11193" height="185" src="http://www.zmescience.com/wp-content/uploads/2012/01/sgra_3d.lg_horiz.jpg" title="sgra_3d.lg_horiz" width="185" /></a><div class="wp-caption-text">Computer simulation of superheated plasma swirling around the black hole at the center of our galaxy. (Image by Scott Noble/RIT)</div></div>Einstein’s <a href="http://www.zmescience.com/tag/theory-of-relativity">Theory of Relativity</a> laid the foundation for the postulation of black holes, proving gravity does indeed influence light’s motion. Based on Einstein’s theory, fellow German physicist Karl Schwarzschild found a solution which described the gravitational field of a point mass and a spherical mass. Since then, scientists have observed, measured and conducted experiments for decades with significant breakthroughs, however it was never possible for them to directly observe or image a black hole. But if black holes don’t emit light, how is it possible to image them? Professor Doeleman explains this extremely ingenious project in a masterful way.<br />
<blockquote>“As dust and gas swirls around the black hole before it is drawn inside, a kind of cosmic traffic jam ensues,” Doeleman explained. “Swirling around the black hole like water circling the drain in a bathtub, the matter compresses and the resulting friction turns it into plasma heated to a billion degrees or more, causing it to ‘glow’ – and radiate energy that we can detect here on Earth.”</blockquote><h3>Capturing the Milky Way’s supermassive black hole halo</h3>Very clever, right? Once light passes the point of no return, or <a href="http://www.zmescience.com/tag/event-horizon">Event Horizon</a>, it is lost forever, however its outline can be studied – this is called the black hole’s shadow.<br />
Scientists have well founded reasons to believe that at the center of the Milky Way, like in most galaxies, if not all actually, lies a <a href="http://www.zmescience.com/tag/supermassive-black-hole">supermassive black hole</a> (one to four million times the mass of the sun). Estimated at 26,000 light years away, to have a chance at seeing it scientists say you’d need a very big telescope – a telescope the size of the entire Earth to be more exact.<br />
Of course, there’s a solution around this – connecting the biggest and most powerful radio telescopes in the world together. As such, 50 radio telescopes scattered around the globe have joined the effort, including the Submillimeter Telescope (SMT) on Mt. Graham in Arizona, telescopes on Mauna Kea in Hawaii and the Combined Array for Research in Millimeter-wave Astronomy (CARMA) in California. The astronomers hope once the biggest telescope in the world, the Atacama Large Millimeter Array (ALMA) in Chile, is finished it will provide the necessary power to provide the project, the Event Horizon Telescope as it was dubbed, with a great chance of success.<br />
<blockquote>“In essence, we are making a virtual telescope with a mirror that is as big as the Earth,” Doeleman said. “Each radio telescope we use can be thought of as a small silvered portion of a large mirror. With enough such silvered spots, one can start to make an image.”<br />
“The Event Horizon Telescope is not a first-light project, where we flip a switch and go from no data to a lot of data,” he added. “Every year, we increase its capabilities by adding more telescopes, gradually sharpening the image we see of the black hole.”</blockquote>General Relativity predicts that the bright outline defining the black hole’s shadow must be a perfect circle. If this shape will be found to be deviated in any manner, than it would prove that the <a href="http://www.zmescience.com/research/faster-than-light-sub-particle-at-cern-breaks-laws-of-physics/">Theory of Relativity is wrong</a>. On the contrary, if it is indeed a circle, little doubt would be left to cast.<br />
Bringing together radio telescopes around the globe requires an extraordinary global team effort, and I can only salute this initiative. What a milestone for science would it be if the researchers will manage to capture a black hole’s shadow.<br />
<blockquote>“This is not only the usual international conference where people come from all over the world because they are interested in sharing their research,” Psaltis said. “For the Event Horizon Telescope, we need the entire world to come together to build this instrument because it is as big as the planet. People are coming from all over the world because they have to work on it.”</blockquote><a href="http://uanews.org/node/44218">source</a><br />
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Read more: <a href="http://www.zmescience.com/science/physics/achieving-the-unbelievable-taking-a-picture-of-a-black-hole/#ixzz1k0UzX1MF" style="color: #003399;">http://www.zmescience.com/science/physics/achieving-the-unbelievable-taking-a-picture-of-a-black-hole/#ixzz1k0UzX1MF</a></div></div>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com1tag:blogger.com,1999:blog-7152153985090340130.post-43716994981601103452011-06-23T07:16:00.005+05:302011-06-23T07:21:05.105+05:30SOLAR FLARE !!!<div dir="ltr" style="text-align: left;" trbidi="on"><div class="separator" style="clear: both; text-align: center;"><a href="http://sdo.gsfc.nasa.gov/gallery/gallery/assets/preview/M2_CME.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="http://sdo.gsfc.nasa.gov/gallery/gallery/assets/preview/M2_CME.jpg" width="320" /></a></div><a href="http://sdo.gsfc.nasa.gov/gallery/gallery/assets/preview/M2_CME.jpg">http://sdo.gsfc.nasa.gov/gallery/gallery/assets/preview/M2_CME.jpg</a><br />
<br />
Please click and see the solar flare <br />
read more here....<br />
Read more here.....<br />
<br />
<span style="font-size: x-large;"><span class="title">A Solar Flare That Will Blow Your Socks Off</span></span> <br />
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<div class="submitted">Submitted by chandra on Mon, 06/20/2011 - 21:03.</div>By now many of you who follow the Sun have probably heard about the “solar flare that will blow your socks off,” which occurred in early morning of Sunday June 7. Here at the Chandra X-ray Center we watched it too -- with some pride as our colleagues downstairs with the Solar Dynamics Observatory were responsible for some of the movies that were being circulated around the Internet. On the one hand, an M2 is a medium-sized event and not usually a big deal. On the other hand, I also thought of a slogan written on my whiteboard a few years ago, “West limb worry.”</div>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-88385864694071562872011-03-26T07:42:00.000+05:302011-03-26T07:42:15.750+05:30SN 1979C: NASA's Chandra Finds Youngest Nearby Black Hole<a href="http://chandra.harvard.edu/photo/2010/sn1979c/">SN 1979C: NASA's Chandra Finds Youngest Nearby Black Hole</a>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-61332119492451592902011-01-11T14:25:00.000+05:302011-01-11T14:25:30.625+05:30SEE THE THREE SUNs phenomenon in China skies<a href="http://cosmos.bcst.yahoo.com/up/player/popup/?cl=23793629">http://cosmos.bcst.yahoo.com/up/player/popup/?cl=23793629</a>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-74633486203488324292010-10-09T11:49:00.002+05:302010-10-09T11:54:21.420+05:30Really Heart Breaking !!! Aftermath of a Supernova<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhXrV0senyV1zILzYA1uA1jGY8JDkXAs0NSeZFkF_5RiWEe8ZHgPwX6vlzC-wooH9X1YkvGsFmiiZevgRV9aTj3yV6MIC47DgFnAA6_87rDxlt-B2AyWv0kisU-RjWke4ktq09TQ-2idzu/s1600/supernova.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhXrV0senyV1zILzYA1uA1jGY8JDkXAs0NSeZFkF_5RiWEe8ZHgPwX6vlzC-wooH9X1YkvGsFmiiZevgRV9aTj3yV6MIC47DgFnAA6_87rDxlt-B2AyWv0kisU-RjWke4ktq09TQ-2idzu/s400/supernova.JPG" width="400" /></a></div><ul style="margin-left: 14px; padding-left: 0pt;"><li>327 is the aftermath of a star that exploded as a supernova.</li>
<li>In the composite, X-rays are blue, radio data are red and yellow, and infrared data show the stars in the field.</li>
<li>A rapidly spinning neutron star left behind is producing the wind of relativistic particles seen in X-rays.</li>
</ul><br clear="all" /> <em>G327.1-1.1 is the aftermath of a massive star that exploded as a <a href="http://chandra.harvard.edu/xray_sources/supernovas.html">supernova</a> in the Milky Way galaxy.</em> A highly magnetic, rapidly spinning neutron star called a <a href="http://chandra.harvard.edu/xray_sources/neutron_stars.html">pulsar</a> was left behind after the explosion and is producing a wind of relativistic particles, seen in X-rays by Chandra and XMM-Newton (blue) as well as in the radio data (red and yellow). This structure is called a <a href="http://chandra.harvard.edu/resources/glossaryP.html">pulsar wind nebula</a>. The likely location of the spinning neutron star is shown in the labeled version. The large red circle shows radio emission from the blast wave, and the composite image also contains infrared data from the 2MASS survey (red, green, and blue) that show the stars in the field.<br />
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இன்றைய செய்தி படங்களின் வழியே தெரிந்துகொள்ள <a href="http://www.boston.com/bigpicture/">கிளிக்குங்கள்.</a><br />
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<a href="http://www.boston.com/bigpicture/">COURTESY: </a><br />
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<div id="refHTML"></div><input id="gwProxy" type="hidden" /><!--Session data--><input id="jsProxy" onclick="jsCall();" type="hidden" /><div id="refHTML"></div>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-7702502373279488692009-06-20T10:11:00.000+05:302009-06-20T10:12:37.007+05:30Running Out of This World..News from NASA06.15.2009<br />--><a href="http://science.nasa.gov/headlines/y2009/images/running/audio/story.m3u">+ Play Audio</a> <a href="http://science.nasa.gov/headlines/y2009/images/running/audio/story.mp3">+ Download Audio</a> <a href="http://science.nasa.gov/programs/mail/sendfriend.asp">+ Email to a friend</a> <a href="http://science.nasa.gov/news/subscribe.asp">+ Join mailing list</a><br />June 15, 2009: International Space Station astronauts are getting a new toy in August – a treadmill. Famously named after comedian Stephen Colbert1, the new running machine will help astronauts stay fit, fighting off the bone loss and muscle decay2 that otherwise comes with space travel.<br />Just one problem: How do you run where there's no gravity to hold your feet to the ground?<br /><a href="http://science.nasa.gov/headlines/y2009/images/running/suniontvis.jpg"></a>"Bungee cords! You have to strap yourself to the treadmill," explains astronaut Sunita "Suni" Williams. And she's not joking.<br />In 2007, she ran the Boston Marathon on the station station's TVIS treadmill wrapped in bungee cords for the entire 26.2 mile race.<br />"It's not as bad as it sounds," she laughs.<br />Right: Suni Williams bungeed to the TVIS treadmill onboard the ISS. [<a href="http://ims.ivv.nasa.gov/mission_pages/station/multimedia/williams_treadmill.html">more</a>] [<a href="http://science.nasa.gov/headlines/y2009/images/running/suniontvis.jpg">larger image</a>]<br />TVIS stands for "Treadmill with Vibration Isolation System." It's the space station's original treadmill, designed to allow astronauts to run without vibrating delicate microgravity science experiments in adjacent labs. COLBERT, short for "Combined Operational Load Bearing External Resistance Treadmill", has a different kind of vibration-suppression system plus some other improvements3 for runners:<br />"I tried a COLBERT mockup at Johnson Space Center," says Williams. "It's broader than TVIS, so you don't have to watch out where your feet go. It allows a wider, more natural gait."<br />Williams spent a lot of time running during her six months on board the ISS, and she recalls what it's like:<br /><a href="http://science.nasa.gov/news/subscribe.htm">Sign up for EXPRESS SCIENCE NEWS delivery</a> "Just getting ready to run is a workout when you're weightless. Before all my training runs up there, I had to hook the toes of one foot under a handrail to keep from floating around while I struggled to put my sock and shoe on my other foot."<br />"I did this so often, it made calluses on top of my feet. Meanwhile, the calluses on the bottoms of my feet from running on Earth went away. It's totally upside down and backwards!" she laughs.<br />The treadmill's bungee harness "can be a bit uncomfortable," she continues. "During the marathon my foot sometimes went numb and tingly from the straps' pressure on my hip. Also, I had to use moleskin where the harness rubbed my neck raw."<br />And inside the close, still quarters of the space station, there are no gentle breezes to cool you down.<br />"Sweat globs onto you. It doesn't evaporate. I was soaking wet. During the marathon my hair was so sopping it flopped right in my face. We have little fans blowing on us but they don't do much good."<br />And Williams missed more than the soft winds of Earth.<br /><a href="http://science.nasa.gov/headlines/y2009/images/running/colbertpatch.jpg"></a>"On Earth, the crowd cheers you on and you enjoy the camaraderie and support of the other runners. In space it's a little bit lonely. I was by myself most of race. My crewmates did cheer me through the last half hour to the finish. That was great!"<br />"Also, one of the Soyuz astronauts floated sweet, juicy pieces of oranges to me – so refreshing!"<br />Right: The official patch for "COLBERT," the Combined Operational Load Bearing External Resistance Treadmill, due to launch onboard shuttle Discovery as early as August 2009. [<a href="http://www.nasa.gov/mission_pages/station/behindscenes/colberttreadmill.html">more</a>] [<a href="http://science.nasa.gov/headlines/y2009/images/running/colbertpatch.jpg">larger image</a>]<br />After the grueling run, Williams longed for a hot shower. "A sponge bath just isn't the same!" she says. Neither did she have a washer and dryer for cleaning her sweat-soaked running clothes. "I hung my drenched clothes near a fan and tied my sneakers to a handrail to air them out."<br />Williams is the only person to have run the Boston Marathon on Earth and in space—and she noted some interesting differences:<br />"I recovered faster after the space marathon. When you're floating, your muscles get to rest, so you can totally relax when you finish running – it's like being in a pool."<br />"Also, the space marathon didn't give me the same endorphin4 effect – that wonderful mood lift runners enjoy after running – as the Earth marathon did. I'm not sure why," she says. "We are loaded with only about 60% of our Earth weight on TVIS and its harness system, so maybe I just didn't work hard enough!"<br />Williams says she'd consider running another marathon on COLBERT. "If another astronaut challenges my time, maybe I’ll do it. I have a competitive nature."<br />When it comes to running, you could say "it's out of this world."<br /><a href="http://science.nasa.gov/programs/mail/sendfriend.asp">SEND THIS STORY TO A FRIEND</a><br />Author: <a href="mailto:dauna.d.coulter@nasa.gov">Dauna Coulter</a> Editor:<a href="mailto:james.a.phillips@earthlink.net"> Dr. Tony Phillips</a> Credit: <a onclick="openNASAWindow('http://science.nasa.gov'); return false;" href="http://science.nasa.gov/">Science@NASA</a><br />end notes<br />(1) Stephen Colbert hosts Comedy Central's "The Colbert Report." NASA chose the new treadmill’s name after he entered the Node 3 naming contest, asked his fans to post the name "Colbert," and won. NASA decided to honor him instead by naming the treadmill after him.<br />(2) Exercise is crucial to the astronauts' wellbeing. Without gravity, crewmembers lose bone and muscle mass and their cardiovascular system weakens. By exercising on COLBERT and other exercise devices, they can counteract these effects and keep their bodies in condition.<br />Williams says, "We need another treadmill up there. On the station, just like at the gym, sometimes you have to wait in line. The one of us in line will ask the one on the treadmill, 'When you gonna get off? I only have 30 minutes and I need to get on there.' COLBERT will allow more astronauts to get workouts more conveniently and frequently and longer."<br />(3) To create COLBERT, NASA started with a medical-grade treadmill -- the same kind used in most professional sports organization to train their athletes. Modifications included nickel plating the parts, changing the sheathing of the wires, and taking the rubber off the runner surface and anodizing it to give it texture for footing. The designers also developed a vibration isolation system for the new mill to prevent upsetting delicate science experiments. In addition, the engineers reinforced the rack that will hold the new treadmill, so sans mill it weighs about 2200 pounds -- much more than the rack on station now. Heavier mass makes it absorb loads better instead of passing them on to the space station itself. They also added special springs called ‘isolators’ that absorb impact. The combination of the springs and extra mass dampens out all the vibration from running. All of this is done without using any power.<br />Williams says: "Up on station, COLBERT won't sit on a gyro like TEVIS does. It took me a week to get used to running on TEVIS, which kind of floats on a gyro in a pit so you don't impart loads to the station. It makes it hard to get your balance. You feel kind of like a top, with the ground moving underneath you, until you get a rhythm going and get stabilized. COLBERT won’t be on a gyro so won’t require time to get used to. You can just hop on and run. It’s stiffer and feels more stable. It will also have programs to choose from: hill workouts, intervals etc. Not just manual. That will had variety and make for some more intense workouts, which will help improve our fitness and bone density more."<br />(4) For more information about running and endorphins, see <a href="http://www.nytimes.com/2008/03/27/health/nutrition/27best.html">http://www.nytimes.com/2008/03/27/health/nutrition/27best.html</a><br />NASA's Future: <a href="http://www.nasa.gov/mission_pages/exploration/main/index.html">US Space Exploration Policy</a>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com1tag:blogger.com,1999:blog-7152153985090340130.post-39899547246164455052009-06-13T07:41:00.001+05:302009-06-13T07:41:00.788+05:30Solar system's planets could spin out of control - video 25918325001 - space - 10 June 2009 - New Scientist<a href="http://www.newscientist.com/articlevideo/mg20227125.000/25918325001-solar-systems-planets-could-spin-out-of-control.html">Solar system's planets could spin out of control - video 25918325001 - space - 10 June 2009 - New Scientist</a><br /><br />Shared via <a href="http://addthis.com">AddThis</a><br /><br />sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-44484995204374821492009-05-11T18:29:00.002+05:302009-05-11T18:31:00.849+05:30A planetary Nebula Kohotek 4-55 , 4600 light years away<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguQUv49NxwKvVXausgC-36IRwW3yglNpyEmF5IxXl-W1f3GEzaThxRid02-F0atOpMqjihnq9iKw2nk7RVucxB3uvcB5pHPh3Voqn7Ec358z3mYj7kuqbOGdNGlye1g4K3DVq5xOZc8Dal/s1600-h/090510-hubble-nebula-pic-02.jpg"><img style="cursor:pointer; cursor:hand;width: 400px; height: 219px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguQUv49NxwKvVXausgC-36IRwW3yglNpyEmF5IxXl-W1f3GEzaThxRid02-F0atOpMqjihnq9iKw2nk7RVucxB3uvcB5pHPh3Voqn7Ec358z3mYj7kuqbOGdNGlye1g4K3DVq5xOZc8Dal/s400/090510-hubble-nebula-pic-02.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5334550425381687362" /></a><br />This Hubble image of planetary nebula Kohoutek 4-55 was taken by the Wide Field and Planetary Camera 2 on May 4, 2009. The colors represent the makeup of the various emission clouds in the nebula: red represents nitrogen, green represents hydrogen, and blue represents oxygen. K 4-55 is nearly 4,600 light-years away in the constellation Cygnus. Credit: NASA/ESA/JPL<br /><br />Courtesy: NASAsury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-46946132125851212472009-05-02T17:36:00.001+05:302009-05-02T17:39:02.717+05:30ISO to send bacteria into space..READ THE HINDUBangalore: In its first set of biological experiments, the Indian Space Research Organisation (ISRO) will send bacteria cells into space — and bring them back — in the second Space Capsule Recovery Experiment (SRE-2) scheduled for launch this year-end. <br /><br />Two life science experiments, using E.coli and photosynthetic bacteria, will help us understand cell division, genomics (genetic changes) and proteomics (changes in proteins) in microgravity conditions, said Kamanio Chattopadhyay, national coordinator of the Indian Microgravity Programme, who is coordinating scientific experiments for the mission.<br /><br />In the first experiment, an E.coli cell would be grown in a bio-reactor and brought back to the earth to carry out genomic studies. <br /><br />“When the experiment is recovered, we will explore why microgravity alters the growth of cells.” The experiment could be seen as a prelude to ISRO’s manned space mission slated for 2015, he said. <br /><br />“We know that astronauts experience physiological changes when they go into space, the most common being bone loss. NASA [National Aeronautics and Space Administration] has done experiments to prove that microgravity impacts genes. We need to understand this phenomenon better.” <br />FOR MORE DETAILS LOG ON TO:<br /><br /><a href="http://www.hindu.com/2009/05/02/stories/2009050256751800.htm">http://www.hindu.com/2009/05/02/stories/2009050256751800.htm</a>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-13933938331461835672009-04-22T02:28:00.003+05:302009-04-22T02:33:33.290+05:30Scientists discover a nearly Earth-sized planet<strong><strong>Scientists discover a nearly Earth-sized planet</strong> </strong> <br /><br /><br />An artist's impression of 'Planet e' , forground left, released by the European Organisation for Astronomical … .By JENNIFER QUINN, Associated Press Writer Jennifer Quinn, Associated Press Writer – Tue Apr 21, 1:50 pm ET<br />HATFIELD, England – In the search for Earth-like planets, astronomers zeroed in Tuesday on two places that look awfully familiar to home. One is close to the right size. The other is in the right place.<br /><br />European researchers said they not only found the smallest exoplanet ever, called Gliese 581 e, but realized that a neighboring planet discovered earlier, Gliese 581 d, was in the prime habitable zone for potential life.<br /><br />"The Holy Grail of current exoplanet research is the detection of a rocky, Earth-like planet in the 'habitable zone,'" said Michel Mayor, an astrophysicist at Geneva University in Switzerland.<br /><br />An American expert called the discovery of the tiny planet "extraordinary"<br /><br /><strong>PLEASE READ MORE BY CLICKING HERE:</strong><br /><a href="http://news.yahoo.com/s/ap/20090421/ap_on_sc/eu_britain_new_planet;_ylt=AqVTBj2dhR4GvvNbi4geXOnZn414">http://news.yahoo.com/s/ap/20090421/ap_on_sc/eu_britain_new_planet;_ylt=AqVTBj2dhR4GvvNbi4geXOnZn414</a>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-33638208320506419282009-03-24T18:00:00.001+05:302009-03-24T18:01:43.293+05:30Have U noticed !!<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxotiGP4JsxMld0NdNG6vVQS50Z5du7ynwmEiy1QYrEFwx7WlYzp-h3mqDXXAllglFdjawT3B0pT6eVnjpp3ONFJEXPcaqlq8ebFrUV6vSpeFBdW-5ZpZB2Gp9Te8SatLOTuuCIQmY0aHL/s1600-h/HaveUnoticed!.JPG"><img style="cursor:pointer; cursor:hand;width: 400px; height: 342px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxotiGP4JsxMld0NdNG6vVQS50Z5du7ynwmEiy1QYrEFwx7WlYzp-h3mqDXXAllglFdjawT3B0pT6eVnjpp3ONFJEXPcaqlq8ebFrUV6vSpeFBdW-5ZpZB2Gp9Te8SatLOTuuCIQmY0aHL/s400/HaveUnoticed!.JPG" border="0" alt=""id="BLOGGER_PHOTO_ID_5316730915953801058" /></a>sury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-1488667849477009132009-02-09T20:07:00.002+05:302009-02-09T20:12:37.376+05:30Monkeys are Creative !!!!!<a href="http://images.google.com/imgres?imgurl=http://scienceblogs.com/islandofdoubt/monkeys.jpg&imgrefurl=http://scienceblogs.com/islandofdoubt/2007/12/monkey_planet.php&usg=__GVHu-krOvGjdw912mGyUN0KLdyQ=&h=306&w=414&sz=119&hl=en&start=9&tbnid=GGxPNlwTGtYQnM:&tbnh=92&tbnw=125&prev=/images%3Fq%3Dmonkeys%26gbv%3D2%26hl%3Den">http://images.google.com/imgres?imgurl=http://scienceblogs.com/islandofdoubt/monkeys.jpg&imgrefurl=http://scienceblogs.com/islandofdoubt/2007/12/monkey_planet.php&usg=__GVHu-krOvGjdw912mGyUN0KLdyQ=&h=306&w=414&sz=119&hl=en&start=9&tbnid=GGxPNlwTGtYQnM:&tbnh=92&tbnw=125&prev=/images%3Fq%3Dmonkeys%26gbv%3D2%26hl%3Den</a><br /><br /><br />Enjoy your Friday by paying an objective and science-based visit to the Monkey Planet <br /><br /> Courtesy: http://scienceblogs.comsury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com0tag:blogger.com,1999:blog-7152153985090340130.post-90885061511259818772008-09-27T15:09:00.000+05:302008-09-27T15:11:50.733+05:30Power from Wave Energy !LONDON, England (CNN) -- The renewable energy sector has received a boost with the inauguration of the world's first commercial wave power project off the Portuguese coast.<br /><br />It is hoped that the Pelamis Wave Energy Converters will provide energy for 15,000 homes.<br /><br />more photos » Developed by a Scottish engineering company, Pelamis Wave Power Limited, the Pelamis Wave Energy Converters (PWEC) have been towed into position three miles off the coast of Agucadoura in north Portugal.<br /><br />The first phase of the project is using three PWEC to generate 2.25 megawatts of power at a cost of nine million euros.<br /><br />If successful, a second phase will see energy generation rise to 21 megawatts from a further 25 machines providing electricity for 15,000 Portuguese homes.<br /><br />The project is a joint venture between Pelamis Wave Power Limited, Babcock and Brown Ltd -- a global specialist asset manager, Energias de Portugal (EDP) and Portuguese energy group EFACEC.<br /><br />Named after the sea snake Pelamis, each machine measures 140 meters in length, is 3.5 meters wide and sits partially submerged in the sea.<br /><br /><br />"Effectively what you have is four long sections making up one machine. Between those sections are three small generating motors," he said.<br /><br />"The four sections are all joined by hydraulic rams. As the waves run through the machine it pushes the rams in and out. The action of the rams going to and fro pushes hydraulic fluid into a high-pressure reservoir. That high-pressure reservoir then releases the fluid at a steady rate through a generating motor." <br /><br />This power is fed down to a cable on the sea bed which then links back to a sub-station on shore where it is converted into useable electricity.<br /><br />The PWEC are, of course, reliant on the weather. Depending on the wave resource, Pelamis predict that the machines will on average produce 25-40 percent of their full power output over the course of a year. <br /><br />When the full array of 25 machines are in place it is calculated that around 60,000 tons of CO2 will be displaced.<br /><br />If wave power was fully exploited, the British Wind Energy Association estimates that one-two billion tons of CO2 could be displaced every year.<br /><br />Ian Fells, emeritus professor of energy conversion at Newcastle University in England, gave this latest development in wave power a cautious welcome.<br /><br />"It's extraordinarily difficult to design a machine that will cope with the extreme violence of waves. Some wave machines are under the surface all the time -- but they are not as well developed as yet. Pelamis lies in the surface and it remains to be seen how successful it will be," he told CNN.<br /><br />"But good luck to them. We'll just have to see how it operates over time and how it copes with serious weather conditions."<br /><br /><br />Professor Fells, a founding chairman of the New and Renewable Energy Center (NaREC) at Blyth, Northumberland, is convinced of the potential of wave power engineering but says it is still in its infancy.<br /><br />"A few years ago when I was talking about a 500-kilowatt Wavegen machine, I was asked by a reporter how many of these we would need to replace the two nuclear power stations in Scotland, and the answer is 10,000. That puts things into perspective." <br /><br />Courtesy: www.cnn.comsury sivahttp://www.blogger.com/profile/00589754677989702576noreply@blogger.com1