All Videos Tagged radiation (Atheist Nexus) - Atheist Nexus 2014-07-29T21:11:55Z http://www.atheistnexus.org/video/video/listTagged?tag=radiation&rss=yes&xn_auth=no ScienceCasts: The Radiation Belt Storm Probes tag:www.atheistnexus.org,2012-08-31:2182797:Video:2041568 2012-08-31T01:54:09.323Z Donegal http://www.atheistnexus.org/profile/Donegal <a href="http://www.atheistnexus.org/video/sciencecasts-the-radiation-belt-storm-probes"><br /> <img alt="Thumbnail" height="180" src="http://api.ning.com:80/files/nOrbut2V5yoVEWUqlmuARxnTvpH4FXYBEdx5OYooadZ-kUiXWDNdMqPcVJBJjfne6mSBBj6nbn1HGS1kXOYXZRpBZB8BbOKv/464108430.jpeg?width=240&amp;height=180" width="240"></img><br /> </a> <br></br>Most spacecraft try to avoid the Van Allen Belts, two doughnut-shaped regions around Earth filled with "killer electrons." This morning NASA launched two heavily-shielded spacecraft directly into the belts. The Radiation Belt Storm Probes are on a two-year mission to study the Van Allen Belts and to unravel the mystery of their… <a href="http://www.atheistnexus.org/video/sciencecasts-the-radiation-belt-storm-probes"><br /> <img src="http://api.ning.com:80/files/nOrbut2V5yoVEWUqlmuARxnTvpH4FXYBEdx5OYooadZ-kUiXWDNdMqPcVJBJjfne6mSBBj6nbn1HGS1kXOYXZRpBZB8BbOKv/464108430.jpeg?width=240&amp;height=180" width="240" height="180" alt="Thumbnail" /><br /> </a><br />Most spacecraft try to avoid the Van Allen Belts, two doughnut-shaped regions around Earth filled with "killer electrons." This morning NASA launched two heavily-shielded spacecraft directly into the belts. The Radiation Belt Storm Probes are on a two-year mission to study the Van Allen Belts and to unravel the mystery of their unpredictability. NASA | X-Class: A Guide to Solar Flares tag:www.atheistnexus.org,2011-08-10:2182797:Video:1511479 2011-08-10T03:22:25.602Z Donegal http://www.atheistnexus.org/profile/Donegal <a href="http://www.atheistnexus.org/video/nasa-x-class-a-guide-to-solar-flares"><br /> <img alt="Thumbnail" height="180" src="http://api.ning.com:80/files/1sJhi5SSZ5Gw0cQb64sKRXR2fLuiI01pSgo-w8kFe6uU-ZMf6*stMfv9qlzc9bLpLLavEDbA-LhYiJpGCLolFx2WHf92xB*o/662043307.jpeg?width=240&amp;height=180" width="240"></img><br /> </a> <br></br>Flares happen when the powerful magnetic fields in and around the sun reconnect. They're usually associated with active regions, often seen as sun spots, where the magnetic fields are strongest. Flares are classified according to their strength. The smallest ones are B-class, followed by C, M and X, the largest. Similar to the Richter scale for earthquakes, each letter… <a href="http://www.atheistnexus.org/video/nasa-x-class-a-guide-to-solar-flares"><br /> <img src="http://api.ning.com:80/files/1sJhi5SSZ5Gw0cQb64sKRXR2fLuiI01pSgo-w8kFe6uU-ZMf6*stMfv9qlzc9bLpLLavEDbA-LhYiJpGCLolFx2WHf92xB*o/662043307.jpeg?width=240&amp;height=180" width="240" height="180" alt="Thumbnail" /><br /> </a><br />Flares happen when the powerful magnetic fields in and around the sun reconnect. They're usually associated with active regions, often seen as sun spots, where the magnetic fields are strongest. Flares are classified according to their strength. The smallest ones are B-class, followed by C, M and X, the largest. Similar to the Richter scale for earthquakes, each letter represents a ten-fold increase in energy output. So an X is 10 times an M and 100 times a C. Within each letter class, there is a finer scale from 1 to 9. C-class flares are too weak to noticeably affect Earth. M-class flares can cause brief radio blackouts at the poles and minor radiation storms that might endanger astronauts. Although X is the last letter, there are flares more than 10 times the power of an X1, so X-class flares can go higher than 9. The most powerful flare on record was in 2003, during the last solar maximum. It was so powerful that it overloaded the sensors measuring it. They cut-out at X28. A powerful X-class flare like that can create long lasting radiation storms, which can harm satellites and even give airline passengers, flying near the poles, small radiation doses. X flares also have the potential to create global transmission problems and world-wide blackouts.<br /> <br /> This video is public domain and can be downloaded at: <a href="http://svs.gsfc.nasa.gov/goto?10109">http://svs.gsfc.nasa.gov/goto?10109</a><br /> <br /> Like our videos? Subscribe to NASA's Goddard Shorts HD podcast:<br /> <a href="http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html">http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html</a><br /> <br /> Or find NASA Goddard Space Flight Center on Facebook:<br /> <a href="http://www.facebook.com/NASA.GSFC">http://www.facebook.com/NASA.GSFC</a><br /> <br /> Or find us on Twitter:<br /> <a href="http://twitter.com/NASAGoddard">http://twitter.com/NASAGoddard</a> Get Well Soon Japan tag:www.atheistnexus.org,2011-03-18:2182797:Video:1165364 2011-03-18T06:12:38.274Z Black Atheists of America, Inc. http://www.atheistnexus.org/profile/BlackAtheistsofAmericaInc <a href="http://www.atheistnexus.org/video/get-well-soon-japan"><br /> <img src="http://api.ning.com:80/files/2GFWhxy9kZlYrhIcqzXsoiaPDZJN3rwK7JmogZBq3T6Rh0PP1myzHjsW8iscodWJNFU1nHVOv3F9vcSZ1wzgqA3mxkksHjTc/540227888.jpeg?width=240&amp;height=180" width="240" height="180" alt="Thumbnail" /><br /> </a><br />Good morning Japan... how you feeling today my luv? I know you've been shaking since Friday babe, please get well soon. Try to spare yourself much more time ... <a href="http://www.atheistnexus.org/video/get-well-soon-japan"><br /> <img src="http://api.ning.com:80/files/2GFWhxy9kZlYrhIcqzXsoiaPDZJN3rwK7JmogZBq3T6Rh0PP1myzHjsW8iscodWJNFU1nHVOv3F9vcSZ1wzgqA3mxkksHjTc/540227888.jpeg?width=240&amp;height=180" width="240" height="180" alt="Thumbnail" /><br /> </a><br />Good morning Japan... how you feeling today my luv? I know you've been shaking since Friday babe, please get well soon. Try to spare yourself much more time ... Symphony of Science - The Big Beginning (ft. Hawking, Sagan, Dawkins, Shears, Tyson) tag:www.atheistnexus.org,2011-01-20:2182797:Video:1087307 2011-01-20T19:37:11.149Z Donegal http://www.atheistnexus.org/profile/Donegal <a href="http://www.atheistnexus.org/video/symphony-of-science-the-big-1"><br /> <img alt="Thumbnail" height="180" src="http://api.ning.com/files/LE1e0zjfXEhOrjH6hmlHDQUY3s3ac93IHQwwfOhL-TSb*q1z5aOOl2OApMRCkDnJW9Vu9he2q2AhH7LHaWvVOwVF-ekdkrg5Q8jRFq2-EnY_/440886313.jpeg?width=240&amp;height=180" width="240"></img><br /> </a> <br></br>"The Big Beginning" is the eighth installment in the Symphony of Science music video series. It deals with the origins of our universe, covering the Big Bang theory, expansion and cooling of the universe, formation of galaxies, the interplay between matter and anti-matter, and cosmic radiation. The music video features Stephen Hawking, Richard Dawkins, Carl Sagan, Tara Shears, and… <a href="http://www.atheistnexus.org/video/symphony-of-science-the-big-1"><br /> <img src="http://api.ning.com/files/LE1e0zjfXEhOrjH6hmlHDQUY3s3ac93IHQwwfOhL-TSb*q1z5aOOl2OApMRCkDnJW9Vu9he2q2AhH7LHaWvVOwVF-ekdkrg5Q8jRFq2-EnY_/440886313.jpeg?width=240&amp;height=180" width="240" height="180" alt="Thumbnail" /><br /> </a><br />"The Big Beginning" is the eighth installment in the Symphony of Science music video series. It deals with the origins of our universe, covering the Big Bang theory, expansion and cooling of the universe, formation of galaxies, the interplay between matter and anti-matter, and cosmic radiation. The music video features Stephen Hawking, Richard Dawkins, Carl Sagan, Tara Shears, and Neil deGrasse Tyson.<br /> <br /> Videos sampled for this installment include Into the Universe with Stephen Hawking; God, the Universe, and Everything Else; The Universe (History Channel); NOVA ScienceNOW; interviews with Richard Dawkins and Tara Shears, and Carl Sagan's Cosmos.<br /> <br /> The principal design for the motion graphic at the end was designed by Joe Snodgrass. Check out his record label: <a href="http://twitter.com/luxusarctica">http://twitter.com/luxusarctica</a>. Thanks to him!<br /> <br /> Check out <a href="http://symphonyofscience.com/">http://symphonyofscience.com/</a> for more science music videos.