Features the most insightful and informative videos on all areas of the sciences, history, philosophy, and the arts, with an additional focus on the values of Humanism, Freethought and methodological Skepticism.
If there are any freely available programs or shows which you know of that I missed, please let me know about them.
TWIE 159: Drilling on Mars
This Week in Engineering:
Ballistic missile disaster aid
Venetian flood barriers
via Engineering dot com.
HUGE half-ton chunk of Russian meteorite found!
In mid-October 2013, a 570 kilogram (1200+ pound) meteorite was found, a piece of the asteroid that exploded over Chelyabinsk on Feb. 15, 2013. Divers dredged it up from the bottom of Lake Chebarkul, 70 km west of Chelyabinsk. This is by far the largest piece found, and probably worth millions of dollars.
Footage from RIA Novosti / Aleksandr Kondratuk: http://rt.com/news/largest-fragment-meteorite-lifted-258/
(They have a second video there worth watching, too).
via The Bad Astronomer.
Destination Ceres: Icy World Revealed
Join us for another special Dawn Mission Hangout as we explore the dwarf planet/largest asteroid Ceres. Special guests will be Britney Schmidt of the Georgia Institute of Technology and Julie Castillo-Rogez of NASA’s Jet Propulsion Laboratory. They will be talking about what lurks underneath Ceres’s dusty regolith.
via Astrosphere Vids.
The Mystery of the Missing Waves on Titan
Saturn’s giant moon Titan is dotted with hydrocarbon lakes and seas that bear an uncanny resemblance to bodies of water on Earth. Strangely, though, Titan’s lakes and seas have no waves.
via Science At NASA.
Searching for Mars’ Missing Atmosphere
MAVEN will use its Neutral Gas and Ion Mass Spectrometer to study the interaction of neutral gases and ions in the Martian atmosphere with the solar wind, helping scientists to understand how Mars has lost its atmosphere over time.
This video is public domain and can be downloaded at:
via NASA explorer.
Be Curious about Earthquakes- Are there earthquakes on places other than Earth?
(by Ross Exton)
What causes an earthquake? How much energy is released by these huge geological events? Ross Exton talks about all this and more in Be Curious about Earthquakes.
Presented and Produced by Ross Exton
Written by Emily Coyte
Check out Emily’s awesome blog:
1) Science phrases which made us laugh: “Blind thrust fault” a fault line which does not quite reach the surface, so it is difficult to detect as well as dangerous. Also “Love waves” named after a dude called Love, they are horizontally polarised shear waves.
2) The Richter scale is actually logarithmic. This means that the waves of a 9.5 tremor are actually 10 times the size of an 8.5 one and 100 times bigger than waves of a 7.5 quake. The energy of the quake increases 31 times for each unit increase of the Richter scale. Other better known logarithmic scales include, magnitude of stars and decibels and pH.
3) The scientific study of earthquakes is called seismology and the devises used to detect earthquakes are called seismographs. Seismographs have been set up all over the world which allow seismologists to pinpoint where the earthquake first started and how strong it was. It was actually by studying earthquakes around the world which allowed scientists to work out that the outer core of the earth was liquid rather than a solid as was assumed.
Planetary Scientist Profile: Brent Garry
NASA Geologist Brent Garry discusses his work studying volcanoes and lava flows on the Earth, the Moon, and Mars.
This video is public domain and can be downloaded at:
via NASA explorer.
Planetary Society Hangout: Emily Dean on a Sol in the Life of Opportunity
Emily has been involved with the Mars Exploration Rovers since she was in high school. While earning a degree in Art and Architectural History at Ithaca College, she continued to support the MER mission until she had the opportunity to take a full time operations position at Cornell.
Emily will take us through a day in the life of planning a day in the life of a rover on Mars. We will also explore how planetary exploration draws together people from diverse backgrounds to work on one of humanity’s most exciting endeavors, how non-scientists and engineers can participate in space missions, and how her training in art, design, and the liberal arts impacts her role working with the cameras on Opportunity.
via Planetary Society.
Explosion on the Moon!
Pock-marked with craters and splotched with long-cold beds of dark lava, our moon holds thousands of footprints from its violent past. But we don’t really think of it having a violent present.
Well, it still gets its fair share of action. On March 17, 2013, NASA astronomers captured video of a meteorite striking the moon. It made an explosion bright enough to be seen with the naked eye, like a temporary star drawn on the lunar surface. It turns out that these collisions are not that rare.
Most of the moon’s many meteor marks date from a period known as the Late Heavy Bombardment. That, combined with a magma-riffic adolescence gave the moon the special look we know today. Of course, none of that is as violent as the moon’s birth.
Anyway, make sure to watch that video above and see the meteor strike live. You’ll never look at the moon the same way again.
Neil deGrasse Tyson: How the Moon May Have Formed
How was the Moon formed, and why doesn’t it have more iron or heavy metals? Neil deGrasse Tyson explains to Eugene Mirman how a collision with a Mars-sized object during the formation of the Earth may have led to the creation of the Moon. Enjoy this “Behind the Scenes video” from StarTalk Radio.
via Star Talk Radio.
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Perchlorate on Mars
Samuel P. Kounaves is a professor of chemistry at Tufts University and lead scientist with the Phoenix Mars Lander Wet Chemistry Lab. He presented his work at a symposium on Friday 15 February, “Exploring Other Worlds and Seeing Our Own Anew.”
2013 AAAS Annual Meeting in Boston
Science Bulletins: Nile-Like River Found on Moon of Saturn
Saturn’s largest moon, Titan, is the only moon or planet in our Solar System other than Earth with stable liquid on its surface. The Cassini spacecraft recently imaged a river valley on Titan that looks much like Earth’s Nile River valley. Titan’s hydrocarbon river follows a relatively straight path before emptying into a large lake in the north.
NASA’s Asteroid Watcher - Don Yeomans Talks With SPACE.com’s Tariq Malik
The manager of NASA’s Near-Earth Object Program office talks about potentially hazardous asteroids, comets and his new book: “Near-Earth Objects: Finding Them Before They Find Us”.
by Video From Space.
Mars: Dry Ice and Dunes
Mars Reconnaissance Orbiter captures the springtime thaw of seasonal carbon dioxide ice on Mars.
by JPL news.
The California Meteorite Rush
Meteorites are highly sought after by researchers because their chemical compositions can yield tremendous insight about their host asteroids and comets, as well as the early solar system. On April 22, 2012, a minivan-sized meteor streaked across the sky over California and Nevada. The ensuing search for meteorite fragments near a California site called Sutter’s Mill revealed that this was a CM-type carbonaceous chondrite—an extremely rare meteorite containing amino acids and traces of early life. Science News Writer Emily Underwood describes the hunt for these precious fragments and explains what is so unique about this find.
Science (www.sciencemag.org) is the world’s leading journal of original scientific research, global news, and commentary. For more original videos, check out the Science Video Portal (video.sciencemag.org)