What Happens on Mars

From The Dai­ly Dish:

“Clouds move across the sky on Mars. The sun ris­es. Snow falls — but nev­er touch­es the ground.”

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Solar Eclipse Seen From Outer Space

The NASA STEREO space­craft sees the disk of the Moon pass in front of the Sun in a view nev­er seen before by human eyes.” For more videos, see The Bad Astron­o­my chan­nel on YouTube, which we’ve added to our col­lec­tion: Intel­li­gent Life at YouTube: 70 Edu­ca­tion­al Video Col­lec­tions.

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What It Feels Like To Have a Stroke (And More About Your Brain)

From the TedTalks con­fer­ence. Fas­ci­nat­ing talk. Here’s a sum­ma­ry that intro­duces the clip below …

“Neu­roanatomist Jill Bolte Tay­lor had an oppor­tu­ni­ty few brain sci­en­tists would wish for: One morn­ing, she real­ized she was hav­ing a mas­sive stroke. As it hap­pened — as she felt her brain func­tions slip away one by one, speech, move­ment, under­stand­ing — she stud­ied and remem­bered every moment. This is a pow­er­ful sto­ry about how our brains define us and con­nect us to the world and to one anoth­er.” Added to our YouTube playlist.

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Learning Chemistry on YouTube

This is per­haps a first: A uni­ver­si­ty-spon­sored video col­lec­tion on YouTube that hangs togeth­er and con­tributes to devel­op­ing a larg­er body of knowl­edge. The Uni­ver­si­ty of Not­ting­ham has launched a chan­nel called The Peri­od­ic Table of Videos, which offers a video for each ele­ment on the peri­od­ic table. In total, you will find 118 videos, includ­ing the one below that gives you a clos­er look at Ura­ni­um. And, for the record, we’ve added this video set to our com­pi­la­tion: Intel­li­gent Life at YouTube: 70 Edu­ca­tion­al Video Col­lec­tions. Here it goes:

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Top 10 Amazing Physics Videos (Including Boomerang in Zero Gravity)

Wired Sci­ence gives you their favorites here. Below, we’ve post­ed a sam­ple: It’s called “Boomerang in Zero Grav­i­ty” and shows that, even in out­er space, a boomerang will always return to the per­son who threw it.

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500 KM Asteroid Hits Earth

The Dis­cov­ery Chan­nel has pro­duced a rather impres­sive (though cer­tain­ly bleak) sim­u­la­tion of what would hap­pen:

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The World Without Us: Get A Free Copy of the NY Times Bestseller

worldwithout2.jpgWhat if we dis­ap­peared from the face of the earth tomor­row? All of us, just like that? What would hap­pen? How would the remain­ing world sur­vive or thrive with­out us? That’s the sce­nario that gets exam­ined by sci­ence writer Alan Weis­man (who we inter­viewed last year) in his non-fic­tion eco-thriller, The World With­out Us.

Now out in paper­back, the book, which spent 26 weeks on The New York Times best­seller list, sees things play­ing out like this:

With no one left to run the pumps, New York’s sub­way tun­nels would fill with water in two days. With­in 20 years, Lex­ing­ton Avenue would be a riv­er. Fire- and wind-rav­aged sky­scrap­ers would even­tu­al­ly fall like giant trees. With­in weeks of our dis­ap­pear­ance, the world’s 441 nuclear plants would melt down into radioac­tive blobs, while our petro­chem­i­cal plants, ‘tick­ing time bombs’ even on a nor­mal day, would become flam­ing gey­sers spew­ing tox­ins for decades to come… After about 100,000 years, car­bon diox­ide would return to pre­hu­man lev­els. Domes­ti­cat­ed species from cat­tle to car­rots would revert back to their wild ances­tors. And on every dehabi­tat­ed con­ti­nent, forests and grass­lands would reclaim our farms and park­ing lots as ani­mals began a slow parade back to Eden.

The World With­out Us is a great read. And now some of our read­ers can get their hands on a free copy. We have 10 copies to give away, and here’s how we pro­pose doing it. We’ll give a copy to the first 10 read­ers (liv­ing in North Amer­i­ca) who add a qual­i­ty piece of “open cul­ture” in the com­ments sec­tion of this post. That is, you will need to post a link to an enrich­ing video, pod­cast or mp3 that fel­low read­ers will enjoy, and tell us a lit­tle about why. When we get ten qual­i­ty clips, we will then pack­age them in a post and share them with the larg­er com­mu­ni­ty. In short, think of it as you get as you give. How nice. Very Kum­baya. (Watch Joan Baez sing it). Now let’s see what you’ve got.

NOTE: We can only ship to read­ers in North Amer­i­ca. And, yes, that includes Cana­da this time, and Mex­i­co too. To our many inter­na­tion­al read­ers, I apol­o­gize for the geo­graph­i­cal lim­i­ta­tion. And we’ll try to make things up to you down the line. We do appre­ci­ate you.

Also please note that if you’re select­ed, I will also even­tu­al­ly need your name and mail­ing address.

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Stephen Hawking Asks Big Questions About The Universe

Speak­ing at the 2008 TED con­fer­ence, physi­cist Stephen Hawk­ing asks some Big Ques­tions about our uni­verse: How did the uni­verse begin? How did life begin? Are we alone? And, dur­ing his ten minute talk, he offers some thoughts on how we might go about answer­ing these big enchi­la­da ques­tions. (We’ve added the clip to our YouTube playlist.)

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