Favorite talks
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Eric Sanderson pictures New York -- before the City
16:09 Posted: Oct 2009
Views: 383,014 | Comments: 40
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William Kamkwamba: How I harnessed the wind
05:59 Posted: Sep 2009
Views: 1,097,645 | Comments: 244
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Cary Fowler: One seed at a time, protecting the future of food
17:08 Posted: Aug 2009
Views: 345,026 | Comments: 92
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Clay Shirky: How social media can make history
15:48 Posted: Jun 2009
Views: 916,785 | Comments: 199
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Pete Alcorn on the world in 2200
03:50 Posted: Jun 2009
Views: 278,408 | Comments: 103
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Adam Grosser: A mobile fridge for vaccines
03:31 Posted: Jun 2008
Views: 677,788 | Comments: 125
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Joshua Klein: The intelligence of crows
10:06 Posted: May 2008
Views: 1,871,825 | Comments: 262
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Matthieu Ricard: The habits of happiness
20:54 Posted: Nov 2007
Views: 2,008,029 | Comments: 309
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Play
Dean Kamen previews a new prosthetic arm
05:10 Posted: Aug 2007
Views: 1,231,489 | Comments: 90
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William Kamkwamba: How I built a windmill
04:12 Posted: Jul 2007
Views: 647,537 | Comments: 142