Favorite talks
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Play
Josh Silver demos adjustable liquid-filled eyeglasses
05:34 Posted: Sep 2009
Views: 490,244 | Comments: 111
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Play
Jill Bolte Taylor's stroke of insight
18:44 Posted: Mar 2008
Views: 11,057,284 | Comments: 2456
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James Watson: How we discovered DNA
20:11 Posted: Apr 2007
Views: 491,950 | Comments: 80