Favorite talks
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David Christian: The history of our world in 18 minutes
17:40 Posted: Apr 2011
Views: 795,170 | Comments: 331
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Chimamanda Adichie: The danger of a single story
18:49 Posted: Oct 2009
Views: 4,146,008 | Comments: 760
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Paul Ewald asks, Can we domesticate germs?
17:51 Posted: May 2008
Views: 219,124 | Comments: 62
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Jill Bolte Taylor's stroke of insight
18:44 Posted: Mar 2008
Views: 11,057,840 | Comments: 2456