Favorite talks
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Elon Musk: The mind behind Tesla, SpaceX, SolarCity ...
21:04 Posted: Mar 2013
Views: 608,378 | Comments: 247
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Georgette Mulheir: The tragedy of orphanages
10:41 Posted: Nov 2012
Views: 265,297 | Comments: 60
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Cesar Harada: A novel idea for cleaning up oil spills
14:30 Posted: Jul 2012
Views: 342,157 | Comments: 93
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David MacKay: A reality check on renewables
18:35 Posted: May 2012
Views: 275,906 | Comments: 263
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Shereen El Feki: HIV -- how to fight an epidemic of bad laws
15:28 Posted: May 2012
Views: 247,622 | Comments: 102
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Hans Rosling: Religions and babies
13:20 Posted: May 2012
Views: 960,593 | Comments: 403
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Melinda Gates: Let's put birth control back on the agenda
25:27 Posted: Apr 2012
Views: 453,049 | Comments: 572
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Frans de Waal: Moral behavior in animals
16:52 Posted: Apr 2012
Views: 1,216,361 | Comments: 523
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Jennifer Pahlka: Coding a better government
12:11 Posted: Mar 2012
Views: 1,752,841 | Comments: 199
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Bryan Stevenson: We need to talk about an injustice
23:41 Posted: Mar 2012
Views: 1,151,413 | Comments: 375