Does Africa need PhDs? | Dr Sphumelele Ndlovu | TEDxGreshamPlace
13:52
Careful! His pen is loaded: Zapiro (aka Jonathan Shapiro) at TEDxWesterfordHighSchool
12:58
Is There A Need For Fundamental Physics Research in Africa?: Zeblon Vilakazi at TEDxAIMS
16:23
Things about a PhD nobody told you about | Laura Valadez-Martinez | TEDxLoughboroughU
14:53
The secret to getting better sleep tonight | James Leinhardt | TEDxManchester
11:51
How hard work and passion got me a PhD | Tshepo Mogapaesi | TEDxUBotswana
15:48
From a Street-child to a Ph. D. | Jose Zelaya | TEDxLSCTomball
19:27
The first 20 hours -- how to learn anything | Josh Kaufman | TEDxCSU
13:51