Dirac Conversation: Edward Witten
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49:00
Conversation: Salam, Sciama, Witten and Budinich
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1:02:48
Dirac Conversation: Jeffrey Harvey and Igor Klebanov
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19:34
Roger Penrose on quantum mechanics and consciousness | Full interview
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1:29:23
Introduction to Chern Simons Theory and Topology - Edward Witten
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1:08:46
Neil Turok on the simplicity of nature
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25:01
Newton Medal winner (2010): Edward Witten
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10:29
Is string theory still worth exploring? | Roger Penrose and Eric Weinstein battle Brian Greene
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1:22:08