Sean Carroll on the arrow of time (Part 1) | Video on TED.com - 0 views
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thinkahol * on 29 Dec 10TED Talks In Part 1 of his lecture at the University of Sydney, cosmologist Sean Carroll gives an entertaining and thought-provoking talk about the nature of time, the origin of entropy, and how what happened before the Big Bang might be responsible for the arrow of time we observe today. (Don't miss Part 2 of this talk!)