Richard Feynman on Numbers (not that big:) )

Richard Feynman on Numbers (not that big:) )

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送交者: 短江学者于 2010-12-14, 15:27:49:

回答: 谢谢！由 gyro 于 2010-12-14, 14:30:55:

http://www.youtube.com/watch?v=F0LCVp0C-Ck
http://www.youtube.com/watch?v=ovx7whviO3k&NR=1