3 ms·
See also Feynman on "Why?" questions: http://www.youtube.com/watch?v=wMFPe-DwULM&t=28s http://www.youtube.com/watch?v=wMFPe-DwULM&t=28s
by paulgerhardt 16y ago
See also Feynman on "Why?" questions: http://www.youtube.com/watch?v=wMFPe-DwULM&t=28s http://www.youtube.com/watch?v=wMFPe-DwULM&t=28s