回複：被7歲兒子的一個問題難住了

來源: 於 2012-08-16 14:55:17 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

Stephen has an lecture about origin of universe

http://www.ralentz.com/old/astro/hawking-1.html

 

interesting website that discuss physics

http://www.physicsforums.com/showthread.php?t=79248