一个核心问题：Why should energy and momentum be treated equally?

Why should time and space be treated equally as well?

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• 同样问题：Why should you love a piece of beauty -人类拯救计划- ♂ (0 bytes) () 03/16/2011 postreply 08:46:11

• I love a piece of art because it's unique. -涛博士- ♀ (106 bytes) () 03/16/2011 postreply 09:22:42

• 连这种基本问题都要回避？ -涛博士- ♀ (45 bytes) () 03/16/2011 postreply 10:19:14

• 我正在写论文，过一个月后再回答。 -人类拯救计划- ♂ (17 bytes) () 03/16/2011 postreply 12:17:19