想象要基与科学

回答: 难,下下个世纪是光速火车歌唱家2011-02-23 11:37:13

light speed* >> third cosmic velocity** with which your train would drive out of the solar system.

*light speed ~ 300Km/s
**third cosmic velocity ~17 Km/s

 

所有跟帖: 

王师傅没学过物理,可以理解~@~ -^3.1415926^- 给 ^3.1415926^ 发送悄悄话 (0 bytes) () 02/23/2011 postreply 11:59:39

He needs to consult a physicst like "me" before making the propo -shortstop- 给 shortstop 发送悄悄话 (10 bytes) () 02/23/2011 postreply 12:06:22

Opps, a typo: physicist -shortstop- 给 shortstop 发送悄悄话 (0 bytes) () 02/23/2011 postreply 12:08:03

BMT 里说,不要那么认真啦~@~咱这没有引力,没有重力,大家都是飘着的 ·@~ -^3.1415926^- 给 ^3.1415926^ 发送悄悄话 (0 bytes) () 02/23/2011 postreply 12:08:04

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