mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.公仔箱論壇$ k5 B; H3 b; ]- X9 O
It must be a painful joruney.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。! L" z  m6 k  @, n5 f! P: F
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。- j) u8 G& Y: S# [$ L5 ]
I suggest you pack and pick other subject instead, if you really like Physics,
, }' h( s2 y( m$ }you need to switch school.
6 b5 u* m% P  ~: D, JThere is no 地心引力, but "gravitational" force only.3 l# A$ j7 y9 p3 p
A simple meaning of Gravitational force = the force of attraction between any ! _$ N5 x9 a0 c4 h
two masses.
' H! |  _! B( E2 G+ c! rtvb now,tvbnow,bttvb
( _9 m! t& Q7 }2 y8 c* eTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Gosh, I got fooled by my HK Physics teacher many years ago.