mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.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。6 N! \; N# _, p$ U
It must be a painful joruney.
, ], X0 y# z# E! D1 F. Z公仔箱論壇Oh BTW, if your lecturer talks about "地心引力" in your Physics class.tvb now,tvbnow,bttvb* u: P* H. i9 b: K
I suggest you pack and pick other subject instead, if you really like Physics,
. e, \8 h% \: X. Y7 lyou need to switch school.公仔箱論壇1 t& k" y* t" {8 D+ [+ ?
There is no 地心引力, but "gravitational" force only./ N# w8 o2 c  G1 m4 n/ Y- W
A simple meaning of Gravitational force = the force of attraction between any 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。7 |3 X5 [- B' B
two masses.' T1 b* z( P0 H8 ?  d7 Q0 ], c
tvb now,tvbnow,bttvb6 E, e  o- E, H0 ]+ G! J* p
Gosh, I got fooled by my HK Physics teacher many years ago.