mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.
; o. d2 t( {. A# |$ t$ m" u  K% Htvb now,tvbnow,bttvbIt must be a painful joruney.tvb now,tvbnow,bttvb. v5 \/ c+ N8 H: B7 t
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.公仔箱論壇% s0 F% m/ B; `, c# A5 B' q6 _
I suggest you pack and pick other subject instead, if you really like Physics,
; r+ U& x0 H6 _: x% m8 x0 {. j5 H- ]you need to switch school.5.39.217.760 h, j1 }* E0 S6 Q  H, n
There is no 地心引力, but "gravitational" force only.
1 N" d/ V2 E5 X) v* _: i5.39.217.76A 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。0 x9 \6 r3 m( U$ [# ?
two masses.
7 _6 A5 j% T' K; ?
% b$ v# Y" F9 `. p! P3 c7 Y( {5.39.217.76Gosh, I got fooled by my HK Physics teacher many years ago.