mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.
8 l: A# _* i. g0 s  Z% uTVBNOW 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。It must be a painful joruney.
2 T6 Q5 u& A, b( s& e# [% fTVBNOW 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。Oh BTW, if your lecturer talks about "地心引力" in your Physics class.公仔箱論壇4 ]6 ?, P6 d) T$ s
I suggest you pack and pick other subject instead, if you really like Physics,
* p# w8 g$ X& N0 ktvb now,tvbnow,bttvbyou need to switch school.tvb now,tvbnow,bttvb$ B6 L& g) y$ o; a6 [: p7 V- I( X
There is no 地心引力, but "gravitational" force only./ P0 u7 q8 g0 R
A simple meaning of Gravitational force = the force of attraction between any
! G6 @, x1 v  Q0 r" P! xtvb now,tvbnow,bttvbtwo masses.  y6 ~8 q) W9 p. j/ @, C9 N

1 ^: J' X+ s+ |Gosh, I got fooled by my HK Physics teacher many years ago.