mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.
/ V+ E1 i1 h& j  a4 J5 NIt must be a painful joruney.
8 i* Q$ W3 Q7 X& E7 C公仔箱論壇Oh BTW, if your lecturer talks about "地心引力" in your Physics class.5.39.217.76" P% }1 \$ o- W9 y7 y0 c  a6 ]7 F
I suggest you pack and pick other subject instead, if you really like Physics,
) V( D& K) G; V, F* K公仔箱論壇you need to switch school.  T# p2 g  g( ~) v5 T, P
There is no 地心引力, but "gravitational" force only.
  l3 f) ]& x, k3 k) z& @  ]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。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。" u7 y  g) U, F1 d6 L6 x
two masses.
* F5 Z  Z. Z/ q6 B3 Q: p- k- cTVBNOW 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。tvb now,tvbnow,bttvb: r; Y% M; D! a3 x) V% j" q( @
Gosh, I got fooled by my HK Physics teacher many years ago.