mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.www3.tvboxnow.com8 ]/ E. Q% }4 I% H3 E! \2 ^# c6 y
It must be a painful joruney.tvb now,tvbnow,bttvb& v, l, O  j% p& [
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。* t- n% T2 ?& c1 R. V+ s" e' m2 d
I suggest you pack and pick other subject instead, if you really like Physics,
$ L/ Z# k2 e8 f) cyou need to switch school.
% q  Q. W; e+ z1 L3 T$ s3 |7 nTVBNOW 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。There is no 地心引力, but "gravitational" force only.tvb now,tvbnow,bttvb# p0 E" F- h4 k1 d3 X" Y2 {
A simple meaning of Gravitational force = the force of attraction between any tvb now,tvbnow,bttvb  \: M  |/ G% a/ V0 d. c- B* [5 y, m: _  E
two masses.
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Gosh, I got fooled by my HK Physics teacher many years ago.