mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.
8 r  j2 ?% ~  e$ }6 i1 x: gIt must be a painful joruney.tvb now,tvbnow,bttvb# R7 L1 s" g: O
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
/ ~+ m) t! C9 s# J, F* E3 z8 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。I suggest you pack and pick other subject instead, if you really like Physics,
6 ?9 e8 ]# g0 J1 JTVBNOW 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。you need to switch school.
. U9 ~, U4 A1 {4 d+ E  u& p& etvb now,tvbnow,bttvbThere is no 地心引力, but "gravitational" force only.
) t  h0 s# X4 y* e. G5 G9 H- I$ ?$ c5.39.217.77A simple meaning of Gravitational force = the force of attraction between any 5 v& N9 B. ~% Q' t7 r: E( O
two masses.5.39.217.77. N9 d6 @: q" y  D

' }% e$ L9 c" f3 c" F, W' _- [Gosh, I got fooled by my HK Physics teacher many years ago.