mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.公仔箱論壇- p% Q6 o0 K# C( l
It must be a painful joruney.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' w6 B# ^
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.公仔箱論壇3 M$ ~, I/ r. c) c/ K$ Q( k' s
I suggest you pack and pick other subject instead, if you really like Physics,
" P$ Y% G8 H$ Q5.39.217.76you need to switch school.
7 ^/ `* a; w* r- U7 U( Dtvb now,tvbnow,bttvbThere is no 地心引力, but "gravitational" force only.tvb now,tvbnow,bttvb5 |6 |" O9 m% S0 [1 d. l
A simple meaning of Gravitational force = the force of attraction between any : I! c9 X* b9 I$ m  e$ ]! E+ V+ v
two masses.
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& @, D6 v6 T3 K, y$ nGosh, I got fooled by my HK Physics teacher many years ago.