mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.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。) B% f& m  V, ~* U
It must be a painful joruney.tvboxnow.com6 H, G, N  _) T
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
! Y: ~7 K2 l. a) j  C" ?+ C; c公仔箱論壇I suggest you pack and pick other subject instead, if you really like Physics, 公仔箱論壇( }1 j, U7 \6 i+ M
you need to switch school.
# x  A/ C  w" t3 o: tThere is no 地心引力, but "gravitational" force only.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。. X' k" |1 C6 r8 F
A simple meaning of Gravitational force = the force of attraction between any
8 K; \8 H) R, V- Ftvb now,tvbnow,bttvbtwo masses.tvb now,tvbnow,bttvb* }2 P8 R8 J' j3 ?0 L! {

' |. U$ w, [& Y7 i# ntvb now,tvbnow,bttvbGosh, I got fooled by my HK Physics teacher many years ago.