mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.
. `! P, ]9 c( }$ E2 S" @2 rTVBNOW 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。It must be a painful joruney.tvb now,tvbnow,bttvb1 E+ N4 q9 ~( e. T
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
- N( G4 W" g) b) k+ @  u5.39.217.77I suggest you pack and pick other subject instead, if you really like Physics, 5.39.217.77( u! j2 F( Q& d) ^0 R
you need to switch school.2 c7 |6 I$ _8 h5 D3 M5 h  n
There is no 地心引力, but "gravitational" force only.
7 q$ @5 M6 k& ^8 w5.39.217.77A simple meaning of Gravitational force = the force of attraction between any & R0 q7 c3 Z2 g
two masses.5.39.217.77" U% R6 b2 p; T; |+ b
公仔箱論壇; h5 G, f. j! C, s
Gosh, I got fooled by my HK Physics teacher many years ago.