mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.( _  b' A- h- o/ U
It must be a painful joruney.
0 x+ ~8 j6 Q% I5 K5 i; R& G8 Ktvb now,tvbnow,bttvbOh BTW, if your lecturer talks about "地心引力" in your Physics class.3 w2 B3 z6 {0 |, E& y" Z6 s7 S; j
I suggest you pack and pick other subject instead, if you really like Physics,
" p( ?1 C9 u" h8 }1 \+ xTVBNOW 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.tvb now,tvbnow,bttvb( s" z1 n/ R8 s1 `* I$ j" s& c  P
There is no 地心引力, but "gravitational" force only.
" s) R- |5 x2 ZA simple meaning of Gravitational force = the force of attraction between any
5 E, u6 Y$ ?% U5.39.217.76two masses.
& M8 v. Z3 _% c) S* Itvb now,tvbnow,bttvb公仔箱論壇+ p( o" b+ ^& i, `, |4 p3 Q
Gosh, I got fooled by my HK Physics teacher many years ago.