mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.
; Z! N9 U  H1 v8 a* a+ ?1 ATVBNOW 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.
- Q. V1 j# P3 x$ W# H5.39.217.77Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
* @3 Z4 _  K4 O. NI suggest you pack and pick other subject instead, if you really like Physics,
& d& q* P4 a' w/ O" qyou need to switch school.公仔箱論壇0 W" W% N" s# r5 U
There is no 地心引力, but "gravitational" force only.公仔箱論壇. M' ^: e. t' n) q) I
A simple meaning of Gravitational force = the force of attraction between any tvb now,tvbnow,bttvb' R' g. O3 F( b, B/ T1 ?/ H
two masses.: g4 C$ X/ u$ F2 i9 z
5.39.217.774 o) @* y, z$ l; Z2 I
Gosh, I got fooled by my HK Physics teacher many years ago.