I agree, I heard that astronaut cannot pee or shit while they are in space.公仔箱論壇% Z9 @% y. e( N% o
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" J: Z, I% u, P
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
: I; |' y3 m4 O* m: W$ H' d公仔箱論壇I suggest you pack and pick other subject instead, if you really like Physics,
# g0 f% c+ h1 i$ l) s' M- Q* oyou need to switch school., e+ d+ e+ `, P
There is no 地心引力, but "gravitational" force only.
7 `0 W2 [, \$ |3 B2 \A simple meaning of Gravitational force = the force of attraction between any % l4 k5 O6 Z, X- p9 ^0 ?, E
two masses.
$ t4 z# k4 G: A% Y- MTVBNOW 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。
2 l3 E3 u3 s1 x4 J* MGosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
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