mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.5.39.217.76, G2 I( F- t& L. ]& A
It must be a painful joruney.
, W+ B3 `( u& e+ k: V' WOh BTW, if your lecturer talks about "地心引力" in your Physics class.5.39.217.76$ Y8 M+ P0 T/ p( A9 a
I suggest you pack and pick other subject instead, if you really like Physics, 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。# g1 a/ v/ U* A5 K5 {+ B) J; P
you need to switch school.
/ {$ R8 w; V. k: D$ K% ~" b* Y5 LTVBNOW 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。There is no 地心引力, but "gravitational" force only.5.39.217.76" }% c$ N: ]; L5 t
A simple meaning of Gravitational force = the force of attraction between any 6 X# U: h! X. E. {$ c0 W
two masses.
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Gosh, I got fooled by my HK Physics teacher many years ago.