I agree, I heard that astronaut cannot pee or shit while they are in space.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。% Y" }+ D, l% v2 _; a3 s' s
It must be a painful joruney., `& V- F1 W* ?+ I% C
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.tvb now,tvbnow,bttvb4 I# B+ U/ x3 `+ |3 P5 F8 k$ g
I suggest you pack and pick other subject instead, if you really like Physics, tvb now,tvbnow,bttvb( p6 O) y- o. O+ ]
you need to switch school.5.39.217.773 }. S1 Z# b" L5 f+ `( {2 b
There is no 地心引力, but "gravitational" force only.
4 Q. f I) p4 p2 l/ B! atvb now,tvbnow,bttvbA simple meaning of Gravitational force = the force of attraction between any
# h, j1 I D- R0 G0 ltvb now,tvbnow,bttvbtwo masses.5 h# ~0 @7 j1 m5 Q p0 M5 g( r
+ T" r/ {( l+ j- |Gosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
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