I agree, I heard that astronaut cannot pee or shit while they are in space.) u% j% H @( f3 r8 o
It must be a painful joruney.公仔箱論壇/ S7 |" J9 S& [/ i b s8 z
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.4 ?# V6 t+ D4 b( w9 R. ]
I suggest you pack and pick other subject instead, if you really like Physics, * k5 [4 o8 J7 U0 {( }
you need to switch school.# \7 d* k0 { P- R
There is no 地心引力, but "gravitational" force only.7 l y8 Y5 Y/ t6 p) ]" [( v% a% \
A simple meaning of Gravitational force = the force of attraction between any tvb now,tvbnow,bttvb8 F9 F' P9 L! E3 R8 o% G
two masses.
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" G& J6 |# M! V' c6 c1 E- vGosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
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