I agree, I heard that astronaut cannot pee or shit while they are in space.tvb now,tvbnow,bttvb" x7 u$ e2 }4 A6 S, `) M1 I
It must be a painful joruney.
. ^) a. ~3 ?0 _" Z C" ZOh BTW, if your lecturer talks about "地心引力" in your Physics class.- V# i9 o( [+ t
I suggest you pack and pick other subject instead, if you really like Physics, 公仔箱論壇- b0 S2 q; @" n
you need to switch school.www1.tvboxnow.com" O& `/ T0 D1 ]9 b0 H" x) B
There is no 地心引力, but "gravitational" force only.5 e O3 q2 t% ^- X5 V
A simple meaning of Gravitational force = the force of attraction between any tvb now,tvbnow,bttvb: S* P# g4 s/ y- E- x
two masses.6 D2 e4 [0 S# v; N* Y
www1.tvboxnow.com# Y( c' ]7 ^/ x" M0 ^- d! ]
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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