I agree, I heard that astronaut cannot pee or shit while they are in space.公仔箱論壇/ ^1 @9 _+ A& k8 z: h0 o
It must be a painful joruney.公仔箱論壇' U. e+ X W; r( f
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.* A2 G/ A# I `* q3 A: m/ G9 L
I suggest you pack and pick other subject instead, if you really like Physics,
8 j9 r3 s( N- G' pyou need to switch school.5.39.217.77:8898& C$ P0 Y: I% n: e+ C, y
There is no 地心引力, but "gravitational" force only.
# A; B0 { C! w/ ]9 eA simple meaning of Gravitational force = the force of attraction between any
* C g! m# r) s+ o, J# X3 `5.39.217.77:8898two masses.6 |5 }1 G# U2 ^0 Z
6 ?3 W. W0 n- H% l- g0 Q( U* @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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