I agree, I heard that astronaut cannot pee or shit while they are in space.& q* _4 ^1 }4 s6 D5 B
It must be a painful joruney.
. t. s$ B, k5 E1 S4 u6 R% c公仔箱論壇Oh BTW, if your lecturer talks about "地心引力" in your Physics class.9 [' W3 H; F- t# z1 w8 X4 Q
I suggest you pack and pick other subject instead, if you really like Physics, 公仔箱論壇/ `3 |+ Y9 K" R J4 K7 b- Q, N/ U8 ]
you need to switch school.5.39.217.77( [. x: z8 n& ?; h9 N" Z
There is no 地心引力, but "gravitational" force only.& b4 J {) u, o9 {
A simple meaning of Gravitational force = the force of attraction between any
3 E# t. K% m: N3 P, E0 H4 L0 H7 Y+ K- X5.39.217.77two masses.
+ L& n% R& |, l, R. H+ t5 Xtvb now,tvbnow,bttvb
8 o6 l# ~# M/ [1 X. b& FGosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
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