I agree, I heard that astronaut cannot pee or shit while they are in space.
% j4 |% D7 c8 g$ {/ n) F% qIt must be a painful joruney.5.39.217.76) [( i! E) m/ t1 W4 n: `& x
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
$ t9 }4 y+ P6 L. w/ `I suggest you pack and pick other subject instead, if you really like Physics,
1 F/ f2 p3 x, Kyou need to switch school.- @0 r Q5 W b
There is no 地心引力, but "gravitational" force only.* ~3 M$ u) D3 L: @( _8 j6 V7 P
A simple meaning of Gravitational force = the force of attraction between any * D; ^/ N. r# r
two masses.& X6 [4 {7 k3 ?2 f8 P: z
! v0 F2 b+ j* b5 C1 {5 Ytvb now,tvbnow,bttvbGosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
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