I agree, I heard that astronaut cannot pee or shit while they are in space.公仔箱論壇6 {+ I5 Q6 Z+ y
It must be a painful joruney.. B4 b. L' p8 A- a8 J4 d+ L' m
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
0 c) i! z, m, E1 I公仔箱論壇I suggest you pack and pick other subject instead, if you really like Physics,
5 \4 S# [; z+ `4 W5.39.217.76you need to switch school.5.39.217.763 E0 @* ?5 y4 a: K! Z0 C
There is no 地心引力, but "gravitational" force only.
; p5 r+ }6 A1 @( g% Q' vtvb now,tvbnow,bttvbA simple meaning of Gravitational force = the force of attraction between any , n m. m; k/ ]0 A- M' ?( Q; ^
two masses.
/ ^9 Q) r4 ?1 w L5 Q, ]公仔箱論壇tvb now,tvbnow,bttvb* X! r9 b# g1 w' Q0 R3 q
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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