I agree, I heard that astronaut cannot pee or shit while they are in space.
% h# r9 g; [- V" v% Ptvb now,tvbnow,bttvbIt must be a painful joruney.+ w! H3 r4 s! o. o% g) Y; K- K
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.公仔箱論壇1 [/ O2 D" u: ?, F C
I suggest you pack and pick other subject instead, if you really like Physics, 公仔箱論壇& k4 O# [6 c9 A9 C
you need to switch school.5.39.217.76( K. o! u( J( W9 l6 v- @3 ~
There is no 地心引力, but "gravitational" force only.
' s9 m. d K. K1 v. e, ~# DA simple meaning of Gravitational force = the force of attraction between any
- d d6 o. y8 q& U* gtwo masses.$ p0 X l: }$ m, a! e- J6 b
9 O q0 l J: H4 P, ? BGosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
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