I agree, I heard that astronaut cannot pee or shit while they are in space.公仔箱論壇% {/ L: V! I {$ _& _
It must be a painful joruney.
; z7 e& k4 `" x) `9 r& p$ ntvb now,tvbnow,bttvbOh BTW, if your lecturer talks about "地心引力" in your Physics class.. W# p$ C$ D' p* g$ w& F1 y* ]
I suggest you pack and pick other subject instead, if you really like Physics, " J5 A3 W# Z( D" u; u
you need to switch school.. c+ |& r, u; O# |3 o# }* q
There is no 地心引力, but "gravitational" force only.0 `' O; T6 m6 |$ [
A simple meaning of Gravitational force = the force of attraction between any 公仔箱論壇! T u* ]/ t* o( k0 C. J
two masses.
! I" u( d$ V8 F" l+ p. _& {' G公仔箱論壇公仔箱論壇1 J; X- z+ w' w% A- B% P1 V
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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