I agree, I heard that astronaut cannot pee or shit while they are in space.
9 S1 T: Z* H! U Ttvb now,tvbnow,bttvbIt must be a painful joruney.tvb now,tvbnow,bttvb: \& c" a6 }7 F) J4 @
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.公仔箱論壇% ~, u# D2 i% X4 M
I suggest you pack and pick other subject instead, if you really like Physics, 5.39.217.77. Y- B' W2 Z! ~& C0 _1 V
you need to switch school.公仔箱論壇; l7 ?: D1 w" i2 }5 T
There is no 地心引力, but "gravitational" force only.tvb now,tvbnow,bttvb9 U' u: Y: ^% k2 H/ Y% B
A simple meaning of Gravitational force = the force of attraction between any
4 a9 f/ _" d' c. ^- Y% w, b公仔箱論壇two masses. n5 q {2 L! a) ^
公仔箱論壇5 w3 x; Z2 w( v0 \ `* R1 _7 d
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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