I agree, I heard that astronaut cannot pee or shit while they are in space.www3.tvboxnow.com# C; F0 K7 N4 z$ n4 y5 o
It must be a painful joruney.9 W6 z. j4 e! O% x2 U
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
$ N c% z* A& W* o, I5 W1 O9 I B7 T6 _I suggest you pack and pick other subject instead, if you really like Physics,
8 h2 j7 W9 i$ m# |: h9 d( vyou need to switch school.
# Z3 _4 |- R2 ]2 F/ g& jThere is no 地心引力, but "gravitational" force only.
1 x8 E1 d) T9 M KA simple meaning of Gravitational force = the force of attraction between any
- T3 q0 A5 Q8 O; n: w7 utwo masses.
2 q; [& `: d- \# Z! ^
* V# b) s/ q& `9 ?; W7 u* v lwww3.tvboxnow.comGosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
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