I agree, I heard that astronaut cannot pee or shit while they are in space.tvb now,tvbnow,bttvb0 B$ \* d! ~# k2 J4 g, }9 ?5 K6 E
It must be a painful joruney.os.tvboxnow.com$ V9 V! h, L* f: ]5 b
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.9 M: o% ?6 D' T% f+ G# D9 E: l
I suggest you pack and pick other subject instead, if you really like Physics,
6 t& d% M$ Y h8 R9 n$ T3 tyou need to switch school.
9 O$ ~/ U' M4 g) t+ O. Ptvb now,tvbnow,bttvbThere is no 地心引力, but "gravitational" force only.
h0 F. U* D6 ` i& Qtvb now,tvbnow,bttvbA simple meaning of Gravitational force = the force of attraction between any
- V1 E c2 v6 \7 f8 F9 A- q' t9 ~os.tvboxnow.comtwo masses.
1 I- I7 d8 W, N$ s4 t) Xtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb+ l5 D- |6 q9 b4 w6 W7 R% M; } K* {
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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