I agree, I heard that astronaut cannot pee or shit while they are in space.www3.tvboxnow.com9 r" z5 Q: S/ B/ s7 |, T
It must be a painful joruney.www3.tvboxnow.com- Q$ n# D0 ]3 d0 T+ x; B @. {
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.tvb now,tvbnow,bttvb4 h' z9 F: z* G& M' ]
I suggest you pack and pick other subject instead, if you really like Physics,
# I% w, O7 o8 m, D) Ktvb now,tvbnow,bttvbyou need to switch school.tvb now,tvbnow,bttvb/ D, D: x' y+ k1 s3 F
There is no 地心引力, but "gravitational" force only. U% X7 O0 { s' I
A simple meaning of Gravitational force = the force of attraction between any
9 P$ r/ Q9 K( o: G0 P, Ytvb now,tvbnow,bttvbtwo masses.
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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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