I agree, I heard that astronaut cannot pee or shit while they are in space.公仔箱論壇6 f/ `( h, u& R; z
It must be a painful joruney.tvb now,tvbnow,bttvb8 x6 ?8 s5 i! \- X4 y. u
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
' N3 d7 r+ t& c/ i) RI suggest you pack and pick other subject instead, if you really like Physics,
+ @1 l6 ^6 |/ a* Q8 fyou need to switch school.
2 l- g$ U/ g( j8 q5.39.217.77:8898There is no 地心引力, but "gravitational" force only.+ G Q7 r$ b+ b- ?- E: y
A simple meaning of Gravitational force = the force of attraction between any 8 G) e) L8 ~2 Z( w! f1 `# U
two masses.
6 {) ^: i! W5 T0 \0 ~; W* n公仔箱論壇* j0 D/ O) E8 o1 O+ A( [5 Z4 }
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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