I agree, I heard that astronaut cannot pee or shit while they are in space.1 g! J" h- q' n+ S
It must be a painful joruney.
- X1 B3 @' F2 W1 b6 \4 sOh BTW, if your lecturer talks about "地心引力" in your Physics class.
8 {# K0 I6 s* K3 F) t. x公仔箱論壇I suggest you pack and pick other subject instead, if you really like Physics, tvb now,tvbnow,bttvb+ F5 K8 S5 ~6 C$ `
you need to switch school.
8 X/ |6 u9 J3 rThere is no 地心引力, but "gravitational" force only.
: y' G8 P+ g. [# E/ N9 h; Stvb now,tvbnow,bttvbA simple meaning of Gravitational force = the force of attraction between any os.tvboxnow.com. f' O3 d; @9 C! p. m
two masses.os.tvboxnow.com* Y+ J% o ?+ J; s' d! u
公仔箱論壇 s) H+ n. }5 |3 f; j( o0 Y: P
Gosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
| 
