I agree, I heard that astronaut cannot pee or shit while they are in space.公仔箱論壇; M! C$ w: |1 R+ G( R) Z
It must be a painful joruney.
1 g5 |; X; z1 i, j8 a* C& H8 t/ y公仔箱論壇Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
`% [# A) n/ Qtvb now,tvbnow,bttvbI suggest you pack and pick other subject instead, if you really like Physics, * B5 F; J" w3 a" X/ ?. F: K
you need to switch school.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。% I/ `, m5 \& s- H/ H+ B
There is no 地心引力, but "gravitational" force only.公仔箱論壇1 w8 K1 o/ \; M: k. X! f- N# S4 A
A simple meaning of Gravitational force = the force of attraction between any
* L+ J3 C0 H; S0 n/ \two masses.公仔箱論壇1 ~8 W {1 k8 j* i0 \+ S
公仔箱論壇5 F' U; g# j) H9 W. C) h
Gosh, I got fooled by my HK Physics teacher many years ago. |