I agree, I heard that astronaut cannot pee or shit while they are in space.www2.tvboxnow.com5 y' b. i+ |5 @5 O
It must be a painful joruney.公仔箱論壇, S- X: h' o. H# f, j/ x1 h
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.公仔箱論壇 B; K- ?) X) h! a; M8 t
I suggest you pack and pick other subject instead, if you really like Physics, www2.tvboxnow.com2 q! Q; _4 E2 n& }4 n: }
you need to switch school.
, ]. X( P3 c5 ztvb now,tvbnow,bttvbThere is no 地心引力, but "gravitational" force only.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。' V1 R4 P5 r* u! c
A simple meaning of Gravitational force = the force of attraction between any ) i3 b3 f3 [- Z& i6 e
two masses.* O5 u2 Z# [+ i6 G
8 q* @. J; E3 H1 U. u- ` O8 ~ kwww2.tvboxnow.comGosh, I got fooled by my HK Physics teacher many years ago. |