mamasing

I agree, I heard that astronaut cannot pee or shit while they are in space.
' ^) @7 l1 I1 E; @; U& DIt must be a painful joruney.
0 K: E0 n- l7 y! Y' H& n) I1 _tvb now,tvbnow,bttvbOh BTW, if your lecturer talks about "地心引力" in your Physics class.7 [- I* T" Z' l( L( S2 |) C
I suggest you pack and pick other subject instead, if you really like Physics,
7 D4 _& `+ H: B+ I% ~, q: nyou need to switch school.
4 T; E- I0 A: A公仔箱論壇There is no 地心引力, but "gravitational" force only.
5 A: y2 S1 h2 ?& m% C  A$ J5.39.217.77:8898A simple meaning of Gravitational force = the force of attraction between any
2 M  H; v5 W; T& G! b2 G7 Etwo masses.公仔箱論壇/ Z* h! l+ a% Z

' }) I8 f6 s) ?: u  \% h8 \0 x5.39.217.77:8898Gosh, I got fooled by my HK Physics teacher many years ago.