在太空中航天员是没办法哭的，因为没有地心引力,眼泪流不出来 作者: mamasing 時間: 2007-4-26 09:26 AM
I agree, I heard that astronaut cannot pee or shit while they are in space. $ x" w, u+ d2 l7 t公仔箱論壇It must be a painful joruney.公仔箱論壇4 i& W1 x4 {% E
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.4 ~7 w" ]6 _# U x# a; a
I suggest you pack and pick other subject instead, if you really like Physics, www1.tvboxnow.com: I, w$ v6 x& G& M& q& G
you need to switch school.- R# k q: j' @0 }
There is no 地心引力, but "gravitational" force only. % o, m2 _/ y+ N5 p# q+ @4 U! o% t5 YA simple meaning of Gravitational force = the force of attraction between any $ U, a* U, V; m1 j1 _two masses.公仔箱論壇5 n3 {% h4 Y% m) }8 ^% Y
www1.tvboxnow.com# h$ G; H/ R" H D, ?" ?9 U7 Q% q8 P
Gosh, I got fooled by my HK Physics teacher many years ago.
