I agree, I heard that astronaut cannot pee or shit while they are in space.0 U+ G& a* H0 q; e% i- v- a
It must be a painful joruney.5.39.217.76$ p% }0 u- c% v+ i9 \9 b# H# m
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
% F$ M& L5 k! o% V. N7 \5.39.217.76I suggest you pack and pick other subject instead, if you really like Physics,
9 B9 E5 x" D9 u# K. F. ^2 x: |5.39.217.76you need to switch school." j: i" l1 c, u6 y `' \6 D) H- e. I
There is no 地心引力, but "gravitational" force only.公仔箱論壇- j3 F0 j4 I" E; u; D! Q% r" E5 i+ v
A simple meaning of Gravitational force = the force of attraction between any
, n& T* O$ s' E# l7 G( T# f公仔箱論壇two masses.
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1 w* r& K x7 @& H# @) XGosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
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