I agree, I heard that astronaut cannot pee or shit while they are in space.公仔箱論壇7 k# h$ x9 T6 z |
It must be a painful joruney.
& t+ ?7 @+ S" Ptvb now,tvbnow,bttvbOh BTW, if your lecturer talks about "地心引力" in your Physics class.
: l1 r( M& O }" ?4 Y: Dtvb now,tvbnow,bttvbI suggest you pack and pick other subject instead, if you really like Physics,
. F2 u; k! u" d5 k( ]4 m9 r8 Ctvboxnow.comyou need to switch school." y/ Q' N, V4 a8 P! e+ H7 D3 g% M
There is no 地心引力, but "gravitational" force only.
( F2 x' K& K0 K: o$ \tvboxnow.comA simple meaning of Gravitational force = the force of attraction between any
" p& Y! c& _/ R9 _4 A7 ptvb now,tvbnow,bttvbtwo masses.
4 d ]8 b% [) H' ?7 \% _. ^$ I公仔箱論壇: n( U8 C% L. [, ^+ A2 U& U; \
Gosh, I got fooled by my HK Physics teacher many years ago. |
發表於 2007-4-25 12:23 AM
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