I agree, I heard that astronaut cannot pee or shit while they are in space.www2.tvboxnow.com/ ~% i, b0 n" N5 c: c; T
It must be a painful joruney.www2.tvboxnow.com0 p# U& e s1 W* t/ M' c
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.
8 c( l- s- @! r. l2 C& eI suggest you pack and pick other subject instead, if you really like Physics, ! L: w+ J. K/ ^7 _' q; d9 q( a
you need to switch school.
+ _0 @. O! ^- s+ i3 k+ Y+ C0 `tvb now,tvbnow,bttvbThere is no 地心引力, but "gravitational" force only." q0 [0 A, z8 W
A simple meaning of Gravitational force = the force of attraction between any www2.tvboxnow.com+ M! S7 \/ ?9 V o& ~
two masses.- ?, v& V/ K: M% |+ ~% Y
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Gosh, I got fooled by my HK Physics teacher many years ago. |