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[冷知識分享] 在太空中航天员是没办法哭的

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
I agree, I heard that astronaut cannot pee or shit while they are in space.! o. e( j' Y/ d4 F5 P2 C( |& N
It must be a painful joruney.www2.tvboxnow.com8 t+ m' x$ d' Q/ c% c
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.www2.tvboxnow.com0 Y+ ]) U8 g9 s
I suggest you pack and pick other subject instead, if you really like Physics,
& K- d# F4 H- w. L- a! a: F: L2 O& Tyou need to switch school.# D# l% W8 R+ H' }# v
There is no 地心引力, but "gravitational" force only.4 Z; e- \1 q& U2 q/ o) L% C
A simple meaning of Gravitational force = the force of attraction between any www2.tvboxnow.com5 F5 ~" \4 o# c4 f$ M9 C" K5 S
two masses.
7 O% O) h" Q0 r% F. o% M# Stvb now,tvbnow,bttvb, F; f$ E' b9 c0 ]7 c! L" C
Gosh, I got fooled by my HK Physics teacher many years ago.
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