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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.
. _3 j* ]7 Q1 {  ]" f, v' ?5 YIt must be a painful joruney.5 P5 T" g& [( N
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.+ h6 d4 ]/ H/ E( W, i
I suggest you pack and pick other subject instead, if you really like Physics,
6 j. R0 ^* W; w+ r3 h" |www3.tvboxnow.comyou need to switch school.www3.tvboxnow.com, n% z! t, S: M2 {) ~8 H5 c) X
There is no 地心引力, but "gravitational" force only.tvb now,tvbnow,bttvb2 }, ]( c/ Q0 g$ W, c# H( p
A simple meaning of Gravitational force = the force of attraction between any
, t. m# S$ [' q- t0 qtwo masses.tvb now,tvbnow,bttvb- Y4 n6 d0 r& N- S# Y- Y& A! T

+ o, j3 A6 |/ K' CGosh, I got fooled by my HK Physics teacher many years ago.
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