I agree, I heard that astronaut cannot pee or shit while they are in space.os.tvboxnow.com: [! x/ E* T% @+ s
It must be a painful joruney.os.tvboxnow.com5 e$ s4 c1 L2 U) r6 C
Oh BTW, if your lecturer talks about "地心引力" in your Physics class.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。6 y- y9 B6 }7 b
I suggest you pack and pick other subject instead, if you really like Physics,
2 j2 J% f8 M U5 ]tvb now,tvbnow,bttvbyou need to switch school.TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。* D2 x8 f7 I5 ^9 {: n/ ^% p! L2 A& c
There is no 地心引力, but "gravitational" force only.
( o8 `9 L! l; ^4 ?) ytvb now,tvbnow,bttvbA simple meaning of Gravitational force = the force of attraction between any 6 W2 {& r7 G" Z( p
two masses.os.tvboxnow.com8 \2 M5 ?3 K3 w
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Gosh, I got fooled by my HK Physics teacher many years ago. |