gaye

Originally posted by fung at 2006-5-8 11:22 PM:) ^) U' U  V7 w2 r
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# n& A: ?& Y$ _" T但假如我唔係 North Pole jump 落去 , 係慢慢爬落去 , 咁到達地心時 , 再向 South Pole 出發個時, 係爬上去定爬落去 ?
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[ Last edited by gaye on 2006-5-8 at 11:36 PM ]

gaye

Originally posted by fung at 2006-5-9 12:03 AM:$ Q9 G7 H2 j& A
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( g1 q3 M0 E# d' U4 Q9 u$ T3 b$ Q咁我諗要睇你點define上同落
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4 ?  C7 U. S) B( @+ @/ a2 ~7 `沒錯 , 上同下係睇點 define , 冇 absolute , 但人在北極向地心出發(向下挖) , 人的感覺必定是向下前進吧 , 但人到了地心 , 再向南極出發的時候 , 人的感覺會是向上 or 向下前進 ? (假設個人冇掉轉到身)