gaye

Originally posted by fung at 2006-5-8 11:22 PM:3 H$ Q0 \% J% Z0 o- S) m

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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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" w% T0 P2 V5 K4 q[ Last edited by gaye on 2006-5-8 at 11:36 PM ]

gaye

Originally posted by fung at 2006-5-9 12:03 AM:0 f+ }& Q" n: v1 u8 D$ E

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$ }4 o% |$ m6 z: M* s4 z: z咁我諗要睇你點define上同落3 a6 T. T& A" i, I' h
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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)