原帖由 keibeast 於 2007-3-23 07:56 PM 發表
唔知 energy conversion o既 lost 有幾大呢 ? 由生成 compressed air -> mechanical movement -> magnetic induction -> electricity -> magnetic force -> mechanical movement.
原帖由 keibeast 於 2007-3-24 19:35 發表
其實我係想講每一次o既energy conversion 都會有好多 lost, 如 work done against friction, resistance caused electric power lost.
原帖由 WURTH 於 2007-3-31 02:46 PM 發表
睇昨日份報紙, 佢話十幾蚊行成百公里.
而家我架車仔十幾蚊都係行廿幾公里炸.
不過香港出唔到牌呀.
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