环保小玩意：Bedol 水能源时钟

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fevath @ Jul 16th 2008 7:57AM

里面是有不同的金属片，加入盐水（电解液），就变成电池了。还是用电池的。一旦金属片反应完了，整个钟都要扔掉，更污染环境。一点都比不上充电电池。

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hzhbest @ Jul 16th 2008 10:00PM

浓度差驱动，你倒纯水进去，出来的不就是污染水了吗？（它没提到用太阳把水蒸发回去来回复浓度｛况且回复浓度的时候钟就不能用了｝）

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Reader Comments (Page 1 of 1)

fevath @ Jul 16th 2008 7:57AM

rlen @ Jul 16th 2008 8:23AM

hzhbest @ Jul 16th 2008 10:00PM

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