) N2 ~* D d; q, o0 a, j x $ f5 J2 d; i, u3 q. X5 B这个水表可不是测量用水量的仪表，而是用水“驱动”的钟表。tvb now,tvbnow,bttvb8 j; K3 R4 {' }7 k3 ^
你只要按照说明向里面加入一些盐水即可驱动手表运转，而避免了使用电池带来的污染。作者: limsp5 時間: 2008-10-8 11:26 PM
I remember a Korean who had invented a electricity generator using urine. I am sure it will work with brine.作者: chea76 時間: 2008-10-9 11:24 AM
can save buying battery or using elect. but actually clock doesn't use much of battery... normally can already last for year or 2...作者: shenngau 時間: 2008-10-9 11:56 AM
