Here is a really fun Eco-friendly gadget that runs off of water. You’ll never have to worry about buying batteries again if you keep this Water Powered Can Clock on your desk. Just remember to keep it filled and the clock will continue to tick. The little system takes advantage of state of the art water technology to power a the high contrast display (LCD) clock. Through the use of positive and negative electrodes (the same basic principles behind the lemon or potato powered clock) the Water Powered Can Clock’s patented technology creates an electrochemical reaction within water. This reaction creates electricity which is directed into the LCD clock display and the screen comes to life. If you look closely, you can see the electrodes as they protrude into the water. You will also notice that the clock is in fact the same dimensions as an ordinary soda can, making is compact and convenient.
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