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Potato Clock: Power Using Potatoes

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potato clock

Meet the Potato Clock: a geeky clock that lets you power it using two potatoes, fruits, or cups of salt water. You don’t need a battery to get it to work nor do you have to connect it to an electrical outlet. You get a digital clock with wires, pots, connecting wire, transparent tapes, copper and zinc strips and detailed instructions. Makes a great gift for curious kids.

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