Potato Clock - Make a Potato Battery to Power an LED Clock

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Potato Battery - More Fun Things to Try

Let your imagination run with this idea. There are variations on the potato clock and other things you can try.

See what else your potato battery can power. It should be able to run a computer fan. Can it light a light bulb?
Try substituting copper pennies for the copper wire.
Potatoes are not the only foods that can act as electrochemical cells. Experiment with lemons, banans, pickles, or cola as a power source.