Potato Clock

Potato Clock

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Credit: Science Source/SCIENCE PHOTO LIBRARY

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Caption: Photograph of a potato battery powering a clock. A potato battery is an electrochemical battery or electrochemical cell. In the cell chemical energy is converted to electric energy by a spontaneous electron transfer. Zinc metal reacts with copper wiring to create energy which is then transferred to the clock.

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Keywords: battery, circuit, clock, conductivity, conductor, current, demonstration, dielectric, education, educational, electric, electricity, physical, physics, potato, seamless, silica, silicon dioxide, sio2, still life, studio image, test, watch, wire

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