How A Potato Battery Can Light Up A Room For A Month

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The Smithsonian released an interesting article that shows how potatoes can be used as a salt-bridge between two metals, allowing an electron current to move across wire to create electricity. Using boiled potatoes (instead of raw), one research group was able to prove that they could create a system that could light rooms using LED-powered with sufficient lighting for up to 40 days. Read on at the Smithsonian for the full article.

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Dead Simple Trick Brings Any Battery Back To Life
(Never Buy Batteries Again)

Learn how to bring any battery back to life again