Potato battery

Potato Lightbulb

You can power a lightbulb with with just a few household items and a potato. The chemical reaction between the juices in the potato, zinc nails, and copper pennies produces enough voltage to make the lightbulb light up.

Scientists have even found that you can increase the power significantly by boiling the potatoes:

http://www.mydailyinformer.com/540/

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Details

  • Mildly Challenging (5)
  • 10+ years old
  • 3 bookmarks
  • Rough Cost: $5

Materials

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