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How batteries work - Adam Jacobson

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TEDEd Animation

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Batteries are a triumph of science—they allow smartphones and other technologies to exist without anchoring us to an infernal tangle of power cables. Yet even the best batteries will diminish daily, slowly losing capacity until they finally die. Why does this happen, and how do our batteries even store so much charge in the first place? Adam Jacobson gives the basics on batteries.

The tissue of living organisms does not contain solid metal, like a copper wire or a zinc plate. However, electric current flows through nerves and muscles. How does current flow through living tissue? (Hint: think about the paper and cloth layers in Volta’s pile)

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TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

  • Educator Adam Jacobson
  • Director Nick Sazani
  • Producer Samantha Scharff, Steve Shin, Matthew Chadwick, Arielle Matorana
  • Editor Leroy Patterson
  • Script Editor Emma Bryce
  • Narrator Addison Anderson

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