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BrainStuff

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Science & Medicine, Natural Sciences, Society & Culture, Technology

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Science & Medicine 13
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Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

Why can biting on aluminum foil be painful?

July 23rd, 2010

Episode 691 of 1067 episodes

When (dental) metal in your mouth comes in contact with aluminum foil, your teeth get a painful shock from the electricity produced. Marshall Brain explains how the voltaic effect plays out in your mouth in this episode.

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