Why can biting on aluminum foil be painful?

BrainStuff

iHeartPodcasts

Science, Technology, Natural Sciences

3.9 • 1.7K Ratings

🗓️ 8 February 2012

⏱️ 6 minutes

🔗️ Recording | iTunes | RSS

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Summary

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.

Transcript

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0:00.0	Walter Isakson set out to write about a world-changing genius in Elon Musk and found a man addicted to chaos and conspiracy.
0:07.0	I'm thinking it's idiotic to buy Twitter because he doesn't have a fingertip feel for social emotional networks.
0:13.4	The book launched a thousand hot takes,
0:15.3	so I sat down with Isakson to try to get past the noise.
0:18.0	I like the fact that people who say I'm not as tough on Musk
0:21.4	as I should be are always using anecdotes for my book to show why we should be tough on Musk.
0:27.0	Join me, Evan Ratliff, for On Musk with Walter Isickson.
0:30.0	Listen on the IHeartRadio app, Apple Podcasts, or wherever you get your podcasts.
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0:40.0	Like Easy Listening, but for fiction.
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0:55.4	Come spend some time where everyone is welcome and the default is kindness.
0:59.7	Listen, relax, enjoy.
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1:05.0	on the I Heart Radio app, Apple Podcasts,
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	...

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