Why can biting on aluminum foil be painful?

Kategorie: Wissen und Wissenschaft
Kanal: BrainStuff
Datum: 8. Februar 2012, 17:36
Stufe: B1-B2 (Mittelstufe)


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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.