Why A Stuck Coin Battery Burns Your Throat From Inside

The real science

A coin battery has no sharp edges, but if it gets stuck in the esophagus, wet tissue completes its circuit. The current turns the body's own moisture into a strong alkaline chemical that burns the lining from the inside, and serious damage can start within about two hours. That's why these batteries now come in hard-to-open packaging. A swallowed battery is a medical emergency. Animated with AI-assisted 3D tools. For curiosity and education only. Don't try anything shown in this video.

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