Have you ever wondered why metal catches on fire when you put it in the microwave?
    On this website, you will read about how metal can explode in a microwave. It is when the flow of energy inside the microwave is distrupted by a metal-like object, it can cause a spark. That is because the build up of energy between 2 points of the metal, it will overcome the insulation properties of air and start arching.

this is a microwave on fire. picture courtesy of squidoo.com

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