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How does a microwave oven heat up food so quickly?

Dancing Water Trick
How does a microwave oven heat up food so quickly?
You press a button, the box hums, and thirty seconds later your soup is steaming. ~~No flame, no glowing coils, no fuss.

You press a button, the box hums, and thirty seconds later your soup is steaming. No flame, no glowing coils, no fuss. So what exactly is going on inside that humming little box?

Here's the first surprise: a microwave doesn't really heat your food. It heats the water inside your food. And almost everything you eat — soup, pizza, leftover rice — is secretly soaking wet on the inside.

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