The World Around Us

Chemicals in Our World

How does a microwave work?

Microwaves work by using a process called dielectic heating. The microwave surrounds your food in a field of electromagnetic radiation that is constantly changing directions. The polar molecules in your food, particularly water, align their dipoles with the direction of this applied field. The constant shifting of the direction of this field causes the polar molecules to tumble around, and this molecular motion warms your food.


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