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Microwave
How it works?

The vessel does not heat up. Only the food is getting hot. How does the microwave work?

Microwaves are electromagnetic waves! Microwaves with a frequency of 2500 MHz are generated by a device called a magnetron in a microwave oven. These microwaves penetrate some objects. Inhibited by some substances, absorbed by some substances. Porcelain, glass, and plastic materials absorb microwaves. Therefore, utensils in those materials are used in the microwave. Metals block …