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How is a Microwave Built? Microwaves have elevated the convenience of home to a new level. They are designed to fit in cabinets on the walls or over kitchen islands. They are constructed from various materials. In 1940, the cavity magnetron tube emitting microwaves was developed at Birmingham University in England. Percy Spencer realized that this device could be used to heat food when he watched eggs pop and corn cook. Raw Materials Microwave (MW), heating is gaining popularity in the material processing industry because of its inherent advantages like faster he
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