https://chessdatabase.science/....wiki/Built_In_Microw
How is a Microwave Built? Microwaves have taken household convenience to a whole new level. They can be put in cabinets for wall use or on top of kitchen islands. They are also constructed with a variety of materials. In 1940 the cavity magnetron tube emitting microwaves was developed at Birmingham University in England. Percy Spencer discovered that this device could heat food after he watched eggs pop and corn cook. Raw Materials Microwave (MW), heating is growing in popularity in the field
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