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An engineer named Percy Spencer, who was involved with the construction of magnetrons for use in radar. (A magnetron is the microwave generating part of a microwave oven.) He worked for Raytheon, and when he found a melted chocolate bar partially melted in his pocket, he deduced that leaking microwave energy was the cause. To test his theory, he put food in a metal box and microwaved it, and it heated up very quickly. On the 8th of October, 1945, Raytheon filed for a patent, and the microwave oven was born.

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15y ago

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