In 1945, Percy Spencer made a casual observation that led to a major change in food preparation. Standing next to a magnetron one day, he noticed that a candy bar in his pocket melted. This caused him to wonder if the energy from radio waves could be used to …
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Sep 5, 2026 1:00 PM
In 1945, Percy Spencer noticed something unusual while working on radar equipment: the candy bar in his pocket had melted. The engineer began experimenting with popcorn and an egg, eventually setting him on the path to developing the microwave oven.
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