What device did Percy LeBaron Spencer invent in 1945 in the USA?

Percy LeBaron Spencer invented the microwave oven in 1945 in the United States.

Spencer worked for Raytheon, a company that manufactured electronic components during World War II. One day he noticed that a chocolate bar in his pocket was melting when he stood next to a magnetron emitting microwave radiation. This led him to develop the first microwave oven that used similar technology to his experiment.

The microwave oven revolutionized food preparation by speeding up and making it easier to heat food. It soon became a popular household appliance around the world.

Source: History.com< /a>