Most life-changing inventions begin with years of planning. The microwave oven began with a melted candy bar. In 1945, engineer Percy Spencer was working on radar technology for Raytheon when he noticed something unusual. A chocolate bar tucked inside his pocket had suddenly turned gooey while he stood near a magnetron, the powerful vacuum tube used in radar systems during World War II.
That small and unexpected moment would eventually transform kitchens across the world and change the way people cooked forever.
