523. Who invented the microwave oven and how did he think of it?
In 1945, American engineer Percy Le Baron Spencer was working with radar equipment at Raytheon and noticed that some candy he had in his pocket had melted. Radar equipment detects objects by bouncing microwaves from them and Spencer realized that it was these microwaves that had heated the candy (as well as his body...oops!). Raytheon soon realized the potential of Spencer's discovery and began to produce the first microwave ovens: Radaranges. These early devices were large and expensive and it wasn't until 1967, when Amana, a subsidiary of Raytheon, produced the first household microwave oven, that microwave ovens became widely available.