Perry Spencer, an engineer at Raytheon, lost his chocolate candy bar when he left it near a piece of radar equipment and it started to melt. It’s easy to imagine a busy engineer thinking:, Oh, great. Of course radar would heat up chocolate, I should have known … and I was so hungry, too. Well, clean up the mess and get over it, buddy. Back to work. Instead Spencer became curious and began to investigate the possibilities; his curiosity led him to invent the microwave oven.3

