As it is often the case with important inventions, also microwave oven, that revolutionized the way we cook the mid '900 onwards, He was born almost by accident.
This, in breve, his own story.
The US firm Raytheon, immediately after the end of World War II, He was able to obtain an order for the production of magnetron, a device capable of generating microwaves necessary for the functioning of the radar English.
The engineer Percy L. Spencer, employed in the firm, own while working at the magnetron, he saw that the device had caused the dissolution of the chocolate piece that happened to be staying in your pocket, sensing that with it was possible to heat and cook food.
In 1957, the first microwave oven was placed on the market, and found immediate success among housewives around the world, which he facilitated the housework (Photo gives: youtech.it).