Microwave Oven & Percy Spencer
Tuesday, October 07, 2008
In the history of human scientific progress chance discoveries have played a major role. But the chance finds have always succeeded in hogging the limelight only when followed by careful and systematic scientific analysis.read more...
Microwaves are an essential household item. But only a handful of us know the story behind its development. In 1946, Percy Spencer, an engineer and inventor, who held more than 120 patents, was conducting radar related research. While testing a new type of vacuum tube – the magnetron – he noticed that a chocolate bar he had been carrying in his pocket had melted. Intrigued, Spencer began conducting more experiments. He watched popcorn “pop” and bounces around the room when he held a bag of uncooked kernels up to the tube. Next, Spencer observed a raw egg placed next to the magnetron explode from the pressure that had built up inside.
Spencer concluded that each of the items had “cooked” when exposed to low-density microwave energy emitted by the magnetron. Raytheon engineers’ quickly adapted his discovery, and the first commercial microwave oven, the “Radarange”, began its move into household kitchens the following year.read summary...
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Microwaves are an essential household item. But only a handful of us know the story behind its development. In 1946, Percy Spencer, an engineer and inventor, who held more than 120 patents, was conducting radar related research. While testing a new type of vacuum tube – the magnetron – he noticed that a chocolate bar he had been carrying in his pocket had melted. Intrigued, Spencer began conducting more experiments. He watched popcorn “pop” and bounces around the room when he held a bag of uncooked kernels up to the tube. Next, Spencer observed a raw egg placed next to the magnetron explode from the pressure that had built up inside.
Spencer concluded that each of the items had “cooked” when exposed to low-density microwave energy emitted by the magnetron. Raytheon engineers’ quickly adapted his discovery, and the first commercial microwave oven, the “Radarange”, began its move into household kitchens the following year.read summary...
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