Who Invented the Microwave Oven When and How?Who Invented the Microwave Oven When and How?On Thursday, July 1st, 2010 at 11:00 PM, No Comments »
Percy Spencer (an American self-taught engineer from Howland ) he was the first inventor of Microwave oven in 1945. Spencer discovered the heating effect of microwaves was discovered accidentally while he was building magnetrons for radar sets with the American company Raytheon. He was working on active radar set when he noticed that a peanut chocolate bar he had in his pocket started to melt. The radar had melted his chocolate bar with microwaves. The first food to be deliberately cooked with Spencer’s microwave was popcorn, and the second was an egg, which exploded in the face of one of the experimenters. To verify his invention, Spencer created a high density electromagnetic field by feeding microwave power into a metal box from which it had no way to escape. When food was placed in the box with the microwave energy, the temperature of the food rose rapidly. On October 8, 1945 microwave energy was placed in a Boston restaurant for testing. In 1947, the company built the Radarange, the first microwave oven in the world. It was almost 1.8 metres (5.9 ft) tall, weighed 340 kilograms (750 lb) and cost about US$5000 each. It consumed 3 kilowatts, about three times as much as today’s microwave ovens, and was water-cooled. An early commercial model introduced in 1954 consumed 1.6 kilowatts and sold for US$2000 to US$3000. Raytheon licensed its technology to the Tappan Stove company in 1952.They tried to market a large, 220 volt, wall unit as a home microwave oven in 1955 for a price of US$1295, but it did not sell well. In 1965 Raytheon acquired Amana. In 1967 they introduced the first popular home model, the countertop Radarange, at a price of US$495. Incoming search terms for the article:
Related Microwave OvensLeave a ReviewLeave a Reply |
