GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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J.Perkins
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Benjamin Franklin
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Alexander Fleming
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Albert Einstein
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Detailed explanation-1: -In 1835, Perkins was granted the first patent for the vapor-compression refrigeration cycle. As a result, he is commonly referred to as “The Father of the Refrigerator“. Perkins discovered that liquefied ammonia had a cooling effect, so his refrigerator used ethyl ether and ammonia to produce a small quantity of ice.
Detailed explanation-2: -The absorption refrigerator was invented by Baltzar von Platen and Carl Munters from Sweden in 1922, while they were still students at the Royal Institute of Technology in Stockholm.
Detailed explanation-3: -The first known artificial form of refrigeration was demonstrated by William Cullen at the University of Glasgow in 1748. Cullen’s invention, though ingenious, was not used for any practical purpose. In 1805, an American inventor, Oliver Evans, designed a blueprint for the first refrigeration machine.