GENERAL KNOWLEDGE

GK

INVENTIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Who invented the refrigerators?
A
a-Jerome Lemelson
B
b-Abraham Lincoln
C
c-Wright Brothers
D
d-William Cullen
Explanation: 

Detailed explanation-1: -In 1748 while in Glasgow, Cullen invented the basis for modern refrigeration, although is not credited with a usable application. In 1751 he was appointed Professor of the Practice of Medicine, although he continued to lecture on chemistry.

Detailed explanation-2: -The first known artificial refrigeration was demonstrated by William Cullen at the University of Glasgow in 1748. Cullen let ethyl ether boil into a partial vacuum; he did not, however, use the result to any practical purpose.

Detailed explanation-3: -He was the second son of doctor and state legislator Peter Bryant and his wife Sarah Snell, whose ancestors were passengers on the Mayflower. At thirteen, Bryant wrote “The Embargo, ‘’ a satirical poem calling for the resignation of President Thomas Jefferson. The poem was eventually published in a pamphlet in 1808.

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