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A large domestic refrigerator stands as tall as a person and may be about one metre (3 ft 3 in) wide with a capacity of 0.6 m 3 (21 cu ft). Refrigerators and freezers may be free standing, or built into a kitchen. The refrigerator allows the modern household to keep food fresh for longer than before.
The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate. It was jointly invented in 1926 by Albert Einstein and his former student Leó Szilárd , who patented it in the U.S. on November 11, 1930 ( U.S. patent 1,781,541 ).
1983 – Orifice-type pulse tube refrigerator invented by Mikulin, Tarasov, and Shkrebyonock; 1986 – Karl Alexander Müller and J. Georg Bednorz discover high-temperature superconductivity; 1995 – Eric Cornell and Carl Wieman create the first [17] Bose–Einstein condensate, using a dilute gas of Rubidium-87 cooled to 170 nK. They won the ...
Paul Davis Ryan (born January 29, 1970) is an American politician who served as the 54th speaker of the United States House of Representatives from 2015 to 2019. A member of the Republican Party , he was the vice presidential nominee in the 2012 election with Mitt Romney , losing to incumbent President Barack Obama and Vice President Joe Biden .
U.S. patent 2,535,682 was issued on December 26, 1950 – Prefabricated refrigerator construction. U.S. patent 2,581,956 was issued on January 8, 1952 – Refrigeration control device. U.S. patent 2,666,298 was issued on January 19, 1954 – Methods and means of defrosting a cold diffuser.
Icebox used in cafés of Paris in the late 1800s. An icebox (also called a cold closet) is a compact non-mechanical refrigerator which was a common early-twentieth-century kitchen appliance before the development of safely powered refrigeration devices.
A Crosley IcyBall with cold side ball on left, hot side ball on right. Icyball is a name given to two early refrigerators, one made by Australian Sir Edward Hallstrom in 1923, and the other design patented by David Forbes Keith of Toronto (filed 1927, granted 1929), [1] [2] and manufactured by American Powel Crosley Jr., who bought the rights to the device.
In 1850, Ferdinand's brother Edmond Carré (22 January 1833 – 7 May 1894) developed the first absorption refrigerator, using water and sulphuric acid. [2] Ferdinand continued Edmond's work on the process and in 1858 developed a machine which used water as the absorbent and ammonia as refrigerant . [ 3 ]