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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 ).
Small ice spikes can be formed artificially on ice cubes produced in domestic refrigerators; using distilled water in plastic ice cube trays. The formation of the spike is similar to that of the naturally occurring spike in that the expansion of interior water and, the reduction of volume in the interior of the cube, increase the pressure on ...
Carré's ice-making 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 ]
A status indicator that notifies when it is time to change the water filter; An in-door ice caddy, which relocates the ice-maker storage to the freezer door and saves approximately 60 litres (2.1 cu ft) of usable freezer space. It is also removable, and helps to prevent ice-maker clogging. A cooling zone in the refrigerator door shelves.
Kelvinator ad from 1920 Kelvinator refrigerator, c. 1926. The enterprise was established on September 18, 1914, in Detroit, Michigan, United States, by engineer Nathaniel B. Wales, who introduced his idea for a practical electric refrigeration unit for the home to Edmund Copeland and Arnold Goss.
Yakhchāl of Moayedi, Iran. A yakhchāl (Persian: یخچال "ice pit"; yakh meaning "ice" and chāl meaning "pit") is an ancient type of ice house, which also made ice.They are primarily found in the Dasht-e Lut and Dasht-e-Kavir deserts, whose climates range from cold (BWk) to hot (BWh) desert regions.
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