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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 ).
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Einstein and Szilard themselves named it the "Einstein Refrigerator" in the document shown in the article, notice the name in big letters and the signatures of both inventors. 77.215.46.17 20:59, 2 June 2010 (UTC) Here is support for moving this article to Einstein-Szilard refrigerator. Dannen, Geene (1997).
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The Einstein refrigerator is invented by Albert Einstein and Leo Szilard. Ulster -born engineer Harry Ferguson is granted a British patent for his 'Duplex' hitch linking tractor and plough . German engineer Andreas Stihl patents and develops an electric chainsaw .
Roblox occasionally hosts real-life and virtual events. They have in the past hosted events such as BloxCon, which was a convention for ordinary players on the platform. [45] Roblox operates annual Easter egg hunts [51] and also hosts an annual event called the "Bloxy Awards", an awards ceremony that also functions as a fundraiser. The 2020 ...
In computing, an avatar is a graphical representation of a user, the user's character, or persona. Avatars can be two-dimensional icons in Internet forums and other online communities, where they are also known as profile pictures , userpics , or formerly picons (personal icons, or possibly "picture icons").
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.