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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 ).
Because SparkNotes provides study guides for literature that include chapter summaries, many teachers see the website as a cheating tool. [7] These teachers argue that students can use SparkNotes as a replacement for actually completing reading assignments with the original material, [8] [9] [10] or to cheat during tests using cell phones with Internet access.
The first commercial ice-making machine was invented in 1854. [9] In 1913, refrigerators for home use were invented. [10] In 1923 Frigidaire introduced the first self-contained unit. The introduction of Freon in the 1920s expanded the refrigerator market during the 1930s. Home freezers as separate compartments (larger than necessary just for ...
John B. Gorrie (October 3, 1803 – June 29, 1855) was a Nevisian-born American physician and scientist, credited as the inventor of mechanical refrigeration. [1] [2]Born on the Island of Nevis in the Leeward Islands of the West Indies to Scottish parents on October 3, 1803, he spent his childhood in South Carolina.
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 ...
William Shakespeare [a] (c. 23 [b] April 1564 – 23 April 1616) [c] was an English playwright, poet and actor.He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist.
He also contends in the work that Shakespeare "invented" humanity, in that he prescribed the now-common practice of "overhearing" ourselves, which drives our changes. The two paragons of his theory are Sir John Falstaff of Henry IV and Hamlet , whom Bloom sees as representing self-satisfaction and self-loathing, respectively.
The above tables exclude Shakespeare's Titus Andronicus (composed c. 1589, revised c. 1593), which is not closely based on Roman history or legend but which, it has been suggested, may have been written in reply to Marlowe's Dido, Queene of Carthage, Marlowe's play presenting an idealised picture of Rome's origins, Shakespeare's "a terrible ...