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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 ).
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.
Magnetic refrigeration. Gadolinium alloy heats up inside the magnetic field and loses thermal energy to the environment, so it exits the field and becomes cooler than when it entered. Magnetic refrigeration is a cooling technology based on the magnetocaloric effect. This technique can be used to attain extremely low temperatures, as well as the ...
An icemaker, ice generator, or ice machine may refer to either a consumer device for making ice, found inside a home freezer; a stand-alone appliance for making ice, or an industrial machine for making ice on a large scale. The term "ice machine" usually refers to the stand-alone appliance. The ice generator is the part of the ice machine that ...
That is what greeted Vice President Kamala Harris and Gov. Tim Walz when they landed at the Detroit airport on Wednesday for a rally with the United Auto Workers: the hopes and struggles of the ...
James Harrison (engineer) James Harrison (17 April 1816 – 3 September 1893) was a Scottish Victorian newspaper printer, journalist, politician, and pioneer in the field of mechanical refrigeration. [1] Harrison founded the Geelong Advertiser newspaper and was a member of the Victorian Legislative Council and Victorian Legislative Assembly.
Federal health regulators on Friday declined to approve the psychedelic drug MDMA as a therapy for PTSD, a major setback for groups seeking a breakthrough decision in favor of using mind-altering ...
The original "refrigerator" was a household appliance that kept food cold using blocks of ice; now called the "icebox", these cabinets became popular in the 1800s and early 1900s. The first modern electrical refrigerator to see widespread use was the General Electric "Monitor-Top" refrigerator, introduced in 1927, and refrigerators became ...