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Sir James Dewar FRS FRSE (/ dj uː ər / DEW-ər; [1] 20 September 1842 – 27 March 1923) was a Scottish chemist and physicist. He is best known for his invention of the vacuum flask , which he used in conjunction with research into the liquefaction of gases.
Diagram of a vacuum flask Gustav Robert Paalen, Double Walled Vessel. Patent 27 June 1908, published 13 July 1909. The vacuum flask was designed and invented by Scottish scientist James Dewar in 1892 as a result of his research in the field of cryogenics and is sometimes called a Dewar flask in his honour.
Thermos LLC is a manufacturer of insulated food and beverage containers and other consumer products. The original company was founded in Germany in 1904. [2]In 1989, the Thermos operating companies in Japan, the UK, Canada and Australia were acquired by Nippon Sanso K.K., which had developed the world's first stainless steel vacuum bottle in 1978, [3] before it renamed itself Taiyo Nippon ...
In 1881, he applied the vacuum flask of James Dewar to chemistry, using it as a cold trap. The flask itself was patented in 1903 by the glassblower Reinhold Burger [ de ] , who founded Thermos GmbH on its basis.
In 1892, Sir James Dewar invented a container that could keep liquids hot or cold (the thermos) which led three men – Tsiolkovsky, Robert Goddard, and Hermann Oberth – to construct a large thermal flask for either liquid hydrogen and oxygen or for solid fuel combustion for use in rocket propulsion, applying the thermal flask principle to ...
Dewar may refer to: . Clan Dewar; Dewar (caste), a fishing caste from India Vacuum flask (also known as a Dewar flask), a vacuum-insulated container used to maintain internal temperature for extended periods, named for British chemist James Dewar
James Dewar (1842–1923), UK – Thermos flask Aleksandr Dianin (1851–1918), Russia – Bisphenol A , Dianin's compound William Kennedy Laurie Dickson (1860–1935), UK – motion picture camera
Dewar flasks are named after their inventor, James Dewar, the man who first liquefied hydrogen. Thermos bottles are smaller vacuum flasks fitted in a protective casing. Cryogenic barcode labels are used to mark Dewar flasks containing these liquids, and will not frost over down to −195 degrees Celsius. [18]