James Dewar

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Sir James Dewar FRS FRSE
Born	(1842-09-20)20 September 1842 Kincardine-on-Forth, Scotland
Died	27 March 1923(1923-03-27) (aged 80) London, England
Alma mater	University of Edinburgh
Known for	Cordite Diffuse and Sharp series Liquid oxygen Solid oxygen Liquid hydrogen Solid hydrogen Dewar flask Dewar benzene
Awards	Hodgkins gold medal (1899) Bakerian Medal (1901) Lavoisier Medal (1904) Rumford Medal (1894) Matteucci Medal (1906) Albert Medal (1908) Davy Medal (1909) Copley Medal (1916) Franklin Medal (1919)
Scientific career
Fields	Physics, chemistry
Institutions	Royal Institution Peterhouse, Cambridge
Doctoral advisor	Lord Playfair

Sir James Dewar FRS FRSE (/djuːər/ DEW-ər;^[1] 20 September 1842 – 27 March 1923) was a British 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. He also studied atomic and molecular spectroscopy, working in these fields for more than 25 years. Dewar was nominated for the Nobel Prize 8 times — 5 times in Physics and 3 times in Chemistry — but he never succeeded in winning it.^[2]