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James Dewar

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Sir James Dewar
Sir James Dewar FRS
Born20 September 1842(1842-09-20)
Kincardine-on-Forth, Scotland
Dee'd27 Mairch 1923(1923-03-27) (aged 80)
Lunnon, Ingland
NaitionalityScots / Breetish
Alma materVarsity o Edinburgh
Kent forLiquid oxygen
Liquid hydrogen
AwairdsHodgkins gowd medal (Smithsonian Institution)
Lavoisier Medal (French Academy o Sciences)
Albert Medal (Ryal Society o Airts)
Rumford Medal (1894)
Franklin Medal (1919)
Scientific career
InstitutionsRyal Institution
Varsity o Cambridge
Doctoral advisorLaird Playfair

Sir James Dewar FRS (20 September 1842 – 27 Mairch 1923) wis a Scots chemist an physicist. He is probably best-kent the day for his invention o the Dewar flask, that he uised in conjunction wi extensive research intae the liquefaction o gases.

A plaque o Dewar bi Sir Bertram Mackennal (in 1925) wis pit up in the Ryal Institution (RI) London, whaur Dewar haed gien lecturs tae RI memmers, in 1904. An eemage o the event wis pentit bi Henry Jamyn Brooks an hings in the RI, wha hae forby yin o Dewar's origeenal flasks.[1]

Sir James Dewar lectur at Ryal Insitution, 1904 (Henry Jamyn Brooks)
oreeginal Dewar Flask, at Ryal Institution, London
Plaque o James Dewar at the Ryal Institution, London


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  1. "James Dewar lecturing on liquid hydrogen". www.rigb.org (in Inglis). Retrieved 19 Januar 2022.