History of the Vacuum Flask*

Abstract

FEW laboratory devices have achieved the popularity of the vacuum flask. Since Sir James Dewar designed it for the purpose of preventing his liquid air from rapid evaporation, the flask has become a household friend and an invaluable tool in the laboratory and the workshop. It is so very simple and yet so very efficient. Each of the ways by which heat can pass from place to place, by convection, by conduction and by radiation, is almost entirely blocked, with the result that everyone knows.

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BRAGG, W. History of the Vacuum Flask*. Nature 145, 408–410 (1940). https://doi.org/10.1038/145408a0

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