Kragnes Korner

Sir James Dewar
1842 - 1923

British chemist and physicist; b. Scotland

Professor at the Royal Institute, London, and later director of the Davy-Faraday Research Laboratory. He was knighted in 1904. Best known for his work on the properties of matter at very low temperatures and the liquefaction of gases, he liquefied and solidified hydrogen and invented the DEWAR FLASK.

Dewar flask

A container for storing hot or cold substances, e.g., liquid air. It consists of two flasks, one inside the other, separated by a vacuum. The vacuum greatly reduces the transfer of heat. The common thermos bottle is an adaptation of the Dewar flask.

Concise Columbia Encyclopedia
Copyright (c) 1983, 1989
Columbia University Press