Sir james dewar biography of mahatma

British chemist and physicist (–)

For other people named James Dewar, see James Dewar (disambiguation).

Sir James DewarFRS FRSE (DEW-ər;^[1] 20 September – 27 March ) 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. 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 was never so honoured.^[2]

Early life

James Dewar was born in Kincardine, Perthshire (now in Fife) in , the youngest of six boys of Ann Dewar and Thomas Dewar, a vintner.^[3] He was educated at Kincardine Parish School and then Dollar Academy.

His parents died when he was He attended the University of Edinburgh where he studied chemistry under Lyon Playfair (later Baron Playfair), becoming Playfair's