John Dalton
John Dalton (September 6, 1766 July 27, 1844) was an English chemist and physicist, born at Eaglesfield. He is most well known for his advocacy of the atomic theory and his research into color blindness.
Atomic theory
In 1800 he became a secretary of the Manchester Literary and Philosophical Society, and in the following year he presented the important paper or series of papers, entitled Experimental Essays on the constitution of mixed gases; on the pressure of steam and other vapors at different temperatures, both in a vacuum and in air; on evaporation; and on the thermal expansion of gases.
The second of these essays opens with the striking remark,
"There can scarcely be a doubt entertained respecting the reducibility of all elastic fluids of whatever kind, into liquids; and we ought not to despair of affecting it in low temperatures and by strong pressures exerted upon the unmixed gases further."
After describing experiments to ascertain the......
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