Biography of John Dalton Dalton, John was born in Eaglesfield, in 1766 and died today 1844. Dalton was a British chemist and physicist, who developed the atomic theory of matter on which modern physical science was founded. He began a series of meteorological observations in 1787 and he continued them for 57 years. Dalton accumulated some 200,000 observations and measurements on the weather in the Manchester area. Dalton's had a big interest in meteorology which led him to study a variety of phenomena as well as the instruments used to measure them. He was the first to prove that rain is precipitated by a decrease in temperature, not by a change in atmospheric pressure. Dalton's most important contribution to science was his theory that matter is composed of atoms of differing weights that combine in simple ratios by weight In 1808 Dalton published a book call....

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