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Physical Science

John Dalton

John Dalton
J.J. Thomson

  • In what country or countries did the scientist live and work?

For ten years John Dalton taught at a Quaker boarding school in Kendal he moved on to a teaching position in the burgeoning city of Manchester. The first paper he delivered before the society was on color blindness, which afflicted him and is sometimes still called "Daltonism."

  • When was the Scientist born? If no longer living, when did he or she die?

John Dalton was born in September. 6, 1766 in Eaglesfield, Cumberland and died in England July 27, 1844 at the age of 78

  • What area or areas of science did the scientist study?

Dalton, John, British chemist and physicist who developed the atomic theory of matter and hence is known as one of the fathers of modern physical science.

  • Summarizing the Scientists contribution to the atomic theory

Dalton discovered butylene and determined the composition of ether, finding its correct formula. Finally, he developed his masterpiece of synthesis - the atomic theory, the thesis that all elements are composed of tiny, indestructible particles called atoms that are all alike and have the same atomic weight.

  • Something interesting about the Scientist.

The exact date of some of his work, especially the atomic theory, is still in doubt because of this opportunity for revision. His documents were destroyed during the bombings of England in World War II. A fellow of the Royal Society, from whom he received the Gold Medal in 1826, and a corresponding member of the French Academy of Sciences, John Dalton was also cofounder of the British Association for the Advancement of Science. At his death more than 40,000 people came to Manchester to pay their final respects.


Matthew J. Stevenson
Physical Science
May 10, 2005
Mr. Syron