John Dalton 3

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also did not feel that John would like being a physician in the long run.
Later at the age of twenty six John discovered that he was color blind. This occurred when his mother and he were fighting about the color of a skirt.
In 1793 John moved to Manchester to tutor. This is where he began working on his greatest work. He then joined a group called Manchester Literary and Philosophical Society. In 1773, he published his first book, Meteorological Observations and Essays. What he wrote in the was "Each gas exists and acts independently and purely physically, rather than chemically." John was constantly studying and making observations. John made over 200,000 observations. In 1803, he attempted to explain his laws of partial pressures. That’s when John started to explain his major contribution to science called the atomic theory. He figured this when he was studying for a test! He figured out that the reaction can take place on two different portions in exact ratios.
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