James Watt, FRS, FRSE (1736–1819) was a Scottish inventor and mechanical engineer whose improvements to the Newcomen steam engine were fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world. Watt has been described as one of the most influential figures in human history. He developed the concept of horsepower and the SI unit of power, the "watt," was named after him.
James Watt (1736 – 1819) was a Scottish inventor, mechanical engineer and chemist. He is famous for developing a separate condensing chamber for the steam engine. (This invention greatly improved the efficiency of the steam engine.)
A watt beam engine. designed by james watt, it improved on the earlier newcome(?) steam engine and was widley adopted often used to pump water out of mines or into canals.( beginnings of industrial revolution 1750's) wiki page has lots of detail on this
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