He did NOT invent the steam engine. He improved it in two ways.
1) He investigated why early steam engines were so inefficient, and how to cure that problem.
2) He developed rotative motion so that the previous engines, which were purely reciprocating steam-pumps for mines, could be made to drive factory machinery.
He was the technical one of the business partnership with Matthew Boulton, a machinery manufacturer based in Birmingham (English Midlands).
No, he improved on Newcomen's design for pumping engines.
James Watt
IN INDIA
He improved steam engine.
1758
1769
James Watt
1775
James Watt did not invent the steam engine. However he did improve the design made by Newcome. James Watt was an inventor all of his life. He invented many many things he made improvements on instruments and others.
No, James Watt did not invent the light bulb. The light bulb was invented by Thomas Edison in 1879. James Watt was known for his improvements to the steam engine.
James Watt (1736-1819) is credited with the 1765 improvement of the steam engines of Thomas Newcomen (1664-1729), which dated from 1712. The efficiency of the Watt engine led to its wide industrial use after Watt partnered with Matthew Boulton in 1775.
James Watt did not invent the steam train. The steam train was developed by George Stephenson in 1814. James Watt did, however, pioneer improvements to the steam engine, which eventually led to the development of steam-powered locomotives.