Answer:
He perfected a new source of energy.
Explanation:
James Watt, who, directing the power of his extraordinary mind to improving the steam engine, increased the wealth of his country, increased the strength of human, occupies the place among the most prominent adherents of science and the true benefactors of mankind. In January 1769, James Watt received a patent for his invention. In fact, he did not invent a steam engine, but only modernized what was invented before him. But the technical nuances introduced by him were enough to make the device efficient for using steam energy in industry. This gave an impetus to the industrial revolution and forever entered the name of James Watt in history.
