On the 19th January 1736, Scottish inventor & entrepreneur James Watt was born. He became a successful inventor through some of his works including, most notably, the steam engine, rotary engine and copying system.
He is most known for his advancements on the steam engine. In 1781 he patented his improvements on the steam engine which included rotary motion, double acting engine, parallel motion and invention of the pressure gauge. He also developed the concept of ‘Horsepower’.
Through his improvements and inventions for the steam engine, Watt became a very wealthy man. He continued to develop ideas but none of his later inventions were as significant as his steam engine work. He died in 1819.
In 1960, the General Conference on Weights and Measures incorporated ‘watt’ as the unit of power in International System of Units.
Now, his name is marked on every light bulb around the world.