How James Watt improved the steam engine?

Answer 1

The engine of Newcomen was very wasteful of coal even if there have been many improvements to the engine. James Watt was a man who wanted to know the exactness of things. He studied the Newcomen engine very precise and was astonished on how there was a need of water to be injected to cool down the steam. He recognized that there was a relevant loss of power. Watt made many studies concerning steam pressure, which he used for his great cognition. He recognized that it was useles to cool down the same vessel and heat it again. In his patent, he formulated among other things two principles