Watt Steam Engine

The Watt steam engine was James Watt's improvement on earlier steam engines, adding a separate condensation chamber kept apart from the main power cylinder so the cylinder itself stayed hot throughout the cycle rather than being cooled by water sprays on every stroke as the Newcomen atmospheric engine was. That single change made the fully developed 1776 version use about 75 percent less fuel than an equivalent Newcomen engine, and after Watt partnered with Matthew Boulton in 1775 the design was manufactured with a new precision that made it commercially practical. Later additions, including the sun and planet gear and a rotary output, let the engine drive machinery directly rather than only pump water, freeing factories from the need to be built beside a river for water power and making the Watt engine a driving force of the Industrial Revolution. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/