1769 – steam engine

The first primitive steam engines were invented by Thomas Savery and Thomas Newcomen and used to pump water from mines. In 1769, James Watt filed a patent for his improvements to the design of the steam engine which included; oil lubrication, insulation of the cylinder, and a separate condensing chamber. These improvements greatly increased the efficiency of the steam engine and made it possible to build larger and more powerful engines.

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