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Jan 1, 1050
Hero's steam engine
This was the first mechanical device to use heat as a form of energy -
Denis Papin
Designed the first heat engine, which used steam to do work. -
The Savery Engine
This was the first steam powered pump, which was originally used to pump water out of mines -
The Newcomen Engine
An improvement on the Savery engine, the condensation of steam caused the piston to move down, at which point the steam would push it back up again, and repeat. -
The Watt Engine
An improvement of efficiency on the Newcomen engine, this engine heated and cooled the water in seperate compartments to maximize efficiency, all while maintaining the same piston power.