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This was the first mechanical device to use heat as a form of energy
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Designed the first heat engine, which used steam to do work.
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This was the first steam powered pump, which was originally used to pump water out of mines
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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.
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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.
