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Hans Lippershey invents the first refracting telescope.
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The earliest human-powered submarine invented by Cornelis Drebbel.
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Wilhelm Schickard created the first calculator machine.
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Frenchmen, Blaise Pascal invents an adding machine.
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Evangelista Torricelli invents the barometer.
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Christian Huygens invents a pendulum clock.
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Thomas Newcomen invents the steam machine.
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Gabriel Fahrenheit invents the first mercury thermometer.
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David Bushnell invents a submarine.
