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Californian Samuel Knight created a new impulse machine that took impulse science to a new level.
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The impulse turbine was created in 1883 by Swedish engineer De Laval.
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American engineer Lester Allen Pelton patented the impulse turbine.
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William Doble improved Pelton's design with an elliptical bucket.
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Viktor Kaplan created the Kaplan turbine, a machine like a propellor.