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The Treadmill

Patented: History of Inventions

00:00

How Good Is This Throttle?

Treadmills were used in prisons from the early 1820s. But they quickly fell out of use because there wasn't a need for them. They became an instrument of torture as prison reformers tried to reform prisoners. The penal treadmill is abolished by the early 20th century, but you get a revival later on.

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