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Treadmill A treadmill is a device generally for walking, running or climbing while staying in the same place Treadmills were introduced before the development of powered machines, to harness the power of animals or humans to do work, often a type of mill that was operated by a person or animal treading steps of a treadwheel to grind grain...
John Stuart Mill John Stuart Mill: John Stewart Mill was a philosopher, an economist, a senior official in the East India Company and a son of James Mill Mill is most well-known for his 1848 work, "Principles of ....