Heat engines always give off a certain amount of heat to a lowtemperature reservoir. Would it be possible to use this “waste”heat as the heat input to a second heat engine, and then usethe “waste” heat of the second engine to run a third engine,and so on?

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Heat engines always give off a certain amount of heat to a lowtemperature reservoir. Would it be possible to use this “waste”
heat as the heat input to a second heat engine, and then use
the “waste” heat of the second engine to run a third engine,
and so on?

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