The swimming of a dead fish (2018)

Re:The swimming of a dead fish (2018) by JoeAltmaier on Wednesday April 20, 2022 @02:26PM (#31100992)

Reframe the system to the moving water. The fish is then swimming upstream.

All frames of reference are valid. So yes, perpetual motion.

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Re:The swimming of a dead fish (2018) by PeterisP on Wednesday April 20, 2022 @10:06PM (#31105331)

Reframe the system to the moving water and put a watermill or a hydroelectric power plant in there in there - perpetual motion and extracting energy. A flowing river is not a closed system.

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Re:The swimming of a dead fish (2018) by plutonorm on Wednesday April 20, 2022 @06:06PM (#31103686)

what about sailing up wind?

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