Category:Perpetual motion machines

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Perpetual motion 
work is continuously done without an external supply of energy
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Perpetual motion machines are supposed to be machinery that would give unrestricted free energy, preferably in support of other machines. According to modern scientific understanding, they are impossible.

Subcategories

This category has the following 5 subcategories, out of 5 total.

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Media in category "Perpetual motion machines"

The following 47 files are in this category, out of 47 total.