Perpetual motion machines 永久運動機

These are 5 working models of Perpetual Motion Machines I made for educational purposes. Not all of them are perfect, but they are still the part of the history of the world engineering. The mankind is looking for free energy for 1000 years resulting of discovery three Laws of Thermodynamics stated that perpetual motion is impossible.
Please watch the same video in high quality:
https://www.youtube.com/watch?v=fQQ8_PDAdfI
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Видео Perpetual motion machines 永久運動機 канала veproject1