When people stop inventing perpetual motion machines, the decline of civilization will come.
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:
   • Perpetuum Mobile  Máquina de moviment...  
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Perpetual Motion: Hypothetical Machines That Could Run Forever Movimiento perpetuo