Perpetual Engine of John  Hurford, Perpetual Spring Engine

Perpetual Engine of John Hurford, Perpetual Spring Engine

Two modern designs of Perpetual motion machines, Perpetual Spring Engine https://patents.google.com/patent/US6... Hurford; John J To watch and comment new video before others and support my channel, please join the perpetual project:    / @veproject1   #veproject1 Perpetual Spring Engine