I have received an e-mail with a video about the latest wonder of science which was a natural magnets powered engine based on Bowman, Prandini or Perendev engines. Unfortunately it was a hoax, nobody has ever managed to put such contraption to work. there are several videos at youtube about these, until now, unsuccessful attempts.
The Perendev says it should be something like this. The rotor magnets must be spaced at 1/2 the diameter of the rotor magnets diameter used. The same size magnet must be used in the stator. The magnets in the stator can be spaced at the same measurement. The rotor magnets should be shielded to keep from stressing the magnet fields that are so close together.
But, there are ways to create linear motion with V shaped formations of magnets, those were developed by Robert H. Calloway. Who recently claimed to have the solution to this question.
Does someone know people who are intelligent enough to join this international goose chase?
Hope so! Iīm trying for myself, but here in Brazil itīs impossible to find powerful magnetic beads to make it real, but my engine runs farther on magnets than with itīs own bearings (skateboard wheels).
Letīs give it a shot!
You were talking about all of the youtube videos and none of them seem to work or seem to be likely to be built exept one i found. 
