.....http://peswiki.com/images/f/f3/Snovak_gravityMagnetMotor_anim.gif
vs.
https://m.youtube.com/watch?v=Rgp6gcSaF2Y
Al_ex
i do not think those two examples are fair to be a comparision.
for one, they are not the same in design.
two, the 'reality' version did not allow for viewing a full rotation of the wheel.
three, not only was there no full rotation, there was no proof that airflow or magnets were not involved with the metal contraption.
four, one was a animation, the other wasn't.
the animation of the magnets working to make that wheel rotate did look almost possible.
if weights were to shift like that because of opposing magnetic fields, it does seem like it could work, depending on if the magnets are powerful enough to reach the distant secondary magnet.
can magnetic fields help to be focused by being directed through a barrel chamber that has a shielding around the chamber, to overcome the distance the hub creates? it might. would have to do some tests of that.
would the magnets be affected by the other magnets in close promixity? yes.
and that is why it might not work without shielding / field dampeners.
had the diameter of the hub been greater to avoid opposing fields, then maybe this could work.
it would have to built and tested.
then maybe recycled back into useful parts.