Basic mechanics...

[iacob alex]

...as a theoretical "support" for a possible peripetuum mobile " challenge" , at :
  www.evert.de/eft342e.htm
Anyway , you can find there some interesting excerpts...
   Al_ex

[MarkE]

...as a theoretical "support" for a possible peripetuum mobile " challenge" , at :
  www.evert.de/eft342e.htm
Anyway , you can find there some interesting excerpts...
   Al_ex

Where has he gotten in the fourteen years since he posted that?

[iacob alex]

...as a suggestive natural starting point , if we intend to play a "perpetuum mobile game " . at :
    www.youtube.com/watch?v=uGBANgbRkws
Simply , we can use a continuous torque difference ( unbalance ) , on the same side of fulcrum , due to a variable / oscillatory leverage...
     Al_ex