Oscillatory leverage...

[iacob alex]

.....can be related to :  www.evert.de/eft706e.htm
          Al_ex

[ARMCORTEX]

like this

[iacob alex]

.....due to a wind-input , at :  https://m.youtube.com/watch?v=mirBGzYtQ8Q
     The problem is to replace the wind-input ,with a gravity unbalance-input , so to obtain , to succeed in gaining a continuous motion due to gravity unbalance/free fall and inertia , only.
        Al_ex