Wheel vs. lever...

[iacob alex]

     Hi  thx4 !
If we correlate our image/design with phenomenon ( gravity potential and rotational inertia...v=gt and KE )  , increasing the radius/gravity potential ...can we manipulate so easy a self reset  on the top position ! ? Maybe...if you take a look at :
     www.geocities.ws/iacob_alex/Some_Drafts/text045.jpg
Without a proof/test , this is for the moment a confusion or an uncertainty about what is happening ,only ?
Simply : if we make it bigger ?
     Al_ex

[kolbacict]

https://www.youtube.com/watch?v=vr0z2huKaCI&t=339s
Why don't they use this principle for drones? And for carrying small loads ?
Birds spend less energy to move the same load over a given distance.