......and the distant action , if you take a look at :
www.geocities.ws/iacob_alex/Some_Drafts/text020.jpg
www.geocities.ws/iacob_alex/Some_Drafts/text013.jpg
.....can be a starting point to develop simple arrangements for :
-gravity self powered "Twin" Wheels
-centrifugal thrust/propulsion
Al_ex