Beam gravity engine...

[iacob alex]

.....so easy to test , has the shortest spare parts listing :
     -two beams
     -a byke's pedal crank
     - two fulcrums
    So, can we  play a possible self running Class 1,2,3  oscillatory leverage?
      Al_ex

[Low-Q]

.....so easy to test , has the shortest spare parts listing :
     -two beams
     -a byke's pedal crank
     - two fulcrums
    So, can we  play a possible self running Class 1,2,3  oscillatory leverage?
      Al_ex

It's easy to test, but I can't see that it's neccessary. However, I cannot stop people from trying. Last time I made a trip with my bicycle I really had to work those pedals all the time. No free ride :-)

[iacob alex]

.....is a possible second class lever simple machine , playing variable/oscillatory leverage , as follows :
     http://imgarcade.com/1/second-class-lever-simple-machine/  with :
     -Ld=constant
     -Ed=oscillatory(to and fro)
     We need a pair of counterbalanced beams , playing variable length ( Ed ) for simply supported beam , due to a Class 1 lever collecting the unbalance.
      Al_ex

[iacob alex]

.....has a very old "ancestor" , playing variable leverage , also :
     www.nubian-eco-village.com/example-of-a-working-shaduf/  ...see the short movie
     Every simple machine playing gravity has something "very ancestral" : the lever.
        Al_ex

[iacob alex]

.....if you make a connection with a lab-demo ( Loaded beam - moving scales...or variable support point ) , at :  www.physics.uci.edu/~demos/images/Demos/1j10.30.gif
  Effectively we can test a continuous unbalanced leverage ( a pair of beams with a variable support point, and a Class 1 equal arms lever ).
  Science is sometimes perception , or simply common sense but the certitude is one thing we can't get without a repeatable demonstration/test.
     Al_ex