Free Gravity Rolling 01...

[iacob alex]

     ...favors some   "benefits" ,vis-a-vis another designs,as you can see:

          -smaller friction

          -fastest guided down-rush due to gravity

          - the "jump" stroke of the paired-equal masses( M1=M2),obtains some "help",due to a simultaneous translational motion....as in athletics.

       You can make your basic "movie" at     http://en.wikipedia.org/wiki/Cycloid

                      All the Bests / Alex

[iacob alex]

    ...uses a favorable circumstance for a translational-rotational movement.

       Take a look at:     www.geocities.com/Athens/Oracle/6622/pila-trajectory-stand-run.jpg

       We have a longer and a higher throw...the higher is our point of interest.

       Pay attention,the "jump" motion is small :we remake the arm difference,only.

                     All the Bests! / Alex