Sensitize your model...

[iacob alex]

    ...or prototype,if you have in mind some experiments,simply...reducing the friction.

       The suggestion is reffering to replace one kind of friction(sliding), with a smaller one(rolling).

       You can easy understand,what's talking about,if you take a look at   www.geocities.com/iacob_alex/Some_Drafts/text014.jpg   with the title " Free Gravity Rolling 02".

                           All the Bests! / Alex

[Michelinho]

Hi iacob Alex,

That is sure one way to do it.

Take care,

Michel

[iacob alex]

         Hi Michel!

  If we have a smaller friction,and a possible self-turning phenomenon appears,we can detect it.

  This kind of motion is an "old" one:remind the use of animal(and human sometimes...) power to move the "things"

         All the Bests! / Alex