http://knol.google.com/k/paradox-of-classical-mechanics-2# This site describes hypothesis for rotational and rotanslational motion is standalone natural phenomenon with it's own law of momentum conservation. However The classical mechanics have only 2 motions(rotational and translational) with theirs own law of momentum conservation. The rotational and translational motion is just a sum of two independent motions. Main idea of the projects is repeat an experiment from this site and prove or disapprove this hypothesis. The sum of translational momentums of all objects for both sides on horizontal axis x of the experiment should be equal. Or if hypothesis is correct, the rod with rotational and translational motion will have a lower horizontal translational velocity.