Mathematical Perpetual Motion
We don't know who first noticed the rotational symmetry of the numbers "6" and "9". But obviously, since 9 is greater than 6, the side with the 9s is heaver, and this wheel should rotate in the direction shown. Of course, mathematical truths do not always translate to physical truths.
demonstrated by the IX-XI wheel. It even works with abbreviations as in the
up and dn wheel. Here the arrows
enhance the impetus of the wheel.
