central river for automatic stabilization?

> On Jul 26, 2014, at 8:54 AM, ronfox@...
> ronfox@... [ssi_list] ssi_list@...
>
>> For those of us too lazy or ill equipped to do the the math, visualize
>> a bucket of water situated on a spinning platter.
>
> This is a poor model. Actually, not even close. In our case all of the
> water is constrained to the walls of the cylinder (locally two
> dimensional) and moves around to different parts of the cylinders walls
> as the cylinder wobbles.

A better model might be a set of ball bearings in a race -- but not
completely filling the race, so there is room for them to redistribute
the weight by moving around.

Could make an interesting science fair project.

- Joe