> I've played with ferrofluids like the one you outlined. Visually
> fascinating with a multitude of uses but, IMHO, no good for balancing a
> Gary mechanism. Best to get a feel for the materials and visualise in your
> head. You know what they say, the best computing/visualisation device you
> have is right between your ears. <g>
Why would ferrofluids not help with balancing? Would it be to hard to
see distortions occur?