Bob Hughes <inv### [at] aolcom> wrote in message news:371BB225.808E7997@aol.com...
> Ah ha. I was trying to rescale the sphere vertically while rotating and
> keeping it lengthwise in the vertical. Then as it moved across the floor
> it would grow and shrink back again as it moved upward and back down.
> All wrong.
> You needed an ellipse "rolling" along shorter diameter going closer then
> back to starting orientation with the floor. I see now. Maybe.

Yes..you have it ;-)

Here we see the difficulty in solving a problem when it takes this many posts in a
thread
to even ascertain the nature of the problem ;-)

Maybe the fault lies with my explanation. Ah well......

all the best,

Andy

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