> Thank you for your reply, Bob!  I'm quite fascinated of gears and clocks.
> My image consists of 512 gears, each fitted with a pinion gear, where the
> ratio between the pinion gear and the drive gear is 12.
> 
> This means that you have to turn the first gear 12 times around to make
> the
> second gear rotate 360 (12^1) degrees.  To make the third gear rotate 360
> degrees, you have to rotate the first gear 144 times (12^2), and so on...
> And finally, to turn the last gear 360 degrees, you must turn the first
> gear
> 12^511 times around...  A very slow movement!

I saw this idea somewhere in a "modern" sculpture, it was a series of gears
(10 or 12?), on one end there was an electric motor rotating the first
gear, the other end was firmly attached to a concrete block. It said quite
a few (hundreds?) years had to go before this last end moved appreciably.

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