From ocean waves:

Ends and adjacent centers turn 1/2
New centers meet and turn 3/4, forming a wave across the center
New very centers meet and turn 1/2 while the ends turn in to form stars
The stars (gears) turn 3/4, forming a new wave across the center
Very centers turn 1/2; ends of the central wave DON'T MOVE
   those not in the wave peel out to become the ends of new waves
Finally, the very centers and adjacent dancer turn 3/4 to complete the waves.

To see Spin Chain the Gears in more detail, click here:

Note: TAMINATIONS will open in a new window.