Infinite Gear Ratio
Stacked plastic gears (the grey one is a Lego gear) in an infinite spiral. See its variation here.
strobists: 1/4 power Sigma EF-500 DG Super into silver umbrella 45° opposite camera, white foam core for fill on the shadow side, ISO 100, f/8, 1/100s.
©2008 David C. Pearson, M.D.