It's an incredible work of creativity and 3d design. Akinori Goto designed a zoetrope so that it shows a dancer at work when a narrow band of light is projected through it. He used a 3d printer to create this complex work that required precise measurements to work properly.
It flows perfectly and gracefully when activated, even though it looks like just a mass of 3d filament when it's turned off.
This is one of at least two zoetropes that Goto has created. You can see the other at Colossal.
-via Swiss Miss