Optical Illusion - Rotating Rings Ornament
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Turn the rings with a finger. Your eyes will be surprised as the rings appear to nutate/ roll upon each other.
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- Źródło
- Printables
- Kategoria
- Winter & Christmas & New Year's
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- Creative Commons — Public Domain
This optical illusion makes the brain perceive the rings rotate upon each other (nutate) when turned with your finger.
I first saw this on Dave Garroway's TV Morning Show a few decades past.
The center column is designed for holding by hand or hanging on the Christmas tree. The bearing is a light press-fit into the ring.
The bearing is 22 x 8 x 7 mm tall. They cost $5 for 10 pieces from Amazon.
The hole for the bearing in the original design was small, requiring lots of sanding. I revised the hole size so it requires little if any sanding.