Circle with inner square, or opposite? Optical illusion
thingiverse
It's a square with circles inside or circles with squares inside? Rotate it or view it in the mirror and something entirely different emerges. Based on math from Kokichi Sugihara. Best viewed at a 45-degree angle. A rotatable figure plus support are included. You can find more of my illusions here: https://www.thingiverse.com/Matsemann/collections/matsemanns-ambiguous-cylinders The code and other information are available on GitHub: https://github.com/Matsemann/impossible-objects
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