Diamond shape or nested circles? Optical illusion

thingiverse

It's a mesmerizing shape, either two circles nested within each other or a diamond-like silhouette. Depending on how you rotate it or catch its reflection in the mirror, your perception of this figure shifts dramatically! This illusion is rooted in mathematical principles devised by Kokichi Sugihara. This design comes with a rotatable component and a supporting base, allowing you to display it either as a standalone figure or mount it on a flat surface. The smaller version seems to work better, at least that's my observation. For more of these mind-bending illusions, check out my collection: https://www.thingiverse.com/Matsemann/collections/matsemanns-ambiguous-cylinders If you're curious about the code and mathematical concepts behind these impossible objects, visit this GitHub repository: https://github.com/Matsemann/impossible-objects