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did-you-kno-this-is-not-a-spiral-its-actually

did-you-kno:

This is not a spiral. It’s actually a series of concentric circles, but their decreasing size and the misalignment of the checkered patterns convinces your brain otherwise. Source

Trace the circles with your mouse cursor if you’re having trouble seeing it.

More examples of ‘The Fraser spiral illusion.’


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