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StephenBuckley · 4342 days ago · link · · parent · post: I just realized where mk got the idea for the hubwheel.
I'm not familiar with the thing on the left. Can you explain?
It's a very popular optical illusion, shown in many textbooks. Basically, the orange circles in the middle are both the exact same size, even though they look like different sizes, due to the size of the blue circles surrounding them. I knew it looked familiar, but I couldn't quite put my finger on it until today.
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