I’m a fan of optical illusions

I came across the Koffka ring and the Checkershadow optical illusions earlier this morning. Very cool! Here’s the checkershadow in-lined:

(the square labelled ‘A’ and the square labelled ‘B’ are the same color!)

Seeing these two optical illusions reminded me of the rotating snakes optical illusions that I think were slashdotted a long time ago. He’s got a few new ones up that are as interesting and along similar lines as the original.

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