This is a great visual illusion.
The top and bottom chess pieces radiate the same luminance. (I did some sampling to check, and it seems to check out.)
(Tip of the cap to Luiz Pessoa.)
6 days ago
My name is Mason Porter. I am a Professor in the Department of Mathematics at UCLA. Previously I was Professor of Nonlinear and Complex Systems in the Mathematical Institute at University of Oxford. I was also a Tutorial Fellow of Somerville College.
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