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You are here : Home > Index of artists > Ted Adelson Amazing Art is continued on a new domain : Planet Perplex. Amazing Art wordt voortgezet op een nieuw domein : Planet Perplex.   Ted Adelson Checker Shadow - Ted Adelson It's very hard to believe, but the squares A and B are the same shade of gray. Click on the picture for proof. Even when you know it's true you'll still have trouble believing it. Number of ratings : 472. Rate :: 1995     Recommended reading     Links Lightness Perception and Lightness Illusions In-depth explanation about the perception of light and contract. For the scientifically interested. © 2003 Stefan Van den Bergh. All rights reserved. All artwork remains copyright of their respective owners. All M.C. Escher works © 2003 Cordon Art - Baarn - Holland. All rights reserved. Used by permission.