Jon Callas
Tue, 26 Nov 2002 21:34:58 -0800
[Editor's note: Be sure to check out the link to the other shading illusions. -- jdcc]
From: Monty Solomon <[EMAIL PROTECTED]> Date: Tue, 1 Oct 2002 08:53:22 -0400 Subject: Checkershadow Illusion http://www-bcs.mit.edu/people/adelson/checkershadow_illusion.html