Excellent collection of Visual Phenomena
...otherwise known as "Optical Illusions". Check it out:
http://www.michaelbach.de/ot/index.html
I've seen many of these before, but really enjoyed finding so many in one place. The Lilac Chaser and Stepping Feet illusions are particularly interesting, IMHO.Archives
01/2000 04/2000 08/2000 09/2000 01/2001 07/2001 09/2001 10/2001 02/2002 03/2002 05/2002 06/2002 07/2004 08/2004 09/2004 10/2004 11/2004 12/2004 01/2005 02/2005 03/2005 06/2005 07/2005 08/2005 11/2005