Hering's Illusion This applet requires Sun's Java VM 2 which your browser may perceive as a popup. Which it is not. If you want to see the applet work, visit Sun's website at http://www.java.com/en/download/index.jsp, download and install Java VM and enjoy the applet. Buy this applet A few words Copyright © 1996-2008 Alexander Bogomolny                   Hering Illusion Discovered in the 19th century by German physiologist Ewald Hering, it's a veritable classic now. Orbison illusion is one of its variants. Wundt illusion produces a similar, but inverted effect. References A. Seckel, The Art of Optical Illusions, Carlton Books, 2002 (#122) The Mind's Eye, Readings from SCIENTIFIC AMERICAN, W. H. Freeman and Company, 1986 Copyright © 1996-2008 Alexander Bogomolny

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