Frazer Spiral - Optical Illusions - Online Illusions - Optical Tricks - Optic Illusions - Eye Tricks

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Optical Illusions
Frazer Spiral

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Optical Illusions

Frazer Spiral
This spiral design is not a spiral at all. Try to trace the lines around the circle from any point and you will discover that what looks like a continuous line is really separate circles. The continuous spiral effect is caused by orange line segments that cross the circles at an extreme angle. They give the circles a "twisted cord" effect and distort them into a illusionary spiral.


Click on the image to enlarge


Recommended Reading

cover The Great Book of Optical Illusions
by Al Seckel

cover The Science of Illusions
by Jacques Ninio, Franklin Philip (Translator)

cover Classic Optical Illusions
by Gyles Daubeney Brandreth, Michael A. Dispezio, Katherine Joyce, Keith Kay, Charles H. Paraquin, Bob Longe, David Knowles, Charles Barry Townsend

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    Last Updated May 6, 2012

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