Spiral of Circles Optical Illusion
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The image appears to be a spiral, but in fact is a series of squares arranged in four concentric circles. You can untangle the illusion by checking "show the circles" and by setting "rotate squares" to about 1.2.
Contributed by: Marya Rana (February 2017)
Open content licensed under CC BY-NC-SA
Snapshots
Details
This was a project for Advanced Topics in Mathematics II, fall 2016, Torrey Pines High School, San Diego, CA.
Adapted from Confusing Circles at [1].
Reference
[1] "10 Optical Illusions That Will Blow Your Mind (Photos)." The Huffington Post. (May 23, 2013) www.huffingtonpost.com/2013/05/23/10-optical-illusions-that-will-blow-your-mind_n _ 3307500.html.
Permanent Citation
"Spiral of Circles Optical Illusion"
http://demonstrations.wolfram.com/SpiralOfCirclesOpticalIllusion/
Wolfram Demonstrations Project
Published: February 6 2017