Checkerboard Bulge Illusion

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This illusion gives the appearance of the checkerboard bulging in the center when some smaller squares or circles are inserted in the squares near the center. However, when the smaller shapes disappear, you can see that the checkerboard is in fact undistorted. This Demonstration includes controls that change the appearance of the board in order to show how slight alterations affect the illusion.

Contributed by: Priyanka Multani (March 2017)
Open content licensed under CC BY-NC-SA


Snapshots


Details

This was a project for Advanced Topics in Mathematics II, 2016–2017, Torrey Pines High School, San Diego, CA.



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