Individual Research Projects Section 7.1

Project 7.1

What are optical illusions?

What are the following optical illusions:



Find some unusual optical illusions and illustrate with charts, models, advertisements, pictures, or


Martin Gardner, “Mathematical Games,” Scientific American, May 1970.

Richard Gregory, “Visual Illusions,” Scientific See the whole entry

Reference Topics 7-1

Euclid’s Elements can be found at:

These sites give some great examples of symmetry.

Problem 1 presents an optical illusion. If you like this sort of problem you might enjoy checking out this site.

You might be … See the whole entry