Dizzy Yourself Silly with Optical Illusions on the Web
You've now finished your tour through the oddities of human perception. But the fun doesn't need to end here.
Once upon a time, the only reliable place for average people to see optical illusions was in a somewhat baroque object known as a book. (If you're reading a non-electronic version of this text, you know what I'm talking about.) Books were wildly popular for many years, before becoming replaced by electronic pixels. Today, books are mostly remembered by some of the over-16 crowd as an odd early version of the Internet.
No matter what you think about the march of progress and the colonization of Earth by computers, the Internet has been good for optical illusions. There are dozens of Web sites that show optical illusions in all their glory. Here are some of the best:
Akiyoshi Illusions. The legendary creator of the rotating snakes illusion (shown on Your Shifty Eyes) also provides pages of hand-crafted illusions. See www.ritsumei.ac.jp/~akitaoka/index-e.html.
Purves Labs. This top-notch lab studies optical illusions and offers a see-it-yourself section that includes some of the most remarkable color and brightness illusions ever created. See www.purveslab.net.
Michael Bach's Illusions. Many of the illusions on this Web site are outfitted with multimedia extras, such as little movies that move parts of the optical illusion around so you can verify what you really want to know—that two lines are the same length, two shapes are ...
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