Seeing isn’t always believing!

What did you just see? You probably saw a piece of clay with different shapes pressed into it. A few seconds later, the shapes seemed to be popping out.

What you really saw was the EXACT SAME image, but it was simply flipped upside down. Your eyes tricked you into seeing something different. (To see this animation again, click here.)

Enter the world of optical illusions where your eyes may see things that your brain doesn’t understand. Explore how and why you see optical illusions, and discover the many types created over time. Find out how they are a part of art, science, math and our everyday lives. See for yourself how your eyes can fool you by exploring our optical illusion gallery. You may never see things the same again!

Be sure to visit our activities page where you can have fun testing your knowledge with quizzes, playing hangman, taking a scavenger hunt and more.

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This site was created for ThinkQuest Jr. March, 2001

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