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Optical Illusions
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Demonstrations 21  40 of 69
Disappearing Lines in a Rectangle
Disappearing Lines around a Circle
Equal Areas
The Simultaneous Contrast Effect
Rotating Polygon Illusion
Poggendorff Illusion
Irradiation Illusion
Orbison's Illusion
Length of Line Illusion
CubeinaSphere Illusion
Ames Room
Flicker Colors
Conical Anamorphic Projection of Polar Plots
Necker Cube
What Color is the Moving Circle?
Necker Cube: A Variation
Missing (or Extra) Square Optical Illusion
Are These Lines Straight?
Roget's Palisade
Are the Lines Parallel?
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