Illusions contest: The steerable spiral
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Don't believe your eyes: This year's best illusions
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Illusions contest: Stretching out in the tub
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Illusions contest: Non-glossy gloss
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Illusions contest: Six ways to see two curves
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Illusions contest: Blurry heart
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Illusions contest: Monkey business illusion, take 2
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Illusions contest: Illusion-defying contours
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Illusions contest: After-image twist
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Life
'Impossible motion' trick wins Illusion Contest
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