A very large finger disturbs the calm surface of a pond and creates a series of ripples.  Or… a man throws a rock into the water, quickly positions his finger in front of the camera, and then takes a quick forced perspective photograph.

Other Optical Illusions You Might Enjoy

Moving Snakes Motion Illusion

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Delboeuf Illusion

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Dual Axis Illusion

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All Is Vanity by Charles Allan Gilbert

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Charlie Chaplin Optical Illusion

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The Art of Optical Illusions Book

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