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Posts Tagged "Balls"

Illusion Chasers

Illusion of the Week: OK Go’s New Illusion Video

pink paint

Music videos by the alternative rock band OK Go are nothing if not creative. Their previous video “Here It Goes Again” featuring treadmill dancing was mesmerizing, and their newest video, “The Writing’s on the Wall”, is even more compelling, especially for those of us interested in matters of perception.

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Illusion Chasers

Illusion of the Week: The Knobby Sphere Illusion


The Knobby Sphere Illusion tricks your sense of touch. The sphere no longer feels round, but bumpy.

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Illusion Chasers

Penn & Teller’s Cups-and-Balls Magic Trick

visual information about the loading of the balls is readily available to the brain, yet the spectators still cannot see how the trick is done

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