09-06-2013, 10:48 PM
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#13
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VIP Member
Join Date: May 2011
Location: churu
Posts: 122,463
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Re: How Things Work
How the Spinning Dancer Illusion Works
The Spinning Dancer is a kinetic, bistable optical illusion resembling a pirouetting female dancer. Some observers initially see the figure as spinning clockwise and some counterclockwise. Additionally, some may see the figure suddenly spin in the opposite direction. The illusion derives from an inherent ambiguity from the lack of visual cues for depth.
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