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The Spinning Dancer and the Brain

Written By Admin on Saturday, August 16, 2014 | Saturday, August 16, 2014

Which way is the dancer spinning?

The Spinning Dancer, also known as the silhouette illusion, is a kinetic, bistable optical illusion resembling a pirouetting female dancer. The illusion, created in 2003 by web designer Nobuyuki Kayahara, involves the apparent direction of motion of the figure. Some observers initially see the figure as spinning clockwise (viewed from above) and some anti-clockwise. Additionally, some may see the figure suddenly spin in the opposite direction.

If the foot touching the ground is perceived to be the left foot, the dancer appears to be spinning clockwise (if seen from above); if it is taken to be the right foot, then she appears to be spinning anti-clockwise.


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