Cube-in-a-Sphere Illusion


	A cube is inside a sphere and a sphere is inside a cube. The sphere in the cube seems to be larger even if the two spheres are equal. Move the two figures together and vary the plot range to see that the spheres are equal.


	Contributed by: Sándor Kabai

Square-in-a-Circle Illusion (Wolfram MathWorld)

"Cube-in-a-Sphere Illusion" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/CubeInASphereIllusion/

Contributed by: Sándor Kabai

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