Images for Mathematics

Mirror tricks

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The picture shows what happens when you put just one ball in a kaleidoscope, which is the "double" of the kaleidoscope corresponding to the symmetry group of a dodecahedron: we see 60 balls, organized in rings of 6 balls (where two mirrors meet at an angle of 60°) or 5 balls (where two mirrors meet at an angle of 72°).
You can see an analogous photo in the same kaleidoscope; or the photo of an analogous situation in a different kaleidoscope.
From the exhibition Simmetria, giochi di specchi - Symmetry, playing with mirrors.

The image belongs to the sections...:
The symmetry group of the dodecahedron (*532) (Symmetry)
In the red kaleidoscope (dodecahedron) (From the exhibitions of matematita)


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