2 - A Pure Mathematical Creation? previous next

The icosahedron is the subtlest of the Platonic solids:

Tetrahedron Octahedron Icosahedron Cube Dodecahedron

Benno Artmann wrote:

The original knowledge of the dodecahedron may have come from crystals of pyrite, but in contrast the icosahedron is a pure mathematical creation.... It is the first realization of an entity that existed before only in abstract thought. (Well, apart from the statues of gods!)

The Platonic solid pictures are from the Wikipedia article on Platonic solids.

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For more information see:

The picture of an iron pyrite crystal is from Hershel Friedman's webpage on Pyrite, part of his website called The Mineral and Gemstone Kingdom.