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The Platonic Solids
The Platonic Solids are the regular polyhedrons. There are only five of them. They are the tetrahedron, hexahedron (cube), octahedron, dodecahedron and icosahedron. The first three mentioned have been known since ancient times. The remaining two plus the original three were definitely known by the Pythagoreans. Plato believed that the elements were shaped like the platonic solids; that they were the solids.
The tetrahedron represents fire since fire is the lightest element and has a sharp sting. …
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