anderscolingustafson wrote:In 3d there are basically two ways to form the shape of a snow flake. One is to put two triangles together,
the other is to attach six triangles to a hexagon.
The 3d closest 3d equivalent of a hexagon is an icosahedron and the 3d equivalent of a triangle is a tetrahedron. In 3d if you put two tetrahedrons together you get a different shape than if you put tetrahedrons on the surface of an icosahedron. So in 4d if snow flakes were 3d shapes there would be two shapes for the 4d equivalents of the shape of a snow flake, one coming from laying two tetrahedrons on each other and the other from putting tetrahedrons around an icosahedron.
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