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icosahedron |
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icosahedron (īkō'səhē`drən): see polyhedron polyhedron (pŏl'ēhē`drən), closed solid bounded by plane faces; each face of a polyhedron is a polygon . ..... Click the link for more information. . icosahedron a solid figure having 20 faces. The faces of a regular icosahedron are equilateral triangles icosahedron [ī¦kä·sə¦hē·drən] (mathematics) A 20-sided polyhedron. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The primary thesis in the Mysterium cosmographicum is that God created the (Copernican) universe to express the five platonic solids (the cube, tetrahedron, octahedron, icosahedron, and dodecahedron). Others, known as icosahedrons or ``bird cages,'' have a distinct geometric design. Shortly thereafter, the company began marketing the novelty item as the Syco-Slate; although the design remained relatively unchanged, the molasses was replaced with a form of generic anti-freeze and the laminated paper cube was replaced with a 20-sided die, or an icosahedron. |
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