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Tag Archives: geometry
Seven Rainbow Polyhedra
These were made using Stella 4d, which may be tried for free at http://www.software3d.com/Stella.php.
Two Polyhedra Featuring Regular Pentadecagons
This polyhedron has 92 faces: twelve regular pentadecagons, twenty equilateral triangles, and sixty isosceles triangles, each with a vertex angle of ~42.5°. Its first stellation appears below. Both models were created using Stella 4d, software you can try for yourself … Continue reading
Posted in Mathematics
Tagged geometry, Mathematics, pentadecagon, polyhedra, polyhedron
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Four Polyhedra Featuring Enneagons
Enneagons are also called nonagons; they are polygons with nine sides. I used Stella 4d to make these four rotating polyhedra, and you may try this program for yourself at http://www.software3d.com/Stella.php.
Posted in Mathematics
Tagged enneagon, geometry, Mathematics, nonagon, polyhedra, polyhedron
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Tessellation of Triangles and Pentagons
Alternately, this can be seen as a tessellation of hexagons and enneagons. Which do you see?
Posted in Mathematics
Tagged enneagon, geometry, hexagon, Mathematics, nonagon, pentagon, tessellation, triangle
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The C-320 Fullerene Polyhedron
The duals of the geodesic domes are polyhedra with hexagonal and pentagonal faces. This particular one has 320 vertices, with those vertices representing carbon atoms. Here is C-320 as a polyhedron. The next image shows this molecule as a ball-and-stick … Continue reading
Posted in Mathematics, Science and Scientists
Tagged 320, c, C320, carbon, chemistry, fullerene, geometry, Mathematics, molecular, molecule, polyhedra, polyhedron, science
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The Construction of a Zome Model of a 240-Atom Fullerene Molecule, In Seven Pictures
You can buy your own Zome at http://www.zometool.com.
