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Tag Archives: convex hull
ThirtyFour Rotating, Convex, and NonChiral Polyhedra with Icosidodecahedral Symmetry
Most in the field call this type of symmetry “icosahedral,” but I prefer the term George Hart uses — along with “cuboctahedral” in place of “octahedral.” Each polyhedral image here was created with Stella 4d: Polyhedron Navigator. At this linked … Continue reading
Posted in Mathematics
Tagged convex hull, geometry, icosahedral symmetry, icosidodecahedral symmetry, Mathematics, polyhedra, polyhedron
2 Comments
A Polyhedral Journey, Beginning with the Snub Cube / Pentagonal Isositetrahedron Base/Dual Compound
The snub cube and its dual make an attractive compound. Since the snub cube is chiral, its chirality is preserved in this compound. If you examine the convex hull of this compound, you will find it to be chiral as … Continue reading
Posted in Mathematics
Tagged chiral, chirality, compound, convex hull, dual, geometry, Mathematics, pentagonal icositetrahedron, polyhedra, polyhedron, snub cube, stellate, stellation
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A Collection of Unusual Polyhedra
In the post directly before this one, the third image was an icosahedral cluster of icosahedra. Curious about what its convex hull would look like, I made it, and thereby saw the first polyhedron I have encountered which has 68 … Continue reading
Posted in Mathematics
Tagged convex hull, dual, geometry, Mathematics, polyhedra, polyhedron, stellate, stellation
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A Polyhedral Investigation, Starting with an Augmentation of the Truncated Octahedron
If one starts with a central truncated octahedron, leaves its six square faces untouched, and augments its eight hexagonal faces with trianglular cupolae, this is the result. Seeing this, I did a quick check of its dual, and found it … Continue reading
Posted in Mathematics
Tagged augment, augmentation, convex hull, cupola, dual, truncated octahedron
2 Comments
A Cluster of Nine Octahedra, and Related Polyhedra
If one starts with a central octahedron, then augments each of its eight triangular faces with identical octahedra, this is the result. It is then possible to augment each visible triangle of this cluster with yet more octahedra, which produces … Continue reading
Posted in Mathematics
Tagged augment, augmentation, cluster, convex hull, geometry, Mathematics, octahedra, octahedron, polyhedra, polyhedral, polyhedron, stellate, stellation
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An Alteration of the Icosahedron/Dodecahedron Compound
The dual of the icosahedron is the dodecahedron, and a compound can be made of those two solids. If one then takes the convex hull of this solid, the result is a rhombic triacontahedron. One can then made a compound … Continue reading
Posted in Mathematics
Tagged compound, convex hull, dodecahedron, dual, geometry, icosahedron, icosidodecahedron, Mathematics, polyhedra, polyhedron, rhombic triacontahedron
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