A Rhombicosidodecahedron-Variant Which Features Octagons

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A Rhombicidodecahedron-Variant Which Features Octagons

This polyhedron contains the twenty triangles and twelve pentagons of a rhombicosidodecahedron — but they are all smaller than those found in that solid. As a result, the thirty squares of the rhombicosidodecahedron have each become, instead, irregular octagons.

To try the software I use to generate these images, simply visit http://www.software3d.com/stella.php — where a free trial download is available.

The Dual of a Rhombicosidodecahedral Cluster of Rhombic Triacontahedra

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The Dual of a Rhombicosidodecahedral Cluster of Rhombic Triacontahedra

Once I completed the polyhedral cluster seen in the last post, I became curious about its dual, which is what you see here. The overall shape here resembles an icosidodecahedron — the Archimedean solid which is, itself, the dual of the rhombic triacontahedron.

To try the software I use to generate these images, simply visit http://www.software3d.com/stella.php — where a free trial download is available.

Rhombicosidodecahedral Cluster of Rhombic Triacontahedra

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Rhombicosidodecahedral Cluster of Rhombic Triacontahedra

Since rhombic triacontahedra can form pentagonal rings, triangular rings, and square rings, I wanted to find out if a rhombicosidodecahedron could be built out of these building blocks. As you can see here, the attempt was a success. Each rhombic triacontahedron which appears here is located at the vertex of a rhombicosidodecahedron.

Software credit: see http://www.software3d.com/stella.php.

A Conjecture About Dark Matter and Dark Energy

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A Conjecture About Dark Matter and Dark Energy

If inflation moves point A so far from point B right after the Big Bang that you can’t get to A from B now, then could the matter and energy in all the parts of the universe that we can’t access (because they’re too far away) provide the missing 90+% of the universe that we can’t account for?

Triangles and Circles

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Triangles and Circles

A Polyhedron with 122 Faces

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A Polyhedron with 122 Faces

The 122 faces are twenty blue, irregular hexagons; thirty red, irregular hexagons; 60 rectangles, and twelve regular pentagons.

Software credit: just visit http://www.software3d.com.Stella.php, and look for the free trial download of Stella 4d, the program I used to make this rotating image.

A Polyhedron Featuring Kites and Regular Dodecagons

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A Polyhedron Featuring Kites and Regular Dodecagons

The dodecagons are in the same planes as a cube’s faces, so there are six of them. Also, this could be constructed via an unusual truncation of the cube, using three different truncation-planes at each vertex. This polyhedron has thirty faces: the six dodecagons, and twenty-four kites (in eight sets of three).

Software credit: see http://www.software3d.com/stella.php for a free trial download of Stella 4d, the software I used to construct this polyhedron.

An Octahedron, Augmented By Octahedra, and Then Reaugmented with Yet More Octahedra

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An Octahedron, Augmented By Octahedra, and Then Reaugmented with Yet More Octahedra

Software credit: see http://www.software3d.com/stella.php for a free trial download of Stella 4d, the software I used to construct this cluster, three deep, of octahedra.

The Pseudo-Truncated-Icosahedron

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An Icosahedron, Augmented, and Then Reaugmented, with Octahedra

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An Icosahedron, Augmented, and Then Reaugmented, with Octahedra

Software credit: you can try the software I used to make this at http://www.software3d.com/stella.php.