Monthly Archives: November 2013

Three and Eight

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Three and Eight

Tessellation Using Regular Nonagons and “Snowflake” Dodecagons

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The “snowflake” dodecagons are equilateral, and resemble star hexagons — but the resemblance is close, not exact.

Dodecahedral Cluster of Icosidodecahedra

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Dodecahedral Cluster of Icosidodecahedra

Created using Stella 4d, software you can try at http://www.software3d.com/stella.php.

Compound of Four Triangular Prisms

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Compound of Four Triangular Prisms

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

An Octahedron Partially Encasing a Rhombic Dodecahedron

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An Octahedron Partially Encasing a Rhombic Dodecahedron

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

Great Circles

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Great Circles

These great circles are all in the reflection planes of an icosidodecahedron, but that polyhedron, itself, is invisible here.

Software credit: see http://www.software3d.com/stella.4d

Triangles and Rings in Primary Colors

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Triangles and Rings in Primary Colors

Moonrise

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Moonrise

Sun at 11:00 am in July

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Sun at 11:00 am in July

Green Umbrella

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Green Umbrella