A Pinwheel of Rhombi #2

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rhombic pinwheel

A Pinwheel of Rhombi

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pinwheel of rhombi

Two Times Seven Is Fourteen

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twice7is14

Twice Nine Is Eighteen

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A Four-Color Flag

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a four-color flag

There. Now, if I ever start an independent country, I’ll at least have a new flag ready.

A Black-on-Black Polyhedron: The Final Stellation of the Icosahedron

Icosa

I made this using Stella 4d: Polyhedron Navigator, which you may try for free right here.

Spectral Circles on a Cuboctahedron

Cubocta

I used three programs to make this: Geometer’s Sketchpad, MS-Paint, and Stella 4d. The third of these may be tried for free at http://www.software3d.com/Stella.php.

Spectral Circles on a Truncated Icosahedron

Trunc Icosa

I used MS-Paint and Geometer’s Sketchpad to make the designs on the faces, and then used Stella 4d (here) to put the whole thing together.

Spectral Circles

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circles

Heptagrammic

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