RobertLovesPi.net

Polyhedra, tessellations, and more.

About RobertLovesPi

I go by RobertLovesPi on-line, and am interested in many things, a large portion of which are geometrical. Welcome to my own little slice of the Internet. The viewpoints and opinions expressed on this website are my own. They should not be confused with those of my employer, nor any other organization, nor institution, of any kind.

Tessellation Featuring Golden Rectangles

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Tessellation Featuring Golden Rectangles

Nonagonal Mandala

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Nonagonal Mandala III

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Nonagonal Mandala III

Rotating Polyhedral Helix

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Rotating Polyhedral Helix

It’s made of metabidiminished rhombicosidodecahedra, and can be continued indefinitely.

Software credit, for the program used to create this .gif: see http://www.software3d.com/Stella.php for download and trial demo.

A Second Repeating Tessellation of Regular Polygons Which Lacks Vertex-Transitivity

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Quasi-Regular Tessellation II

A Repeating Tessellation of Regular Polygons Which Lacks Vertex-Transitivity

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Quasi-Regular Tessellation

An Unusual Tessellation Featuring Regular Hexagons, Equilateral Triangles, and Squares

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An Unusual Tessellation

This tessellation uses equilateral triangles and regular hexagons with unit edge length, and squares with twice that edge length.

The Pegasus Crude Oil Pipeline

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The Pegasus Crude Oil Pipeline

I live quite near Mayflower, Arkansas, site of an oil spill and ongoing cleanup efforts. You’ve probably seen it in the news.

Living in a landlocked state, we did not have “oil spill” on our worry-lists here.

You may live near this pipeline, too, and not even know it. That’s why I’m posting this map (which I did not create, but simply found with a Google image-search). There may be other such pipelines here, as well. Few people notice them — until one breaks.

Richard Feynman, on Respect and Authority

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Richard Feynman, On Respect and Authority

Mark Twain, on Idiots and Lightning

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Mark Twain On Idiots and Lightning

[Later edit, in October 2015: a friend of mine questions the authenticity of this quote, but did find a source for Mark Twain saying this: “The trouble ain’t that there is too many fools, but that the lightning ain’t distributed right.” He may well be correct; my friend is an expert at detecting false quotations. If anyone knows of a source for the quote in the pic above, please leave a note about it in a comment to this post.]