Symmetry Space

A space for occasional comments on symmetry, tessellations, Platonic solids, Borromean rings, Islamic art and related topics.

Tuesday, July 27, 2010

Squares as sums of cubes

It was in " Gamma: Exploring Euler's Constant " by Julian Havel that I came across the fact, which I had not known previously,...

Wednesday, September 9, 2009

Symmetry sighting: Madrid tiles 1

In 1988, on the way home from my first visit to the Alhambra, I noticed some interesting tiles in a coffee shop in the Madrid airport. The ...

Sunday, August 23, 2009

The Torquato-Jiao conjecture

A recent issue of Nature (Aug. 13) includes a conjecture of fundamental importance in geometry. Torquato and Jiao conjecture that "the...

Saturday, June 27, 2009

Natural Quasicrystals!

A recent issue of Science announced the discovery of natural quasicrystals, solids whose atomic arrangements have symmetries that are forbid...

Saturday, September 6, 2008

The dual of buckeminsterfullerene and other thoughts about polyhedra

I've been thinking about polyhedra, and I have to thank those who wrote the Wikipedia article Polyhedron for giving me more to think ab...

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About Me

Steve: I'm a geneticist at the University of Maryland. I teach genetics. My research uses model organisms and bioinformatics to study signals for the splicing of precursors to messenger RNA. All recent posts are listed at ongen.us/SMM-Posts.

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