|7 colour Szilassi polyhedron [message #11042] Tue, 23 March 2010 07:29 UTC
Here's an interesting little mathematical curiosity called the Szilassi polyhedron. Topologically, it's a torus, but made from only 7 flat pieces.|
Each surface is a different colour and has 6 edges. Every face shares an edge with all 6 other faces, proving that a minimum of 7 colours are necessary when mapping on a torus.
The print is in full-colour sandstone and in spite of its tiny size and low price, has come out remarkably well.
You can find it in the microcubology shop here.
"a wise man's tools are analogies and puzzles"
RÃ¶yksopp - Remind Me