Many thanks to Chaim Goodman-Strauss for kind permission to use the image: click through to mathbun.com one of his blogs. 532 symmetry on a sphere. Look at the blue dots for a hint about orbifold conventional names, or best of all, see our previous post https://madematics.wordpress.com/2011/09/11/the-symmetries-of-things/
The nearly-true story of Schorsch, on a collision route with the beautiful blue planet:
Thanks to Sascha Geddert and Wolfram Kampffmeyer.
A 300-page graphic-novel on the extraordinary life and work of Bertrand Russell. Suited for adults, preferably with some background on the foundations of logic and math.
From Open University, a 30 min 1996 TV film. A young woman, despite the “No Vacancy” sign, asks the front desk for a room. She, and the audience, will enjoy a few paradoxes in transfinite cardinal numbers, and will meet Tristam Shandy, Aristoteles, and a few other interesting characters.
This week we build some self-intersecting Boy surfaces:
http://teach.hilderbuild.com/tiki-index.php?page=Paper%20Boy%27s
http://www.southernct.edu/~fields/topology/Boys_surface.html
Polyhedral versions:
http://plus.maths.org/content/os/issue27/features/mathart/index
http://www.savoir-sans-frontieres.com/JPP/telechargeables/English/Topo_the_world_eng.pdf page 48 (the Topologicon is available in many languages besides English)
http://www.southernct.edu/~fields/topology/Boys_surface.html
Our website of the week, too, is a programming challenge. This is about an ant colony. You can compete with friends all over the world, and pick your favourite programming language!
Awesome game which involves programming a robot with simple actions and limited memory. Available for iPhone / iPod touch and for iPad; both versions have a
Please see my children’s website
http://www.laquartadimensione.com
Not only you’ll enjoy the colorful fruit salad, but the wordless 4D book has now been rearranged into a PDF. We hope you enjoy it.
A puzzle just for your eyes and brain. No paper-cutting. Not until you solve the puzzle, at least 🙂
What shape do we get if we close he hinges clockwise? What if we close them anti-clockwise?
“In contemporary society, the role of imaging and visual communication is universally acknowledged. However, there are still many opportunities which have not been adequately taken advantage of, or where the visual artwork, rather than bringing out the communication messages and contents, mocks them with a shower of special effects.”
madematics 