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/
Our friend the troll is trying to make fun of us. Next week we’ll see the joke of his cousin, the 2-troll.
Thanks to Larry for sharing this.
A 3-D projection of the 600-cell. Can you tell how it was done? Where are all the 600 cells?
This week’s image and description is by Jochen Voss: please visit his website http://seehuhn.de
“Each of the lines is a path of a stochastic process. They are all
generated by the same rule, but because of the randomness each path
comes out differently in the end and I drew all of them into the
same picture.
The plane is divided into square cells, and the process is constructed
so that it normally just runs in circles inside one cell but, because
of random fluctuations, from time to time is pushed into a
neighbouring cell. (In technical terms: the picture shows solutions
of a stochastic differential equation.)”
Now the real Picture of the week 🙂 by kind permission of Josh Levenberg, author and copyright holder. Please visit his site at http://www.technomagi.com/josh/images/index.html
It was remarked to me that this mathblog is too serious (perhaps it has to do with math being too serious to be left to physicists?) So, off to the start of our new column, Picture of the Week.
"An effective method of dealing with defects is to find a collection site."
Winner of “Bizarre” category of Micrograph 2005
Title: Chisai Benjo (Small Toilet)
Description: An effective method of dealing with defects is to find a collection site.
Magnification: ~15,000X
Instrument: SII NanoTechnology Inc. / SMI2050MS2
Submitted by: Takahashi Kaito (SII Nanotechnology Inc.)
http://www.zyvexlabs.com/EIPBNuG/2005MicroGraph.html#Bizarre
madematics 