![20091208mobdoughnut4.jpg](http://newyork.seriouseats.com/images/20091208mobdoughnut4.jpg)
Then I saw a picture on Wired Science and thought that somebody had knitted a mathematical equation in 3-D.
![](http://www.wired.com/images_blogs/wiredscience/2009/12/mandelbulb_1a.jpg)
It turned out that it was a Mandelbulb, a 3-D visualisation of a fractal called a Mandelbrot set. After seeing some videos like the next one, I still think that this is just like a cool knitting work...
Here is an example from a Finnish knitting blog nekkisneuleet. Using different patterns, someone could really knit a visualisation. Too bad I am not good in designing...
![http://www.nekkis.org/pitsitoppi.jpg](http://www.nekkis.org/pitsitoppi.jpg)
Finally Makezine led me to some really impressive polyhedra made of playing cards, again by George Hart