http://www.ted.com/talks/ron_eglash_on_african_fractals.html "'Ethno-mathematician' Ron Eglash is the author of African Fractals, a book that examines the fractal patterns underpinning architecture, art and design in many parts of Africa. By looking at aerial-view photos -- and then following up with detailed research on the ground -- Eglash discovered that many African villages are purposely la…