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math geek with no social life, spring-of-mathematics: geometrymatters: The...
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Fractal spiral forms in nature - Ammonites at the Smithsonian
Spiral, the tale of a chameleon! I suppose... :)
books n buildings
The Topkapi Scroll, a fifteenth century Timurid pattern book, is one of the few surviving documents to shed light on the conceptualization, theory, and practice of design in the premodern Islamic world.