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Arab Summit 2012

August 14, 2011

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Anonymous said…

noooo

August 14, 2011 at 8:20 PM

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Quasicrystals in Medieval Islamic Art

Some 500 years before the first quasicrystalline shapes were described by mathematician Roger Penrose, Islamic artists developed tiles that can be combined into the world's first man-made quasicrystals. Penrose described the mathematical formulae for quasicrystals for the first time in 1974. Also called the "Penrose tiles", quasicrystals are geometrical patterns that have the wonderful property that if you extend them to infinity in any direction, they will never repeat themselves! Since this form of math was described, many quasicrystals where discovered in nature such as the arrangement of atoms and molecules in certain solids and liquids, that accounts for their unusual resistive and elastic properties. Here is a typical example of a Penrose tiling pattern: Today, quasicrystals are established math. The development of such math helped us better understand many natural phenomena, as well as develop better technology whether relating to materials, alloys, or electronics....

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