EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
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Dan Shechtman (b. 1941), Israeli chemist. Shechtman is best known for his work on quasicrystals, for which he was awarded the 2011 Nobel Prize in Chemistry. Quasicrystals are a type of solid structure where there is long-range order with five-fold symmetry, which results in a non-repeating pattern. The crystal patterns, first discovered in aluminium-manganese alloys in 1984, are generated according to rules related to the Fibonacci sequence and the golden ratio.
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