File:Darb-i Imam shrine spandrel.JPG

Summary

DescriptionDarb-i Imam shrine spandrel.JPG	English: Girih-tile subdivision found in the decagonal girih pattern on a spandrel from the Darb-i Imam shrine, Isfahan, Iran (1453 C.E.). A subdivision rule to construct perfect quasi-crystalline tilings has been identified [1] The thick black lines demarcating girih tiles of decagon and bowtie shapes are subdivided into a smaller pattern, which can also be perfectly generated by a tessellation of girih tiles. فارسی: گره‌چینی در درب امام اصفهان
Date	5 February 2012
Source	http://www.sciencemag.org/content/315/5815/1106.full (Fig.3A)
Author	Unknown artisan, 15th century

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File:Darb-i Imam shrine spandrel.JPG

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5 February 2012

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