In the eyes of poets, it is a magnificent poem; in the minds of scholars, it is a cultural repository; in the hearts of tourists, it is a natural wonder; in the belief of pilgrims, it is a sacred moun ...
discovered this pattern on a 14th century madrassa.在一所14世纪的伊斯兰学校中 现了这个图案。 And after some analysis, concluded that this was, in fact, Penrose tiling 500 years before ...