Mathematics and art while the De Stijl movement led by Theo van Doesburg and Piet Mondrian explicitly embraced geometrical forms. Mathematics has inspired textile arts such as quilting, knitting, cross-stitch, crochet, embroidery, weaving, Turkish and other carpet-making, as well as kilim. In Islamic art, symmetries are evident in forms as varied as Persian girih and Moroccan zellige tilework, Mughal jali pierced stone screens, and widespread muqarnas vaulting. Mathematics has directly influenced art with conceptual tools such as linear perspective, the analysis of symmetry, and mathematical objects such as polyhedra and the Möbius strip. Magnus Wenninger creates colourful stellated polyhedra, originally as models for
Piet van der Sanden camp near Hannover in Germany. Shortly after the war ended he joined the British intelligence service. Between 1945 and 1947 he worked as a translator for British occupying forces in Germany. While there Van der Sanden met his future wife. Between 1947 and 1960 he worked as a journalist first for the "De Nieuwe Zuidhollander" and later for "Het Binnenhof". Starting in 1960 he worked as a parliamentary journalist for "Unitas- en Persuniecombinatie". His work in this position lasted until 1966. Van der Sanden became politically involved in 1966 when he became parliamentary advisor and secretary to the Catholic People's