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 Walt Police (SWAPOL) before Namibian independence, he stated that his short stint in Oshakati in the north of Namibia was merely to serve in the auxiliary service as mechanic. From 1990 he worked for Old Mutual in Windhoek. In 1999 he started "Van der Walt Motors", a service station with surrounding shops near Windhoek's city centre. A White Afrikaner Namibian, van der Walt began associating with SWAPO in a business capacity following independence in 1990. He was placed on the parliamentary list for SWAPO at number 42 prior to the 2009 National Assembly election and subsequently elected. He was associated with