Nonperiodic tiling
From Bwtm
Penrose Tiles http://www.uwgb.edu/DutchS/symmetry/penrose.htm
Steven Dutch, Natural and Applied Sciences http://www.uwgb.edu/DutchS/symmetry/symmetry.htm
Penrose Tiles http://www.uwgb.edu/DutchS/symmetry/penrose.htm
Steven Dutch, Natural and Applied Sciences http://www.uwgb.edu/DutchS/symmetry/symmetry.htm