Some secret stirring in the world There is some secret stirring in the world, A thought that seeks impatiently its word. Thomas Lovell Beddoes, The Mind of the Maker euphonymaking
Truchet Tiles Truchet tiles are square tiles decorated with patterns that are not rotationally symmetric. When placed in a square tiling of the plane, they can form varied patterns, and the orientation of each tile can be used to visualize information associated with the tile's position within the tiling. Wikipedia en.wikipedia.org The Tiling Patterns of Sebastien Truchet and the Topology of Structural HierarchyWang tiles graphicsart