The lightnings trembled And in thy Silence was his Sentence, And in his Soul a vain repentance, And evil dread so ill dissembled, That in his hand the lightnings trembled. Lord Byron, Prometheus idefiancesilence
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