The brain within its groove The brain within its groove Runs evenly and true; But let a splinter swerve, T'were easier for you To put the water back When floods have slit the hills, And scooped a turnpike for themselves, And blotted out the mills! Emily Dickinson, The Collected Poems of Emily Dickinson insanitymind
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