Hexagon has no degrees of freedom but can seen as directed edges. Hexagons of symmetry g2, i4, and r12, as parallelogons can tessellate the Euclidean plane by translation. Other hexagon shapes can tile the plane with different orientations. The 6 roots of the simple Lie group , represented by a Dynkin diagram , are in a regular hexagonal pattern. The two simple roots have a 120° angle between them. The 12 roots of the Exceptional Lie group G2, represented by a Dynkin diagram are also in a hexagonal pattern. The two simple roots of two lengths have a 150° angle between
Not So Bad as We Seem, or, Many Sides to a Character: A Comedy in Five Acts Not So Bad as We Seem, or, Many Sides to a Character: A Comedy in Five Acts Not So Bad as We Seem, Or, Many Sides to a Character: A Comedy in Five Acts, was a play written by Sir Edward Bulwer-Lytton in 1851, and performed the same year as a charity event to benefit the Literary Guild, a society for struggling authors. The performance was especially notable for its cast, which included novelists Charles Dickens and Wilkie Collins, "Punch" editor Mark Lemon, artists Augustus Egg and John Tenniel, and writers Peter Cunningham and Douglas Jerrold. Dickens and Collins met