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
B-Sides and Rarities (Beach House album) B-Sides and Rarities (Beach House album) B-Sides and Rarities is a compilation album by American dream pop band Beach House, released on June 30, 2017 through Sub Pop, Bella Union and Mistletone. The compilation contains B-sides and rare, unreleased cuts along with two new songs, "Chariot" and "Baseball Diamond". It also includes the band's cover of Queen's "Play the Game". The idea for a B-sides record came when the band realized how many non-album songs had been made over the years, and how hard it was to find and hear many of them. This compilation contains every song the band