Lune Millennium Bridge Lune Millennium Bridge The Lune Millennium Bridge is a cable-stayed footbridge which spans the River Lune in Lancaster, England. It was designed by Whitby Bird and Partners, and built at a cost of £1.8m to commemorate the millennium of 2000. The bridge forms a "Y"-shape in plan to connect one bank both to a viaduct and adjacent quay. Its double pylon seeks to act as a reminder of the masted ships which previously used the quay. It features a main gangway of just over 30 metres and masts around 40 metres tall. The bridge is part of the National Cycle
Spherical lune two polar opposite points. Common examples of great circles are lines of longitude ("meridians") on a sphere, which meet at the north and south poles. A spherical lune has two planes of symmetry. It can be bisected into two lunes of half the angle, or it can be bisected by an equatorial line into two right spherical triangles. The surface area of a spherical lune is 2θ "R", where "R" is the radius of the sphere and θ is the dihedral angle in radians between the two half great circles. When this angle equals 2π radians (360°) — i.e., when