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 Spherical lune In spherical geometry, a spherical lune is an area on a sphere bounded by two half great circles which meet at antipodal points, and is an example of a digon, {2}, with dihedral angle θ. The word "lune" derives from "luna", the Latin word for Moon. A spherical wedge is the volume of space bounded by two planes passing through a sphere center and the surface of the sphere. Great circles are the largest possible circles (circumferences) of a sphere; each one divides the surface of the sphere into two equal halves. Two great circles always intersect at