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
Lune of Hippocrates circle. He proved that the lune bounded by the arcs labeled "E" and "F" in the figure has the same area as triangle "ABO". This afforded some hope of solving the circle-squaring problem, since the lune is bounded only by arcs of circles. Heath concludes that, in proving his result, Hippocrates was also the first to prove that the area of a circle is proportional to the square of its diameter. Hippocrates' book on geometry in which this result appears, "Elements", has been lost, but may have formed the model for Euclid's "Elements". Hippocrates' proof was preserved through the "History