Latitude exact relationship of parallels and meridians with horizontal and vertical: both are complicated curves. On the sphere the normal passes through the centre and the latitude () is therefore equal to the angle subtended at the centre by the meridian arc from the equator to the point concerned. If the meridian distance is denoted by then where denotes the mean radius of the Earth. is equal to . No higher accuracy is appropriate for since higher-precision results necessitate an ellipsoid model. With this value for the meridian length of 1 degree of latitude on the sphere is (60.0 nautical miles).
Friends of the Earth (EWNI) a line-up of several headline acts from the main stage including Stornoway, Cloud Control, Giant Giant Sand, 1000 Mile Highway, and To Kill A King. The Busking Stage ran from 2012-2014 and was hugely successful. Friends of the Earth (EWNI) Friends of the Earth (EWNI) (England, Wales and Northern Ireland) is one of 70 national groups around the world which make up the Friends of the Earth network of environmental organisations. It is usually referred to just as Friends of the Earth within its home countries. Friends of the Earth Scotland operates separately, so there is no single Friends of