Circle of latitude can be calculated by a common sine or cosine function. The 60th parallel north or south is half as long as the Equator (disregarding Earth's minor flattening by 0.3%). A circle of latitude is perpendicular to all meridians. The latitude of the circle is approximately the angle between the Equator and the circle, with the angle's vertex at Earth's centre. The equator is at 0°, and the North Pole and South Pole are at 90° north and 90° south, respectively. The Equator is the longest circle of latitude and is the only circle of latitude which also is a great
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