Word Origin and History for nexus Expand. n. 1660s, bond, link, means of communication, from Latin nexus that which ties or binds together, past participle of nectere to bind, from PIE root *ned- to bind, tie (see net (n.)).
Latitude is an angle (defined below) which ranges from 0Â° at the Equator to 90Â° (North or South) at the poles. Lines of constant latitude, or parallels, run east-west as circles parallel to the equator. Latitude is used together with longitude to specify the precise location of features on the surface of the Earth.he reduced or parametric latitude, Î², is defined by the radius drawn from the centre of the ellipsoid to that point Q on the surrounding sphere (of radius a) which is the projection parallel to the Earth's axis of a point P on the ellipsoid at latitude.
Latitude measures distance north or south of the Equator (the band of 0 degrees latitude that runs east and west around the middle of the Earth). Each latitude line forms an imaginary circle around the Earth. Because these circles are parallel to the Equator, they are sometimes called parallels. The farther the circles are from the Equator, the smaller they are, until they become points at the North and South Poles. The latitude of the North Pole is 90 degrees north, and that of the South Pole is 90 degrees south.