Ellipsoid Hill [SEP] continent
Ellipsoid Hill
Ellipsoid Hill () is a rounded, partly ice-covered summit, high, to the north of Blue Glacier, between Geoid Glacier and Spheroid Hill, in Victoria Land, Antarctica. The name is one of a group in the area associated with surveying applied in 1993 by the New Zealand Geographic Board, and is for ellipsoid, in geodesy a mathematical figure formed by revolving an ellipse about its minor axis.
to the uneven distribution of the Earth's mass. To make computations feasible, scientists defined ellipsoids of revolution; a given ellipsoid would be a good compromise for measurements in a given area, such as a country or continent. The difference between the direction of a plumb line or vertical, and a line perpendicular to the surface of the ellipsoid of revolution—a "normal" to said ellipsoid—at a particular observatory, is the deflection of the vertical.
When the Airy transit circle was built, a mercury basin