(geodesy)
71IUGG — Die Internationale Union für Geodäsie und Geophysik (IUGG) ist eine der großen wissenschaftlichen Dachverbände der Welt und gliedert sich in acht fachliche Assoziationen. Über 100 Staaten sind Mitglieder der Union oder ihrer Teile, ferner etwa 60 …
72geology — /jee ol euh jee/, n., pl. geologies. 1. the science that deals with the dynamics and physical history of the earth, the rocks of which it is composed, and the physical, chemical, and biological changes that the earth has undergone or is… …
73History of military technology — Part of a series on Science …
74Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals …
75Physical geography — For other uses, see Physiographic regions of the world. True color image of the Earth s surface and atmosphere. NASA Goddard Space Flight Center image. Physical geography (also known as geosystems or physiography) is one of the two major… …
76World Geodetic System — The World Geodetic System defines a reference frame for the earth, for use in geodesy and navigation. The latest revision is WGS 84 dating from 1984 (last revised in 2004), which will be valid up to about 2010.Earlier schemes included WGS 72, WGS …
77Friedrich Robert Helmert — (July 31 1843 ndash; June 15 1917) was a German geodesist and an important writer on the theory of errors.Helmert was born in Freiberg, Kingdom of Saxony. After schooling in Freiberg and Dresden, he entered the Polytechnische Schule, now… …
78Wilhelm Jordan — (March 1 1842 April 17 1899) was a German geodesist who did surveys in Germany and Africa and founded the German geodesy journal.Jordan was born in Ellwangen a small town in southern Germany. He studied at the polytechnic institute in Stuttgart… …
79Clairaut's theorem — For the interpretation of this theorem in terms of symmetry of second derivatives of a mapping , see Symmetry of second derivatives. Figure 1: An ellipsoid …
80Military funding of science — The military funding of science has had a powerful transformative effect on the practice and products of scientific research since the early 20th century. Particularly since World War I, advanced science based technologies have been viewed as… …
