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Topic: History of Geodesy

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	Encyclopedia :: encyclopedia : Geodesy (Site not responding. Last check: 2007-10-01)
		Geodesy (jē-ǒ'-dǐ-sē), also called geodetics, is the scientific discipline that deals with the measurement and representation of the earth, its gravitational field and geodynamic phenomena (polar motion, earth tides, and crustal motion) in three-dimensional time varying space.
		Before the satellite geodesy era, the coordinate systems associated with geodetic datums attempted to be geocentric, but their origins differed from the geocentre by hundreds of metres, due to regional deviations in the direction of the plumbline (vertical).
		The Austrian Institute for Geodesy and Geophysics at the TU Vienna (astro-geological geoid, IGS and VLBI)
	www.hallencyclopedia.com /Geodesy (3237 words)

	Geodesy Article, Geodesy Information (Site not responding. Last check: 2007-10-01)
		Geodesy, also called geodetics, is the scientific discipline that deals with the measurementand representation of the earth, its gravitational field and geodynamic phenomena (polar motion, earth tides, and crustal motion) inthree-dimensional time varying space.
		Geodesy is primarily concerned with positioning and the gravity field and geometricalaspects of their temporal variations, although it can also include the study of the Earth's magnetic field.
		Before the satellite geodesy era, the co-ordinate systems associated with geodetic datums attempted to be be geocentric, buttheir origins differed from the geocentre by hundreds of metres, due to regional deviations in the direction of the plumbline(vertical).
	www.anoca.org /co/point/geodesy.html (2030 words)

	Learn more about Geodesy in the online encyclopedia. (Site not responding. Last check: 2007-10-01)
		Geodesy is the science of measuring the size and shape of the earth and its gravitational field.
		As Torge also remarks, the shape of the earth is to a large extent shaped by its gravity field.
		This applies to the solid surface (orogeny; few mountains are higher than 10 km, few deep sea trenches deeper than that) as it does to the liquid surface (dynamic sea surface topography) and the earth's atmosphere.
	www.onlineencyclopedia.org /g/ge/geodesy.html (221 words)

	Encyclopedia: Index
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		History of Germans in Russia and the Soviet Union
		History of Italy as a monarchy and in the World Wars
	encyclopedie-en.snyke.com /ndx/page_487.html (84 words)

	Historical Soc.
		National Museum of American History - Surveying and Geodesy Collection
		Society interested in astronomical instruments history and discovery, the history of optics
		An organization focusing on the preservation of surveying history primarily in northern California
	www.surveyhistory.org /historical_soc_.htm (161 words)

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