true difference of latitude

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• Latitude — This article is about the geographical reference system. For other uses, see Latitude (disambiguation). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are actually halves of great… …   Wikipedia

• reduction in latitude — The difference between the geocentric and the geographic latitudes of a place. The geocentric latitude is the smaller angle made by a line joining the place and the center of the earth with the plane of the equator, whereas the geographic… …   Aviation dictionary

• Geographic latitude — Geographic Ge o*graph ic, Geographical Ge o*graph ic*al, a. [L. geographicus, Gr. ?: cf. F. g[ e]ographique.] Of or pertaining to geography. [1913 Webster] {Geographical distribution}. See under {Distribution}. {Geographic latitude} (of a place) …   The Collaborative International Dictionary of English

• Sundial — A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style (a thin rod or a sharp, straight edge) onto a flat surface marked with lines indicating… …   Wikipedia

• Earth radius — The Earth s shape, like that of all major planets, approximates a sphere. A true sphere has a unique radius, but on Earth the distance from the mean sea level at each point on the surface to the center (the radius of the Earth at a point on the… …   Wikipedia

• United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …   Universalium

• Nevil Maskelyne — For other people named Nevil Maskelyne, see Nevil Maskelyne (disambiguation). Rev. Dr Nevil Maskelyne Born 6 October 1732 …   Wikipedia

• Philosophiæ Naturalis Principia Mathematica —   Title page of Principia , first edition (1687) Original title …   Wikipedia

• History of geodesy — See also the main article on Geodesy. Humanity has always been interested in the Earth. During very early times this interest was limited, naturally, to the immediate vicinity of home and residency, and the fact that we live on a near spherical… …   Wikipedia

• Meridian altitude — is an astronomical navigation method of calculating an observer s latitude. Contents 1 Principle 2 Methodology 3 See also 4 References …   Wikipedia

• Anaximander — otheruses4|the Pre Socratic philosopherInfobox Philosopher region = Western Philosophy era = Pre Socratic philosophy color = #B0C4DE image caption = Detail of Raphael s painting The School of Athens , 1510–1511. This could be a representation of… …   Wikipedia