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Sumner position line

См. также в других словарях:

  • line of position — 1. : line of site 2. : a locus of all possible positions of a ship for the conditions given see sumner line 3. : a line along which an aircraft is known (as by ground reference or celestial fix) to be flying and which when crossed with another… …   Useful english dictionary

  • sumner line — ˈsəmnə(r) noun Usage: usually capitalized S Etymology: after Thomas H. Sumner, 19th century American sea captain : a line of position determined by Sumner s method …   Useful english dictionary

  • sumner's method — noun Usage: usually capitalized S Etymology: after T. H. Sumner : a method of determining one s position on the earth in which two approximate latitudes or longitudes are assumed (as from the dead reckoning), the corresponding longitudes or… …   Useful english dictionary

  • Thomas Hubbard Sumner — (20 March 1807 ndash; 9 March 1876) was a sea captain during the 19th century. He is best known for developing the celestial navigation method known as the Sumner Line or line of position.Born in Boston, Massachusetts, Sumner entered Harvard at… …   Wikipedia

  • Thomas Sumner — Thomas Hubbard Sumner (* 20. März 1807 in Boston, Massachusetts; † 9. März 1876 in Taunton, Massachusetts) war Kapitän im 19. Jahrhundert. Die Astronavigation verdankt ihm eine wichtige Weiterentwicklung, die als astronomische Standlinie oder als …   Deutsch Wikipedia

  • Henry James Sumner Maine — Sir Henry James Sumner Maine, KCSI (August 15, 1822 February 3, 1888), was an English comparative jurist and historian, son of Dr James Maine, of Kelso, Borders, in Scotland. He is famous for the thesis outlined in Ancient Law that law and… …   Wikipedia

  • circle of position — navigation : a circle on the earth whose center is the point directly under a celestial body and whose radius is the zenith distance of the celestial body, the observer s location being somewhere on this circle compare sumner line * * * circle of …   Useful english dictionary

  • Celestial navigation — Celestial navigation, also known as astronavigation, is a position fixing technique that was devised to help sailors cross the featureless oceans without having to rely on dead reckoning to enable them to strike land. Celestial navigation uses… …   Wikipedia

  • Battle of Fredericksburg — Part of the American Civil War Battle of Fredericksburg …   Wikipedia

  • Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… …   Universalium

  • Christchurch tramway system — A Christchurch Tramway tram, Worcester Street (March 2005) Operation Loca …   Wikipedia

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