Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Semaphore_line> ?p ?o }
- Semaphore_line abstract "A semaphore telegraph, optical telegraph, shutter telegraph chain, Chappe telegraph, or Napoleonic semaphore is a system of conveying information by means of visual signals, using towers with pivoting shutters, also known as blades or paddles. Information is encoded by the position of the mechanical elements; it is read when the shutter is in a fixed position.The system was invented in 1792 in France by Claude Chappe, and was popular in the late eighteenth to early nineteenth century.They were much faster than post riders for bringing a message over long distances, and also cheaper in their long-term operating costs, once constructed. Semaphore lines were a precursor of the electrical telegraph which would replace them half a century later. The electrical telegraph would in turn be cheaper, faster, and more private. The distance that an optical telegraph can bridge is limited by geography and weather; thus, in practical use, most optical telegraphs used lines of relay stations to bridge longer distances. This also prevented the optical telegraph from crossing long expanses of water, unless a convenient island could be used for a relay station.Modern derivatives of the semaphore system include flag semaphore (a flag relay system) and the heliograph (optical telegraphy using mirror-directed sunlight reflections).".
- Semaphore_line thumbnail OptischerTelegraf.jpg?width=300.
- Semaphore_line wikiPageExternalLink chappe.html.
- Semaphore_line wikiPageExternalLink duesicilie.html.
- Semaphore_line wikiPageExternalLink telegraph_p1.html.
- Semaphore_line wikiPageExternalLink telegraph_p2.html.
- Semaphore_line wikiPageExternalLink telegraph.shtml.
- Semaphore_line wikiPageExternalLink SHUTTER_CHART.jpg.
- Semaphore_line wikiPageID "163251".
- Semaphore_line wikiPageLength "30254".
- Semaphore_line wikiPageOutDegree "182".
- Semaphore_line wikiPageRevisionID "695824062".
- Semaphore_line wikiPageWikiLink Abraham_Niclas_Edelcrantz.
- Semaphore_line wikiPageWikiLink Admiralty.
- Semaphore_line wikiPageWikiLink Admiralty_House,_London.
- Semaphore_line wikiPageWikiLink Agustín_de_Betancourt.
- Semaphore_line wikiPageWikiLink Alastair_Reynolds.
- Semaphore_line wikiPageWikiLink Alexandre_Dumas.
- Semaphore_line wikiPageWikiLink Alternate_history.
- Semaphore_line wikiPageWikiLink Andy_Lane.
- Semaphore_line wikiPageWikiLink Annapolis_Royal.
- Semaphore_line wikiPageWikiLink Arthur_Wellesley,_1st_Duke_of_Wellington.
- Semaphore_line wikiPageWikiLink Austria.
- Semaphore_line wikiPageWikiLink Battle_of_Vienna.
- Semaphore_line wikiPageWikiLink Bay_of_Fundy.
- Semaphore_line wikiPageWikiLink Berlin.
- Semaphore_line wikiPageWikiLink Boston.
- Semaphore_line wikiPageWikiLink C._S._Forester.
- Semaphore_line wikiPageWikiLink California.
- Semaphore_line wikiPageWikiLink Camp_Down,_Portsdown_Hill.
- Semaphore_line wikiPageWikiLink Canada.
- Semaphore_line wikiPageWikiLink Category:History_of_telecommunications.
- Semaphore_line wikiPageWikiLink Category:Latin-alphabet_representations.
- Semaphore_line wikiPageWikiLink Category:Napoleonic_beacons_in_England.
- Semaphore_line wikiPageWikiLink Category:Optical_communications.
- Semaphore_line wikiPageWikiLink Category:Telegraphy.
- Semaphore_line wikiPageWikiLink Chatley_Heath.
- Semaphore_line wikiPageWikiLink Chouannerie.
- Semaphore_line wikiPageWikiLink Claude_Chappe.
- Semaphore_line wikiPageWikiLink Claygate.
- Semaphore_line wikiPageWikiLink Clermont-en-Argonne.
- Semaphore_line wikiPageWikiLink Code.
- Semaphore_line wikiPageWikiLink Codebook.
- Semaphore_line wikiPageWikiLink Commodity.
- Semaphore_line wikiPageWikiLink Compton_Down,_Compton.
- Semaphore_line wikiPageWikiLink Condxc3xa9-sur-lEscaut.
- Semaphore_line wikiPageWikiLink Coombe,_Kingston_upon_Thames.
- Semaphore_line wikiPageWikiLink Dark_Ages_(historiography).
- Semaphore_line wikiPageWikiLink David_Weber.
- Semaphore_line wikiPageWikiLink Deal,_Kent.
- Semaphore_line wikiPageWikiLink Discworld.
- Semaphore_line wikiPageWikiLink Drottningholm.
- Semaphore_line wikiPageWikiLink Dudley_Pope.
- Semaphore_line wikiPageWikiLink Electrical_telegraph.
- Semaphore_line wikiPageWikiLink File:Stalbanshighstreet1807_cropped640.jpg.
- Semaphore_line wikiPageWikiLink Flag_semaphore.
- Semaphore_line wikiPageWikiLink France.
- Semaphore_line wikiPageWikiLink Fredericton.
- Semaphore_line wikiPageWikiLink French_Revolution.
- Semaphore_line wikiPageWikiLink Funen.
- Semaphore_line wikiPageWikiLink Geography.
- Semaphore_line wikiPageWikiLink Gothenburg.
- Semaphore_line wikiPageWikiLink Great_Belt.
- Semaphore_line wikiPageWikiLink Great_Britain.
- Semaphore_line wikiPageWikiLink Great_Yarmouth.
- Semaphore_line wikiPageWikiLink Greek_language.
- Semaphore_line wikiPageWikiLink HMNB_Portsmouth.
- Semaphore_line wikiPageWikiLink Halifax,_Nova_Scotia.
- Semaphore_line wikiPageWikiLink Harting.
- Semaphore_line wikiPageWikiLink Haslemere.
- Semaphore_line wikiPageWikiLink Haste_Hill.
- Semaphore_line wikiPageWikiLink Hector_Malot.
- Semaphore_line wikiPageWikiLink Heliograph.
- Semaphore_line wikiPageWikiLink History_of_telecommunication.
- Semaphore_line wikiPageWikiLink History_of_the_Royal_Navy.
- Semaphore_line wikiPageWikiLink Holyhead.
- Semaphore_line wikiPageWikiLink Home_Riggs_Popham.
- Semaphore_line wikiPageWikiLink Hornblower_(TV_series).
- Semaphore_line wikiPageWikiLink Hornblower_and_the_Hotspur.
- Semaphore_line wikiPageWikiLink Horse_racing.
- Semaphore_line wikiPageWikiLink Hydraulic_telegraph.
- Semaphore_line wikiPageWikiLink Internet.
- Semaphore_line wikiPageWikiLink Ireland.
- Semaphore_line wikiPageWikiLink Jonathan_Grout.
- Semaphore_line wikiPageWikiLink Karlskrona.
- Semaphore_line wikiPageWikiLink Keith_Roberts.
- Semaphore_line wikiPageWikiLink Kingdom_of_Prussia.
- Semaphore_line wikiPageWikiLink Koblenz.
- Semaphore_line wikiPageWikiLink Korsør.
- Semaphore_line wikiPageWikiLink L._Sprague_de_Camp.
- Semaphore_line wikiPageWikiLink Lest_Darkness_Fall.
- Semaphore_line wikiPageWikiLink Lille.
- Semaphore_line wikiPageWikiLink Liverpool.
- Semaphore_line wikiPageWikiLink London.
- Semaphore_line wikiPageWikiLink Lord_George_Murray_(bishop).
- Semaphore_line wikiPageWikiLink Lord_Ramage.
- Semaphore_line wikiPageWikiLink Lucien_Leuwen.
- Semaphore_line wikiPageWikiLink Lumps_Fort.
- Semaphore_line wikiPageWikiLink Lyon.
- Semaphore_line wikiPageWikiLink Marseille.