Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Bureau_des_Longitudes> ?p ?o }
- Bureau_des_Longitudes abstract "The Bureau des Longitudes is a French scientific institution, founded by decree of 25 June 1795 and charged with the improvement of nautical navigation, standardisation of time-keeping, geodesy and astronomical observation. During the 19th century, it was responsible for synchronizing clocks across the world. It was headed during this time by François Arago and Henri Poincaré. The Bureau now functions as an academy and still meets monthly to discuss topics related to astronomy.The Bureau was founded by the National Convention after it heard a report drawn up jointly by the Committee of Navy, the Committee of Finances and the Committee of State education. Henri Grégoire had brought to the attention of the National Convention France's failing maritime power and the naval mastery of England, proposing that improvements in navigation would lay the foundations for a renaissance in naval strength. As a result, the Bureau was established with authority over the Paris Observatory and all other astronomical establishments throughout France. The Bureau was charged with taking control of the seas away from the English and improving accuracy when tracking the longitudes of ships through astronomical observations and reliable clocks.The ten original members of its founding board were:Geometers:Joseph-Louis Lagrange;Pierre-Simon Laplace;Astronomers:Joseph Jérôme Lefrançais de Lalande;Pierre Méchain;Jean Baptiste Joseph Delambre;Dominique, comte de Cassini;Jean-Charles de Borda, who carried out work related to the mechanics of fluids and precursor of Carnot because of his insights on thermodynamics;Jean-Nicolas Buache, geographer;Louis Antoine de Bougainville, celebrated navigator; andNoël Simon Caroché, manufacturer of telescopes.By a decree of 30 January 1854, the Bureau's mission was extended to embrace geodesy, time standardisation and astronomical measurements. This decree granted independence to the Paris Observatory, separating it from the Bureau, and focused the efforts of the Bureau on time and astronomy. The Bureau was successful at setting a universal time in Paris via air pulses sent through pneumatic tubes. It later worked to synchronize time across the French colonial empire by determining the length of time for a signal to make a round trip to and from a French colony.The French Bureau of Longitude established a commission in the year 1897 to extend the metric system to the measurement of time. They planned to abolish the antiquated division of the day into hours, minutes, and seconds, and replace it by a division into tenths, thousandths, and hundred thousandths of a day. This was a revival of a dream that was in the minds of the creators of the metric system at the time of the French Revolution a hundred years earlier. Some members of the Bureau of Longitude commission introduced a compromise proposal, retaining the old-fashioned hour as the basic unit of time and dividing it into hundredths and ten thousandths. Poincaré served as secretary of the commission and took its work very seriously, writing several of its reports. He was a fervent believer in a universal metric system. But he lost the battle. The rest of the world outside France gave no support to the commission's proposals, and the French government was not prepared to go it alone. After three years of hard work, the commission was dissolved in 1900.Since 1970, the board has been constituted with 13 members, 3 nominated by the Académie des Sciences. Since 1998, practical work has been carried out by the Institut de mécanique céleste et de calcul des éphémérides.".
- Bureau_des_Longitudes wikiPageExternalLink longitude.htm.
- Bureau_des_Longitudes wikiPageExternalLink www.bureau-des-longitudes.fr.
- Bureau_des_Longitudes wikiPageExternalLink www.imcce.fr.
- Bureau_des_Longitudes wikiPageExternalLink article-preview?article_id=16739.
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- Bureau_des_Longitudes wikiPageRevisionID "662588363".
- Bureau_des_Longitudes wikiPageWikiLink Academy.
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- Bureau_des_Longitudes wikiPageWikiLink Astronomer.
- Bureau_des_Longitudes wikiPageWikiLink Astronomers.
- Bureau_des_Longitudes wikiPageWikiLink Astronomy.
- Bureau_des_Longitudes wikiPageWikiLink Calendar.
- Bureau_des_Longitudes wikiPageWikiLink Category:1795_establishments_in_France.
- Bureau_des_Longitudes wikiPageWikiLink Category:Astronomy_in_France.
- Bureau_des_Longitudes wikiPageWikiLink Category:Astronomy_organizations.
- Bureau_des_Longitudes wikiPageWikiLink Category:Geography_organizations.
- Bureau_des_Longitudes wikiPageWikiLink Category:Scientific_organizations_established_in_1795.
- Bureau_des_Longitudes wikiPageWikiLink Clock.
- Bureau_des_Longitudes wikiPageWikiLink Clock_signal.
- Bureau_des_Longitudes wikiPageWikiLink Clocks.
- Bureau_des_Longitudes wikiPageWikiLink Colony.
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- Bureau_des_Longitudes wikiPageWikiLink Dominique,_comte_de_Cassini.
- Bureau_des_Longitudes wikiPageWikiLink Dream.
- Bureau_des_Longitudes wikiPageWikiLink England.
- Bureau_des_Longitudes wikiPageWikiLink Ephemerides.
- Bureau_des_Longitudes wikiPageWikiLink Ephemeris.
- Bureau_des_Longitudes wikiPageWikiLink Fluid.
- Bureau_des_Longitudes wikiPageWikiLink France.
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- Bureau_des_Longitudes wikiPageWikiLink Geographer.
- Bureau_des_Longitudes wikiPageWikiLink Henri_Grégoire.
- Bureau_des_Longitudes wikiPageWikiLink Henri_Poincaré.
- Bureau_des_Longitudes wikiPageWikiLink Hour.
- Bureau_des_Longitudes wikiPageWikiLink Institut_de_mécanique_céleste_et_de_calcul_des_éphémérides.
- Bureau_des_Longitudes wikiPageWikiLink International_System_of_Units.
- Bureau_des_Longitudes wikiPageWikiLink Jean-Charles_de_Borda.
- Bureau_des_Longitudes wikiPageWikiLink Jean-Nicolas_Buache.
- Bureau_des_Longitudes wikiPageWikiLink Jean_Baptiste_Joseph_Delambre.
- Bureau_des_Longitudes wikiPageWikiLink Joseph-Louis_Lagrange.
- Bureau_des_Longitudes wikiPageWikiLink Joseph_Jérôme_Lefrançais_de_Lalande.
- Bureau_des_Longitudes wikiPageWikiLink Jérôme_Lalande.
- Bureau_des_Longitudes wikiPageWikiLink Lazare_Carnot.
- Bureau_des_Longitudes wikiPageWikiLink Louis_Antoine_de_Bougainville.
- Bureau_des_Longitudes wikiPageWikiLink Manufacturer.
- Bureau_des_Longitudes wikiPageWikiLink Manufacturing.
- Bureau_des_Longitudes wikiPageWikiLink Mechanics.
- Bureau_des_Longitudes wikiPageWikiLink Minute.
- Bureau_des_Longitudes wikiPageWikiLink National_Convention.
- Bureau_des_Longitudes wikiPageWikiLink Navigation.
- Bureau_des_Longitudes wikiPageWikiLink Navigator.
- Bureau_des_Longitudes wikiPageWikiLink Noël_Simon_Caroché.
- Bureau_des_Longitudes wikiPageWikiLink Paris_Observatory.
- Bureau_des_Longitudes wikiPageWikiLink Peter_Galison.
- Bureau_des_Longitudes wikiPageWikiLink Physical_unit.
- Bureau_des_Longitudes wikiPageWikiLink Pierre-Simon_Laplace.
- Bureau_des_Longitudes wikiPageWikiLink Pierre_Méchain.
- Bureau_des_Longitudes wikiPageWikiLink Pneumatic_tube.
- Bureau_des_Longitudes wikiPageWikiLink Pneumatic_tubes.
- Bureau_des_Longitudes wikiPageWikiLink Poincaré.
- Bureau_des_Longitudes wikiPageWikiLink SI.
- Bureau_des_Longitudes wikiPageWikiLink Second.
- Bureau_des_Longitudes wikiPageWikiLink Standardisation.
- Bureau_des_Longitudes wikiPageWikiLink Standardization.
- Bureau_des_Longitudes wikiPageWikiLink Telescope.
- Bureau_des_Longitudes wikiPageWikiLink Telescopes.
- Bureau_des_Longitudes wikiPageWikiLink Thermodynamics.
- Bureau_des_Longitudes wikiPageWikiLink Time.
- Bureau_des_Longitudes wikiPageWikiLink Units_of_measurement.
- Bureau_des_Longitudes wikiPageWikiLinkText "Bureau des Longitudes".
- Bureau_des_Longitudes wikiPageWikiLinkText "Bureau of Longitudes".
- Bureau_des_Longitudes wikiPageWikiLinkText "astronomical ephemerides".
- Bureau_des_Longitudes hasPhotoCollection Bureau_des_Longitudes.
- Bureau_des_Longitudes wikiPageUsesTemplate Template:Authority_control.
- Bureau_des_Longitudes subject Category:1795_establishments_in_France.
- Bureau_des_Longitudes subject Category:Astronomy_in_France.
- Bureau_des_Longitudes subject Category:Astronomy_organizations.
- Bureau_des_Longitudes subject Category:Geography_organizations.
- Bureau_des_Longitudes subject Category:Scientific_organizations_established_in_1795.
- Bureau_des_Longitudes hypernym Institution.
- Bureau_des_Longitudes type University.
- Bureau_des_Longitudes type Organization.
- Bureau_des_Longitudes type Organization.
- Bureau_des_Longitudes type Thing.
- Bureau_des_Longitudes comment "The Bureau des Longitudes is a French scientific institution, founded by decree of 25 June 1795 and charged with the improvement of nautical navigation, standardisation of time-keeping, geodesy and astronomical observation. During the 19th century, it was responsible for synchronizing clocks across the world. It was headed during this time by François Arago and Henri Poincaré.".
- Bureau_des_Longitudes label "Bureau des Longitudes".
- Bureau_des_Longitudes sameAs Bureau_des_Longitudes.
- Bureau_des_Longitudes sameAs Bureau_des_Longitudes.
- Bureau_des_Longitudes sameAs Bureau_des_longitudes.
- Bureau_des_Longitudes sameAs Bureau_des_Longitudes.