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- Grade_measurement abstract "Grade measurement is the geodetic determination of the local radius of curvature of the figure of the Earth by determining the difference in astronomical latitude between two locations on the same meridian, the metric distance between which is known.The first known grade measurement was performed by Eratosthenes (240 BC) between Alexandria and Syene in what is now Egypt, determining the radius of the Earth with remarkable correctness. The Dutch geodesist Snellius (~1620) repeated the experiment between Alkmaar and Bergen op Zoom using more modern geodetic instrumentation.Later grade measurements aimed at determining the flattening of the Earth ellipsoid by measuring at different geographic latitudes. The first of these was the one commissioned by the French Academy of Sciences in 1735-1738, involving measurement expeditions to Lapland (Maupertuis et al.) and Peru (Pierre Bouguer et al.).Later, Struve measured a geodetic triangle chain between the Arctic Sea and the Black Sea, and Bessel compiled several meridian arcs to compute the famous Bessel ellipsoid (1841). Nowadays, the method is replaced by worldwide geodetic networks and by satellite geodesy.Also the imaginary grade measurement described by Jules Verne in his book \"Adventures of 3 Russians and 3 Englishmen in South Africa\" of 1872 may be mentioned.".
- Grade_measurement wikiPageID "1557013".
- Grade_measurement wikiPageLength "1845".
- Grade_measurement wikiPageOutDegree "28".
- Grade_measurement wikiPageRevisionID "697106180".
- Grade_measurement wikiPageWikiLink Alkmaar.
- Grade_measurement wikiPageWikiLink Arctic_Ocean.
- Grade_measurement wikiPageWikiLink Bergen_op_Zoom.
- Grade_measurement wikiPageWikiLink Bessel_ellipsoid.
- Grade_measurement wikiPageWikiLink Black_Sea.
- Grade_measurement wikiPageWikiLink Category:Geodesy.
- Grade_measurement wikiPageWikiLink Earth_ellipsoid.
- Grade_measurement wikiPageWikiLink Eratosthenes.
- Grade_measurement wikiPageWikiLink Figure_of_the_Earth.
- Grade_measurement wikiPageWikiLink Flattening.
- Grade_measurement wikiPageWikiLink French_Geodesic_Mission.
- Grade_measurement wikiPageWikiLink Friedrich_Bessel.
- Grade_measurement wikiPageWikiLink Friedrich_Georg_Wilhelm_von_Struve.
- Grade_measurement wikiPageWikiLink Geodesy.
- Grade_measurement wikiPageWikiLink Geodetic_astronomy.
- Grade_measurement wikiPageWikiLink Geodetic_network.
- Grade_measurement wikiPageWikiLink Jules_Verne.
- Grade_measurement wikiPageWikiLink Latitude.
- Grade_measurement wikiPageWikiLink Meridian_(geography).
- Grade_measurement wikiPageWikiLink Meridian_arc.
- Grade_measurement wikiPageWikiLink Pierre_Bouguer.
- Grade_measurement wikiPageWikiLink Pierre_Louis_Maupertuis.
- Grade_measurement wikiPageWikiLink Satellite_geodesy.
- Grade_measurement wikiPageWikiLink Struve_Geodetic_Arc.
- Grade_measurement wikiPageWikiLink Willebrord_Snellius.
- Grade_measurement wikiPageWikiLinkText "Grade measurement".
- Grade_measurement wikiPageWikiLinkText "grade measurement".
- Grade_measurement wikiPageWikiLinkText "measured".
- Grade_measurement auto "yes".
- Grade_measurement date "December 2009".
- Grade_measurement wikiPageUsesTemplate Template:Cartography-stub.
- Grade_measurement wikiPageUsesTemplate Template:Measurement-stub.
- Grade_measurement wikiPageUsesTemplate Template:Unreferenced_stub.
- Grade_measurement subject Category:Geodesy.
- Grade_measurement hypernym Determination.
- Grade_measurement type Software.
- Grade_measurement type Geophysic.
- Grade_measurement comment "Grade measurement is the geodetic determination of the local radius of curvature of the figure of the Earth by determining the difference in astronomical latitude between two locations on the same meridian, the metric distance between which is known.The first known grade measurement was performed by Eratosthenes (240 BC) between Alexandria and Syene in what is now Egypt, determining the radius of the Earth with remarkable correctness.".
- Grade_measurement label "Grade measurement".
- Grade_measurement sameAs Q1259418.
- Grade_measurement sameAs Gradmåling.
- Grade_measurement sameAs Gradmessung.
- Grade_measurement sameAs Graadmeting.
- Grade_measurement sameAs m.05b4dq.
- Grade_measurement sameAs Gradmätning.
- Grade_measurement sameAs Q1259418.
- Grade_measurement wasDerivedFrom Grade_measurement?oldid=697106180.
- Grade_measurement isPrimaryTopicOf Grade_measurement.