Paris meridian arc

GPTKB entity

Statements (23)
Predicate Object
gptkbp:instanceOf geodetic arc
gptkbp:alsoKnownAs gptkb:French_meridian_arc
gptkbp:country gptkb:France
gptkb:Spain
gptkbp:extendsTo gptkb:Barcelona
gptkb:Dunkirk
gptkbp:historicalSignificance establishment of the metric system
https://www.w3.org/2000/01/rdf-schema#label Paris meridian arc
gptkbp:length about 1,000 km
gptkbp:measures gptkb:Jean-Baptiste_Delambre
gptkb:Pierre_Méchain
1792
1798
gptkbp:purpose to determine the length of the meridian for the metric system
gptkbp:relatedTo gptkb:Paris_meridian
meridian arc measurement
Delambre–Méchain meridian arc
gptkbp:resultedIn definition of the metre as one ten-millionth of the distance from the equator to the North Pole along the meridian through Paris
gptkbp:surveyedBy gptkb:French_Academy_of_Sciences
gptkbp:surveyedUsing triangulation
gptkbp:usedFor definition of the metre
gptkbp:bfsParent gptkb:French_meridian_arc
gptkbp:bfsLayer 8