1. Meridian arcIn geodesy, a meridian arc measurement is a highly accurate determination of the distance between two points with the same longitude. Two or more such determinations at different locations then specify the shape of the reference ellipsoid which best approximates the shape of the geoid. This process is called the determination of the Figure of the Earth. The earliest determinations of the size of a spherical Earth required a single arc.
Read “Meridian arc” on English Wikipedia
Read “子午線弧” on Japanese Wikipedia
Read “Meridian arc” on DBpedia
Read “Meridian arc” on English Wikipedia
Read “子午線弧” on Japanese Wikipedia
Read “Meridian arc” on DBpedia
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