Greenwich And Paris Meridians is a photograph by Royal Astronomical Society/science Photo Library which was uploaded on September 25th, 2018.
Greenwich And Paris Meridians
Greenwich and Paris Meridians. Map showing the triangulation triangles connecting the Greenwich and Paris Meridians, allowing maps constructed under... more
Title
Greenwich And Paris Meridians
Artist
Royal Astronomical Society/science Photo Library
Medium
Photograph
Description
Greenwich and Paris Meridians. Map showing the triangulation triangles connecting the Greenwich and Paris Meridians, allowing maps constructed under the rival systems to be compared. Large theodolites were used to take measurements across the Channel. The French continued to use the Paris Meridian for several decades after the Greenwich Meridian was adopted internationally in 1884. This work was first published in Philosophical Transactions of the Royal Society, then in volume one of a 1799 report by Mudge and Dalby for the UK's Board of Ordnance. This would later form the basis of the UK national mapping agency, the Ordnance Survey.
Uploaded
September 25th, 2018
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