Anglo-French Survey (1784–1790)
The Anglo-French Survey (1784–1790) refers to the survey to measure the relative situation of Greenwich Observatory and the Paris Observatory. The English operations, executed by William Roy, consisted of the measurements of bases at Hounslow Heath (1784) and Romney Marsh (1787), the measurements of the angles of the triangles (1787–1788) and finally the calculation of all the triangles (1788-1790). The survey is very significant as the first precise survey within Britain, and the forerunner of the work of the Ordnance Survey which was founded in 1791, one year after Roy's death.
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Anglo-French Survey (1784–1790)
The Anglo-French Survey (1784–1790) refers to the survey to measure the relative situation of Greenwich Observatory and the Paris Observatory. The English operations, executed by William Roy, consisted of the measurements of bases at Hounslow Heath (1784) and Romney Marsh (1787), the measurements of the angles of the triangles (1787–1788) and finally the calculation of all the triangles (1788-1790). The survey is very significant as the first precise survey within Britain, and the forerunner of the work of the Ordnance Survey which was founded in 1791, one year after Roy's death.
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The Anglo-French Survey (1784– ...... 1, one year after Roy's death.
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The Anglo-French Survey (1784– ...... 1, one year after Roy's death.
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Anglo-French Survey (1784–1790)
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