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> Borda repeating circle
Borda repeating circle
author: E.Perrin/Novapix
reference: o-mar01-00006
Image Size 300 DPI: 40 * 40 cm
The Borda repeating circle in Marseille observatory. It has been used by astronomers Delambre and Mechain to measure the meridian arc from Dunkirk to Barcelona.
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