Musée d'Histoire de Marseille : Meridian repeater used to measure the meridian between Dunkirk and Barcelona (1792-1799) by Delambre & Mechain.

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This instrument was invented by the French Borda and manufactured in by Delambre & Mechain between 1792 & 1799 to calculate the exact length of a metre (10million/quarter) of the meridian Dunkirk/Barcelona. Only 1 piece remaining marked "IIII"

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Size: 3456px × 5184px
Location: Marseille
Photo credit: © Roland Bouvier / Alamy / Afripics
License: Royalty Free
Model Released: No

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