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japanuspus
on Aug 28, 2023
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111,111.1 meters is reliably 1 degree of latitude
The work to measure the meridian with the highest possible precision was in itself a fascinating multi-year ordeal:
https://en.wikipedia.org/wiki/Arc_measurement_of_Delambre_an...
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mrciacco
on Aug 28, 2023
[–]
A nice novel about it is Denis Guedj's "La Méridienne".
https://en.wikipedia.org/wiki/Denis_Guedj
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