Talk:Q39359957

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Autodescription — UK nautical miles (Q39359957)

description: Unit of distance measurement
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Definition moved from English description: 1 nautical mile is the angular distance of 1 minute of arc on the earth's surface. As these differ slightly (6108' at pole c.f. 6046' at equator) 6080 was adopted (this being it's approximate value in the English Channel).

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