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by throw0101a
2560 days ago
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> Most imperial units seem to be based on simple laymen measurements. I would not label the nautical mile as "imperial". It was based on mathematical properties of the planet: > Historically, it was defined as one minute (1/60 of a degree) of latitude. Just like the metre originally was: > The metre was originally defined as 1⁄10,000,000 of the meridian arc from the North pole to the equator passing through Dunkirk. * https://en.wikipedia.org/wiki/Nautical_mile |
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