Why nautical mile is different from statute mile, Civil Engineering

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One nautical mile is described by one latitude minute of arc (there are 60 like minutes to a degree). This equals 1852 meters, and roughly (but coincidentally) 2000 yards or 6000 feet. (Edit: really, a standard nautical mile is 6076 feet, 6000 feet and 2000 yards are commonly used approximations, but create an error of about 1%).

The statute mile had a little fuzzier definition to start with, as one mile was the similar as 1000 roman PAces/steps. The definition has as changed, but one statute mile equals about 1609 meters.

 

 


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