Where Did Nautical Miles Come from?
Nautical Miles Are Used to Measure the Distance Traveled Through the Water. a Nautical Mile Is Slightly Longer Than a Mile on Land, Equalling 1.1508...
Nautical miles are used to measure the distance traveled through the water. A nautical mile is slightly longer than a mile on land, equalling 1.1508 land-measured (or statute) miles. The nautical mile is based on the Earth's longitude and latitude coordinates, with one nautical mile equaling one minute of latitude.
How did nautical miles come about?
Eratosthenes and his successors had already assessed the circumference of the Earth, helping other mathematicians to build on. Gunter proposed the nautical mile as one minute or one-sixtieth (1/60) of one degree of latitude (one degree is 1/360 of a circle, one minute of arc is 1/21600 of a circle).
Where did the mile measurement come from?
It originated from the Roman mille passus, or “thousand paces,” which measured 5,000 Roman feet. About the year 1500 the “old London” mile was defined as eight furlongs. At that time the furlong, measured by a larger northern (German) foot, was 625 feet, and thus the mile equaled 5,000 feet.