Nautical mile 1 sea mile", followed by "For most practical purposes distance is measured from the latitude scale, assuming that one minute of latitude equals one nautical mile". One tenth of a nautical mile is a cable length. The derived unit of speed is the knot, defined as one nautical mile per hour. The metre was originally defined as of the meridian arc from the North pole to the equator passing through Dunkirk. The Earth’s circumference is therefore approximately 40,000 km. The equatorial circumference is slightly longer than the polar circumference – the measurement based on this (40,075.017 km x x =
Missouri Route 240 Route 240. It begins at the Glasgow end of the bridge over the Missouri River. It heads north concurrent with Route 5 through Downtown Glasgow. After passing through downtown, Route 5 leaves, and Business 240 runs eastward to the new routing of Routes 5 and 240. Alternate Route 240 in rural Howard County is technically a spur route that provides easy access from eastbound Route 240 to westbound U.S. Route 40, and vice versa. The route runs northeast from US 40 at the southeastern edge of the Davidsdale Conservation Area, then passes through some farmland. After running along the northwestern