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 =
Interstate 240 (Oklahoma) Once completed, Interstate 240 was 31.76 miles (51.11 km) long. As part of Oklahoma's 75th anniversary (Diamond Jubilee) celebrations in 1982, ODOT extended I-44 to Lawton and Wichita Falls, Texas along the H.E. Bailey Turnpike. This caused I-240 to be truncated to its current western terminus near Will Rogers World Airport. Interstate 240 (Oklahoma) Interstate 240 (abbreviated I-240) is an Interstate Highway in Oklahoma, United States, that runs 16.22 miles (26.1 km) west from Interstate 40 to Interstate 44 in southern Oklahoma City. After its terminus in southwest Oklahoma City, the main I-240 roadbed becomes Interstate 44 and Airport Road