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 =
Internal measurement Internal measurement The internal measurement is one of the measurement theories. From, we introduce the definition of the internal measurement. The experience consists of "unremitting measurements". These "unremitting measurements" appear only in the experience. In the experience, if any individual has a relation to another individual then this is a "measurement which identifies another individual", where this measurement enable if the individual can specify the effects from another individual. Moreover, a "measurement which identifies another individual" is unremitting in the experience. As above a measurement such that if any individual measure another individual then this measurement inherent in "unremitting measurements"