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 =
Nautical fiction life. For to limit the scope of this article, it focuses on the narrower, shared definitions of sea or maritime literature which focus on the limited sea/nautical novel and the fiction that grows out of that set of generic expectations and avoids broader definitions of "sea novels" which focus on thematic discussions of nautical topics in culture. In so doing, this article highlights what critics describe as the more conventional definition for the genre, even when they attempt to expand its scope. Sea narratives have a long history of development, arising from cultures with genres of adventure and travel narratives