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 nautical fiction is often marketed for men. Nautical fiction usually includes distinctive themes, such as a focus on masculinity and heroism, investigations of social hierarchies, and the psychological struggles of the individual in the hostile environment of the sea. Stylistically, readers of the genre expect an emphasis on adventure, accurate representation of maritime culture, and use of nautical language. Works of nautical fiction often include elements overlapping with other genres, including historical fiction, adventure fiction, war fiction, children's literature, travel narratives (such as the Robinsonade), the social problem novel and psychological fiction. What constitutes nautical fiction or sea fiction, and