Nautical chart always true north, rather than magnetic north, towards which a compass points. Most charts include a compass rose depicting the variation between magnetic and true north. However, the use of the Mercator projection is not without its drawbacks. Mercator's technique was to make the lines of longitude parallel. On the real globe, the lines of longitude converge as one goes north or south away from the equator, until they meet at the pole. This distortion means that horizontal distances are exaggerated. Mercator's solution, imperfect as it might be, was to increase the distance between lines of latitude in proportion; in
Navy Ten Nautical Miler Navy Ten Nautical Miler The Navy Ten Nautical Miler (Navy 10 nm, 11.5 mi) is a run held at Naval Support Activity Mid-South in Millington, Tennessee. It is unique because it is the only race measured in nautical miles as opposed to statute miles. The Navy Ten Nautical Miler is an event officially sanctioned by USA Track & Field, the national governing body for track and field, long-distance running, and race walking in the United States. The event is coordinated in association with the Memphis Runners Track Club. The Navy Ten Nautical Miler was founded in 2010 to give the