Board of Longitude chronometers, keeping) the time of the reference place when one is far away from it. For details of the efforts towards determining the longitude, see History of longitude. For many decades a sufficiently accurate chronometer was prohibitively expensive. The lunar distance method was used by mariners either in conjunction with or instead of the marine chronometer. However, with the expectation that accurate clocks would eventually become commonplace, John Harrison showed that his method was the way of the future. However the board, to its discredit, never awarded the prize to Harrison, nor anyone else. With the significant problems considered as
Navy Ten Nautical Miler throughout the route are also marked off in nautical miles rather than statute miles. Awards will be presented three deep in the following categories: In April 2010, race coordinators were contacted by Navy personnel serving in Farah, Afghanistan interested in running a satellite version of the race there. As such, the race was ran concurrently in both locations, with winners in each category crowned locally in both locations. The two locations were connected via satellite uplink. 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