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Great-circle navigation. Great-circle navigation or orthodromic navigation (related to orthodromic course; from Ancient Greek ορθός (orthós) 'right angle' and δρόμος (drómos) 'path') is the practice of navigating a vessel (a ship or aircraft) along a great circle. Such routes yield the shortest distance between two points on the globe.
Mile marker 23 on US 36 in Delaware County, Ohio. It marks the location which is 23 miles from the Union County line. A highway location marker is the modern-day equivalent of a milestone. Unlike traditional milestones, however, which (as their name suggests) were originally carved from stone and sited at one-mile intervals, modern highway ...
The postmile system is the only route reference system used by the California Department of Transportation (Caltrans). The system was operative by 1966. [1] California was the last state in the country to adopt mile markers, and exit numbers were not implemented until 2002. [2] The state started the Cal-NExUS program in 2002, which would create ...
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Navigational instrument. Navigational instruments are instruments used by nautical navigators and pilots as tools of their trade. The purpose of navigation is to ascertain the present position and to determine the speed, direction, etc. to arrive at the port or point of destination.
The great-circle distance, orthodromic distance, or spherical distance is the distance between two points on a sphere, measured along the great-circle arc between them. This arc is the shortest path between the two points on the surface of the sphere. (By comparison, the shortest path passing through the sphere's interior is the chord between ...
06-36448. GNIS feature IDs. 1652727, 2410101. Website. indio .org. Indio ( Spanish for "Indian") is a city in Riverside County, California, United States, in the Coachella Valley of Southern California 's Colorado Desert region. Indio is approximately 125 miles (201 km) east of Los Angeles, 23 miles (37 km) east of Palm Springs, and 98 miles ...
Map projection. A medieval depiction of the Ecumene (1482, Johannes Schnitzer, engraver), constructed after the coordinates in Ptolemy's Geography and using his second map projection. In cartography, a map projection is any of a broad set of transformations employed to represent the curved two-dimensional surface of a globe on a plane.