visual signalman

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• Signalman (rank) — Signalman is a military rank similar to that of Private (rank), but is used within units that specialize in communication. See Signaller for more about the roles of Signalmen.United States UseU.S. NavyIn the U.S. Navy, signalman (usually… …   Wikipedia

• signalman —    Formerly an important member of a ship’s crew in the days when communication between ships at sea was largely a matter of using visual signals. ‘Well, all right, Signalman?’ asks a character in Border Country, by Raymond Williams. The person… …   A dictionary of epithets and terms of address

• Traffic Control — ➡ law enforcement * * * Introduction       supervision of the movement of people, goods, or vehicles to ensure efficiency and safety.       Traffic is the movement of people and goods from one location to another. The movement typically occurs… …   Universalium

• Railway signalling — Not to be confused with Railway signal. A gantry of British semaphore signals seen from the cab of a steam locomotive Railway signalling is a system used to control railway traffic safely, essentially to prevent trains from colliding. Being… …   Wikipedia

• British absolute block signalling — The principle of the British absolute block system of railway signalling is to facilitate the safe operation of a railway by preventing more than one train from occupying a defined section of route at the same time. This system is used on double… …   Wikipedia

• Semaphore line — This article is about the communication system using towers with pivoting shutters. For other uses, see Semaphore (disambiguation). For the now closed railway in Adelaide, Australia, see Semaphore railway line, Adelaide. A Chappe telegraph at… …   Wikipedia

• Railway signal — Not to be confused with Railway signalling. A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal s… …   Wikipedia

• Signal box — A signal box or signal cabin is a building from which railway signals and points are controlled. The term signal cabin is used in Ireland, parts of Scotland and in Australia while in North America, the term interlocking tower predominates.… …   Wikipedia

• Flag semaphore — is a system for conveying information at a distance by means of visual signals with hand held flags, rods, disks, paddles, or occasionally bare or gloved hands. Information is encoded by the position of the flags; it is read when the flag is in a …   Wikipedia

• Quartermaster — refers to two different military occupations. In land armies, it is a term referring to a military individual, or unit, who specializes in supplying and provisioning troops. In naval usage, it means a navigator on a ship. The equivalent naval… …   Wikipedia

• USS Liberty incident — Coordinates: 31°23′N 33°23′E / 31.39°N 33.38°E / 31.39; 33.38 …   Wikipedia