outer distant signal

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• 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

• Railway semaphore signal — One of the earliest forms of fixed railway signal is the semaphore. These signals display their different indications to train drivers by changing the angle of inclination of a pivoted arm . Semaphore signals were patented in the early 1840s by… …   Wikipedia

• Music of the Spheres (The Outer Limits) — This article is about The Outer Limits episode. For other uses, see Music of the spheres (disambiguation). Music of the Spheres The Outer Limits episode Episode no. Season 3 Episode 14 Directed by …   Wikipedia

• North American railroad signals — Main article: North American railway signaling Baltimore and Ohio Railroad Color Position Light bracket masts at Magnolia, West Virginia North American railroad signals generally fall into the category of multi headed electrically lit units… …   Wikipedia

• UK railway signalling — The railway signalling systems used across the majority of the United Kingdom rail network use lineside signals to advise the driver of the status of the section of track ahead. Most lineside signals are in colour light form, but a significant… …   Wikipedia

• Watercress Line — Mid Hants Railway 60163 Tornado climbing the bank heading towards Ropley during the Spring Steam Gala i …   Wikipedia

• Harrow and Wealdstone rail crash — infobox UK rail accident title= Harrow and Wealdstone rail crash date= 8 October 1952 08:19 location= Harrow and Wealdstone line = West Coast Main Line (BR London Midland) cause= SPAD trains= 3 pax= deaths= 112 injuries= 340 The Harrow and… …   Wikipedia

• DBAG Class 101 — Power type Electric Builder ADtranz Model 101 Build date 1996–1999 Total …   Wikipedia

• 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

• international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …   Universalium

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium