It was the first electrical telecommunications system and the most widely used of a number of early messaging systems called telegraphs, that were devised...
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Telegraphy (redirect from Telegraph)
Morse. The electric telegraph was slower to develop in France due to the established optical telegraph system, but an electrical telegraph was put into use...
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constructed. Half a century later, semaphore lines were replaced by the electrical telegraph, which was cheaper, faster, and more private. The line-of-sight distance...
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A telegraph key, clacker, tapper or morse key is a specialized electrical switch used by a trained operator to transmit text messages in Morse code in...
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information technology professionals, especially electrical engineers. It began in 1871 as the Society of Telegraph Engineers. In 2006, it merged with the Institution...
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Insulator (electricity) (redirect from Telegraph insulators)
An electrical insulator is a material in which electric current does not flow freely. The atoms of the insulator have tightly bound electrons which cannot...
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Electricity (redirect from Electrical)
ownership. Electricity is used within telecommunications, and indeed the electrical telegraph, demonstrated commercially in 1837 by Cooke and Wheatstone, was one...
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code. Telegraphy usually refers to the electrical telegraph, but telegraph systems using the optical telegraph were in use before that. A code consists...
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A telegraph sounder is an antique electromechanical device used as a receiver on electrical telegraph lines during the 19th century. It was invented by...
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Utility pole (redirect from Telegraph Post)
for telegraph wires and later for telephone wires. Because they are made of granite, the poles last indefinitely. On poles carrying both electrical and...
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commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use. Electrical engineering is divided into a...
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Transatlantic telegraph cables were undersea cables running under the Atlantic Ocean for telegraph communications. Telegraphy is an obsolete form of communication...
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electromagnetic telegraph" not as a new device. On the other side of the Atlantic Ocean, Samuel Morse developed a version of the electrical telegraph which he...
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The Cooke and Wheatstone telegraph was an early electrical telegraph system dating from the 1830s invented by English inventor William Fothergill Cooke...
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Telecommunications (redirect from Electrical communication)
Physics. Other early pioneers in electrical and electronic telecommunications include co-inventors of the telegraph Charles Wheatstone and Samuel Morse...
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Samuel Morse (section Telegraph)
the electrical telegraph in May 1837, and within a short time had provided the Great Western Railway with a 13-mile (21 km) stretch of telegraph. However...
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telegraph. By request of the Hamburg Senator Carl Möhring, the Americans William and Charles Robinson demonstrated their electrical Morse telegraph....
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Wireless telegraphy (redirect from Wireless telegraph)
American Telephone and Telegraph Company Electrical telegraph Imperial Wireless Chain Radioteletype American Institute of Electrical Engineers. (1908). "Wireless...
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Semaphore (section Optical telegraph)
purely by hydraulic fluid pressure. In the early 19th century, the electrical telegraph was gradually invented allowing a message to be sent over a wire...
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Morse code (section Pre-Morse telegraphs and codes)
System. William Cooke and Charles Wheatstone in Britain developed an electrical telegraph that used electromagnets in its receivers. They obtained an English...
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railroad track was destroyed. Winds and storm surge also downed electrical, telegraph, and telephone wires. The surge swept buildings off their foundations...
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History of the telephone (section Electrical devices)
improvements of the electrical telegraph. In 1804, Spanish polymath and scientist Francisco Salva Campillo constructed an electrochemical telegraph. The first...
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optical telegraphs, radio telegraph stations, or riding couriers. Early 19th century methods of this type evolved into the electrical telegraph networks...
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system. The idea that the wires needed for electrical telegraph could be eliminated, creating a wireless telegraph, had been around for a while before the...
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The Foy–Breguet telegraph, also called the French telegraph, was an electrical telegraph of the needle telegraph type developed by Louis-François-Clement...
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applications, such as the solenoid (a term coined by him) and the electrical telegraph. As an autodidact, Ampère was a member of the French Academy of Sciences...
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A needle telegraph is an electrical telegraph that uses indicating needles moved electromagnetically as its means of displaying messages. It is one of...
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The Quadruplex telegraph is a type of electrical telegraph which allows a total of four separate signals to be transmitted and received on a single wire...
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Submarine communications cable (redirect from Underwater telegraph cable)
the dead whale's body. Early long-distance submarine telegraph cables exhibited formidable electrical problems. Unlike modern cables, the technology of the...
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the world's first public telegraph company. The equipment used was the Cooke and Wheatstone telegraph, an electrical telegraph developed a few years earlier...
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