It was the first electrical telecommunications system and the most widely used of a number of early messaging systems called telegraphs, that were devised...

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...

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...

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...

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...

information technology professionals, especially electrical engineers. It began in 1871 as the Society of Telegraph Engineers. In 2006, it merged with the Institution...

ownership. Electricity is used within telecommunications, and indeed the electrical telegraph, demonstrated commercially in 1837 by Cooke and Wheatstone, was one...

for telegraph wires and later for telephone wires. Because they are made of granite, the poles last indefinitely. On poles carrying both electrical and...

code. Telegraphy usually refers to the electrical telegraph, but telegraph systems using the optical telegraph were in use before that. A code consists...

A telegraph sounder is an antique electromechanical device used as a receiver on electrical telegraph lines during the 19th century. It was invented by...

commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use. Electrical engineering is divided into a...

The Cooke and Wheatstone telegraph was an early electrical telegraph system dating from the 1830s invented by English inventor William Fothergill Cooke...

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...

Transatlantic telegraph cables were undersea cables running under the Atlantic Ocean for telegraph communications. Telegraphy is an obsolete form of communication...

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...

telegraph. By request of the Hamburg Senator Carl Möhring, the Americans William and Charles Robinson demonstrated their electrical Morse telegraph....

American Telephone and Telegraph Company Electrical telegraph Imperial Wireless Chain Radioteletype American Institute of Electrical Engineers. (1908). "Wireless...

Physics. Other early pioneers in electrical and electronic telecommunications include co-inventors of the telegraph Charles Wheatstone and Samuel Morse...

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...

System. William Cooke and Charles Wheatstone in Britain developed an electrical telegraph that used electromagnets in its receivers. They obtained an English...

railroad track was destroyed. Winds and storm surge also downed electrical, telegraph, and telephone wires. The surge swept buildings off their foundations...

A needle telegraph is an electrical telegraph that uses indicating needles moved electromagnetically as its means of displaying messages. It is one of...

improvements of the electrical telegraph. In 1804, Spanish polymath and scientist Francisco Salva Campillo constructed an electrochemical telegraph. The first...

optical telegraphs, radio telegraph stations, or riding couriers. Early 19th century methods of this type evolved into the electrical telegraph networks...

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...

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...

The Foy–Breguet telegraph, also called the French telegraph, was an electrical telegraph of the needle telegraph type developed by Louis-François-Clement...

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...

the dead whale's body. Early long-distance submarine telegraph cables exhibited formidable electrical problems. Unlike modern cables, the technology of the...

the world's first public telegraph company. The equipment used was the Cooke and Wheatstone telegraph, an electrical telegraph developed a few years earlier...