telegraphe wikipedia - EAS
- telegraph Wikipedia ( historical ) An apparatus , or a process , for communicating rapidly between distant points, especially by means of established visible or audible signals representing words or ideas , or by means of words and signs , transmitted by electrical means.
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See all on Wikipediahttps://fr.wikipedia.org/wiki/TélégrapheLe télégraphe (du grec ancien τηλε têlé, loin et γραφειν graphein, écrire) est un système destiné à transmettre des messages, appelés télégrammes, d'un point à un autre sur de grandes distances, à l'aide de codes pour une transmission rapide et fiable.
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See moreLe télégraphe n'est pas le premier système permettant de transmettre des informations à distance. Plusieurs peuples ont mis au point des procédés de communication permettant de répercuter une information sur de
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Télégraphe aérien romain
Les Romains ont édifié de nombreuses tours à signaux, comme la...
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Le développement de l'électricité et de l'électrodynamique fait naître l'ère du télégraphe électrique :
• en 1753, un projet théorique est proposé par un auteur écossais anonyme qui entend relier un...
See moreLa télégraphie sans fil (appelée aussi TSF) permet d'émettre des messages à distance en utilisant des ondes radio.
Dès les premières...
See more• Encyclopédie des Postes, télégraphes et téléphones, Rombaldi, 1957
• Bibliographie Histoire de la télégraphie (ouvrages parus de 1780 à 1899)...
See moreWikipedia text under CC-BY-SA licenseWas this helpful?Thanks! Give more feedback- https://en.wikipedia.org/wiki/Telegraphy
Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas pigeon post is not. Ancient signallingsystems, although sometimes quite extensive and sophisticated as in China, were generally not capable of transmi…
Wikipedia · Text under CC-BY-SA license - https://en.wikipedia.org/wiki/Télégraphe_(Paris_Métro)
- Télégraphe is a station on line 11 of the Paris Métro in the 19th and 20th arrondissements. It is named after the nearby rue de Télégraphe, which was once a chemin de ronde of the park of the Château de Ménilmontant. Its name comes from the optical telegraph invented by Claude Chappe in 1792. This was the first practical telecommunications system, ...
- https://en.wikipedia.org/wiki/The_Daily_Telegraph
The Daily Telegraph, known online and elsewhere as The Telegraph (/ ˈ t ɛ l ɪ ɡ r æ f /), is a national British daily broadsheet newspaper published in London by Telegraph Media Group and distributed across the United Kingdom and internationally.. It was founded by Arthur B. Sleigh in 1855 as The Daily Telegraph & Courier.Considered a newspaper of record over The Times in …
- Editor: Chris Evans
- Country: United Kingdom
- Founded: 29 June 1855; 166 years ago (as Daily Telegraph & Courier)
- https://en.wikipedia.org/wiki/Electrical_telegraph
- Early work
From early studies of electricity, electrical phenomena were known to travel with great speed, and many experimenters worked on the application of electricity to communications at a distance. All the known effects of electricity—such as sparks, electrostatic attraction, chemical changes, elec… - First working systems
The first working telegraph was built by the English inventor Francis Ronalds in 1816 and used static electricity. At the family home on Hammersmith Mall, he set up a complete subterranean system in a 175-yard (160 m) long trench as well as an eight-mile (13 km) long overhead telegra…
- Early work
- https://en.wikipedia.org/wiki/Hydraulic_telegraph
From Wikipedia, the free encyclopedia An ancient hydraulic telegraph being used by Aeneas to send a message. A hydraulic telegraph ( Greek: υδραυλικός τηλέγραφος) refers to two different semaphore systems involving the use of water-based mechanisms as a telegraph.
- https://en.wikipedia.org/wiki/Fort_du_Télégraphe
The Fort du Télégraphe, or Fort Berwick, is located in the Maurienne valley on the road to the Col du Galibier between Valloire and Saint-Michel-de-Maurienne, at the Col du Télégraphe, dominating the valley of the Arc.The location at an altitude of 1,585 metres (5,200 ft) previously accommodated a telegraph of the Chappe system using articulating arms to send messages …
- https://en.wikipedia.org/wiki/Optical_telegraph
An optical telegraph is a line of stations, typically towers, for the purpose of conveying textual information by means of visual signals. There are two main types of such systems; the semaphore telegraph which uses pivoted indicator arms and conveys information according to the direction the indicators point, and the shutter telegraph which uses panels that can be …
- https://en.wikipedia.org/wiki/Col_du_Télégraphe
Col du Télégraphe is a mountain pass in the French Alps situated above the Maurienne valley between the eastern end of the massif d'Arvan-Villards and the massif des Cerces.. The pass links Saint-Michel-de-Maurienne to the north and Valloire to the south, as well as forming an access point to the col du Galibier via its north face.. The route is often used during the ascent to Col …
- https://simple.wikipedia.org/wiki/Telegraphy
From Simple English Wikipedia, the free encyclopedia Instrument Morse code Telegraphy (from the Greek words tele (τηλε) = far and graphein (γραφειν) = write) is the long-distance transmission of written messages without physical transport of letters. A telegraph sends electric pulses in a special code, composed from short and large marks.
