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Optical telegraph

An optical telegraph is a line of stations, typically towers, for the purpose of conveying textual information by means of visual signals (a form of optical communication). 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…

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Overview

Etymology and terminology

Early designs

Prevalence

As first data networks

In popular culture

Advanced semantic analysis

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Map overview Semantic statistics

Optical telegraph

Nodes279
Edges278
Triples145
Avg. degree1.99
Density0.007168
Components1

How this topic connects Entity context

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Optical telegraph

Top relations

related to References · 67
Optical telegraph → Abraham Niclas, Afhandling, Alabama, Allyn, Anton, April, Armaments, Bacon, Bjorn, Boca Raton, Boston, Burns, Chapter, Communication, Communications, Crowley, Culture, Data Networks, David, Donald
related to Other regions · 19
Optical telegraph → But, Chappe, Danish, For, France, Funen, Great Belt, In, It, Korsør, Many, Napoleon, Nyborg, Once, Sprogø, Storebæltstelegrafen, Sweden, UK, Zealand
related to External links · 16
Optical telegraph → Archived, Blanc, Chappe's, Details, England's, February, Italian, Italy, March, Murray's, Popham's, Semophore, Spanish, Wayback MachineChart, Wayback MachineMap, Webpage
related to As first data networks · 10
Optical telegraph → An, Chappe, Edelcrantz, French, Hooke's, Some, Swedish, The, These, This
related to Early designs · 9
Optical telegraph → Battle, British, Modern, Optical, Possibly, Robert Hooke, Royal Society, The, Vienna
related to Sweden · 9
Optical telegraph → France, French, It, Its, Katarina Church, Stockholm, Sweden, Swedish, The
related to France · 6
Optical telegraph → Chappe, Claude Chappe, Credit, France, French, Le
related to In popular culture · 6
Optical telegraph → By, Chappe, In, Mister Pencil, Rodolphe Töpffer, The Chappe
is a · 1
Optical telegraph → line of stations

Important terminology Word statistics

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Important terminology

telegraph system line semaphore stations optical chappe used code station french arms first network two could message sweden also many

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Optical telegraphis aline of stations0.90text
the novel Pavaneinstance ofthe optical telegraph concept is mainly kept alive in popular culture through fiction0.80text
Terry Pratchett'sinstance ofthe optical telegraph concept is mainly kept alive in popular culture through fiction0.80text
Optical telegraphrelated to As first data networksThe0.60section
Optical telegraphrelated to As first data networksChappe0.60section
Optical telegraphrelated to As first data networksEdelcrantz0.60section
Optical telegraphrelated to As first data networksThese0.60section
Optical telegraphrelated to As first data networksFrench0.60section
Optical telegraphrelated to As first data networksSwedish0.60section
Optical telegraphrelated to As first data networksSome0.60section
Optical telegraphrelated to As first data networksAn0.60section
Optical telegraphrelated to As first data networksThis0.60section

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