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Heliograph

A heliograph (from Ancient Greek ἥλιος (hḗlios) 'sun' and γράφειν (gráphein) 'to write') is a solar telegraph system that signals by flashes of sunlight (generally using Morse code from the 1840s) reflected by a mirror. The flashes are produced by momentarily pivoting the mirror, or by interrupting the beam with a shutter.

History, Description & Automated heliographs

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Overview

Description

History

Automated heliographs

Advanced semantic analysis

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Map overview Semantic statistics

Heliograph

Nodes97
Edges96
Triples70
Avg. degree1.98
Density0.020619
Components1

How this topic connects Entity context

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Heliograph

Top relations

related to External links · 33
Heliograph → American, Apache WarsSignals, April, Archived, Australia, Australian War Memorial, Begbie, British, British Mance, British Mark, Clicking, Communicating, Eliografo Detailed, French LeSeurre, Heliograph Detailed, Heliography, Italian, Mance Mark, Mirrors Photographs, Museum
related to history · 12
Heliograph → Capri, Carl Friedrich Gauss, For, Göttingen, His, Italian, Roman, Rome, The German, This, Tiberius, University
related to Description · 9
Heliograph → British Army Mance Mark, Fig, It, Keeping, Most, The, There, They, This
related to Automated heliographs · 7
Heliograph → By, French Army, Mangin, Many French, Most, The, The Mangin
see also · 5
Heliograph → Handheld, Heliography, Joseph Nicéphore Niépce, Operation On-Target, Scouting
related to Further reading · 4
Heliograph → Crown Point, Great Days, Lewis Coe, OCLC

Important terminology Word statistics

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Important terminology

heliographs used mirror british army signal war communication military mirrors mance flashes could mi km use beam solar signals instrument

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Heliographrelated to Automated heliographsMost0.60section
Heliographrelated to Automated heliographsThe0.60section
Heliographrelated to Automated heliographsMany French0.60section
Heliographrelated to Automated heliographsBy0.60section
Heliographrelated to Automated heliographsMangin0.60section
Heliographrelated to Automated heliographsFrench Army0.60section
Heliographrelated to Automated heliographsThe Mangin0.60section
Heliographrelated to DescriptionThere0.60section
Heliographrelated to DescriptionMost0.60section
Heliographrelated to DescriptionBritish Army Mance Mark0.60section
Heliographrelated to DescriptionFig0.60section
Heliographrelated to DescriptionIt0.60section

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    Min side: 3
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