Visual Telegraphs

Status: 🌿

Signal fires is one of the oldest technologies for transmitting information, “perhaps dating back to the controlled use of fire.”

The idea of using a single difference to communicate any message, instead of predetermined options, became prevalent with light telegraphs in the 17th century, utilizing light and the telescope.

A Glossary for Information TheoryAbout how it was builtAbout the formattingAbout the processAbout the structureAbout this digital gardenAncient Egypt Writing SystemsAncient Phoenicians Writing SystemAncient Semitic Writing SystemsChannel CapacityDemotic Writing SystemDevelopment of Writing SystemsDevices For Sending InformationElectromagnetic TelegraphsElectrostatic TelegraphsError Correction CodesHamming CodeHieratic Writing SystemHieroglyphics Writing SystemIdeogramsInformation TheoryLight TelegraphsMarkov Chain ModelMathematical Theory of CommunicationModels and TheoriesMorse CodePapyrusPictogramsPolybius squareQuadruplex TelegraphSignal FiresSignaling RateSource CodingTelegraphsThe Gauss-Webber TelegraphThe Rebus PrincipleThe Rosetta StoneVisual TelegraphsWriting Systems: From Symbols to LettersWritten Language