Telegraph

The telegraph was invented in 1844 by Samuel Morse (1791-1872). It helped long distance communication. It worked by transmmiting electrical signals over a wire between two stations. Also, he invented a code that was made with dots and dashes. Each letter had a dot or a dash to know which letter was the other person trying to say. It was later removed by the telephone.

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Samuel Morse was an American guy that after having established his reputation as a portrait painter, in his middle age Morse contributed to the invention of a single-wire telegraph.

https://www.youtube.com/watch?v=wGs57VQHt7M – This is a video of how the telegraph works.

Esta entrada fue publicada en 4AC2016, History. Guarda el enlace permanente.

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