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1 janv. 1835 - Telegrafen

Description:

Telegrafen ble oppfunnet av amerikaneren Samuel Morse i 1835. Den fungerte ved at elektromagnetiske signaler ble sendt over et ledningsnett. Litt som en telefon sendte de koder eller meldinger til hverandre ved bruk av morse.

Ajouté au bande de temps:

Industrielle revolusjon

ByÅsa Randen Hagemo
22 oct. 2018
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0
369

Date:

1 janv. 1835
Maintenaint
~ Il y a 190 ans
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