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jan 1, 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.

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Industrielle revolusjon

ByÅsa Randen Hagemo
22 Oct 2018
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Date:

jan 1, 1835
Now
~ 190 years ago
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