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30 set 1835 ano - Telegrafen kom

Descrição:

Det var Samuel Morse (1791-1872) som oppfant telegrafen. Det fungerte ved at elektromagnestiske signaler ble sendt over et ledningsnett fra et sted til et annet.

Adicionado na linha do tempo:

Den industrielle revolusjon

ByHeidi Pettersen
28 fev 2019
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0
549

Data:

30 set 1835 ano
Agora
~ 190 years ago
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