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1 fev 1809 ano - Создание электрохимического телеграфа

Descrição:

Немецкий учёный Самуил Томас Земмеринг построил и испытал электрохимический телеграф на пузырьках газа.

Adicionado na linha do tempo:

Создание телеграфа и телефона

ByОльга
10 nov 2019
0
0
428

Data:

1 fev 1809 ano
Agora
~ 216 years ago
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