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18 abr 1820 ano - Первый электромагнитный телеграф
Descrição:
Первый электромагнитный телеграф изобрел великий физик Андре-Мари Ампер в 1820 году.
Adicionado na linha do tempo:
New timeline
By
Пиневская Влада
6 nov 2018
0
0
204
Data:
18 abr 1820 ano
Agora
~ 204 years ago
Imagens:
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