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1 jan 1887 ano - Emission - réception ondes radio

Descrição:

Heinrich Hertz (sur distance de 20 mètres)

Adicionado na linha do tempo:

Les Evolutions Technologiques - la communication à distance

ByRaphael Courouble
20 mar 2021
2
0
307

Data:

1 jan 1887 ano
Agora
~ 138 years ago
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