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1 ene 1887 año - Emission - réception ondes radio
Descripción:
Heinrich Hertz (sur distance de 20 mètres)
Añadido al timeline:
Les Evolutions Technologiques - la communication à distance
By
Raphael Courouble
20 mar 2021
2
0
307
fecha:
1 ene 1887 año
Ahora mismo
~ 138 years ago
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