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1 giug 1887 anni - émission et réception d'ondes radios de Heinrich Hertz

Descrizione:

Il réussi une émission d'ondes radios sur 20 mètres pour la première fois

Aggiunto al nastro di tempo:

frise chronologique des évolutions technologiques

30 mar 2021

1

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168

Data:

1 giug 1887 anni

Adesso

~ 138 years ago

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