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1 янв 1900 г. - De Forest begins dreaming

Описание:

He wants to use electrowaves rather than wires to transmit sound

Добавлено на ленту времени:

Sound Timeline

ByKaroline Herkamp

23 апр 2021

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248

Дата:

1 янв 1900 г.

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~ 125 г назад

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