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1 jan 1857 ano - Phonautograph

Descrição:

In 1857, the Phonautograph was invented. The Phonautograph is the earlies known device for recording sound. It was invented by Édouard-Léon Scott de Martinville who used it in an experiment so that he could see sound.

Adicionado na linha do tempo:

Data:

1 jan 1857 ano
Agora
~ 168 years ago

Imagens:

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