1 janv. 1857 - Phonautograph
Description:
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.Ajouté au bande de temps:
Date:
1 janv. 1857
Maintenaint
~ Il y a 168 ans