de Martinville patents
1857 Édouard-Léon Scott
de Martinville patented
his Phonautograph, the earliest known device for recording sound.
macaron cookie with a glass of French wine.
Phonautograph, 1859 with barrel made of plaster of paris
Full more information
see the Wikipedia Phonautograph
article which begins:
phonautograph is the earliest known device for recording sound. Previously,
tracings had been obtained of the sound-producing vibratory motions
of tuning forks and other objects by physical contact with them, but
not of actual sound waves as they propagated through air or other
media. Invented by Frenchman Édouard-Léon Scott de Martinville, it
was patented on March 25, 1857..."
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