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: Over 150 years later, scientists at the Lawrence Berkeley National Laboratory used high-resolution digital imaging to scan these soot-covered papers. Using virtual playback software, they successfully "played" a recording from April 9, 1860.

: In 1857, Scott de Martinville patented the "phonautograph," a device inspired by the mechanics of the human ear. It used a funnel to guide sound toward a vibrating membrane, which then moved a stylus to etch visual sound waves onto paper blackened by oil lamp soot. _ new videomp4

If you are looking for specific types of informative video stories, popular categories include: : Over 150 years later, scientists at the

The history of recorded sound is an informative story that highlights how inventions can be lost to time and later rediscovered through modern technology. The Earliest Recording: Édouard-Léon Scott de Martinville It used a funnel to guide sound toward

: Scott de Martinville believed that these "squiggles" could eventually be read like text. He did not intend to play the sound back; he wanted to create a visual record of speech and music.

: Videos from creators like Dare to do motivation often use short parables to teach life lessons.

: The recording was a snippet of the French folk song "Au Clair de la Lune". Initially, it sounded like a young girl, but further analysis revealed the recording was played too fast. When slowed down, it was revealed to be the low, ghostly voice of Scott de Martinville himself. Popular Educational & Informative Video Content