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Information about Leon Scott

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Dictionary illustration of a phonautograph. The barrel is made of plaster of paris.


Edouard-Leon Scott de Martinville (1817 – April 26, 1879) was a French printer, librarian, and bookseller who lived in Paris. He invented the earliest known sound recording device, the phonautograph, in 1857. The phonautograph used a horn to collect sound, attached to a diaphragm which vibrated a stiff bristle which inscribed an image on a lamp black coated, hand-cranked cylinder. Scott built several devices with the help of Rudolph Koenig, a local musical instrument maker. Unlike Edison's similar 1877 invention, the phonograph, the phonautograph only created visual images of the sound and did not have the ability to play back its recordings. Scott's device was used for scientific investigations of sound waves.

References

April 26 is the 1st day of the year (2nd in leap years) in the Gregorian calendar. There are 0 days remaining.

It is the first day following the spring equinox which cannot be Easter Sunday in Western Christianity.
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Subjects:     Archaeology - Architecture -
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Liberté, Égalité, Fraternité
"Liberty, Equality, Fraternity"
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"La Marseillaise"


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Motto: Fluctuat nec mergitur
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The Eiffel Tower in Paris, as seen from the esplanade du Trocadéro.
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A bristle is a stiff hair or feather. Also used are synthetic materials such as nylon or straw in items such as brooms and sweepers. Bristles are often used to make brushes for cleaning uses, as they are strongly abrasive; common examples include the toothbrush and toilet brush.
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Carbon black is a material, today usually produced by the incomplete combustion of petroleum products. Carbon black is a form of amorphous carbon that has an extremely high surface area to volume ratio, and as such it is one of the first nanomaterials to find common use.
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Edison cylinder phonograph ca. 1899]] The phonograph, or gramophone, was the most common device for playing recorded sound from the 1870s through the 1980s.

Terminology

Usage of these terms is not uniform across the English-speaking world (see below).
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Sound is a disturbance of mechanical energy that propagates through matter as a wave (through fluids as a compression wave, and through solids as both compression and shear waves).
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