I’m Positive You Will Not Know What This Is. Go Ahead And Prove Me Wrong (If You Can)

A phonograph, in its later forms also called a gramophone (as a trademark since 1887, as a generic name in the UK since 1910) or since the 1940s called a record player, or more recently a turntable,[a] is a device for the mechanical and analogue recording and reproduction of sound.

The sound vibration waveforms are recorded as corresponding physical deviations of a spiral groove engraved, etched, incised, or impressed into the surface of a rotating cylinder or disc, called a “record”.


Source: worvd.com

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