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who invented gramophone?
1887 - Emile Berliner Invents The Gramophone And Records
On November 8 1887, Emile Berliner, a German immigrant working in Washington D.C., patented a successful system of sound recording. Berliner was the first inventor to stop recording on cylinders and start recording on flat disks or records.

The first records were made of glass, later zinc, and eventually plastic. A spiral groove with sound information was etched into the flat record. The record was rotated on the gramophone. The "arm" of the gramophone held a needle that read the grooves in the record by vibration and transmitting the information to the gramophone speaker.


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