26 sett 1949 anni - Gramophone Records
Descrizione:
Emile Berliner invented the first records used by the gramophone and were originally made of glass. A spiral groove with sound information was etched into the flat record and the record was rotated on the gramophone. The "arm" of the gramophone had a needle that read the grooves in the record by vibration and the vibrations made the sound.
Aggiunto al nastro di tempo:
New timeline
Data:
Immagini: