Sujet
Making recording on Emile Berliner's Gramophone
Légende
Making recording on Emile Berliner's Gramophone (1887). Speaking into tube produced trace on glass disc (A) coated with lamp-black. D, electric motor, E its battery. Trace fixed by varnishing, then copied in metal photographically. From "Cassell's Family
Date
1887
Crédit
Photo12/Ann Ronan Picture Library
Notre référence
ARP07103_460000465
Licence
Droits gérés
Format disponible
29.8Mo (1.9Mo) / 24.9cm x 30.0cm / 2937 x 3543 (300dpi)