1 jan 1877 ano - phonograph
Descrição:
The phonograph was invented in 1877 by Thomas Edison. The phonograph recorded sound on to a tin foil sheet that was wrapped around a rotating cylinder. In the 1880s, several improvements were made to the phonograph. This includes the use of wax coated cardboard cylinders, and a stylus that moved from side to side and created a zig zag groove around the record. In the 1890s, Emile Berliner initiated the transition from cylinders on a phonograph to flat disks.
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New timeline unit 5
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