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Thomas Alva Edison is an unparalleled figure in ... His next inventive turn after the introduction of the phonograph took an entirely different direction: an electric lighting system. In 1878, after ...
That changed in 1877 when Thomas Edison unveiled his phonograph ... last words of dying persons.” But in 1878 he made a prediction: “The phonograph will undoubtedly be liberally devoted ...
But there was a time when audio records were not flat — they were drums, which was how the original Edison phonograph worked. [Our Own Devices] did a video earlier showing one of these devices ...
On December 7, 1877 Thomas Edison demonstrated his phonograph at the New York City offices of the nation's leading technical weekly publication, Scientific American. The following report set off ...
In June of 1878, a system of electronic bells and telephones ... Bell on Development of Telephone Smithsonian Archives - History Div Thomas Edison Demonstrates Telephone and Phonograph to National ...