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 ...

Through his job on the railroad, Edison was exposed to both. He acquired an early interest in telegraphy and took lessons informally at telegraph ... Once the basic principle of the phonograph was ...

The two American innovators – Thomas Edison, the inventor of both the electric light bulb and the phonograph ... Dating back to the early 1900s, the historic estates are now on display for ...