That changed in 1877 when Thomas Edison unveiled his phonograph ... “The three-minute pop song is basically an invention of the phonograph,” says Mark Katz, a professor of music at the ...

If you think of records as platters, you are of a certain age. If you don’t remember records at all, you are even younger.

Thomas Alva Edison is an unparalleled figure in the history of ... communication through the telegraph and telephone led to his first major invention: the phonograph. After investigating acoustic ...

The two American innovators – Thomas Edison, the inventor of both the electric light bulb and the phonograph, and Henry Ford, pioneer of the automobile – were good friends who built their ...

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 ...

American Chemical Society: Chemistry for Life.