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The Evolution of Edison's Phonograph After many failed attempts at producing a contraption that could record sound so as to be listened to afterwards, Thomas A. Edison, an inventor from Menlo Park, New Jersey, created the first working phonograph. Before Edison invented a working sound recorder, Charles Cros, a French Scientist, had drawn up a plan very similar to Edison's phonograph. His experiment never went beyond the planning stage. The main sound recording component of the phonograph was a metal cylinder wrapped with tinfoil. Sound was recorded when someone spoke into the mouth piece causing a stylus to vibrate and make dents in the tinfoil. To play the sound back, this process was simply reversed. The stylus would be repositioned so that the stylus would be pushing into the grooves causing the same vibrations to occur. These vibrations would be amplified and the sound would be reproduced. This type of recording...

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