Home >
Thomas Edison and his phonograph...
Thomas Edison and his phonograph...
Item # 705578
July 06, 1878
SCIENTIFIC AMERICAN, New York, July 6, 1878
* Inventor Thomas A. Edison
* Phonograph invention
The prime content is the nice one-third pg. illustration captioned: "The Phonograph and Its Inventor, Mr. Thomas A. Edison." showing a young Edison with his newly invented & crude looking device which was his phonograph. There is a related article on the same page headed: "Mr. Thomas A. Edison" which includes: "...Every one is acquainted with his telephone, phonograph & other remarkable inventions...Mr. Edison is above the medium height & although he is only 31 years old, his iron gray hair & thoughtful eye show the effects of continued study. He is genial, liberal, and entirely unostentatious. His mind, day and night, is on his projects..." with more.
The front page has a large illustration captioned: "Electrical Indicator for Showing the Rotation of the Earth" with a related article. Further to the back of the issue is over a full page article headed: "Edison's Telephonic Researches" which includes 11 illustrations.
Sixteen pages, minor chipping to a lower corner, very nice condition.
background: In the July 6, 1878 issue of Scientific American, the phonograph is discussed as Thomas Edison’s groundbreaking invention for recording and reproducing sound. The article explains how Edison’s earlier telephonic experiments led him to realize that vibrations of a diaphragm could be mechanically captured. Using a tin‑foil‑covered cylinder, the phonograph could emboss these sound vibrations as grooves on the foil; when the cylinder was rotated and a stylus retraced the grooves, the original sound was reproduced. This early phonograph, hand‑cranked and rudimentary, marked the first successful device to both record and playback human speech, demonstrating a completely new way to preserve audio, and laying the foundation for modern sound recording technology.
Category: Post-Civil War
Available Now
$142.00
