Category: Thomas Edison
-
American Inventor Thomas Edison Demonstrated His Hand-Cranked Phonograph for the First Time. November 29, 1877.
Image: Photograph of Edison with his phonograph (2nd model), taken in Mathew Brady’s Washington, D.C. studio in April 1878. (Public Domain) On this day in history, November 29, 1877, American inventor Thomas Edison demonstrated his hand-cranked phonograph for the first time. He built a machine that converted the vibrations produced by speaking into grooves on…
History Daily With Francis Chappell Black 