On this day in 1877, American inventor Thomas Alva Edison made perhaps his most original discovery, the phonograph, and his early recordings were indentations embossed into a sheet of tinfoil by a vibrating stylus.
On this day in 1877, American inventor Thomas Alva Edison made perhaps his most original discovery, the phonograph, and his early recordings were indentations embossed into a sheet of tinfoil by a vibrating stylus.
On this day in 1877, American inventor Thomas Alva Edison made perhaps his most original discovery, the phonograph, and his early recordings were indentations embossed into a sheet of tinfoil by a vibrating stylus.
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