Electricity is not the only connection shared by Thomas Edison and Spencer Trask. Although it pales besides the light bulb and first electric grid, Trask invested in another renowned and lasting inventions of Edison.
On February 19, 1878 — 132 years ago tomorrow — Thomas Edison received a patent for the phonograph, the device that first made hearing music, sounds, and the human voice across history possible.
In November of 1877, Edison gave mechanic John Kruesi a sketch of a cylinder wrapped in tinfoil with two diaphragms, each with a stylus. His best hope was that it might record just one word, but what occurred was that now monumental recording of ‘Mary Had a Little Lamb’ in Edison’s own voice. While Edison set out to use the phonograph to keep a record of certain cultural milestones, such as his recording of Alfred Lord Tennyson reciting ‘Charge of the Light Brigade’, he envisioned a wide set of uses for the devise: dictation in letter writing, audiobooks, educational instruction, music reproduction, family record and remembrances, audioclocks, preservation of important speeches and speakers, and voicemail.
“Of all the writers’ inventions, none has commanded such profound and earnest attention throughout the civilized world as has the phonograph.”
Thomas Edison, North American Review, June 1878
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