Today it's a special, a VERY special day for yours truly!!!
Thanking Alan Morse Davis and his sharing.
... DL it, folks... and save it in your hard-disk for posterity!
Our Cutters and their work • EDISON 1878 DEMONSTRATION TINFOIL PHONOGRAPH
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this is where sound recording began, the phonautograph of 1857 could record
sound it could not reproduce it, a strictly visual representation of
modulated ...
1 hour ago
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