When we think of old communications technology, many of us picture 10Base-2 coax connectors or maybe 2400 baud modems. But what about wax-covered cardboard discs? The Smithsonian discovered and digitized such a disc containing the voice of Alexander Graham Bell saying, "Hear my voice, Alexander Graham Bell." Now you can hear what the inventor of the telephone sounded like on 15 April 1885. follow link
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Alexander Graham Bell Speaks from Wax Recording