The man known by most as the inventor of the telephone, Alexander Graham Bell, recorded himself 128 years ago in his laboratory in Washington, DC. Bell’s voice was recorded on an experimental wax disk, but was believed unplayable. The disk was later donated to the Smithsonian Institution’s collection.
Luckily, the Lawrence Berkley National Laboratory developed a 3D modelling technique that was able to retrieve the lost audio by creating a replica of the original disk, and in 2011 researchers from the Library of Congress started using the technology that the researchers at Berkley had created.
The four and a half minute recording displays Bell counting in various increments and ends off with “In witness whereof hear my voice Alexander Graham Bell.”
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