The specimen below is the first time humans recorded a voice. It is the voice of Leon Scott archived with the Photoautograph autographic stenographer in 1857. Because of his invention of Voice calligraphy today we can play back his voice. Read more: https://qr.ae/TW7tOV pic.twitter.com/kXsAk3JNH5
6:46 AM - 11 Mar 2019
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