The Century-Old Machine That Gave Us MP3s and JPEGs
https://www-newz.blogspot.com/2014/11/the-century-old-machine-that-gave-us.html
Back in 1894, Olaus Henrici invented a machine called the Harmonic Analyzer. Way ahead of its time, it could pick out all the individual frequencies that make up complex sound waves—a technique we now rely on for everything from compressed audio to digital images.
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