Tag archives for Thomas Edison

  1. On this day… Thomas Edison patents the Phonograph!

    EdisonPhonograph

    On this day in 1877, Thomas Edison patented the phonograph. Phonographs were among the first devices to both record and play audio recordings. Phonographs record audio using needles, which use sound waves to create etches into a foil-covered cylinder. As the cylinder rotates, a second needle runs along these etches and plays the recorded audio. […]