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The Visual Microphone

  1. https://www.youtube.com/watch?v=FKXOucXB4a8
    2 people like this.
  2. jcsd
  3. Borek

    Staff: Mentor

  4. atyy

    atyy 10,134
    Science Advisor

    Wikipedia gives some history: http://en.m.wikipedia.org/wiki/Laser_microphone
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