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Thor's Hammer

  1. Oct 14, 2015 #1

    jedishrfu

    Staff: Mentor

  2. jcsd
  3. Oct 14, 2015 #2

    berkeman

    User Avatar

    Staff: Mentor

    LOL. Must-find-the-hidden-switch...
     
  4. Oct 14, 2015 #3

    jedishrfu

    Staff: Mentor

    Its a finger print sensor.
     
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