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The uses of piezoelectric disks

  1. Jan 9, 2013 #1
    can small piezoelectric disks 3.7x3.7 cm inside a tube with a buzzer at the other end be able to power an LED
     
  2. jcsd
  3. Jan 9, 2013 #2

    jedishrfu

    Staff: Mentor

    Here's some discussion on piezo-electricty that discusses usages:

    http://en.wikipedia.org/wiki/Piezoelectricity

    One such usage was to harvest the electricity of walking with special military boots to get back 1 to 2 watts of electricity but the boots were too uncomfortable to wear.
     
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