Bill Gurstelle shows you how to make a tuning fork from a piece of aluminum in this video complementing his column in MAKE Volume 29.
https://makezine.com/29
Subscribers can read Bill’s article here: http://www.make-digital.com/make/vol29/?pg=174&pm=2&u1=friend
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Subscribe to the MAKE Magazine Extras podcast in iTunes, download the m4v video directly, or watch it on YouTube or Vimeo.
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