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This is great explanation of how the piezoelectric effect of quartz is used to keep accurate time. via Reddit

The amazing everyday wristwatch: We never think about it, but only because engineers have made it so reliable and durable that we don’t need to. At its heart lies a tiny tuning fork made of the mineral quartz. In this video Bill takes apart a cheap watch and shows extreme close-ups of the actually tunings fork. He explains how the piezoelectric effect of quartz lies at the heart of the watch’s
operation.

Marc de Vinck

I’m currently working full time as the Dexter F. Baker Professor of Practice in Creativity in the Masters of Engineering in Technical Entrepreneurship Program at Lehigh University. I’m also an avid product designer, kit maker, author, father, tinkerer, and member of the MAKE Technical Advisory board.


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Comments

  1. druck says:

    It is real thus … a wristwatch belongs thus to our everyday use that we do not think at all about the function. The video with the extreme close-ups is the more interesting for me. I have never thought before about a the piezoelectric effect of quartz lies at the heart of the watch’s operation.