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The Quartz Watch video is here:    • How a quartz watch works - its heart ...  

Certain crystals, like quartz will produce a voltage when hit. It's all to do with the arrangement of atoms and charge in the lattice. It's used in lots of things like piezo lighters, sensors, speakers and oscillators for timekeeping.

Animations by Dominic Burgess:    / @domburgess  

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