(Just to be clear this is not a pseudoscience video, just a video about the piezoelectricity)
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The most magical thing a crystal does for me on a daily basis is keep track of time.
They use them in high pressure fuel injectors as well, which is pretty dang cool.
And BBQ starters.
Casio gang!
The piezoelectric properties of quartz and their uses for watches are actually mentioned in the video
