A pleasant accidental discovery when working on this piece of granite. This is when I first seriously started to suspect that granite was the source of the Egyptian Alternating Current in their power grid. Before this I was working under the idea of just direct current, but had so many issues with the idea that just didn't square with a lot of what I was seeing in Egyptian Hieroglyphs.
I mention this process specifically in this post:
https://steemit.com/egypt/@fox-hotep/uncovering-ancient-tech-from-egyptian-lore
To recap: The piezoelectric effect is a one of the properties of quartz crystal (along with capacitance, inductance, and resistance) wherein a physical force applied to the structure will generate current. If compress the electrons flow one way, if stretched the electrons flow the other way. Thus, a constant impingment will result in Alternating Currents.
Now that we know this principle we can take it farther.
