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Originally posted by Bedlam
Finally, the material has to be brittle - that is, while it returns the energy of deformation efficiently, it will also fail catastrophically for even small total deformations.
Originally posted by apcbm4I also know that quartz is used for the electrical resonance like in LC circuits, so I'm pretty certain there was something to Tesla's mining device.
I know there is some attenuation of a signal through the earth that would alter the resonant frequency of a signal, making it difficult to use resonance to shake apart quartz, but any thoughts on this device?