reply to post by Serizawa
Well, it depends on the materials around and we don't know which one. We must also take into consideration shape, density and volume of said
material.
Theoretically, it could be the quartz naturally present in the rocks or concrete in a building. Quartz resonating proprieties are widely used in
everyday objects, so that alone could not be the reason behind these phenomenon. But maybe, if we think of all the tiny quartz crystal combined, a
certain configuration could act as a memory.
Is it possible ?