Wikipedia contributors. (2024, January 31). Fluorite. In Wikipedia, The Free Encyclopedia. Retrieved February 21, 2024, from https://en.wikipedia.org/w/index.php?title=Fluorite&oldid=1201428553
Bentov cites as an example “repeated riding in a car whose suspension and seat combination produce that range of vibrations, or being exposed for long periods of time to these frequencies caused, for instance, by an air conditioning duct.”