The quantum fields are current in each individual position in spacetime, even in vacuum locations. When you request "what essentially vibrates", I believe the medium you're looking for are these quantum fields. Functional cookies assistance to perform sure functionalities like sharing the written content of the website on social media https://what-is-a-vibration-isola03579.thechapblog.com/28244075/a-secret-weapon-for-vibration-isolators-for-commercial-laundromat