Are the particles in the atom's nucleus made of the same substance as the space medium? And is the nucleus then an object or is it just a pit in space? Because if particles are then objects made of space medium, what's to prevent that medium from mixing in with the medium it sitting in? it s like mixing water with water. If particle's of matter were made of space medium AND sitting in it there would have to be a wall around the particle's to prevent them from mixing together. That seems impossible if the only thing that exists is the space medium and density's in it.
Waves are a density spreading out in a medium. For light and possibly gravity waves, that medium is space or the space medium in substitute of space time. time is a dimension that is related to vacuum density changes and as such is related to the speed of light. It is thought that time dilation is related to the electron which is probably bouncing around at the speed of light. When an outside gravity field to the nucleus puts pressure in on it, time slows down, which is probably pressure on the electron shell that freezes it.
When you get a rational answer let us know, in the meantime I'll file this under Things I Don't Need to Worry Over