The graphic above attempts to show expanded orbits of oscillation of the rarefied or dispersed phase of a vibration in air as also the contracted orbits of oscillation. The contractions and expansions are not caused by impact from outside bombardment (particle bouncing against particle) but by sympathetically induced periodic or alternate harmonicity and inharmonicity from within (from center to center) along sympathetic lines of neutrality; i.e., every body everywhere is quantum entangled (sympathetically linked) to some degree.

See Also

power of compression
Bjerknes Effect
Figure 9.13 - Wave Flow as function of Periodic Attraction and Dispersion