Terminal velocity and shock wave densification in space

Evaporation and condensation are physical attributes of space. They relate directly to medium density and thus to the abstract concept energy density.

Rotational energy is the little understood fascinating motion process that deliver the variations in density observed in natural systems.

It also naturally explains regionalisation of space into fractal patternation and discontinuity at the quantum level. Quanta as discrete energies are partially explained, as a full explanation requires the observer and the measuring tool to be included.