Volume in nature is a foundation of present-day physics.

The volume dynamics, VD, is implied by evident properties:

invariance of the speed of light and zero rest mass of volume



The VD includes:



the existence and reality of volume portions, VPs

change tensors of VPs, including electromagnetic waves

the differential equation describing change tensors, form of wave packets, formation and propagation of VPs

real quantities are identified via the Hacking criterion



The VD implies and explains present-day physics, e. g.

gravity and transmission of gravitational interaction

curvature of spacetime

general relativity as a semiclassical and averaging approximation

universal formation of quanta, a generalized Schrödinger equation, the postulates of quantum physics

the Schrödinger equation as a nonrelativistic approximation

an improved and generalized version of quantum field theory, including nonlocality & causality, without infinity
as expected, as real volume inside the light horizon cannot cause a real infinity



The VD implies, explains and clarifies properties of space, e. g.

VD implies density of volume in our heterogeneous universe

VD provides the time evolution of the Hubble constant (front cover), this solves the Hubble tension

real VPs represent the wave function and its generalization

VD clarifies real zeropointoscillations, real Casimir force and real VPs and solves the cosmological constant problem


causality with nonlocality is clarified

formation of matter has been derived

the era of cosmic inflation has been derived and clarified

the elementary charge, the electroweak couplings and many elementary particles have been derived and explained

the cosmological parameters have been derived fundamentally



Thus, the VD clarifies, generalizes and unifies present-day physics.



All results are in precise accordance with observation. Thereby, no fit has been executed, and no hypothesis has been introduced.



We derive all findings in a systematic, clear & smooth manner. We summarize our results by definitions, propositions & theorems. We are classes from grade 10 or higher, courses, research clubs, enthusiasts, observers, experimentalists, mathematicians, scientists, researchers