universal force-relationship

convertibility laws

reversibility principles

They are introduced as the highly integrative principles of physical sciences, especially, the natural science of physics and theoretical physics, as the most fundamental laws of nature and the universe (Новик И.Б., Абдуллаев А.Ш. "Введение в информационный мир", М. Наука, 1991, in Russian; see Supplement: Encyclopedic Knowledge Base in Physics).

As a result, the interactions of natural forces are formulated in the new terms of force-relationships, covering the current constructs forces, force lines, force-interactions, or force-fields. Forces are constructed as symmetrical force-relations, forceful interrelationships, efficient interrelations, powerful interrelationships, energetic interconnections, effective mapping, or forcible interactions producing physical changes and effects.

Natural forces are engines of the universe and being studied much less than the whole subject deserves. It is forces, their actions and interactions, determine the structure of the universe at all its levels, microscopic or macroscopic or cosmological. We know little about forces, their nature and properties, kinds and laws and relationships, some even hypothesizing that in unified field theories “all forces are fictitious”, or pseudo forces. Most references here traditionally go to the use of Newton's Second Law for a definition of force, which was disparaged as essentially a mathematical truism by notable physicists, philosophers and mathematicians looking for a more substantive definition of the concept of force, as the principle of all physical science.

Still, applying symmetry to forces, the third law pinpointed the key feature of forces: all forces are interactions between different bodies. That means that they have the nature of interrelationships of power, efficiency and energy, what could be generalized as a symmetrical force-relationship. In other words, there is no such thing as a unidirectional force or a force that acts on only one body, in one progressive direction. Whenever a body exerts a force F on another body, the other one exerts a force −F on the first body, now in the regressive direction. F and −F are equal in magnitude BUT opposite in direction, having both magnitude and direction as vector quantities.

This action-reaction law, with F called the direct "action", or progressive force, and −F the reverse "reaction", retrogressive or inverse force, is making a decisive inductive case for the most fundamental truth about nature.

The truth of natural causes or forces is that the action and the reaction relationships are universal phenomena applied to all physical interactions and forces, fundamental and non-fundamental.

The Diversity and Unity of the Force-Interaction: the ToE as the Holy Grail of New Physics

All forces are hierarchically related, making up the natural hierarchy of forces, forces, force lines and force fields, topped by the super symmetry force-interaction, a single universal force of coming Theory of Everything (ToE), or Final Theory, Ultimate Theory, or Master Theory, a single, all-encompassing, consistent and complete theoretical framework of physics linking together all the physical properties and phenomena of the universe.

At present, there is no theory of everything that includes the standard model of particle physics and general relativity, such as to calculate the fine structure constant and the mass of the electron, hoping that a deeper search for new particles and dark force at the large particle accelerators could provide critical input for the ToE. There are a number of candidate theories to unite general relativity and quantum field theory, designed as the working theories of quantum gravity: string theory, superstring theory, M-theory, loop quantum gravity, causal fermion systems, and causal sets.