Principle of General Equivalence

Definition

The principle of General Equivalence

In the physical domain of Reality, the Principle of General Equivalence describes the equivalence between some of the fundamental physical quantities, which characterize the manifestation of the Elementary Action in its basic mode that we call Perturbation, and, indirectly and consequently, among some related derived physical quantities, which can be considered the expression of those fundamental physical quantities at more complex levels of Reality (as the level of Information, of the Structures of Information, of Material Forms).

The most extended principle of equivalence operates in the physical world, in the real factory of space-time. At this level, the most elementary level of Reality, where the occurrence of the Elementary Events represent the most elementary form of Existence, we can find this fundamental equivalence that give us an explanation of the deep nature and connection of some basic phenomena and some basic quantity/constant of Nature.

This principle states that the nature of the fundamental phenomena and the associated physical quantities related to what we call mass and mass density, is deeply connected, "equivalent" for instance, to other important aspects of the elementary level of Reality, related to the Dynamics of the Sources (the Fundamental Force and the Elementary Field) and the Dynamics of Action (the Elementary Action and its modes of expressions:

• the amount of Perturbation, the density of the elementary perturbations (inhomogeneities/gradients in the distributions of the quantum fluctuations of the Elementary Field that we call Elementary Events) that characterize the Elementary Action,
• mass density of space-time domains, that characterize many physical entities / quantities that we observe or suppose as basic constituents of the physical world: dark matter, dark energy, ordinary matter,
• space-time curvature of the metrics, that determine the dimensions and the geometric properties of physical reality,
• temperature of the Elementary Field or the temperature of space-time (see the phenomena called CMB - Cosmic Microwave Background),
• velocity of propagation of information/causality in the Elementary Field or speed of light in the void/vacuum.

The principle of General Equivalence - Table

These aspects are equivalent and have a unique physical, natural, basis. In this perspective, we can say that mass does not curve space-time. Mass “is” (can be seen, or described, is the same thing of) the curvature of space-time. And not only, as above mentioned. We call this the Principle of General Equivalence, a specification of the Principle of Equivalence.

This principle incorporates and extends the principle of equivalence proposed by Einstein. In General Relativity, the equivalence principle states the equivalence of the gravitational and inertial mass. The gravitational "force" that is experienced locally on a massive body as the Earth is the same as the pseudo-force experienced by an observer in a non-inertial (accelerated) frame of reference:

(Inertial mass) * (Acceleration) = (Intensity of the gravitational field) * (Gravitational mass).

Common definition

There are two versions of the equivalence principle, both due to Albert Einstein:

• the strong version states that in any gravitational field, it is always possible to choose a reference system with respect to which it is always possible to choose a neighborhood of a point where the effects of acceleration due to the gravitational field are zero;
• the weak one asserts that the inertial mass, that is the intrinsic property of the material body to oppose the variations of motion, and the gravitational mass, which represents the property of a body to be the source and to undergo the influence of a gravitational field, are numerically equal. (Link to Wikipedia page: Equivalence_principle).

(Link to Wikipedia page: Equivalence principle).

Description

• Principle of Equivalence
• Principles
• Principle of Variation
• Principle of Propagation
• Principle of Conservation
• Other Principles of Evolutionary Dynamics
• Principle of Unity
• Principle of Connection
• Principle of Individuation
• Principle of Relation
• Principle of Evolution
• Physical Principles
• Fundamental Physical Principles
• Principle of Uncertainty
• Principle of Action and Reaction
• Principle of Least Action
• Principle of Locality
• Principle of Quantization
• Principle of Relation in Physical Reality
• Cognitive Principles
• Metacognitive Principles

Links to the related sections of the TFNR Paper

• TFNR - 2.1 The Principle of Reality
• TFNR - 2.1 The Principles of Reality
• TFNR - 2.4 The principle of individuation
• TFNR - 2.4 The fundamental principles of the Elementary Dynamics (Principles of Action)
• TFNR - 2.4 Recipe for constructing a Reality
• TFNR - 2.4 From the fundamental principles to the laws of nature
• TFNR - 7.3 The fundamental principles of the dynamics of the Elementary Field
• TFNR - 7.3.1 The principle of Uncertainty
• TFNR - 7.3.2 The principle of Action and Reaction)
• TFNR - 7.3.3 The principle of Minimum Action
• TFNR - 7.3.4 The principle of Relation
• TFNR - 7.3.5 The principle of General Equivalence

Classification

• Topic id: t_g_eq_principle
• Belongs to the class: Other Physical Principles
• Has as instances:
• Belongs to the groups: Principles
• Semantic Map: ekm|map=m_ph_dynamics&topic=t_g_eq_principle
• Semantic Map Test Version: ekmt|map=m_ph_dynamics&topic=t_g_eq_principle