A Rationale for Gravitation
Gravity is matter's memory it once was light
John A. Gowan
(Revised April, 2008)
http://www.people.cornell.edu/pages/jag8/index.html
Why does gravity exist as a force in the Cosmos? What is gravity's rationale and origin in the context of conservation law? These and other questions concerning gravitation are addressed in various papers on my website (and linked below). Here I give only a brief summary of my major conclusions. (See also: "An Introduction to Gravitation".)
Gravity serves two conservation laws - entropy and symmetry - (entropy immediately and symmetry eventually); because these in turn serve causality and energy conservation, gravity ultimately serves all four. (See: "The Tetrahedron Model of Light and Conservation Law".) Like the other fundamental forces of physics, gravity is characterized by a charge that originates as a symmetry debt of light (Noether's Theorem). Light has perfect symmetry, bearing no charges of any kind, but when light (free energy) is converted to matter or any form of bound energy (including simply momentum or kinetic energy), light acquires various charges as a bound form of energy. The charges of matter are the symmetry debts of light; these charges include spin and gravitation, among others. (See: "Symmetry Principles of the Unified Field Theory".)
In the case of gravity, the symmetry debt or charge is "location" or gravitational charge, and the broken symmetry of light represented by "location" charge is the "non-local" distributional symmetry of light's energy everywhere, simultaneously, throughout spacetime. As Einstein discovered, in its own reference frame, moving freely in vacuum at "velocity c", light's "clock" is stopped and meter sticks shrink to nothing in the direction of propagation. Hence in its own reference frame, light has forever to go nowhere, resulting in light's "infinite velocity" and "non-local" symmetric energy state. Einstein mathematically characterized light's non-local symmetric energy state in his equation of the spacetime "Interval": light's "Interval" = zero. "Noether's Theorem" states that the symmetries of a multicomponent field (such as the electromagnetic field or the metric field of spacetime) must be conserved, and so it is to conserve light's non-local symmetric energy state and the consequent equitable (symmetric) distribution of light's energy throughout spacetime that the gravitational force arises. (See: "A Description of Gravitation".)
We see this conservation argument expressed physically in two ways. The first is that the gravitational charge "locates" the undistributed mass-energy (E = mcc) of matter in spacetime, specifying in terms of inertial or gravitational force the 4-dimensional position of matter, including matter's total mass and density, all physical parameters reflecting matter's asymmetric distribution (unlike light, matter has no (net) intrinsic spatial motion and matter's "Interval" is always greater than zero). Secondly, and clinching the argument, gravity acts to restore light's distributional symmetry through the conversion of bound to free energy, as exampled by our Sun and ultimately by Hawking's "quantum radiance" of black holes. This is the conservation rationale for gravity from the point of view of symmetry, as required by "Noether's Theorem". (See: "Gravity, Entropy, and Thermodynamics.")
But gravity has a second conservation role, intimately related to the first, which comes about because the active principle of the gravitational "location" charge is time. Light has no time dimension but matter does, and matter's time dimension is conferred upon it and created by matter's gravitational field. Gravity creates the time dimension of matter by the annihilation of space and the extraction of a metrically equivalent temporal residue. The intrinsic motion of the time dimension so created marches off into history, dragging space along behind it; space self-annihilates at the point-like entrance to the historical domain, creating another temporal residue. Gravity and time induce each other in an endless entropic cycle. A gravitational field is the spatial consequence of the intrinsic motion of time. (See: "The Conversion of Space to Time".)
The intrinsic motion of matter's time dimension serves as the primordial form of matter's entropy drive, so the entropy drive of matter (time) is a gravitational byproduct of the conservation of light's distributional symmetry. In effect, the intrinsic motion of light (the primordial form of the entropy drive of free energy) supplies the energy to produce the intrinsic motion of time (the primordial form of the entropy drive of bound energy). The spatial expansion of the Cosmos is reduced in consequence of the gravitational conversion of space to time, which funds the historical expansion. (See: "Spatial vs Temporal Entropy".)
Here we see gravity in its second or entropy conservation/conversion role, producing the time dimension and historical entropy drive of matter via the annihilation of space. Gravity functions as the mediating force between the primordial forms of the entropy drives of free and bound energy, converting one to the other in either direction and even simultaneously. For example, the gravitational field of planet Earth is busy converting space to time, supplying Earth's time dimension and historical entropy drive, while on the Sun the reaction is running in both directions at once, creating time from space on the one hand, but also converting mass to light and hence converting the intrinsic motion of time (bound energy's entropy drive) to the intrinsic motion of light (free energy's entropy drive).
The double conservation role of gravity derives from the double gauge role of light: the intrinsic motion of light is both the entropy drive and the symmetry gauge of free energy. Light's intrinsic motion creates, expands, and cools space (entropy role), while simultaneously suppressing the time dimension, thus maintaining the inertial (dimensional) symmetry of the spacetime metric, as well as the distributional symmetry of light's energy. The intrinsic motion of light is the direct cause of light's zero "Interval" or "non-local" symmetric energy state, so when gravity conserves and restores light's non-local energy state, gravity also conserves and restores (by default) the entropic role played by light's intrinsic motion. Because gravity conserves both the entropy and symmetry functions of the electromagnetic gauge "velocity c", gravity may be included under the conservation mantle of Noether's Theorem, arising like the other forces from a material charge ("location"), which reflects a symmetry debt of light. As we have learned from quantum mechanics and sub-atomic physics, matter is in fact an asymmetric form of light: one-half of a particle-antiparticle pair. (For a further discussion of the origin of gravity and the other forces as symmetry debts of light, see: "Symmetry Principles of the Unified Field Theory".)
An associated conservation role of gravity involves causality, obviously because gravity creates the time dimension of matter. The intrinsic motion of time creates history, just as the intrinsic motion of light creates space. Just as space is the conservation domain of free energy, so history is the conservation domain of information, matter's causal web, net, field, or "matrix". Historic spacetime is the creation of gravity and matter's entropy drive, the intrinsic motion of time. Combined with the intrinsic motion of light, historic spacetime creates and upholds the reality of matter's "universal present moment". The reality of today depends absolutely on the continuing reality of yesterday (because of the interwoven net of temporal, causal linkages: our "yesterday" is another observer's "today", and vice versa). This is a third conservation role and rationale for gravity as a long-range and universal force: gravity is necessary to create and maintain (through time) the causal reality and temporal linkage of matter with historic spacetime throughout the Cosmos ("karma"). (See: "A Spacetime Map of the Universe".)
The weakness of gravity is due to the fact that matter is connected to its entropic conservation domain (historic spacetime) only tangentially, via the single "touch" of the universal "present moment". Time and history are at right angles to all three spatial dimensions, simultaneously. Gravity creates only enough time to service this tangential connection. For a discussion of the weakness of gravity, see: "Proton Decay and the 'Heat Death' of the Universe".)
Finally, the 1st law of thermodynamics, energy conservation, can be regarded as the primary role of gravitation, with entropy, causality, and symmetry conservation as corollaries, since the role of the spacetime metric is first and foremost to conserve energy. The action of gravitation converts a global metric of space, light, and absolute motion gauged by c, to a local metric of time, matter, and relative motion gauged by G. Time or historical entropy can be regarded as a "local" form of entropy drive, distilled from the "global", spatial entropy drive of light (by the gravitational annihilation of space and the extraction of a metrically equivalent temporal residue). Time is the local compensating component of the gravitational field vector (spacetime) - the local gauge symmetry "current" - protecting the invariance of the "Interval" and causality, accomplishing energy conservation despite the variable and relative motions of matter, and the variable gravitational metric. To this end, time itself must be flexible and co-vary with space (as per Special and General Relativity). In this regard, time is the functional analog of the magnetic component of the electromagnetic field. ("Lorentz invariance" produces a magnetic field when associated with electrically charged particles in relative motion, and both time and magnetism function as "local gauge symmetry currents" protecting the Interval, causality, and the invariance of charge and velocity c.) (See: Robert Resnick: Introduction to Special Relativity. John Wiley and Sons, Inc. 1968 pp. 175 - 177.) (See: "Global vs Local Gauge Symmetry and Gravitation".)
As magnetism is the invisible, "intrinsic" projective electrical force ("electro-motive" force) of the loadstone, so gravity is the invisible, "intrinsic" projective dimensional force ("inertio-motive" force) of the ordinary rock. In the case of magnetism, we trace the force back to the moving (and aligned) electric charges of the electrons in the loadstone; in the case of gravity, we trace the force back to the moving (and one-way) temporal charges of the bound energy in the rock. A moving electric charge creates a magnetic field; a moving temporal charge creates a gravitational field. In both cases the field is produced at right angles to the current. The relation is reciprocal as well: moving magnetic and spatial fields (gravity) create electric and temporal currents (time). Finally, time and gravitation induce each other endlessly, as do the electric and magnetic field components of light. This is the analogy between gravitation and electromagnetism which so intrigued Einstein.
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