Cosmology & Gravity: Part 1

Theoretical Foundation of Gravito-Electromagnetism (by Antoine Acke): Abstract: Under the heading “gravito-electromagnetism”(G.E.M.), the analogy between gravitational and electrical phenomena that is expressed by Newton’s law of universal gravitation and Coulomb’s law of electrical interaction, is extended to a formal analogy between the gravitational and the electromagnetic fields. In this paper we present an introduction to G.E.M. and we propose a theoretical foundation of this topic.

Do Gravitons from a Prior Universe Survive a LQG ‘Quantum Bounce’? (by Andrew W. Beckwith): Abstract: We ask if a formula for entropy, as given by S ≡E/T with a usual value ascribed to initial entropy S~105 at the onset of inflation allows an order of magnitude resolution of whether there could be a survival of a graviton from a prior to the present universe, during a ‘bounce’ as predicted by Loop Quantum Gravity, using typical Planckian peak temperature values of T~1019GeV. We obtain values consistent with up to 1038 gravitons contributing to an energy value of E~1024 GeV, if we assume a relic energy contribution where each graviton initially exhibits a frequency spike of 1010Hz. The value of E~1024 GeV is picked from looking at the aftermath of what happens if there is a quantum bounce with a peak density value of ρ max imum ~ 2.07·ρplanck [16] in a regime of LQG bounce radii on the order of magnitude of λ~10-35 meters. The author, in making estimates, specifically avoids using S≡[E-µN] by setting the chemical potential µ≡0 at ultra high temperatures – for reasons which are brought up in the conclusion.

The Sun Is Electrically Charged & the Conundrum of the "Missing Mass" Is Explained (by Bernard R. Bligh): Abstract: A study of the Sun's corona reveals that the velocities of electrons are substantially higher than the velocity of escape and the velocities of protons are well below the velocity of escape. The Solar Wind contains equal proportions of electrons and protons, it follows that there must be a mechanism for ejecting protons from the surface of the Sun and for holding back most of the electrons. It is postulated here that the Sun and all hot stars have a net positive electric charge. If a galaxy as a whole is neutral it follows that there is a net negative charge in the interstellar space in a galaxy. This hypothesis is supported by the fact that electron clouds have been detected near the bulge of the Milky Way. The next step in the reasoning is that there are attractive electrical forces between these stars and the central bulge and that these attractive forces account for the pattern of velocities of stars in orbit in a galaxy (the so-called ‘flat rotation curve’). It follows that there is no need for a hypothetical ‘missing mass’ to provide a gravitational force for this velocity pattern.

The Nature of Dimensions (by Lawrence B. Crowell, Ray B. Munroe, Jr.): Abstract: An interesting pattern is observed in Clifford Algebra Symmetries, anticipated M-Theory / F-Theory branes, G2 group symmetries, and the Fibonacci and Lucas Number Sequences. This pattern may specify the structure of dimensions, and implies a relationship between Scale Invariance, Supersymmetry and Spin Statistics.