


Gravity
Holding the Universe Together
What is Gravity?
We all know the laws of gravitational pull as discovered by Newton. These laws are useful but they do not explain how it works or what gravity is. Matter is built by quantum fluctuations forming protons and neutrons, etc. to give the effect of mass that we observe and experience. The reason gravity pulls you toward the ground is that all objects with mass, like our Earth, actually bend and curve the fabric of the universe, called spacetime. That curvature is what you feel as gravity. That is the conventional gravitational theory, as proposed by Einstein. See video here for an explanation: https://www.youtube.com/watch?v=XRr1kaXKBsU so when I tallk about 'gravity' here, I'm really talking about the effect of space-time.
CERN physicist Hajdukovic suggested that gravitational charges in the quantum vacuum could provide an alternative to dark matter. The idea rests on the hypothesis that particles and antiparticles have gravitational charges of opposite sign. As a consequence, virtual particle-antiparticle pairs in the quantum vacuum form gravitational dipoles (having both a positive and negative gravitational charge) that can interact with baryonic matter to produce phenomena usually attributed to dark matter. So that would suggest that these gravity charges do define the fabric of the space in the universe and are, in fact, the 'vacuum' that we call 'space'?
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Quantum vacuum gravitational charges and dark matter
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Phys.Org reported on a new idea by CERN physicist Dragan Slavkov Hajdukovic which suggested that gravitational charges in the quantum vacuum could provide an alternative to dark matter. The idea rests on the hypothesis that particles and antiparticles have gravitational charges of opposite sign. As a consequence, virtual particle-antiparticle pairs in the quantum vacuum form gravitational dipoles (having both a positive and negative gravitational charge) that can interact with baryonic matter to produce phenomena usually attributed to dark matter...
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“In simple words, according to the Quantum Field Theory, all baryonic matter in the Universe is immersed in the quantum vacuum; popularly speaking, a ‘sea’ of short-living virtual particle-antiparticle pairs (like electron-positron pairs with the lifetime of about 10^-22 seconds, or neutrino-antineutrino pairs with a lifetime of about 10^-15 seconds, which is a record lifetime in the quantum vacuum). It is difficult to believe that the quantum vacuum does not interact gravitationally with the baryonic matter immersed in it. In spite of it, the quantum vacuum is ignored in astrophysics and cosmology; not because we are not aware of its importance but because no one has any idea what the gravitational properties of the quantum vacuum are. In absence of any knowledge, as a starting point, we have conjectured that particles and antiparticles have the gravitational charge of opposite sign. An immediate consequence is the existence of the gravitational dipoles; a virtual pair is a gravitational dipole (in the same way as a virtual electron-positron pair is an electric dipole), that allows the gravitational polarization of the quantum vacuum. The initial study has revealed the surprising possibility that the gravitational polarization of the quantum vacuum can produce phenomena usually attributed to dark matter.” See: https://phys.org/news/2011-11-quantum-vacuum-dark.html
How far does gravity extend?
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​Our Universe is a complex web of gravity fields and because of the discovery of galaxy superclusters and their interconnecting links as shown in the diagram below of our local supercluster, known as Laniakea, we are beginning to see that the Universe is an interactive system where 'Space' has energy and matter is the driving force behind this. Our galaxy and other nearby galaxies are being pulled toward a specific region of space. It’s about 150 million light years away, and here is the best part. No one is sure what it is. It is called the Great Attractor. Part of the reason the Great Attractor is so mysterious is that it happens to lie in a direction of the sky known as the “Zone of Avoidance”. This is in the general direction of the center of our galaxy, where there is so much gas and dust that we can’t see very far in the visible spectrum but advances in X ray and Infra-red measurements have identified some other galaxy clusters inbetween us and the Great Attractor..
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Our Local Galaxy Supercluster Laniakea - showing interactive field link lines
[ Each sphere represents a galaxy ]
https://www.youtube.com/watch?v=rENyyRwxpHo​
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Dark Matter Structure Revealed
From HubbleCast and host Dr. J. Astronomers using the NASA/ESA Hubble Space Telescope have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years from one of the most massive galaxy clusters known, the filament is part of the cosmic web that constitutes the large-scale structure of the Universe, and is a leftover of the very first moments after the Big Bang. See the new section on the Structure of the Cosmic Web.
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The theory of the Big Bang predicts that variations in the density of matter in the very first moments of the Universe led the bulk of the matter in the cosmos to condense into a web of tangled filaments. This view is supported by computer simulations of cosmic evolution, which suggest that the Universe is structured like a web, with long filaments that connect to each other at the locations of massive galaxy clusters. However, these filaments, although vast, are made mainly of dark matter, which is incredibly difficult to observe.
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See the Youtube article for further information: https://www.youtube.com/watch?v=GjO0zdXqCU0
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