On Spacetime as a Damped Oscillator and The Dark Universe (eBook, ePUB)
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The universe is full of matter and the attractive force of gravity pulls all matter together. The expansion of the universe has not been slowing due to gravity, as everyone thought, it has been accelerating. Maybe it was a result of a long-discarded version of Einstein's theory of gravity, one that contained what was called a "cosmological constant." Maybe there was some strange kind of energy-fluid that filled space. Maybe there is something wrong with Einstein's theory of gravity and a new theory could include some kind of field that creates this cosmic acceleration. It turns out that roughl...
The universe is full of matter and the attractive force of gravity pulls all matter together. The expansion of the universe has not been slowing due to gravity, as everyone thought, it has been accelerating. Maybe it was a result of a long-discarded version of Einstein's theory of gravity, one that contained what was called a "cosmological constant." Maybe there was some strange kind of energy-fluid that filled space. Maybe there is something wrong with Einstein's theory of gravity and a new theory could include some kind of field that creates this cosmic acceleration. It turns out that roughly 68% of the universe is dark energy. Dark matter makes up about 27%. The rest - everything on Earth, everything ever observed with all of our instruments, all normal matter - adds up to less than 5% of the universe. Come to think of it, maybe it shouldn't be called "normal" matter at all, since it is such a small fraction of the universe. Balungi Francis explains this major conundrum in modern science, modifies General relativity and gives a solution to the cause of an accelearting expansion of the Universe. This book provides solutions to the following major questions In Physics:
Not since James Clerk Maxwell celebrated best-seller a Dynamical Theory of the Electromagnetic Field and Carlo Rovelli Reality Is Not What It Seems: The Journey to Quantum Gravity has physics been so vividly, intelligently, mathematically and entertainingly revealed. This is a First Edition to the study of spacetime and dark energy .
- What is the cause of the observed accelerating expansion of the universe (the de Sitter phase)? Are the observations rightly interpreted as the accelerating expansion of the universe, or are they evidence that the cosmological principle is false?
- Is the universe homogeneous and isotropic at large enough scales, as claimed by the cosmological principle and assumed by all models that use the FriedmannLemaîtreRobertsonWalker metric, including the current version of the ΛCDM model, or is the universe inhomogeneous or anisotropic?
- Is the FriedmannLemaîtreRobertsonWalker metric the right metric to use for our universe?
- Why does the zero-point energy of the vacuum not cause a large cosmological constant? What cancels it out?
- Is dark energy a pure cosmological constant or are models of quintessence such as phantom energy applicable?
Not since James Clerk Maxwell celebrated best-seller a Dynamical Theory of the Electromagnetic Field and Carlo Rovelli Reality Is Not What It Seems: The Journey to Quantum Gravity has physics been so vividly, intelligently, mathematically and entertainingly revealed. This is a First Edition to the study of spacetime and dark energy .
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