Tag: Gravitational

Free Download Gravitational Lenses by Peter Schneider , Jürgen Ehlers , Emilio E. Falco
English | PDF | 1992 | 564 Pages | ISBN : 3540665064 | 55.3 MB
Light observed from distant objects is found to be deflected by the gravitational field of massive objects near the line of sight – an effect predicted by Einstein in his first paper setting forth the general theory of relativity, and confirmed by Eddington soon afterwards. If the source of the light is sufficiently distant and bright, and if the intervening object is massive enough and near enough to the line of sight, the gravitational field acts like a lens, focusing the light and producing one or more bright images of the source. This book, by renowned researchers in the field, begins by discussing the basic physics behind gravitational lenses: the optics of curved space-time. It then derives the appropriate equations for predicting the properties of these lenses. In addition, it presents up-to-date observational evidence for gravitational lenses and describes the particular properties of the observed cases. The authors also discuss applications of the results to problems in cosmology.

Free Download Quantum Gravity From Gravitational Waves To Gravitons
Published 1/2024
MP4 | Video: h264, 1920×1080 | Audio: AAC, 44.1 KHz
Language: English | Size: 5.33 GB | Duration: 6h 40m
Quantum Aspects of Gravitation: gravitational waves, polarization, gravitons, vacuum to vacuum transition amplitudes

Free Download New Relativity in the Gravitational Universe: The Theory of Cosmic Relativity and Its Experimental Evidence (Fundamental Theories of Physics, 209) by C. S. Unnikrishnan
English | November 5, 2022 | ISBN: 3031089340 | 506 pages | MOBI | 32 Mb
Our vast Universe is filled with an enormous amount of matter and energy, which are the source of large gravitational potentials affecting all physical phenomena. Because this fact about the size and contents of the Universe was not known when our fundamental theories of dynamics and relativity were completed by the 1920s, the current theories – based as they are in empty space – fail to incorporate cosmic gravity. Though the current theories are consistent with the majority of empirical facts, there are some crucial discrepancies, which demand a drastic shift to a cosmic gravitational paradigm for the theories of relativity and dynamics. The book is a detailed and widely accessible account of this paradigm, called Cosmic Relativity, supported by ample empirical evidence. It is established that all motional relativistic effects are cosmic gravitational effects. The new theory of Cosmic Relativity solves and answers all outstanding questions and puzzles about dynamics and relativity.

Free Download Gravitational Waves Explained (Mysteries of Space) by Richard Gaughan
English | December 30, 2018 | ISBN: 197850456X | 101 pages | PDF | 7.44 Mb
In September of 2015, the scientific world was buzzing: gravitational waves had been detected. It was a dramatic and conclusive demonstration of Einstein’s theory of general relativity, the most complex and far-reaching theory in the history of physics. Through detailed diagrams, relatable analogies, and informative sidebars, this text cuts through the complexity and sophistication, providing an accessible introduction to the physics of waves, the implications of general relativity, and the ways in which gravitational waves can bring new understanding of the universe around us.

Free Download Singularities in Gravitational Systems: Applications to Chaotic Transport in the Solar System by Daniel Benest, Claude Froeschlé
English | PDF | 2002 | 226 Pages | ISBN : 3540437657 | 3.9 MB
Chaos theory plays an important role in modern physics and related sciences, but -, the most important results so far have been obtained in the study of gravitational systems applied to celestial mechanics. The present set of lectures introduces the mathematical methods used in the theory of singularities in gravitational systems, reviews modeling techniques for the simulation of close encounters and presents the state of the art about the study of diffusion of comets, wandering asteroids, meteors and planetary ring particles. The book will be of use to researchers and graduate students alike.

Free Download Gravitational Waves: How Einstein’s Spacetime Ripples Reveal the Secrets of the Universe by Brian Clegg, James Gillies, Dreamscape Media, LLC
English | 2022 | ISBN: N/A | ASIN: B093J486QK | MP3@64 kbps | 4 hours and 52 minutes | 134 Mb
On September 14, 2015, after 50 years of searching, gravitational waves were detected for the first time, and astronomy changed forever. Up until then, investigation of the universe had depended on electromagnetic radiation: visible light, radio, X-rays, and the rest. But gravitational waves – ripples in the fabric of space and time – are unrelenting, passing through barriers that stop light dead. At the two two-and-a-half-mile-long LIGO observatories in the US, scientists developed incredibly sensitive detectors, capable of spotting a movement 100 times smaller than the nucleus of an atom. In 2015, they spotted the ripples produced by two black holes spiraling into each other, setting spacetime quivering. This was the first time black holes had ever been directly detected – and it promises far more for the future of astronomy.

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Free Download Gravitational Waves Explained (The Mysteries of Space) by Richard Gaughan
English | December 15th, 2018 | ISBN: 197850456X, 1978505574 | 80 pages | True EPUB | 10.54 MB
In September of 2015, the scientific world was buzzing: gravitational waves had been detected. It was a dramatic and conclusive demonstration of Einstein’s theory of general relativity, the most complex and far-reaching theory in the history of physics. Through detailed diagrams, relatable analogies, and informative sidebars, this text cuts through the complexity and sophistication, providing an accessible introduction to the physics of waves, the implications of general relativity, and the ways in which gravitational waves can bring new understanding of the universe around us.