A Ray Of Light In A Sea Of Dark Matter
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A Ray Of Light In A Sea Of Dark Matter
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Author : Charles Keeton
language : en
Publisher: Rutgers University Press
Release Date : 2014-04-30
A Ray Of Light In A Sea Of Dark Matter written by Charles Keeton and has been published by Rutgers University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-30 with Science categories.
What’s in the dark? Countless generations have gazed up at the night sky and asked this question—the same question that cosmologists ask themselves as they study the universe. The answer turns out to be surprising and rich. The space between stars is filled with an exotic substance called “dark matter” that exerts gravity but does not emit, absorb, or reflect light. The space between galaxies is rife with “dark energy” that creates a sort of cosmic antigravity causing the expansion of the universe to accelerate. Together, dark matter and dark energy account for 95 percent of the content of the universe. News reporters and science journalists routinely talk about these findings using terms that they assume we have a working knowledge of, but do you really understand how astronomers arrive at their findings or what it all means? Cosmologists face a conundrum: how can we study substances we cannot see, let alone manipulate? A powerful approach is to observe objects whose motion is influenced by gravity. Einstein predicted that gravity can act like a lens to bend light. Today we see hundreds of cases of this—instances where the gravity of a distant galaxy distorts our view of a more distant object, creating multiple images or spectacular arcs on the sky. Gravitational lensing is now a key part of the international quest to understand the invisible substance that surrounds us, penetrates us, and binds the universe together. A Ray of Light in a Sea of Dark Matter offers readers a concise, accessible explanation of how astronomers probe dark matter. Readers quickly gain an understanding of what might be out there, how scientists arrive at their findings, and why this research is important to us. Engaging and insightful, Charles Keeton gives everyone an opportunity to be an active learner and listener in our ever-expanding universe. Watch a video with Charles Keeton: Watch video now. (http://www.youtube.com/watch?v=Uc3byXNS1G0).
Matter Dark Matter And Anti Matter
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Author : Alain Mazure
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-11-16
Matter Dark Matter And Anti Matter written by Alain Mazure and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-11-16 with Science categories.
For over ten years, the dark side of the universe has been headline news. Detailed studies of the rotation of spiral galaxies, and 'mirages' created by clusters of galaxies bending the light from very remote objects, have convinced astronomers of the presence of large quantities of dark (unseen) matter in the cosmos. The most striking fact is that they seem to compromise about 95% of the matter/energy content of the universe. As for ordinary matter, although we are immersed in a sea of dark particles, including primordial neutrinos and photons from fossil cosmological radiation, both we and our environment are made of ordinary, 'baryonic' matter. Authors Mazure and Le Brun present the inventory of matter, baryonic and exotic, and investigating the nature and fate of matter's twin, anti-matter. They show how technological progress has been a result of basic research, in tandem with the evolution of new ideas, and how the combined effect of these advances might help lift the cosmic veil.
The Light Dark Universe
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Author :
language : en
Publisher:
Release Date :
The Light Dark Universe written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
The Light Dark Universe
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Author : Paul S. Wesson
language : en
Publisher: World Scientific
Release Date : 2008
The Light Dark Universe written by Paul S. Wesson and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Science categories.
To the eyes of the average person and the trained scientist, the night sky is dark, even though the universe is populated by myriads of bright galaxies. Why this happens is a question commonly called Olbers'' Paradox, and dates from at least 1823. How dark is the night sky is a question which preoccupies astrophysicists at the present. The answer to both questions tells us about the origin of the universe and the nature of its contents OCo luminous galaxies like the Milky Way, plus the dark matter between them and the mysterious dark energy which appears to be pushing everything apart. In this book, the fascinating history of Olbers'' Paradox is reviewed, and the intricate physics of the light/dark universe is examined in detail. The fact that the night sky is dark (a basic astronomical observation that anybody can make) turns out to be connected with the finite age of the universe, thereby confirming some event like the Big Bang. But the space between the galaxies is not perfectly black, and data on its murkiness at various wavelengths can be used to constrain and identify its unseen constituents.
Decaying Vs Annihilating Dark Matter In Light Of A Tentative Gamma Ray Line
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Author : Wilfried Buchmüller
language : en
Publisher:
Release Date : 2012
Decaying Vs Annihilating Dark Matter In Light Of A Tentative Gamma Ray Line written by Wilfried Buchmüller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
The Sun Light Sweeping The Earth Influence Our Life
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Author : Jiang Wu
language : en
Publisher: Scientific Research Publishing, Inc. USA
Release Date : 2023-02-03
The Sun Light Sweeping The Earth Influence Our Life written by Jiang Wu and has been published by Scientific Research Publishing, Inc. USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-02-03 with Antiques & Collectibles categories.
The human understanding of the universe and scientific development rely on new knowledge continuous accumulation. Much old knowledge has been gradually overthrown. Einstein’s “general relativity” completely changed people discussion direction of the origin and destination of the universe, but Einstein only won the Nobel Prize once. in fact, the reason is very simple, At that time, the Nobel Prize judges were unable to understand Einstein’s pub-lished papers, so they were unable to evaluate Einstein’s papers. And the judges could not to prove that Einstein’s conclusions were right or wrong at that time. Now Nobel Prize winners have won the Nobel Prize because he proved that Einstein’s theory has a little wrong. However, human beings always need to constantly put forward new theories in an exploratory way. Even if they are not perfect, they are also the steps to promote scientific and technological progress. In this book, discuss the miraculous phenomenon in 30 degrees north latitude, the laws of large scale-scale war victory and defeat and political situation changes, the electromagnetic waves influence biological evolution and life span, the novel coronavirus origin and popularity duration, the quantum entanglement and dark energy new explanation, they all are unsolved mysteries in the world today. It is neces-sary to boldly put forward new theories to understand the most forefront hot topics of science.
Dark Matter In Astrophysics And Particle Physics
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Author : Hans Volker Klapdor-Kleingrothaus
language : en
Publisher: World Scientific
Release Date : 2010
Dark Matter In Astrophysics And Particle Physics written by Hans Volker Klapdor-Kleingrothaus and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Science categories.
Dark matter and dark energy are one of the central mysteries in modern physics, although modern astrophysical and cosmological observations and particle physics experiments can and will provide vital clues in uncovering its true nature. The DARK 2009 Conference brought together World?s leading researchers in both astrophysics and particle physics, providing an opportunity and platform to present their latest results to the community. The topics covered are wide-ranging, from terrestrial underground experiments to space experimental efforts to search for dark matter, and on the theoretical aspects, from the generating of a fifth family as origin of dark matter, extra dimensions and dark matter to non-standard Wigner classes and dark matter. One of the new highlights was certainly a possible connection between a neutrino mass as observed by nuclear double beta decay and the dark energy. Highly important and relevant in its field, the book presents a vital snapshot of the sometimes seemingly disparate areas of dark matter research and offers an exciting overview of current ideas and future directions.
How Dark Matter Created Dark Energy And The Sun
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Author : Jerome Drexler
language : en
Publisher: Universal-Publishers
Release Date : 2004
How Dark Matter Created Dark Energy And The Sun written by Jerome Drexler and has been published by Universal-Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Science categories.
Through use of a lecture-slide format, this book presents an astrophysics detective story that chronicles Jerome Drexler's literature search for astronomical clues and evidence to unveil the nature of dark matter. There are a number of mysteries in astrophysics and cosmology that have remained unsolved for decades. What is dark matter? How exactly are stars created? In 1998, it was determined from supernova studies that the expansion of the Universe was accelerating, thereby creating the mystery of dark energy. Astrophysicists have developed mutually exclusive, single-phenomenon theories for each of these three phenomena, but not a unified theory for all three of them. The author's original goal was to identify dark matter, a decades-old mystery. In the process, he developed a new theory for dark matter and illuminated the nature of dark energy and the process of Sun formation. Since dark matter may have been instrumental in the creation of galaxies and stars, the author decided to test his new dark matter theory on the formation of the Sun. The results were very encouraging. He next sought a possible link between dark matter and the accelerating expansion of the Universe, which is attributed to the mysterious dark energy. Using his dark matter theory and the laws of physics, the author explained the accelerating expansion of the Universe in a plausible manner. This book chronicles the author's search for a unified astrophysical theory and how it finally evolved.
Cosmic Rays And Dark Matter
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Author : Yasushi Muraki
language : en
Publisher:
Release Date : 2004
Cosmic Rays And Dark Matter written by Yasushi Muraki and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Cosmic rays categories.
Dark Matter Theory
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Author : IntroBooks
language : en
Publisher:
Release Date : 2019-12-19
Dark Matter Theory written by IntroBooks and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-19 with categories.
Dark matter is an undetected mass form that leaves no light or least light and could be identified through its gravitational forces. The existence of the dark energy and the dark matter were found late in the 1930s. There were solid evidences in the findings of the early 20th century scientist work for the existence of the dark matter that emits least light. Sources of a repulsive force that is undetected by humans so far, is the dark energy. This dark energy is accelerating the rate at what the universe is expanding. The existence of the dark energy and the dark matter were just recent findings. There is no depth in the understanding of these matter and energy.