Author: James Martin Overduin
Publisher: World Scientific
ISBN: 9812834419
Category : Science
Languages : en
Pages : 236
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Book Description
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 ? 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.
Author: Yann Mambrini
Publisher: Springer Nature
ISBN: 3030781399
Category : Science
Languages : en
Pages : 518
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Book Description
This book provides a comprehensive and instructive coverage of particle physics in the early universe, in a logical way. It starts from the thermal history of the universe by investigating some of the main arguments such as Big Bang nucleosynthesis, the cosmic microwave background (CMB) and the inflation, before treating in details the direct and indirect detection of dark matter and then some aspects of the physics of neutrino. Following, it describes possible candidates for dark matter and its interactions. The book is targeted at theoretical physicists who deal with particle physics in the universe, dark matter detection and astrophysical constraints, and at particle physicists who are interested in models of inflation or reheating. This book offers also material for astrophysicists who work with quantum field theory computations. All that is useful to compute any physical process is included: mathematical tables, all the needed functions for the thermodynamics of early universe and Feynman rules. In light of this, this book acts as a crossroad between astrophysics, particle physics and cosmology.
Author: Marcia Bartusiak
Publisher: HarperCollins Publishers
ISBN:
Category : Biography & Autobiography
Languages : en
Pages : 412
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Book Description
One of America's most talked-about science writers--and author of the award-winning book, Thursday's Universe--explores the phenomenon of "dark matter", the hypothesized, invisible substance that is changing our view of the universe. Photographs.
Author: T. L. W. Savage
Publisher:
ISBN: 9781090434920
Category :
Languages : en
Pages : 412
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Book Description
Alex is going crazy from girl trouble, danger, and this voice in his head. First he was abducted by aliens. They said they'll help save Earth, if the Earthlings pass a test. Alex can't help with the test, which is frustration. Instead, he's trying to do what no one has lived to achieve. Now even that's interrupted. He has to face a terrible deem in a duel, a fist fight to the death. Alex could avoid it, but then everyone gets killed.The Weird and the two alien girls in his life struggle to keep Alex alive. But, Alex isn't cooperating. The girls are jealous and are fighting instead of keeping Alex alive. Will Alex survive? Will he avoid disaster for everyone? Can the girls deal with the love triangle to save Alex? Oh, and Alex has the Galaxy's nastiest bad guy in his head and this evil person is very persuasive. What are his plans for Alex?About the Author:Tim L Walker (aka Tim Savage), is a storyteller, a husband, a dad, a grandpa, a writer, and a fellow traveler on this crazy adventure called life. "I've always loved books, as a child I would check books out at the library by the box full. I began creating stories at an early age. One night my seven-year-old sister woke screaming and I, a twelve-year-old, went to comfort her. She was quite terrified from a nightmare. On the spur of the moment, I created a fantastical story for her. As I dreamed up details Sis calmed down.
Author: Lawrence Maxwell Krauss
Publisher: Simon and Schuster
ISBN: 145162445X
Category : Science
Languages : en
Pages : 226
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Book Description
This is a provocative account of the astounding new answers to the most basic philosophical question: Where did the universe come from and how will it end?
Author: Alain Mazure
Publisher: Springer Science & Business Media
ISBN: 144198822X
Category : Science
Languages : en
Pages : 188
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Book Description
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.
Author: Brian Clegg
Publisher: Icon Books
ISBN: 1785785699
Category : Science
Languages : en
Pages : 121
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Book Description
'Clear and compact ... It's hard to fault as a brief, easily digestible introduction to some of the biggest questions in the Universe' Giles Sparrow, BBC Four's The Sky at Night , Best astronomy and space books of 2019: 5/5 All the matter and light we can see in the universe makes up a trivial 5 per cent of everything. The rest is hidden. This could be the biggest puzzle that science has ever faced. Since the 1970s, astronomers have been aware that galaxies have far too little matter in them to account for the way they spin around: they should fly apart, but something concealed holds them together. That 'something' is dark matter - invisible material in five times the quantity of the familiar stuff of stars and planets. By the 1990s we also knew that the expansion of the universe was accelerating. Something, named dark energy, is pushing it to expand faster and faster. Across the universe, this requires enough energy that the equivalent mass would be nearly fourteen times greater than all the visible material in existence. Brian Clegg explains this major conundrum in modern science and looks at how scientists are beginning to find solutions to it.
Author: Timothy Lee Walker
Publisher: Createspace Independent Publishing Platform
ISBN: 9781515195078
Category :
Languages : en
Pages : 102
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Book Description
Alex is a teenage boy abducted by aliens. An alien nurse is healing Alex and everything should be great, but Alex has to pass some training in order to be a help in trying to save Earth. The worst of it is a couple of terrible alien kids are going to give him the training. What's going on with the aliens and Alex? And can Alex learn what he needs? What will happen to him?
Author: Fred C. Adams
Publisher: Simon and Schuster
ISBN: 0684865769
Category : Science
Languages : en
Pages : 292
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Book Description
This book takes readers on a fantastic voyage to the physics of eternity, with a long-term projection of the evolution of the universe.
Author: Iain Nicolson
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 200
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Book Description
Once we thought the universe was filled with shining stars, dust, planets, and galaxies. We now know that more than 98 percent of all matter in the universe is dark. It emits absolutely nothing yet bends space and time; keeps stars speeding around galaxies; and determines the fate of the universe. But dark matter is only part of the story. Scientists have recently discovered that the expansion of the universe is speeding up, driven by a mysterious commodity called dark energy. Depending on what dark matter and energy happen to be, our seemingly quiet universe could end its days in a Big Rip, tearing itself apart, or a Big Crunch, collapsing down to a universe the size of nothing, ready to be reincarnated in a Big Bang once again. For the general reader and armchair astronomer alike, Iain Nicolson’s fascinating account shows how our ideas about the nature and the content of the universe have developed. He highlights key discoveries, explains underlying concepts, and examines current thinking on dark matter and dark energy. He describes techniques that astronomers use to explore the remote recesses of the cosmos in their quest to understand its composition, evolution, and ultimate fate.
