Will Black Holes Devour the Universe? PDF Download
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Author: Melanie Melton
Publisher: Kalmbach Publishing Company
ISBN: 9780913135204
Category : Science
Languages : en
Pages : 108
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Book Description
From planets and moons to black holes and space travel, the 101 most-asked astronomical questions are answered in an easy-to-understand manner. Diagrams and illustrations help explain answers clearly. By Melanie Melton. 7 3/8 x 9 5/8; 104 pgs.; 11 illus.; softcover.
Author: Melanie Melton
Publisher: Kalmbach Publishing Company
ISBN: 9780913135204
Category : Science
Languages : en
Pages : 108
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Book Description
From planets and moons to black holes and space travel, the 101 most-asked astronomical questions are answered in an easy-to-understand manner. Diagrams and illustrations help explain answers clearly. By Melanie Melton. 7 3/8 x 9 5/8; 104 pgs.; 11 illus.; softcover.
Author: Frederick Lamb
Publisher: Benjamin-Cummings Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 520
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Book Description
Author: Brian Cox
Publisher: HarperCollins
ISBN: 0062936700
Category : Science
Languages : en
Pages : 421
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Book Description
By the star physicist and author of multiple #1 Sunday Times bestsellers, a major and definitive narrative work on black holes and how they can help us understand the universe. At the heart of our galaxy lies a monster so deadly it can bend space, throwing vast jets of radiation millions of light years out into the cosmos. Its kind were the very first inhabitants of the universe, the black holes. Today, across the universe, at the heart of every galaxy, and dotted throughout, mature black holes are creating chaos. And in a quiet part of the universe, the Swift satellite has picked up evidence of a gruesome death caused by one of these dark powers. High energy X-ray flares shooting out from deep within the Draco constellation are thought to be the dying cries of a white dwarf star being ripped apart by the intense tides of a supermassive black hole – heating it to millions of degrees as it is shredded at the event horizon. They have the power to wipe out any of the universe’s other inhabitants, but no one has ever seen a black hole itself die. But 1.8 billion light years away, the LIGO instruments have recently detected something that could be the closest a black hole gets to death. Gravitational waves given off as two enormous black holes merge together. And now scientists think that these gravitational waves could be evidence of two black holes connecting to form a wormhole – a link through space and time. It seems outlandish, but today’s physicists are daring to think the unthinkable – that black holes could connect us to another universe. At their very heart, black holes are also where Einstein’s Theory of General Relativity is stretched in almost unimaginable ways, revealing black holes as the key to our understanding of the fundamentals of our universe and perhaps all other universes. Join Professors Brian Cox and Jeff Forshaw in exploring our universe’s most mysterious inhabitants, how they are formed, why they are essential components of every galaxy, including our own, and what secrets they still hold, waiting to be discovered.
Author: Pedro G. Ferreira
Publisher: HMH
ISBN: 0547554907
Category : Science
Languages : en
Pages : 309
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Book Description
“One of the best popular accounts of how Einstein and his followers have been trying to explain the universe for decades” (Kirkus Reviews, starred review). Physicists have been exploring, debating, and questioning the general theory of relativity ever since Albert Einstein first presented it in 1915. This has driven their work to unveil the universe’s surprising secrets even further, and many believe more wonders remain hidden within the theory’s tangle of equations, waiting to be exposed. In this sweeping narrative of science and culture, an astrophysicist brings general relativity to life through the story of the brilliant physicists, mathematicians, and astronomers who have taken up its challenge. For these scientists, the theory has been both a treasure trove and an enigma. Einstein’s theory, which explains the relationships among gravity, space, and time, is possibly the most perfect intellectual achievement of modern physics—yet studying it has always been a controversial endeavor. Relativists were the target of persecution in Hitler’s Germany, hounded in Stalin’s Russia, and disdained in 1950s America. Even today, PhD students are warned that specializing in general relativity will make them unemployable. Still, general relativity has flourished, delivering key insights into our understanding of the origin of time and the evolution of all the stars and galaxies in the cosmos. Its adherents have revealed what lies at the farthest reaches of the universe, shed light on the smallest scales of existence, and explained how the fabric of reality emerges. Dark matter, dark energy, black holes, and string theory are all progeny of Einstein’s theory. In the midst of a momentous transformation in modern physics, as scientists look farther and more clearly into space than ever before, The Perfect Theory exposes the greater relevance of general relativity, showing us where it started, where it has led—and where it can still take us.
Author: Jean-Pierre Luminet
Publisher: Cambridge University Press
ISBN: 9780521409063
Category : Science
Languages : en
Pages : 338
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Book Description
Black holes are undoubtedly one of the most fascinating discoveries of modern astronomy, and their description one of the most daring intellectual feats of modern times. They have already become legendary, forming the basis of many myths, fantasies and science fiction movies. Are they really the monsters which devour light and stars; bottomless celestial pits into which all matter is sucked and crushed? Are they an observable reality, or are they just hypothetical objects from the theory of relativity? In answering such questions the author takes us on a fabulous journey through space and time. Dr Jean-Pierre Luminet is an astronomer at Meudon Observatory in France, a specialist on the subject of black holes, and has also acquired a reputation for being a gifted writer and communicator. In this book he makes the subject of black holes accessible to any interested reader, who will need no mathematical background.
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: Halsted Press
ISBN:
Category : Science
Languages : en
Pages : 272
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Book Description
Author: Stephen Perrenod
Publisher: Createspace Independent Publishing Platform
ISBN: 9781481284080
Category : Dark energy (Astronomy)
Languages : en
Pages : 0
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Book Description
Dark Matter, Dark Energy and Dark Gravity make life possible!This book for the lay reader provides a summary of the latest astrophysical observational results and theoretical insights into what we know and what we hope to learn about dark matter, dark energy, and dark gravity.How did the profound beauty of our Earth, our Solar System, our Milky Way galaxy and indeed our universe unfold? Dark matter, dark energy, and dark gravity have made all the difference in how the universe has developed, and have been key to creating the overall environment that makes life possible. We have only recently developed the ability to begin unlocking their secrets, thus providing a deeper insight into how a universe of our type is possible. It seems that because of dark matter, dark energy and dark (weak) gravity, our universe has the right attributes for the development of complex structure and the evolution of intelligent life that can engage in the quest to understand our world. These "dark" or more hidden attributes of the cosmos have very good outcomes.In particular, the existence of dark matter makes it easier to form complex structures, including galaxies, stars and planets through gravitational collapse of denser regions of the universe. Planets are the most suitable abodes for the development of life. Dark energy acts to extend the lifetime of the universe by counteracting gravity and driving continued expansion of the universe.Even as far back as the 1930s there has been evidence that most of the matter in the universe was not visible via electromagnetic radiation (optical light, radio waves, etc.). By the last few decades of the 20th century, the case for a considerable amount of this dark matter was very strong. It is the second largest contributor to the total mass-energy of the universe. We don't know what it is and there are various candidates to explain it; nevertheless we see the gravitational effects of dark matter everywhere on the largest scales. Recent observational results indicate that dark matter dominates by a factor of 6 relative to the ordinary matter that makes up stars, planets, and living things.We now know that the major contributor to the mass-energy of the universe is not the substantial dark matter, but the 'newer' so-called dark energy. Dark energy acts to some extent as a negative gravity, and for the last several billion years has driven the expansion of the universe to a faster and faster pace, overcoming even the gravitational effect of dark matter. We have a general idea that it is the irreducible energy found in every volume of space, even in the absence of matter - in the vacuum. We don't understand why it takes the value that it does, one that is small in quantum particle physics terms, but nevertheless is of great significance on the large cosmological scale of the universe. The third important aspect to consider is not a mass-energy component, but the nature of gravity and space-time. The big question here is - why is gravity so relatively weak, as compared to the other 3 forces of nature? These 3 forces are the electromagnetic force, the strong nuclear force, and the weak nuclear force. Gravity is different - it has a dark or hidden side. It may very well operate in extra dimensions beyond the normal 4 dimensions of space-time that we can observe. This is what we mean in this book by "dark gravity".
Author: Arthur I. Miller
Publisher: Houghton Mifflin Harcourt
ISBN: 9780618341511
Category : History
Languages : en
Pages : 402
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Book Description
A history of the idea of "black holes" explores the tumultuous debate over the existence of this now well-accepted phenomenon, focusing particular attention on Indian scientist Subrahmanyan Chandrasekhar.
Author: Igorʹ Dmitrievich Novikov
Publisher: Cambridge University Press
ISBN: 9780521558709
Category : Nature
Languages : en
Pages : 194
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Book Description
A popular account of the properties and significance of black holes.
