Properties of Expanding Universes

Properties of Expanding Universes PDF Author: Stephen W. Hawking
Publisher:
ISBN: 9781948117340
Category : Expanding universe
Languages : en
Pages : 130

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Book Description
Some implications and consequences of the expansion of the universe are examined. The conclusion is reached that galaxies cannot be formed as a result of the growth of perturbations that were initially small.

Properties of Expanding Universes

Properties of Expanding Universes PDF Author: Stephen W. Hawking
Publisher:
ISBN: 9781948117340
Category : Expanding universe
Languages : en
Pages : 130

Get Book Here

Book Description
Some implications and consequences of the expansion of the universe are examined. The conclusion is reached that galaxies cannot be formed as a result of the growth of perturbations that were initially small.

Properties of Expanding Universes

Properties of Expanding Universes PDF Author: S. W Hawking
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Galaxies: A Very Short Introduction

Galaxies: A Very Short Introduction PDF Author: John Gribbin
Publisher: Oxford University Press, USA
ISBN: 0199234345
Category : Science
Languages : en
Pages : 137

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Book Description
In this fascinating Very Short Introduction, popular science writer John Gribben tells the story of our growing understanding of galaxies, from the days before Galileo to our present-day observations of our many hundreds of millions of galactic neighbors. Not only are galaxies fascinating astronomical structures in themselves, but their study has revealed much of what we know today about the cosmos, providing a window on the Big Bang and the origins of the Universe. Gribben looks at our own "Milky Way" Galaxy in detail, from the different kinds of stars that are born within it, to the origins of its magnificent spiral structure. Perhaps most interesting, Gribben describes the many exciting discoveries have been made about our own galaxy and about those beyond: how a supermassive black hole lurks at the center of every galaxy, how enormous forces are released when galaxies collide, how distant galaxies provide a window on the early Universe, and how the formation of young galaxies shed needed light on the mysteries of Cold Dark Matter. John Gribbin is one of the best-known current popular science writers. His many books include the acclaimed The Universe: A Biography, In Search of Schrodinger's Cat, and Science: A History. He has written for many newspapers and regularly contributes to radio and television documentaries and debates, and also writes science fiction novels. He formerly worked for Nature and New Scientist and is presently a Visiting Fellow in Astronomy at the University of Sussex. 1. A Very Short Introduction 2. The Great Debate 3. Our Island 4. The Expanding Universe 5. Across the Universe 6. The Origin of Galaxies 7. The Universe at Large References & Further Reading Index

Expanding Universes

Expanding Universes PDF Author: Erwin Schrödinger
Publisher:
ISBN:
Category : Cosmology
Languages : en
Pages : 93

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Book Description


Lectures on General Relativity, Cosmology and Quantum Black Holes

Lectures on General Relativity, Cosmology and Quantum Black Holes PDF Author: Badis Ydri
Publisher:
ISBN: 9780750314770
Category : Cosmology
Languages : en
Pages : 0

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Book Description
"This book is a rigorous text for students in physics and mathematics requiring an introduction to the implications and interpretation of general relativity in areas of cosmology. Readers of this text will be well prepared to follow the theoretical developments in the field and undertake research projects as part of an MSc or PhD programme. This ebook contains interactive Q & A technology, allowing the reader to interact with the text and reveal answers to selected exercises posed by the author within the book. This feature may not function in all formats and on reading devices."--Prové de l'editor.

The Accidental Universe

The Accidental Universe PDF Author: Alan Lightman
Publisher: Vintage
ISBN: 0307908593
Category : Science
Languages : en
Pages : 108

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Book Description
The bestselling author of Einsteins Dreams explores the emotional and philosophical questions raised by recent discoveries in science with passion and curiosity. He looks at the dialogue between science and religion; the conflict between our human desire for permanence and the impermanence of nature; the possibility that our universe is simply an accident; the manner in which modern technology has separated us from direct experience of the world; and our resistance to the view that our bodies and minds can be explained by scientific logic and laws. Behind all of these considerations is the suggestion--at once haunting and exhilarating--that what we see and understand of the world is only a tiny piece of the extraordinary, perhaps unfathomable whole.

A Universe from Nothing

A Universe from Nothing PDF 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?

A Fortunate Universe

A Fortunate Universe PDF Author: Geraint F. Lewis
Publisher: Cambridge University Press
ISBN: 1316715221
Category : Science
Languages : en
Pages : 395

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Book Description
Over the last forty years, scientists have uncovered evidence that if the Universe had been forged with even slightly different properties, life as we know it - and life as we can imagine it - would be impossible. Join us on a journey through how we understand the Universe, from its most basic particles and forces, to planets, stars and galaxies, and back through cosmic history to the birth of the cosmos. Conflicting notions about our place in the Universe are defined, defended and critiqued from scientific, philosophical and religious viewpoints. The authors' engaging and witty style addresses what fine-tuning might mean for the future of physics and the search for the ultimate laws of nature. Tackling difficult questions and providing thought-provoking answers, this volumes challenges us to consider our place in the cosmos, regardless of our initial convictions.

Calibrating the Cosmos

Calibrating the Cosmos PDF Author: Frank Levin
Publisher: Springer Science & Business Media
ISBN: 0387497684
Category : Science
Languages : en
Pages : 302

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Book Description
This book explains in clear, non-mathematical language the measurements and the interpretation of the resulting data that have led to the current understanding of the origin, evolution and properties of our expanding Big Bang universe. Theoretical concepts are emphasized, but no other book for the layman explains how model universes are generated, and how they function as the templates against which ours is compared and analyzed. Background material is provided in the first four chapters; the current picture and how it was attained are discussed in the next four chapters; and some unsolved problems and conjectured solutions are explored in the final chapter.

Endless Universe

Endless Universe PDF Author: Paul J. Steinhardt
Publisher: Crown
ISBN: 0385523114
Category : Science
Languages : en
Pages : 306

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Book Description
Two world-renowned scientists present an audacious new vision of the cosmos that “steals the thunder from the Big Bang theory.” —Wall Street Journal The Big Bang theory—widely regarded as the leading explanation for the origin of the universe—posits that space and time sprang into being about 14 billion years ago in a hot, expanding fireball of nearly infinite density. Over the last three decades the theory has been repeatedly revised to address such issues as how galaxies and stars first formed and why the expansion of the universe is speeding up today. Furthermore, an explanation has yet to be found for what caused the Big Bang in the first place. In Endless Universe, Paul J. Steinhardt and Neil Turok, both distinguished theoretical physicists, present a bold new cosmology. Steinhardt and Turok “contend that what we think of as the moment of creation was simply part of an infinite cycle of titanic collisions between our universe and a parallel world” (Discover). They recount the remarkable developments in astronomy, particle physics, and superstring theory that form the basis for their groundbreaking “Cyclic Universe” theory. According to this theory, the Big Bang was not the beginning of time but the bridge to a past filled with endlessly repeating cycles of evolution, each accompanied by the creation of new matter and the formation of new galaxies, stars, and planets. Endless Universe provides answers to longstanding problems with the Big Bang model, while offering a provocative new view of both the past and the future of the cosmos. It is a “theory that could solve the cosmic mystery” (USA Today).