the edge of infinity supermassive black holes in the universe

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The Edge Of Infinity

Author : Fulvio Melia
ISBN : 0521814057
Genre : Science
File Size : 56. 24 MB
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In the past, they were recognized as the most destructive force in nature. Now, following a cascade of astonishing discoveries, supermassive black holes have undergone a dramatic shift in paradigm. Astronomers are finding out that these objects may have been critical to the formation of structure in the early universe, spawning bursts of star formation, planets, and even life itself. They may have contributed as much as half of all the radiation produced after the Big Bang, and as many as 200 million of them may now be lurking through the vast expanses of the observable cosmos. In this elegant, non-technical account, Melia conveys for the general reader the excitement generated by the quest to expose what these giant distortions in the fabric of space and time have to say about our origin and ultimate destiny.

The Galactic Supermassive Black Hole

Author : Fulvio Melia
ISBN : 0691131295
Genre : Science
File Size : 23. 60 MB
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Here, one of the world's leading astrophysicists provides the first comprehensive and logically structured overview of the many ideas and discoveries pertaining to the supermassive black hole at the galactic center known as Sagittarius A*. By far the closest galactic nucleus in the universe, Sagittarius A* alone can provide us with a realistic expectation of learning about the physics of strong gravitational fields, and the impact of such fields on the behavior of matter and radiation under severe physical conditions. Its proximity may even provide the opportunity to directly test one of general relativity's most enigmatic predictions--the existence of closed pockets of space-time hidden behind an event horizon. The plethora of research on Sagittarius A* since its discovery in 1974 has long seemed an interwoven pattern of loose threads. No one has successfully synthesized this growing body of work into a manageable, coherent book both for professional researchers and for students taking courses focusing on black holes and galactic nuclei--until now. With Fulvio Melia's The Galactic Supermassive Black Hole, readers finally have at their disposal a one-volume crucible of essential ideas, logically streamlined but with thorough references for those wishing to explore the various topics in greater depth.

Galaxies

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File Size : 39. 64 MB
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The New Cosmos

Author :
ISBN : 9781107068858
Genre :
File Size : 75. 62 MB
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Black Holes And The Universe

Author : Igor D. Novikov
ISBN : 0521558700
Genre : Nature
File Size : 87. 72 MB
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A popular account of the properties and significance of black holes.

Beyond The Hoax

Author : Alan D. Sokal
ISBN : UOM:39015076173676
Genre : Philosophy
File Size : 87. 10 MB
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In 1996, Alan Sokal, a Professor of Physics at New York University, wrote a paper for the cultural-studies journal iSocial Text/i, entitled: i'Transgressing the Boundaries: Towards a transformative hermeneutics of quantum gravity'/i. It was reviewed, accepted and published. Sokal immediately confessed that the whole article was a hoax - a cunningly worded paper designed to expose and parody the style of extreme postmodernist criticism of science. The story became front-page news around theworld and triggered fierce and wide-ranging controversy. Sokal is one of the most powerful voices in the continuing debate about the status of evidence-based knowledge. In iBeyond the Hoax/i he turns his attention to a new set of targets - pseudo-science, religion, and misinformation in public life. 'Whether my targets are the postmodernists of the left, the fundamentalists of the right, or the muddle-headed of all political and apolitical stripes, the bottom line is that clear thinking, combined with a respect for evidence, are of the utmost importance to the survival of the human race in the twenty-first century.' The book also includes a hugely illuminating annotated text of the Hoax itself, and a reflection on the furore it provoked.

The British National Bibliography

Author : Arthur James Wells
ISBN : UOM:39015057956560
Genre : English literature
File Size : 57. 29 MB
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Gravity S Fatal Attraction

Author : Mitchell Begelman
ISBN : 9781316139462
Genre : Science
File Size : 45. 23 MB
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Richly illustrated with the images from observatories on the ground and in space, and computer simulations, this book shows how black holes were discovered, and discusses our current understanding of their role in cosmic evolution. This second edition covers new discoveries made in the past decade, including definitive proof of a black hole at the center of the Milky Way, evidence that the expansion of the Universe is accelerating, and the new appreciation of the connection between black holes and galaxy formation. There are entirely new chapters on gamma-ray bursts and cosmic feedback. Begelman and Rees blend theoretical arguments with observational results to demonstrate how both approaches contributed to this subject. Clear illustrations and photographs reveal the strange and amazing workings of our universe. The engaging style makes this book suitable for introductory undergraduate courses, amateur astronomers, and all readers interested in astronomy and physics.

An Introduction To Mind Consciousness And Language

Author : N. R. Cattell
ISBN : 0826455166
Genre : Language Arts & Disciplines
File Size : 59. 91 MB
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This textbook is a comprehensive introduction to the relationship between the mind, consciousness and language. The book examines the key concepts from both philosophy and linguistics including the mind / body problem, analyses Skinner'

The Black Hole At The Center Of Our Galaxy

Author : Fulvio Melia
ISBN : 9780691186368
Genre : Science
File Size : 56. 22 MB
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Could Einstein have possibly anticipated directly testing the most captivating prediction of general relativity, that there exist isolated pockets of spacetime shielded completely from our own? Now, almost a century after that theory emerged, one of the world's leading astrophysicists presents a wealth of recent evidence that just such an entity, with a mass of about three million suns, is indeed lurking at the center of our galaxy, the Milky Way--in the form of a supermassive ''black hole''! With this superbly illustrated, elegantly written, nontechnical account of the most enigmatic astronomical object yet observed, Fulvio Melia captures all the excitement of the growing realization that we are on the verge of actually seeing this exotic object within the next few years. Melia traces our intellectual pilgrimage to the ''brooding behemoth'' at the heart of the Milky Way. He describes the dizzying technological advances that have recently brought us to the point of seeing through all the cosmic dust to a dark spot in a clouded cluster of stars in the constellation Sagittarius. Carefully assembling the compelling circumstantial evidence for its black hole status, he shows that it is primed to reveal itself as a glorious panorama of activity within this decade--through revolutionary images of its ''event horizon'' against the bright backdrop of nearby, radiating gas. Uniquely, this book brings together a specific and fascinating astronomical subject--black holes--with a top researcher to provide both amateur and armchair astronomers, but also professional scientists seeking a concise overview of the topic, a real sense of the palpable thrill in the scientific community when an important discovery is imminent.

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