Unsolved Problems in Astrophysics

Unsolved Problems in Astrophysics PDF Author: John N. Bahcall
Publisher: Princeton University Press
ISBN: 9780691016061
Category : Science
Languages : en
Pages : 398

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Book Description
The field of astrophysics is in the midst of a technological renaissance. The emphasis of this collection of essays, composed by a stellar group of astronomers and astrophysicists, is on the current state of our knowledge as a preparation for future unraveling of more mysteries of the universe, which appear most amenable to solution. Aspiring atrophysicists will be enthralled.

Unsolved Problems in Astrophysics

Unsolved Problems in Astrophysics PDF Author: John Bahcall
Publisher: Princeton University Press
ISBN: 0691188564
Category : Science
Languages : en
Pages : 394

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Book Description
The field of astrophysics is in the midst of a technologically driven renaissance, as fundamental discoveries are being made with astonishing frequency. In the last decade, new detectors in space, on earth, and deep underground have, when coupled with the computational power of modern computers, revolutionized our knowledge and understanding of the astronomical world. This is a great time for a student of any age to become acquainted with the remarkable universe in which we live. This volume is a collection of essays, originally presented orally to a diverse group of students and professionals, which reveal the most fertile areas for future study of astronomy and astrophysics. The emphasis of this work is on the clear description of the current state of our knowledge as a preparation for the future unraveling of the mysteries of the universe that appear today as most fundamental and most amenable to solution. A stellar group of astronomers and astrophysicists describes the directions and styles of work that they think are most likely to lead to progress. Bibliographical notes at the end of each presentation provide guidance for the reader who wishes to go more deeply into a given subject. Unsolved Problems in Astrophysics is a uniquely stimulating introduction to some of the most important topics in modern astrophysics.

Unsolved Problems in Astrophysics

Unsolved Problems in Astrophysics PDF Author: John N. Bahcall
Publisher:
ISBN: 9780691016078
Category : Science
Languages : en
Pages : 377

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Book Description
Essays discuss the present state of knowledge following recent discoveries about the structure of the universe, galaxies, quasars, neutrinos, and other topics, and suggest areas for future research

The Five Biggest Unsolved Problems in Science

The Five Biggest Unsolved Problems in Science PDF Author: Arthur W. Wiggins
Publisher: Turner Publishing Company
ISBN: 0470349646
Category : Science
Languages : en
Pages : 185

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Book Description
An in-depth look at the theories behind the most intriguing puzzles in physics, chemistry, biology, earth science, and astronomy In The Five Biggest Ideas in Science, authors Arthur W. Wiggins and Charles M. Wynn discussed science's most important current ideas. Now, they tackle the questions that science has been unable to answer-so far. Choosing one unsolved problem from each discipline, they explore the current scientific thinking behind these questions: How are particle masses determined? How did simple atoms first combine to form complex molecules? What role does the genome play in the development of life? Why is it so difficult to predict the weather? And what is the future of the universe? Featuring cartoons by Sidney Harris, the book includes discussions of recent theories such as the God particle, string theory, "brane" theories, and the Theory of Everything and also explores other science questions. Arthur W. Wiggins (Farmington Hills, MI) is a Professor of Physics at Oakland Community College in Michigan. Charles M. Wynn (Willimantic, CT) is a Professor of Chemistry at Eastern Connecticut State College. They collaborated on The Five Biggest Ideas in Science (0-471-13812-6).

Unsolved Problems of the Milky Way

Unsolved Problems of the Milky Way PDF Author: Leo Blitz
Publisher: Springer Science & Business Media
ISBN: 9400916876
Category : Science
Languages : en
Pages : 716

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Book Description
Although the Milky Way is the most studied and best understood galactic system, there are many fundamental questions about our Galaxy that remain unanswered. This book concentrates on those questions which have the widest applicability in all of astrophysics, and for which answers are most likely to be forthcoming in the next few years. Is the Milky Way a barred spiral, and if so, what are its properties? Is the disk of the Milky Way axisymmetric and what does the answer tell us about its dynamical history? Is there a black hole at the center of the Galaxy? How far does the Galaxy extend? How much dark matter is there in the Milky Way system? And more.

Unsolved Problems of Astronomy

Unsolved Problems of Astronomy PDF Author: Simon Newcomb
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 0

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Book Description


The World's 20 Greatest Unsolved Problems

The World's 20 Greatest Unsolved Problems PDF Author: John R. Vacca
Publisher: Prentice-Hall PTR
ISBN:
Category : Computers
Languages : en
Pages : 712

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Book Description
When Phebe Hedges, a woman in East Hampton, New York, walked into the sea in 1806, she made visible the historical experience of a family affected by the dreaded disorder of movement, mind, and mood her neighbors called St.Vitus's dance. Doctors later spoke of Huntington’s chorea, and today it is known as Huntington's disease. This book is the first history of Huntington’s in America. Starting with the life of Phebe Hedges, Alice Wexler uses Huntington’s as a lens to explore the changing meanings of heredity, disability, stigma, and medical knowledge among ordinary people as well as scientists and physicians. She addresses these themes through three overlapping stories: the lives of a nineteenth-century family once said to “belong to the disease”; the emergence of Huntington’s chorea as a clinical entity; and the early-twentieth-century transformation of this disorder into a cautionary eugenics tale. In our own era of expanding genetic technologies, this history offers insights into the social contexts of medical and scientific knowledge, as well as the legacy of eugenics in shaping both the knowledge and the lived experience of this disease.

Unsolved Problems in Special and General Relativity

Unsolved Problems in Special and General Relativity PDF Author: Florentin Smarandache
Publisher: Infinite Study
ISBN: 1599732203
Category : Relativity (Physics)
Languages : en
Pages : 319

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Book Description


Unsolved Problems in Astronomy

Unsolved Problems in Astronomy PDF Author: Source Wikipedia
Publisher: University-Press.org
ISBN: 9781230499444
Category :
Languages : en
Pages : 38

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Book Description
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 37. Chapters: Corona, Dark energy, Dark matter, Diffuse interstellar band, Extraterrestrial life, M-sigma relation, Ultra-high-energy cosmic ray, Unidentified Infrared Emission. Excerpt: In astronomy and cosmology, dark matter is a type of matter hypothesized to account for a large part of the total mass in the universe. Dark matter cannot be seen directly with telescopes; evidently it neither emits nor absorbs light or other electromagnetic radiation at any significant level. Instead, its existence and properties are inferred from its gravitational effects on visible matter, radiation, and the large-scale structure of the universe. According to the Planck mission team, and based on the standard model of cosmology, the total mass-energy of the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. Thus, dark matter is estimated to constitute 84.5% of the total matter in the universe. Dark matter came to the attention of astrophysicists due to discrepancies between the mass of large astronomical objects determined from their gravitational effects, and the mass calculated from the "luminous matter" they contain: stars, gas and dust. It was first postulated by Jan Oort in 1932 to account for the orbital velocities of stars in the Milky Way, and by Fritz Zwicky in 1933 to account for evidence of "missing mass" in the orbital velocities of galaxies in clusters. Subsequently, many other observations have indicated the presence of dark matter in the universe, including the rotational speeds of galaxies by Vera Rubin, in the 1960s-1970s, gravitational lensing of background objects by galaxy clusters such as the Bullet Cluster, the temperature distribution of hot gas in galaxies and clusters of galaxies, and more recently the pattern of anisotropies in the cosmic microwave background. According to consensus...

Unsolved Problems of the Milky Way

Unsolved Problems of the Milky Way PDF Author: Leo Blitz
Publisher: Springer
ISBN: 9780792340409
Category : Science
Languages : en
Pages : 768

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Book Description
Although the Milky Way is the most studied and best understood galactic system, there are many fundamental questions about our Galaxy that remain unanswered. This book concentrates on those questions which have the widest applicability in all of astrophysics, and for which answers are most likely to be forthcoming in the next few years. Is the Milky Way a barred spiral, and if so, what are its properties? Is the disk of the Milky Way axisymmetric and what does the answer tell us about its dynamical history? Is there a black hole at the center of the Galaxy? How far does the Galaxy extend? How much dark matter is there in the Milky Way system? And more.

Unsolved Problems in Stellar Evolution

Unsolved Problems in Stellar Evolution PDF Author: Space Telescope Science Institute (U.S.)
Publisher: Cambridge University Press
ISBN: 9780521780919
Category : Science
Languages : en
Pages : 780

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Book Description
The most comprehensive and up-to-date survey available on stellar structure and evolution, with a special emphasis on currently unsolved problems.