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1. |
Record Nr. |
UNINA9910452272403321 |
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Autore |
Zimmerman Robert |
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Titolo |
The Universe in a Mirror : The Saga of the Hubble Space Telescope and the Visionaries Who Built It / / Robert Zimmerman |
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Pubbl/distr/stampa |
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Princeton, NJ : , : Princeton University Press, , [2010] |
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©2010 |
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ISBN |
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Edizione |
[With a New afterword by the author] |
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Descrizione fisica |
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1 online resource (331 p.) |
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Disciplina |
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Soggetti |
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Orbiting astronomical observatories |
Space astronomy - History - 20th century |
SCIENCE / Physics / Astrophysics |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di contenuto |
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Frontmatter -- CONTENTS -- ILLUSTRATIONS -- PREFACE -- 1. Foggy Vision -- 2. Slow Start -- 3. Getting Money -- 4. Building It -- 5. Saving It -- 6. "New Phenomena Not Yet Imagined" -- 7. Abandonment -- 8. The Lure of the Unknown -- Afterword to the Paperback Edition -- NOTES -- BIBLIOGRAPHY -- INDEX |
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Sommario/riassunto |
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The Hubble Space Telescope has produced the most stunning images of the cosmos humanity has ever seen. It has transformed our understanding of the universe around us, revealing new information about its age and evolution, the life cycle of stars, and the very existence of black holes, among other startling discoveries. But it took an amazing amount of work and perseverance to get the first space telescope up and running. The Universe in a Mirror tells the story of this telescope and the visionaries responsible for its extraordinary accomplishments. Robert Zimmerman takes readers behind the scenes of one of the most ambitious scientific instruments ever sent into space. After World War II, astronomer Lyman Spitzer and a handful of scientists waged a fifty-year struggle to build the first space telescope capable of seeing beyond Earth's atmospheric veil. Zimmerman shows how many of the telescope's advocates sacrificed careers and family to |
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get it launched, and how others devoted their lives to Hubble only to have their hopes and reputations shattered when its mirror was found to be flawed. This is the story of an idea that would not die--and of the dauntless human spirit. Illustrated with striking color images, The Universe in a Mirror describes the heated battles between scientists and bureaucrats, the perseverance of astronauts to repair and maintain the telescope, and much more. Hubble, and the men and women behind it, opened a rare window onto the universe, dazzling humanity with sights never before seen. This book tells their remarkable story. A new afterword updates the reader on the May 2009 Hubble service mission and looks to the future of astronomy, including the prospect of a new space telescope to replace Hubble. |
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2. |
Record Nr. |
UNINA9910711180403321 |
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Autore |
Barkley John |
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Titolo |
Security in open systems / / John Barkley |
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Pubbl/distr/stampa |
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Gaithersburg, MD : , : U.S. Dept. of Commerce, National Institute of Standards and Technology, , 1994 |
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Descrizione fisica |
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Collana |
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NIST special publication ; ; 800-7 |
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Altri autori (Persone) |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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1994. |
Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes. |
Title from PDF title page. |
Withdrawn. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Sommario/riassunto |
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The Public Switched Network (PSN) provides National Security and Emergency Preparedness (NS/EP) telecommunications. Service vendors, equipment manufacturers, and the federal government are concerned that vulnerabilities in the PSN could be exploited and result in |
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disruptions or degradation of service. To address these threats, NIST is assisting the Office of the Manager, National Communications System (OMNCS), in the areas of computer and network security research and development. NIST is investigating the vulnerabilities and related security issues that result from the use of open systems platforms, i.e., products based on open standards such as POSIX and OSI, in the telecommunications industry. This report is intended to provide information for the practicing programmer involved in development of telecommunications application software. In short, it provides answers to the question, "How do I build security into software based on open system platforms?" It is not intended to be tutorial in nature and assumes some knowledge of open systems and Unix. Many of the references cited are tutorial and may be used to obtain any background information required. |
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