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1. |
Record Nr. |
UNINA9910791386203321 |
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Titolo |
Somalia [[electronic resource] ] : communications |
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Pubbl/distr/stampa |
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Petaluma, CA, : World Trade Press, 2010 |
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ISBN |
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Edizione |
[2nd ed.] |
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Descrizione fisica |
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1 online resource (23 p.) |
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Disciplina |
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Soggetti |
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Telecommunication - Somalia |
Mass media - Somalia |
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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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Sommario/riassunto |
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Get all three comprehensive reports bundled into one for a complete media and communications profile of Somalia. An excellent source of practical information, this profile offers an extensive dialing guide with city codes, a listing of ISPs and Internet cafes, profiles of the major media outlets (with contact info!) and more. |
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2. |
Record Nr. |
UNINA9910953372303321 |
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Autore |
Hawking Stephen <1942-2018.> |
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Titolo |
The nature of space and time / / with a new afterword by the authors Stephen Hawking and Roger Penrose |
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Pubbl/distr/stampa |
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Princeton, N.J., : Princeton University Press, 2010, c1996 |
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ISBN |
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9786612569265 |
9780691150949 |
069115094X |
9780691037912 |
0691037914 |
9781282569263 |
1282569260 |
9781400834747 |
1400834740 |
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Edizione |
[13th print.] |
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Descrizione fisica |
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1 online resource (156 pages) |
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Collana |
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The Isaac Newton Institute series of lectures |
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Classificazione |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Space and time |
Quantum theory |
Astrophysics |
Cosmology |
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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 bibliografia |
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Includes bibliographical references (p. [143]-145). |
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Nota di contenuto |
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Frontmatter -- Contents -- Foreword -- Acknowledgments -- CHAPTER ONE. Classical Theory / Hawking, Stephen -- CHAPTER Two. Structure of Spacetime Singularities / Penrose, Roger -- CHAPTER THREE. Quantum Black Holes / Hawking, Stephen -- CHAPTER FOUR. Quantum Theory and Spacetime / Penrose, Roger -- CHAPTER FIVE. Quantum Cosmology / Hawking, Stephen -- CHAPTER SIX. The Twistor View of Spacetime / Penrose, Roger -- CHAPTER SEVEN. The Debate / Hawking, Stephen / Penrose, Roger -- AFTERWORD TO THE 2010 EDITION. The Debate Continues / Hazvking, Stephen / Penrose, Roger -- References |
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Sommario/riassunto |
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Einstein said that the most incomprehensible thing about the universe |
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is that it is comprehensible. But was he right? Can the quantum theory of fields and Einstein's general theory of relativity, the two most accurate and successful theories in all of physics, be united into a single quantum theory of gravity? Can quantum and cosmos ever be combined? In The Nature of Space and Time, two of the world's most famous physicists-Stephen Hawking (A Brief History of Time) and Roger Penrose (The Road to Reality)-debate these questions.The authors outline how their positions have further diverged on a number of key issues, including the spatial geometry of the universe, inflationary versus cyclic theories of the cosmos, and the black-hole information-loss paradox. Though much progress has been made, Hawking and Penrose stress that physicists still have further to go in their quest for a quantum theory of gravity. |
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