L Esplorazione Dell Universo La Rivoluzione Che Sta Svelando Il Cosmo
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L Esplorazione Dell Universo
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Author : Priyamvada Natarajan
language : it
Publisher: Bollati Boringhieri
Release Date : 2017-02-02T00:00:00+01:00
L Esplorazione Dell Universo written by Priyamvada Natarajan and has been published by Bollati Boringhieri this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-02T00:00:00+01:00 with Science categories.
«Se volete comprendere le grandi idee che stanno modellando la cosmologia contemporanea, dovete leggere questo libro». Adam G. Riess, premio Nobel per la Fisica, 2011 Per millenni l’universo è stato sinonimo della volta stellata che ci sovrasta e noi ne eravamo il centro. Con la modernità si sono sviluppate nuove idee, sono state intraprese molte strade e si è iniziato un cammino di osservazioni e mappature del cosmo, sempre più precise, che ha mutato la nostra comprensione del mondo. Negli ultimi cento anni, poi, un’improvvisa accelerazione delle ricerche scientifiche ha radicalmente trasformato le nostre conoscenze. Ma il cammino per arrivare all’immagine attuale della struttura dell’universo non è stato per nulla lineare, tutt’altro. Gelosie, vicoli ciechi, ambizioni e frustrazioni dei protagonisti di questa avventura hanno costellato il cammino della conoscenza, e se oggi sappiamo infinitamente più cose di quelle che si sapevano anche solo all’inizio del Novecento, certo non possiamo dire di sapere tutto: molto altro ancora ci stupirà in futuro, forse tra breve. In questo libro, scritto da una protagonista assoluta della mappatura del cosmo, possiamo seguire le più importanti e affascinanti scoperte dell’astrofisica contemporanea. L’universo che conosciamo oggi non sta più fermo: è in accelerazione costante, contiene immensi buchi neri – una delle strutture più misteriose che l’uomo abbia mai scoperto –, riverbera di un’eco dell’esplosione che lo originò oltre 13 milardi di anni fa, e forse è solo uno degli infiniti possibili universi. A complicare il quadro vi è la scoperta del fatto che ciò che vediamo rappresenta un misero 4% di tutto cio che c’è, mentre il 96% restante è costituito di materia oscura ed energia oscura, di cui sappiamo pochissimo (e proprio l’autrice di questo libro è una delle protagoniste della mappatura dettagliata di questo nuovo mondo misterioso). Infine, abbiamo scoperto ormai centinaia di esopianeti, Terre orbitanti attorno a Soli lontani che potrebbero un giorno far svanire la nostra convinzione di essere soli nel cosmo. Solo la scienza, con tutta la sua provvisorietà e la sua incompletezza, ha potuto darci un quadro tanto grandioso.
L Esplorazione Dell Universo La Rivoluzione Che Sta Svelando Il Cosmo
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Author : Priyamvada Natarajan
language : it
Publisher:
Release Date : 2020
L Esplorazione Dell Universo La Rivoluzione Che Sta Svelando Il Cosmo written by Priyamvada Natarajan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Science categories.
The Cosmic Web
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Author : J. Richard Gott
language : en
Publisher: Princeton University Press
Release Date : 2018-06-26
The Cosmic Web written by J. Richard Gott and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-26 with Science categories.
Semi-autobiographical discussion of astronomy and astronomers, and history of astronomy and cosmology.--
Mapping The Heavens
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Author : Priyamvada Natarajan
language : en
Publisher: Yale University Press
Release Date : 2016-04-28
Mapping The Heavens written by Priyamvada Natarajan and has been published by Yale University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-28 with Science categories.
A theoretical astrophysicist explores the ideas that transformed our knowledge of the universe over the past century. The cosmos, once understood as a stagnant place, filled with the ordinary, is now a universe that is expanding at an accelerating pace, propelled by dark energy and structured by dark matter. Priyamvada Natarajan, our guide to these ideas, is someone at the forefront of the research—an astrophysicist who literally creates maps of invisible matter in the universe. She not only explains for a wide audience the science behind these essential ideas but also provides an understanding of how radical scientific theories gain acceptance. The formation and growth of black holes, dark matter halos, the accelerating expansion of the universe, the echo of the big bang, the discovery of exoplanets, and the possibility of other universes—these are some of the puzzling cosmological topics of the early twenty-first century. Natarajan discusses why the acceptance of new ideas about the universe and our place in it has never been linear and always contested even within the scientific community. And she affirms that, shifting and incomplete as science always must be, it offers the best path we have toward making sense of our wondrous, mysterious universe. “Part history, part science, all illuminating. If you want to understand the greatest ideas that shaped our current cosmic cartography, read this book.”—Adam G. Riess, Nobel Laureate in Physics, 2011 “A highly readable, insider’s view of recent discoveries in astronomy with unusual attention to the instruments used and the human drama of the scientists.”—Alan Lightman, author of The Accidental Universe and Einstein's Dream
Before The Beginning
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Author : Martin J. Rees
language : en
Publisher:
Release Date : 2002
Before The Beginning written by Martin J. Rees and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Astronomy categories.
The experimental and theoretical successes of cosmology in recent years offer the most dramatic enlargement of our concept of the universe since astronomers first realised the Sun's true place among the stars. In this groundbreaking, thought-provoking and accessible book Professor Sir Martin Rees argues that our universe is just one element in an infinite ensemble, a cosmic archipelago where impassable barriers prohibit communication between the islands. Our 'home universe' is an exceptional member of this ensemble, however, not least because it contains creatures able to observe it and contemplate its nature, past and future. One of these is Rees himself: one of the most creative and original of contemporary scientists, and a wonderful guide to the mysteries of the cosmos.
Novacene
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Author : James Lovelock
language : en
Publisher: MIT Press
Release Date : 2020-11-10
Novacene written by James Lovelock and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-10 with Social Science categories.
A fascinating new study from the originator of the Gaia Theory, “who conceived the first wholly new way of looking at life on earth since Charles Darwin” (Independent) One of the world’s leading scientific thinkers offers a vision of a future epoch in which humans and artificial intelligence unite to save the Earth. James Lovelock, creator of the Gaia hypothesis and the greatest environmental thinker of our time, has produced an astounding new theory about future of life on Earth. He argues that the Anthropocene—the age in which humans acquired planetary-scale technologies—is, after 300 years, coming to an end. A new age—the Novacene—has already begun. In the Novacene, new beings will emerge from existing artificial intelligence systems. They will think 10,000 times faster than we do and they will regard us as we now regard plants. But this will not be the cruel, violent machine takeover of the planet imagined by science fiction. These hyperintelligent beings will be as dependent on the health of the planet as we are. They will need the planetary cooling system of Gaia to defend them from the increasing heat of the sun as much as we do. And Gaia depends on organic life. We will be partners in this project. It is crucial, Lovelock argues, that the intelligence of Earth survives and prospers. He does not think there are intelligent aliens, so we are the only beings capable of understanding the cosmos. Perhaps, he speculates, the Novacene could even be the beginning of a process that will finally lead to intelligence suffusing the entire cosmos. At the age of 100, James Lovelock has produced the most important and compelling work of his life.
The Universe Before The Big Bang
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Author : Maurizio Gasperini
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-10-08
The Universe Before The Big Bang written by Maurizio Gasperini and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-10-08 with Science categories.
Terms such as "expanding Universe", "big bang", and "initial singularity", are nowadays part of our common language. The idea that the Universe we observe today originated from an enormous explosion (big bang) is now well known and widely accepted, at all levels, in modern popular culture. But what happens to the Universe before the big bang? And would it make any sense at all to ask such a question? In fact, recent progress in theoretical physics, and in particular in String Theory, suggests answers to the above questions, providing us with mathematical tools able in principle to reconstruct the history of the Universe even for times before the big bang. In the emerging cosmological scenario the Universe, at the epoch of the big bang, instead of being a "new born baby" was actually a rather "aged" creature in the middle of its possibly infinitely enduring evolution. The aim of this book is to convey this picture in non-technical language accessibile also to non-specialists. The author, himself a leading cosmologist, draws attention to ongoing and future observations that might reveal relics of an era before the big bang.
Religion If There Is No God
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Author : Leszek Kołakowski
language : en
Publisher: New York : Oxford University Press
Release Date : 1982
Religion If There Is No God written by Leszek Kołakowski and has been published by New York : Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Drama categories.
A highly original discussion of the philosophical argumetns for and against the existence of God.
Our Cosmic Habitat
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Author : Martin Rees
language : en
Publisher: Princeton University Press
Release Date : 2017-11-21
Our Cosmic Habitat written by Martin Rees and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-21 with Science categories.
Our universe seems strangely ''biophilic,'' or hospitable to life. Is this happenstance, providence, or coincidence? According to cosmologist Martin Rees, the answer depends on the answer to another question, the one posed by Einstein's famous remark: ''What interests me most is whether God could have made the world differently.'' This highly engaging book explores the fascinating consequences of the answer being ''yes.'' Rees explores the notion that our universe is just a part of a vast ''multiverse,'' or ensemble of universes, in which most of the other universes are lifeless. What we call the laws of nature would then be no more than local bylaws, imposed in the aftermath of our own Big Bang. In this scenario, our cosmic habitat would be a special, possibly unique universe where the prevailing laws of physics allowed life to emerge. Rees begins by exploring the nature of our solar system and examining a range of related issues such as whether our universe is or isn't infinite. He asks, for example: How likely is life? How credible is the Big Bang theory? Rees then peers into the long-range cosmic future before tracing the causal chain backward to the beginning. He concludes by trying to untangle the paradoxical notion that our entire universe, stretching 10 billion light-years in all directions, emerged from an infinitesimal speck. As Rees argues, we may already have intimations of other universes. But the fate of the multiverse concept depends on the still-unknown bedrock nature of space and time on scales a trillion trillion times smaller than atoms, in the realm governed by the quantum physics of gravity. Expanding our comprehension of the cosmos, Our Cosmic Habitat will be read and enjoyed by all those--scientists and nonscientists alike--who are as fascinated by the universe we inhabit as is the author himself.
Gaia
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Author : James Lovelock
language : en
Publisher:
Release Date : 2005
Gaia written by James Lovelock and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Biosphere categories.
Author's preface; Introduction; Chapter 1 Recognising Gaia; Chapter 2 Anatomy; Chapter 3 Physiology; Chapter 4 Epigenesis; Chapter 5 Biochemistry and the cell; Chapter 6 Metabolism and planetary biochemistry; Chapter 7 Physiology and climate regulation; Chapter 8 The people plague; Conclusion; Glossary; Index