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A Universe from Nothing: Why There is Something Rather Than Nothing [Copertina rigida]

Richard Dawkins , Lawrence M. Krauss
4.5 su 5 stelle  Visualizza tutte le recensioni (4 recensioni clienti)

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Dettagli prodotto

  • Copertina rigida: 202 pagine
  • Editore: Atria Books (10 gennaio 2012)
  • Lingua: Inglese
  • ISBN-10: 145162445X
  • ISBN-13: 978-1451624458
  • Peso di spedizione: 386 g
  • Media recensioni: 4.5 su 5 stelle  Visualizza tutte le recensioni (4 recensioni clienti)
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5.0 su 5 stelle GOOD 14 marzo 2014
Formato:Copertina rigida|Acquisto verificato Amazon
very good expedition and interesting book. recommended 5 5 5 5 5 5 5 5 5 5 5 5 5 stars
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4.0 su 5 stelle Consigliato 1 marzo 2014
Formato:Copertina flessibile|Acquisto verificato Amazon
Buon libro introduttivo sulle origini e la formazione dell'universo scritto da un fisico teorico tra i migliori al mondo. Lo stile è accattivante, i concetti ben spiegati, il livello del libro è divulgativo: non ci sono formule, matematica, etc. La narrazione è strutturata, i capitoli si rincorrono in maniera robusta e crescente, e i concetti anche quelli più difficili, come il big bang e la la "Quantum fluctuation" sono resi comprensibili attraverso un uso sapiente del linguaggio e delle metafore.
Colpiscono, in negativo, la mancanza di una bibliografia e un utilizzo "lasco" delle poche immagini e grafici, poco originali e mal referenziati nel testo. Consigliato.
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1 di 2 persone hanno trovato utile la seguente recensione
5.0 su 5 stelle What a piece of work! 30 agosto 2013
Formato:Copertina flessibile|Acquisto verificato Amazon
This is an amazing book, what a piece of work, easy to follow, but inspiring and revealing.

I would suggest this to anyone having a deep interest in the real nature of our world.
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3 di 5 persone hanno trovato utile la seguente recensione
4.0 su 5 stelle Perché c'è qualche cosa invece che niente? 15 aprile 2012
Formato:Formato Kindle|Acquisto verificato Amazon
Krauss, Lawrence M. (2012). A Universe from Nothing. New York: Free Press. 2012. ISBN 9781451624458. Pagine 226. 9,99 €

Non è la prima volta che provo a leggere un libro di cosmologia: il tema non mi appassiona, ma mi dico che è dovere di una persona colta (come aspiro a diventare) cercare di capire i progressi della scienza e della conoscenza anche in campi diversi da quelli che mi sono congeniali.

Questa filosofia mi ha spesso portato ad aperture di nuovi orizzonti, ad avventure del pensiero e a esperienze felici, ma non sempre. A volte la stessa filosofia è stato un lasciapassare per la frustrazione.

Ricordo ancora quando ' studiavo all'università ' volli cimentarmi con La linguistica strutturale di Giulio C. Lepschy. Non esattamente rocket science, come si suol dire. La 4ª di copertina diceva qualcosa del tipo:

La linguistica strutturale è venuta occupando un posto centrale nella cultura, al punto d'incontro fra scienze esatte e discipline umanistiche. Al rigore dei suoi metodi guardano spesso come a un modello studiosi in campi diversi, dall'antropologia alla storia, dalla logica alla cibernetica alla critica letteraria. Questo è dovuto a un rinnovamento che la linguistica ha operato nelle proprie basi e nei propri metodi, introducendo distinzioni come quelle di sincronia e di diacronia, sintagmatica e paradigmatica, 'langue' e 'parole', e interpretando gli elementi linguistici in base alla loro pertinenza rispetto a certe funzioni, che essi possono esercitare in quanto costituiscono un sistema.
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Amazon.com: 4.0 su 5 stelle  583 recensioni
433 di 494 persone hanno trovato utile la seguente recensione
5.0 su 5 stelle This Book Is Really Something! 11 gennaio 2012
Di Book Shark - Pubblicato su Amazon.com
Formato:Copertina rigida|Acquisto verificato Amazon
A Universe from Nothing by Lawrence M. Krauss

"A Universe from Nothing" is the fascinating book about how our universe came from nothing. Using the latest in scientific knowledge, his expertise and the innate ability to explain very complex topics in accessible manner earns this book five stars. Lawrence Krauss takes us on an exciting voyage of discovery that helps us understand the universe and further whets our appetite for more knowledge. This 224-page book is composed of the following eleven chapters: 1. A Cosmic Mystery Story: Beginnings, 2. A Cosmic Mystery Story: Weighing the Universe, 3. Light from the Beginning of Time, 4. Much Ado About Nothing, 5. The Runaway Universe, 6. The Free Lunch at the End of the Universe, 7. Our Miserable Future, 8. A Grand Accident?, 9. Nothing Is Something, 10. Nothing Is Unstable, and 11. Brave New Worlds.

Positives:
1. This book is truly something! A page turner.
2. A thought-provoking, inspirational quest for knowledge...I loved it!
3. A profound book that is intelligible. An achievement in its own right. Very complex topics accessible to the masses. Thank you.
4. Elegant prose with conviction. Lucid and clarity in a world of dark matter.
5. A journey of cosmological discoveries.
6. Effective use of charts and illustrations.
7. I have a much better understanding of our universe as a result of this book and most importantly it has only whet my appetite for even more knowledge...and that's why I read.
8. A love affair with science and for good reason. The three key principles of scientific ethos.
9. Startling conclusions are presented. The author does a wonderful job of letting us know what we do know versus what we don't know.
10. Some of the greatest discoveries presented.
11. I finally have a reasonable grasp of the Big Bang, Bazinga! The three main observational pillars.
12. Of course you will get to hear about the greats of science but I really appreciate the stories of the lesser known scientists who provided vital knowledge, such as, the story of Henrietta Swan Leavitt and Vera Rubin. Bravo!
13. Great facts spruced throughout the book and some jaw-dropping insight. One scientist was able to defend his mother in a witchcraft trial...find out whom.
14. What general relativity tells us.
15. The uses for gravitational lensing. Let's get Zwicky with it.
16. Dark matter and dark energy...enlighten me. Or at least try.
17. Quantum mechanics, I will never understand it but I can appreciate it what it provides.
18. The author does a good job of telling us what scientific progress has been made and how that applies to cosmology.
19. A flat universe?? Find out.
20. An explanation of nothing that means something to me. Can you say quantum fluctuations?
21. A "creator" in proper perspective. The requirement of some externality. Read it and you will understand.
22. Multiverses...oh my.
23. String theory a critical view.
24. A little bit of philosophy for good measure.
25. The best explanation for how something can come out of nothing to best current knowledge available.
26. Key concepts will now become part of your understanding..."the existence of energy in empty space".
27. Black holes under the light and some very interesting takes.
28. Spoiler alert...one of the most profound questions, "What I want to know is whether God had any choice in the creation of the universe." Thank you, Mr. Einstein.
29. An interesting look at Aristotle and the First Cause in the light of new knowledge.
30. The book ends with a bang of reality.

Negatives:
1. No links or bibliography.
2. A lot of the concepts of this book are hard to grasp. Some readers may not have the patience and inclination to take the time to properly digest what is being offered. That being said, the author does wonders in making such difficult concepts accessible.

In summary, this is a fantastic book, a real treat. I learned so much and admire the author for providing a book that is accessible and enjoyable to the masses. This book lived up to my expectations. Fascinating topics in the hands of a master results in a captivating book. This is how science books should be written. I can't recommend this book enough!

Further suggestions: "The Quantum Universe: (And Why Anything That Can Happen, Does)" and "Why Does E=mc2?: (And Why Should We Care?)" by Brian Cox, "Quantum Man: Richard Feynman's Life in Science (Great Discoveries)" also by Lawrence Krauss, "Nothing: A Very Short Introduction (Very Short Introductions)" by Frank Close, "Knocking on Heaven's Door: How Physics and Scientific Thinking Illuminate the Universe and the Modern World" by Lisa Randall, and "The Grand Design" by Stephen Hawking.
113 di 133 persone hanno trovato utile la seguente recensione
5.0 su 5 stelle pleasurable, rewarding and complete 23 gennaio 2012
Di Nigel Kirk - Pubblicato su Amazon.com
Formato:Copertina rigida|Acquisto verificato Amazon
This shorter volume from Krauss marks his transition from talented science expositor to science champion. His crisp, clear and thorough discussion combines with a strong problem-focussed narrative to make this book a deserving popular science landmark. Some discussion retraces developments in physics that Krauss meticulously covers in previous longer books but this is necessary for a one-stop treatise on one of the most important topics in modern physics. Notes and references are omitted, acceptably in my opinion considering the briefer nature of this book. The development of the topic, the provision of a context through his intimate familiarity with the work of earlier physicists, and Krauss's offhand capacity to reduce complexity and hyperbole to a well rounded paragraph make this book pleasurable, rewarding and complete.

Krauss charts the development of theories regarding the universe's dimensions, mass, energy, inflation and homogeneity, touching on the importance of quantum fluctuations, dark energy and related phenomena. With this background, he explains Perlmutter's challenge, in 1996, to Krauss's statement that empty space might contain energy. With perfect timing, this book arrives just as Perlmutter, Reis and Schmidt gain their Nobel Prizes for confirming the accelerating expansion of the universe and as WMAP experiments hint at dark photons, all grist for the mill in the universe from nothing theory.

The treat at the end of this exposition is Krauss's scenario that humanity now enjoys the best opportunity, in terms of available evidence, to understand the universe's origin, evolution and fate. During this period, albeit billions of years long, we are able to still detect cosmic background radiation and view receding galaxies before they red-shift out of existence. We live at a good time and I am pleased that Hitch got to savour this scenario. Characteristically, Krauss then takes a sweep through and at the anthropic cosmological principal and string theory to frame the scientific method as a sometimes fuzzy, sometimes chicken and egg, but always logical way to investigate our existence. He logically extends this thinking in the `Brave New Worlds' chapter to collate some existing ideas and advance an analysis which is powerful and positive for science. His Epilogue comment from Camus, that "Sisyphus is smiling", appeals. Dawkins's quote from Carlyle in the afterword caps off the good humour with which Krauss has explored this topic.

Clearly Krauss has some fun with this book - the reader is left in no doubt of this plan after the first line in Chapter 1. The burst of early snipes at lazy thinkers and obfuscators risked the book taking a combative edge but readers can rest assured these remarks remained measured, valid and totally justified given the damage some obscurantists wilfully cause to scientific progress, increasingly to the future peril of humanity and the planet. Krauss introduces an allegory about his wallet card which diagrammatically explains how the abundance of different elements in the universe verifies the Big Bang Theory. He notes that the card has little value because the usual kind of challenger of his proposition has usually made up his or her mind. Herein lays the challenge and, no doubt, fate of this book.
214 di 264 persone hanno trovato utile la seguente recensione
3.0 su 5 stelle A half-book and a half-pamphlet 12 febbraio 2012
Di Henri C. Ransford - Pubblicato su Amazon.com
Formato:Copertina rigida|Acquisto verificato Amazon
A slim volume that mostly covers well-trodden ground.

On the plus side, the author's compelling demonstration that, if they are around then, cosmologists of the far future applying impeccable science will inescapably draw all the wrong conclusions about the birth and genesis of the Universe, is fascinating.
Because by then they'll be unable to observe a number of things, such as any erstwhile neighbouring galaxies which will have firmly drifted out of sight, or to perceive, let alone measure, things like the residual cosmic radiation background, or dark energy. Even if some of these cosmologists somehow stumbled upon the right, seemingly far-out ideas, applying Occam's razor rules would firmly relegate the correct scenario to the kook fringe.

A very sobering thought.

On the minus side, the author insists throughout, without providing a shred of evidence or even without really envisioning alternatives, that dark matter comes from hitherto undiscovered particles - there are however many other, exotic possible scenarios for how dark matter arises (such as, amongst other possibilities, the nearby presence of other universes from our own, within a larger multiverse) but all these other possible sources are given short shrift. Positing an a priori scenario somehow does not look like very good science.....

As a review of how matter can arise from nothingness, this book is far too slim to be comprehensive - there is, for instance, only scant treatment of the 'quantum fluctuation' scenario first championed by Trion, or of the 'colliding membranes' scenario, or for that matter of Roger Penrose's interesting recent ideas, which remain largely ignored.

In brief, an interesting book which leaves an aftertaste of somehow having an ulterior agenda, perhaps a pamphlet against mindless religiosity rather than a bona fide, purely science book.
43 di 54 persone hanno trovato utile la seguente recensione
5.0 su 5 stelle Fantastic read! 16 gennaio 2012
Di W. T. Shiers - Pubblicato su Amazon.com
Formato:Copertina rigida|Acquisto verificato Amazon
Having read "Fear of Physics" - I was very much looking forward to this publication.

Mathematics (not being my strong suite) has challenged me in reading similar works by other authors. However - Krauss is a master at explaining concept so those 'not-so-mathematically-inclined' individuals such as myself can easily follow along (my struggle with complex mathematics hasn't hindered my interest in understanding the concepts provoking it's need).

Krauss readily states (more than once) that research is only as good as the data (sample size etc. as well as the tools available to achieve them). Based on what has been discovered to date - he's painted a conceptual picture of the beginning of the universe / our relative state within it / as well as what's in store for us in the future - while still admitting there are many questions that have yet to be answered.

Having seen some of his presentations online and subsequently experiencing his quick-wit (or dry to some I suppose - yet - with none-the-less) I very much look forward to the same within his writing. I wasn't disappointed. Perhaps a bit more subtle than his video presentations online but - I suppose it's important to remember that he's not writing a fictional comedy.

I very much appreciated this book... I found it incredibly thought provoking - more so than any other similar I've read in the past. If anything - it urges to the surface what's really important... That is - our time is limited.... and - all the garbage/politics and religious provoked stupidity that occur daily here on our planet is such a waste.

Many thanks to Mr. Krauss for this book. I look forward to future publications and - highly recommend others pick this up for a read.
97 di 126 persone hanno trovato utile la seguente recensione
4.0 su 5 stelle "How could our universe in all its complexity come into existence from nothingness? 10 gennaio 2012
Di Didaskalex - Pubblicato su Amazon.com
Formato:Copertina rigida
****.5
"Not only does physics tell us how something could have come from nothing, it goes further, by Krauss's account, and shows us that nothingness is unstable: something was almost bound to spring into existence from it. If I understand Krauss aright, it happens all the time:... Particles and antiparticles wink in and out of existence..." --Richard Dawkins
*

A couple of years ago, Krauss discussed the current status of the universe, and how it could have come from nothing. The lecture's video quickly became a YouTube sensation, of nearly a million viewers, and out of that success emerged the idea for his new book, "A Universe from Nothing: Why there is Something rather than Nothing," in which Lawrence Krauss recounts the recent developments in our conceptions of cosmology, with the help of modern physics, addressing the question of "Why there is something rather than nothing," and why this is in fact a scientific question rather than a philosophical or theological one.

"Science has changed the way we think about ourselves and our place in the cosmos, and the astounding progress of the last forty years has led us to the threshold of addressing key foundational questions about our existence and our future that were previously thought to be beyond our reach," says Krauss, ". . . , the public deserves to share in the excitement of our scientific quest to understand the biggest mysteries of our existence. As Steven Weinberg has stressed, science doesn't make it impossible to believe in God. It however makes it possible to consider a universe without one."

In an entirely statistical world of quantum physics, whatever change in quantum numbers, only permitted by the selection rules (that limit the transition probability from one eigenstate to another), define how the probability of transitioning from one level to another can happen. Experiments reveal that virtual particles are popping in and out of existence, allover the pseudo-conscious universe. Einstein's relativity provides that empty space can curve, and quantum physics permits matter to appear out of nowhere, given it also vanishes in no time. The reader has just to understand something about vacuum in space, as it is viewed in quantum field theory.

Since modern physics assumes that a vacuum is full of fluctuating electromagnetic waves, which can never be completely eliminated, they have been occurring before the dawn of time. All were thought to have quickly disappeared, but perhaps under the right conditions, if one lived long enough to give rise to the original event of the nascent universe: banging inflation. Thereafter, the original relatively infinitesimal volume expanded enormously to produce our present universe. Krauss recounts its history, underling the recent discoveries that not only increased our knowledge but also our ignorance (imperfect knowledge).

Krauss, a pioneering theoretical physicist, at the forefront of exploratory cosmology and particle physics, tackles the timeless enigma, articulating how cosmic physics has literally changed the response to this ancient question. Recent research into the origins of the universe explored by quantum mechanics, shows that our universe could arise from nothing. I enjoyed above all Richard Dawkins 'Afterword', that nothing expands the mind like the expanding universe, made known to the lay by Sir James Jeans before Dr. Krauss was even born. He concludes that, "Krauss's vision of the cosmology of the remote future is paradoxical and frightening!"

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