AccueilGroupesDiscussionsPlusTendances
Site de recherche
Ce site utilise des cookies pour fournir nos services, optimiser les performances, pour les analyses, et (si vous n'êtes pas connecté) pour les publicités. En utilisant Librarything, vous reconnaissez avoir lu et compris nos conditions générales d'utilisation et de services. Votre utilisation du site et de ses services vaut acceptation de ces conditions et termes.

Résultats trouvés sur Google Books

Cliquer sur une vignette pour aller sur Google Books.

Chargement...

La big crunch (1994)

par Paul Davies

MembresCritiquesPopularitéÉvaluation moyenneMentions
750529,923 (3.68)3
The Last Three Minutes, by world-renowned physicist and author Paul Davies, is a wonderful, fun book - morbid to the core! - that combines the latest and most scientifically sound thinking about the ultimate fate of the universe with vivid scenarios of how it will feel to those of us still around when the end comes. Look, if you will, past that last day of sunlight into perpetual night. Experience the onset of stardoom - when the nuclear energy of burning stars is finally exhausted. Journey through those eons of time when black holes are the last major source of energy, devouring the scattered remnants of burnt-out galaxies. And then, perhaps, the big crunch - the last three minutes, when the temperature of the cosmos becomes so great that even atomic nuclei must disintegrate, when larger and larger regions of space are compressed into smaller and smaller volumes, when, as Davies writes, "the handiwork of the big bang, and of generations of stars in creating heavy chemical elements, is undone in less time than it takes you to read this sentence." Will this be the stage on which cosmic life plays out its final act? Or is the universe destined to end very differently and in the much less distant future, overwhelmed by a sudden and unexpected cosmic catastrophe? Indeed, will the universe end at all? If it endures forever, will humanity or our descendants, robots or flesh, find a way to survive through eternal night?… (plus d'informations)
Aucun
Chargement...

Inscrivez-vous à LibraryThing pour découvrir si vous aimerez ce livre

Actuellement, il n'y a pas de discussions au sujet de ce livre.

» Voir aussi les 3 mentions

Firmado por el físico de renombre mundial Paul Davies, este libro maravilloso y divertido combina las más recientes ideas científicas sobre el destino último del universo, proponiendo vívidos panoramas de las sensaciones que se vivirán cuando llegue el final. El lector es transportado al último día de luz solar y la llegada de la noche perpetua, experimenta el inicio del cataclismo estelar, una vez que se agota definitivamente la energía de las estrellas activas, y viaja por los eones de tiempo en los que los agujeros negros son la última fuente de energía importante, devorando los restos dispersos de las galaxias apagadas...
  Natt90 | Jul 4, 2022 |
This book was quite interesting. The cover pretty much sums it up. Ever since people figured out that the Universe is expanding, it immediately followed that it must have had a beginning. Before this, many scientists merely assumed that the Universe just lasted for an infinite amount of time. Given that the Universe had a beginning it must also end sooner or later. The matter of how it will end is up for speculation and there are several possible ways. None of these ways are particularly pleasant, but I can take solace in the fact that I will be long dead by the time all of this comes to pass. We're not talking about decades, in this case, we are not even talking about millennia. Billions of years must pass before any of this even comes close to happening. By that time the sun will run out of Hydrogen Fuel to use and will start to use Helium to fuel itself. At that point, the Sun will expand until it engulfs the orbit of Venus and the oceans will boil away.

Of course, we could also be destroyed by a giant asteroid or some other space object. This too would take a while, but we are protected in the sense that space is massive, and the Earth is relatively small in it. So then there are other ways for our Galaxy to Bite the Bullet, so to speak. It could collide into another Galaxy, There could be a Giant Black Hole that sucks us into itself, but none of these events are very likely.

The ultimate end of the Universe depends on two things. The first is the amount of mass in the Universe, and the second is the rate of expansion of the Universe. Now, these are generally called the Big Crunch or the Big Freeze. This is generally what I call them. Either the Universe collapses back on itself, or it expands so much that new stars cannot be born. All of the stars will eventually become either Black Holes or Black Dwarfs, massive chunks of matter that are mere husks of what they were.

None of this is really important, though, since I will be long dead by the time all of this happens, unless they find some way for me to become a Star Child a la 2001: A Space Odyssey. ( )
  Floyd3345 | Jun 15, 2019 |
Los últimos tres minutos, obra del físico y escritor Paul Davies, es un libro maravilloso y divertido que recoge las más recientes ideas científicas sobre el destino último del universo, transportando al lector a vivir las sensaciones que experimentará cuando llegue el final. El lector asiste al último día de luz solar y a la llegada de la noche perpetua. Experimenta el inicio del cataclismo estelar, una vez que se haya agotado definitivamente la energía de las estrellas activas, y viaja por los eones de tiempo en los que los agujeros negros son la última fuente de energía importante, devorando los restos dispersos de las galaxias apagadas. Y luego, quizá, podrá vivir el gran crujido, esos últimos tres minutos en los que la temperatura del cosmos se hace tan grande que incluso deben desintegrarse los núcleos atómicos, en que regiones cada vez mayores de espacio se comprimen en volúmenes cada vez menores, cuando «la obra del gran pum y de generaciones de estrellas se deshace en menos tiempo del que se tarda en leer esta frase». ¿Será éste el escenario en el que la vida cósmica represente su escena final? ¿O está destinado el universo a acabar de forma muy distinta y en un futuro mucho menos lejano, avasallado por una catástrofe cósmica súbita e inesperada? ¿Se acabará de verdad el universo? Y si dura eternamente, ¿hallará la humanidad, o sus descendientes, sean robots o seres de carne y hueso, el modo de sobrevivir a esa eterna noche? Los últimos tres minutos es uno de los libros de ciencia más originales que han aparecido en los últimos años, lectura fascinante de un científico plenamente acreditado.
1 voter kika66 | Mar 12, 2012 |
5 sur 5
aucune critique | ajouter une critique

Appartient à la série éditoriale

Vous devez vous identifier pour modifier le Partage des connaissances.
Pour plus d'aide, voir la page Aide sur le Partage des connaissances [en anglais].
Titre canonique
Informations provenant du Partage des connaissances anglais. Modifiez pour passer à votre langue.
Titre original
Titres alternatifs
Date de première publication
Personnes ou personnages
Lieux importants
Évènements importants
Films connexes
Épigraphe
Informations provenant du Partage des connaissances anglais. Modifiez pour passer à votre langue.
"And so some day, / The mighty ramparts of the mighty universe / Ringed round with hostile force, / Will yield and face decay and come crumbling to ruin." -Lucretius, De Rerum Natura
Dédicace
Premiers mots
Informations provenant du Partage des connaissances anglais. Modifiez pour passer à votre langue.
The date: August 21, 2126. Doomsday.
Citations
Derniers mots
Informations provenant du Partage des connaissances anglais. Modifiez pour passer à votre langue.
(Cliquez pour voir. Attention : peut vendre la mèche.)
Notice de désambigüisation
Directeur de publication
Courtes éloges de critiques
Informations provenant du Partage des connaissances anglais. Modifiez pour passer à votre langue.
Langue d'origine
Informations provenant du Partage des connaissances anglais. Modifiez pour passer à votre langue.
DDC/MDS canonique
LCC canonique

Références à cette œuvre sur des ressources externes.

Wikipédia en anglais

Aucun

The Last Three Minutes, by world-renowned physicist and author Paul Davies, is a wonderful, fun book - morbid to the core! - that combines the latest and most scientifically sound thinking about the ultimate fate of the universe with vivid scenarios of how it will feel to those of us still around when the end comes. Look, if you will, past that last day of sunlight into perpetual night. Experience the onset of stardoom - when the nuclear energy of burning stars is finally exhausted. Journey through those eons of time when black holes are the last major source of energy, devouring the scattered remnants of burnt-out galaxies. And then, perhaps, the big crunch - the last three minutes, when the temperature of the cosmos becomes so great that even atomic nuclei must disintegrate, when larger and larger regions of space are compressed into smaller and smaller volumes, when, as Davies writes, "the handiwork of the big bang, and of generations of stars in creating heavy chemical elements, is undone in less time than it takes you to read this sentence." Will this be the stage on which cosmic life plays out its final act? Or is the universe destined to end very differently and in the much less distant future, overwhelmed by a sudden and unexpected cosmic catastrophe? Indeed, will the universe end at all? If it endures forever, will humanity or our descendants, robots or flesh, find a way to survive through eternal night?

Aucune description trouvée dans une bibliothèque

Description du livre
Résumé sous forme de haïku

Discussion en cours

Aucun

Couvertures populaires

Vos raccourcis

Évaluation

Moyenne: (3.68)
0.5
1
1.5
2 3
2.5
3 20
3.5 3
4 22
4.5 2
5 8

Est-ce vous ?

Devenez un(e) auteur LibraryThing.

 

À propos | Contact | LibraryThing.com | Respect de la vie privée et règles d'utilisation | Aide/FAQ | Blog | Boutique | APIs | TinyCat | Bibliothèques historiques | Critiques en avant-première | Partage des connaissances | 204,498,275 livres! | Barre supérieure: Toujours visible