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The Nature of Space and Time

4.08  ·  Rating details ·  1,068 ratings  ·  51 reviews
Foreword by Sir Michael Francis Atiyah, OM, FRS, FRSE, FMedSci FAA, HonFREng
Lecture 1 - Classical Theory {Hawking}
Lecture 2 - Structure of Spacetime Singularities {Penrose}
Lecture 3 - Quantum Black Holes {Hawking}
Lecture 4 - Quantum Theory and Spacetime {Penrose}
Lecture 5 - Quantum Cosmology {Hawking}
Lecture 6 - The Twistor View of Spacetime {Penrose}
Chapter 7 - Th
Paperback, 152 pages
Published October 8th 2000 by Princeton University Press (first published 1996)
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4.08  · 
Rating details
 ·  1,068 ratings  ·  51 reviews

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Manuel Antão
May 16, 2018 rated it it was amazing
Shelves: 2018, favorites
If you're into stuff like this, you can read the full review.

Shut the Fuck Up and Calculate (Or Not): "The Nature of Space and Time" by Stephen Hawking and Roger Penrose

"I have emphasized what I consider the two most remarkable features that I have learned in my research on space and time: (1) that gravity curls up space-time so that it has a beginning and an end; (2) that there is a deep connection between gravity and thermodynamics that arises because gravity itself determines the topology of
Mohamed al-Jamri
Mar 15, 2016 rated it liked it
قرأت نصف هذا الكتاب فقط لأن النسخة المسموعة لدي لا تحتوي إلا على الأجزاء التي كتبها هوكنج بينما الأجزاء التي كتبها بنروز والجزء المشترك غير موجودة

لفت نظري في الكتاب في هو انتقاد هوكنج لنظرية الأوتار الفائقة وهو أمر أقرؤه له لأول مرة وإن كان نقدًا سريعًا في سطر واحد فإن كان لاذعًا حيث اختار عدم طرح النظرية لسببين الأول هو أنه لا توجد مشاهدات تؤيدها والثاني أنها غير واضحة أو جميلة رياضيًا.
Larka Fenrir
"Io non chiedo che una teoria corrisponda alla realtà perchè non so quale sia questa realtà." Stephen Hawking

I momenti più belli passati leggendo questo dibattito tra Stephen Hawking e Roger Penrose, dibattito avvenuto nel 1994 all'Isaac Newton Institute for Mathematical Sciences dell'Università di Cambridge:
1. almeno è in italiano?
2. Qualcosa capirò, tra tutte queste formule e leggi date per scontate...
3. Nope.
4. NOPE.
5. Lo rileggerò quando sarò meno capra...
6. *arrivata a pagina 130* "
albin james
Apr 30, 2015 rated it it was amazing
Rows and flows of angel hair
And ice cream castles in the air
And feather canyons everywhere
I've looked at clouds that way

But now they only block the sun
They rain and snow on everyone
So many things I would have done
But clouds got in my way

I've looked at clouds from both sides now
From up and down, and still somehow
It's cloud illusions I recall
I really don't know clouds at all

Moons and Junes and Ferris wheels
The dizzy dancing way you feel
As every fairy tale comes real
I've looked at love that way

May 07, 2008 rated it really liked it
Recommends it for: students of physics
Considerably more technical than either Hawking or Penrose's lay material (A Brief History of Time etc.) If you're seeking an introduction to the controversy behind Hawking's quantum gravity speculations (Hawking radiation, the no-hair theorem) then this is a good start. Is quantum information lost in black hole evaporation? There are still no solid answers to the questions posed here.
Lance Schonberg
Oct 23, 2016 rated it liked it
Shelves: read-in-2016, physics
Up front: this book is not for everyone. I’m actually not certain it was for me. I haven’t really studied physics since the courses I took in the early 1990s in university. This was originally written a few years later, but assumes more than merely a rough knowledge of Relativity and Quantum mechanics – you actually need something more than just a basic introduction to really grasp what’s going on here.
But, armed with the internet, I persevered, more or less.
The science may be a bit dated, but s
Caitee Nigro
Feb 28, 2014 rated it really liked it  ·  review of another edition
This book was recommended to me by a good friend a while back, who insisted I purchase my own copy because he couldn't stand to part - even temporarily - with his. So I did. Maybe a month later, co-author Sir Roger Penrose spoke at a local university and I was fortunate enough to see him, as well as have my very untouched copy of The Nature of Space and Time signed by him. Only recently did I read it, and I'd be lying if I said I could comprehend more than half on my own.
Reading this book, more
Artemis Fowl
Mar 27, 2015 rated it really liked it
We can understand the cosmos ? Will we ever find a general pattern by which explain what surrounds us ? Relativity and modern quantum theory will never get to a unification ? Think about the cosmos in terms of how much is the right way ? Why time flows in only one direction ? Stephen Hawking and Roger Penrose have charged with the daunting task of being able to give some clarification and some certainty about questions of this magnitude by comparing their ideas and reflections on cosmology, quan ...more
Apr 27, 2011 rated it it was ok
Some of this information is dated, which is to be expected reading it so long after it was written. I could follow most of the math, but was disappointed by the lack of variable definition. Penrose's writing was much more clear than Hawkings and I believe I'll search out some of his writing on the topic the next time I approach this subject.
Sarah Khalida
Dec 14, 2016 rated it liked it
And all those mathematical equations and terms like Lagrangian and Eulers numbers which I learned in calculus back in undergrad emerged. A very technical read - I skimmed through most of it and highlighted the 'absorbable parts'. More Stephen Hawking in the future for me!
Peter Mcloughlin
A seminal collection of papers from Hawking and Penrose from the 1970s. Both Physicists worked or are working in the field of General Relativity and the papers are stabs at Quantum Gravity, Black Hole, Physics, The early big bang and whether or not it is a spacetime singularity and Black Hole Entropy and Hawking Radiation. These ideas show up all over the place in popularizations of theoretical physics and cosmology. I looked at the papers. They are admittedly above my level of expertise. I didn ...more
Maurizio Codogno
Vent'anni fa Stephen Hawking e Roger Penrose hanno tenuto una serie di conferenze per raccontare come loro pensavano si potessero mettere insieme la teoria della relatività generale e la teoria quantistica dei campi. Non che ci si sia riusciti nemmeno ora a farlo, intendiamoci. Ad ogni modo questo libro raccoglie il testo di queste lezioni. Ve lo dico subito: se non avete studiato fisica a livello universitario non ci capirete molto, o almeno io non sono riuscito a cavarci molto, anche perché la ...more
Wanyoung  Kim
Mar 07, 2018 rated it really liked it
Lots of diagrams. Has a lot of loaded philosophical statements that were useful when writing a thesis. Helps to explain singularity, cosmic censorship, etc.
Jun 12, 2011 rated it it was ok
"Time is the fire in which we burn." Delmore Schwartz

"...time is a companion who goes with us on the journey and reminds us to cherish every moment, because it will never come again." Jean-Luc Picard

I found the information in this set of 3 lectures to be somewhat interesting but because I am not a student (or practitioner) of science I found it to be a bit too specific to the field of physics/quantum mechanics/advanced maths/etc. for my general interest.

That said, one big problem I have with thi
E' difficile definire questo libro un libro di divulgazione. In realt� si tratta di una serie di lezioni (tre a testa pi� una discussione finale) in cui gli autori dimostrano le proprie teorie in merito alla natura dello spaziotempo attraverso lo studio delle singolarit� nell'ambito della meccanica quantistica e della relativit� generale. Per farlo fanno ampio uso di strumenti matematici molto complessi. Per comprendere appieno le dimostrazioni � necessaria una conoscenza specialistica di matema ...more
Jan 31, 2009 rated it did not like it  ·  review of another edition
I gave it a good college try, but was immediately swamped by the intense theoretical physics and deep mathematics involved. As a series of lectures between the two physicists as they voice disagreements about the nature of the universe, it was interesting to be a sort of fly on the wall, to see what these big brains talk about when the rest of us aren't around. On the other hand, they're discussing these things at their own level and not the level of a layman, so one might as well be a fly on th ...more
José Uría
Nov 17, 2016 rated it it was amazing  ·  review of another edition
Un libro sólo para especialistas. Repito, sólo para quienes tengan conocimientos de las matemáticas de la relatividad general y los fundamentos de la mecánica cuántica. No hace falta ser experto en gravedad cuántica para seguir las argumentaciones, ni mucho menos. De hecho, cuando Hawking habla para otros físicos es un divulgador de primera, capaz de presentar temas abstrusos de un modo claro y conciso, todo lo contrario que hace en sus nefastos libros de divulgación popular. Y Penrose saca much ...more
Sep 13, 2010 rated it liked it
This is collection of essays is an argument between Hawking and Penrose about the origin and ultimate fate of the universe, plus some entropy notions about black holes. I will say this: Hawking throws equations out there like you flat out know what he's talking about. His disclaimer is that he assumes you know some math and quantum mechanics. The QM arguments were easy enough, and while I've seen some topology before, I wasn't hugely familiar with GR, so his essays were sometimes hard to follow. ...more
Hugo Rodrigues
Aug 27, 2012 rated it really liked it
Este livro é um conjunto de ensaios escritos por Roger Penrose e provados (acabados) pelo Stephen Hawking, embora não concordem totalmente um com o outro, provaram que as singularidades(buracos- negros) resultam do colapso de um estrela (sol Gigante), um livro muito interessante...
Jun 04, 2011 rated it liked it
As much as I enjoyed the concepts that were meticulously laid out in this book; it hurt to read. The book required a lot from the reader to understand and keep up with the complex theories, unless of course you brought along your PHD in experimental physics and cosmology, which I did not.
Jan 01, 2016 rated it it was ok  ·  review of another edition
Not good. Notes from a Cambridge series of lectures. Colloquium level for PhDs in Quantum Gravity and Cosmology. Terms are not explained. Equations are not explained. Familiarity with 4 spheres, deSitter spacetime, Euclideanization of spacetime is assumed.
Dec 05, 2009 marked it as to-read
I am not sure how some read this book, but as an undergrad physics student, all I could read are the first couple of pages before the 1st equations.
Gary Levin
Jul 23, 2012 rated it it was amazing
Shelves: science
Yet another Great book by Stephen Hawking!
Extremely nice and clear book. It may be better especially if one knows well about the subject matter, as it is written more in debate format.
Aug 08, 2012 rated it liked it
the 1st 10 pages are difficult to go through without a course in GR... the figures alone are frightfully intimidating...
Shane Hall
Not for the novice! While I was able to follow the broad points, the descriptive mathematics that comprise the majority of the work was well out of my league. Math textbook, here I come...
Oct 01, 2016 rated it liked it
Interesting but extremely, extremely confusing.
Brendan  McAuliffe
May 06, 2011 rated it it was ok
Too much advanced mathematics for me, but, it still all comes down to that stupid cat ~
Kim Zinkowski
Nov 14, 2017 rated it liked it
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  • The Last Three Minutes: Conjectures About The Ultimate Fate Of The Universe
  • The Meaning of Relativity
  • Hiding in the Mirror: The Mysterious Allure of Extra Dimensions, from Plato to String Theory and Beyond
  • Once Before Time: A Whole Story of the Universe
  • The Infinity Puzzle: Quantum Field Theory and the Hunt for an Orderly Universe
  • The Book of Universes: Exploring the Limits of the Cosmos
  • The End of Time: The Next Revolution in Our Understanding of the Universe
  • Entanglement
  • The Inflationary Universe: The Quest for a New Theory of Cosmic Origins
  • Galileo: A Very Short Introduction
  • Einstein's Telescope: The Hunt for Dark Matter and Dark Energy in the Universe
  • The Life of the Cosmos
  • Cycles of Time: An Extraordinary New View of the Universe
  • Before The Beginning
  • Spacetime and Geometry: An Introduction to General Relativity
  • Superconductivity: A Very Short Introduction
  • Time Travel in Einstein's Universe: The Physical Possibilities of Travel Through Time

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Stephen William Hawking was born on 8 January 1942 in Oxford, England. His parents' house was in north London, but during the second world war Oxford was considered a safer place to have babies. When he was eight, his family moved to St Albans, a town about 20 miles north of London. At eleven Stephen went to St Albans School, and then on to University College, Oxford, his father's old college. Ste ...more
“In a sense the debate between Penrose and Hawking is a continuation of that earlier argument, with Penrose playing the role of Einstein and Hawking that of Bohr.” 1 likes
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