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Once Before Time : A Whole Story of the Universe

3.14  ·  Rating Details ·  96 Ratings  ·  17 Reviews
In 2000, Martin Bojowald, then a twenty-seven-year-old post-doc at Pennsylvania State University, used a relatively new theory called loop quantum gravity—a cunning combination of Einstein’s theory of gravity with quantum mechanics—to create a simple model of the universe. Loop quantum cosmology was born, and with it, a theory that managed to do something even Einstein’s g ...more
ebook, 309 pages
Published November 9th 2010 by Vintage Books (first published April 2009)
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Nov 22, 2010 Gendou rated it did not like it  ·  review of another edition
Shelves: non-fiction, physics
The first third of the book is a condensed and meager survey of physics up to the standard model. Sigh.

I'm not sure where the author is going with this, but he labels String Theory as "monotheistic" and Loop Quantum Gravity as "pantheistic"... yuck.

The random digressions into science fiction are jarring and confusing.
They butt against the scientific arguments in a way that can only be inferred as intentionally deceiving!

One chapter argues that entropy cannot be used to define the arrow of time.
Jun 20, 2011 G rated it really liked it  ·  review of another edition
Having finished the book I am surprised that it has a low rating. It is a good review of the state of current physics. To me it is one of the only books that gets to the bottom of the difference between String Theory and Loop Quantum Gravity without going into the mathematics. I don't think a book could go much further than this in reviewing physics without recourse to mathematics.

You have to be somewhat on his wavelength (no pun intended) to read this book with much joy or understanding. It is
Ami Iida
Dec 07, 2016 Ami Iida rated it it was amazing  ·  review of another edition
Shelves: physics
When does the universe continue?
When is at the end of the universe?
When is at the beginning of the universe?
Where is at the end of the universe?
What is any black holes? What is dark matter and dark energy?
The book answers these questions.

Richard Jowsey
Mar 25, 2012 Richard Jowsey rated it it was amazing  ·  review of another edition
Fantastic work! No math, ok, one wave-function, everything explained in plain english.
Jul 04, 2011 David rated it it was ok  ·  review of another edition
a physics prof describes the theory of loop quantum gravity, an alternative to string theory apparently, which proposes a contracting universe prior to the big bang and purportedly solves a problem faced by quantum mechanics + general relativity in explaining a "singularity".

As he acknowledges, there is currently no way of testing loop quantum gravity against observations, which lessened my enthusiasm for attempting to figure it out. Enthusiastic or no, my 10th grade physics from 35 years ago wa
Caztor Ssc
Jan 21, 2015 Caztor Ssc rated it really liked it  ·  review of another edition
Es una gran obra que nos actualiza de una manera amena la situación actual dentro de las teorías en física en camino hacia una teoría del todo o unificada. El autor muestra su gran cosecha en el campo de la física pero también nos muestra una capacidad de exposición apta para un público no muy inmerso en estos temas, además de los elementos de filosofía, teoría del conocimineto, epistemología y religión que han enriquecido la visión crticia que tiene sobre el trabajo teórico realizado.
Debo admit
Andy Huber
Sep 16, 2012 Andy Huber rated it it was amazing  ·  review of another edition


Somewhere i read about that the whole mathematik get changed by
him and his work...???

So i inscribied 2009 to the Astronomie Institut at the
University in Vienna and read the book :d

The stuff at University was nearly the same, so i

got the answer to my question

about the ... the integral from Bojowald :d

It is verry good written. Also all stuff is clearly
understandable and you can figer it out, what the
book is about and :d how to manage to live with
such tiny things.

Dec 31, 2011 Larry rated it it was ok  ·  review of another edition
This review has been hidden because it contains spoilers. To view it, click here.
Matt Young
Theoretical Physics intrigues everyone but nobody really knows anything about it. In the same vein as "The Elegant Universe" by Greene, Bojowald does a good job of introducing the laymen to a very new, and very advanced topic. You like String Theory? You like being the center of attention at cocktail parties? Learn about Loop Quantum Gravity and impress the guests.
Apr 20, 2011 Peter rated it it was ok  ·  review of another edition
I think it was a little above my head all in all. My favorite parts were when he went on little tangents about something in pop culture (or really nerd culture) that tied into his basic topic, such as explaining scientific issues with star trek technology.

Henrique Capeleiro Maia
This might be an interesting book, but you have to have a more thorough knowledge of physics. So, by rating as I did, I am not dismissing the book, but rather badly my lack of insight for missing out so much of what could possibly be a really great book.
Jan 22, 2015 Sharon rated it did not like it  ·  review of another edition
[Audiobook] Couldn't follow this book anymore. This guy's voice kept putting me to sleep!
Aug 20, 2013 Carlos rated it did not like it  ·  review of another edition
Todo parece muy poco convincente
Deedee Light
Jul 05, 2011 Deedee Light rated it did not like it  ·  review of another edition
The intro to this book indicates it's written for the common man. I would submit, not so. Complex read and at times brutal.
Trianna Weller
I quit after chapter 5.
Difficile ma interessante. Spesso mi sono un po' perso nelle spiegazioni più complesse ma ho comunque imparato cose nuove come la. quantizzazione dello spazio tempo!
Gary rated it it was ok
Jan 07, 2011
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Feb 27, 2016
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Jul 09, 2013
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Apr 29, 2016
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