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Hidden In Plain Sight 2: The equation of the universe (English Edition)
 
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Hidden In Plain Sight 2: The equation of the universe (English Edition) [Format Kindle]

Andrew Thomas
5.0 étoiles sur 5  Voir tous les commentaires (1 commentaire client)

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Présentation de l'éditeur

You never knew theoretical physics could be so simple!

Why do things move? Why is the expansion of the universe accelerating? Is the universe a black hole? This exciting book considers some of the deepest and most important questions in physics.

Enjoy a thrilling intergalactic tour as Andrew Thomas redefines the force of gravity and introduces a brave new view of the universe!

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5.0 étoiles sur 5 "He's done it again!" 7 juillet 2014
Format:Format Kindle|Achat vérifié
It's difficult to know what to make of these two books:

Richard Dawkins' opinion of Julian Jaynes is (to paraphrase) "it's either easily the most important book of any type ever written, or it's just crackpot junk"...

Andrew Thomas is in the same category! Perhaps in, oh, 300 years we'll sort of have Andrew Thomas, and then a few minor people like Newton, etc.

AT THE LEAST, both books are an incredibly well-written, ultra-clear introduction to cosmological matters.

These two books completely blow away all the other cool "layman's amazing quantum stuff and cosmology" books. AND on top of that, again, Thomas' amazing theories (two of them now!) may just be, well .. the answer to everything.

Enjoy - you can't not enjoy these!
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Amazon.com: 4.5 étoiles sur 5  74 commentaires
29 internautes sur 30 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 Speculative, Informative and Fun Book to Read! 11 septembre 2013
Par Book Shark - Publié sur Amazon.com
Format:Format Kindle|Achat vérifié
Hidden in Plain Sight 2: equation of the universe by "Andrew Thomas"

"Hidden in Plain Sight 2" is an informative theoretical physics book that looks at a possible solution to the unsolved mysteries behind gravity, dark energy, and black holes. I found this book to be equally and in some respects even more interesting than his previous book, "Hidden In Plain Sight". In this rendition, Dr. Thomas looks at various unsolved problems in theoretical physics. Once again, I'm not a qualified physicist and can't make any assertions to the validity of the theories presented in this book but at the very least I welcome the author's engaging and accessible approach that makes such books enjoyable for the laypersons to read. This ambitious 170-page book includes the following nine chapters: 1. Introduction, 2. Gravity, 3. Cosmology, 4. Dark Matter and Dark Energy, 5. Black Holes, 6. The Soap Bubble Universe, 7. Gravity Revisited, 8. How to Create Your Own Universe, and 9. Conclusion.

Positives:
1. A well-written, succinct, accessible book for the masses.
2. A fascinating topic in the hands of an inquisitive mind.
3. Does a wonderful job of introducing concepts and/or scientific principles to the readers at an enjoyable and accessible level. Familiar concepts like entropy are explained in a conversational manner thus making it much easier for readers to understand. "Entropy can be thought of as the amount of disorder or randomness in a system."
4. A list of several of the most important unsolved problems in current theoretical physics including: unification of quantum mechanics and relativity, dark matter, dark energy, black holes, and an inflationary universe.
5. An excellent introduction that captures the essence in the book.
6. Good use of charts, illustrations and tables to assist readers.
7. Our current knowledge of gravity. "The reason behind the weakness of gravity is considered one of the great mysteries of modern physics."
8. A brief history of gravity. "In the Principia, Newton presented his law of universal gravitation for the first time. He stated that every mass in the universe attracted every other mass by means of the force of gravity."
9. Einstein's theory of relativity takes center stage. "In 1915, Einstein finally published the general theory of relativity which revealed how the curvature of spacetime depended on the distribution of mass and energy."
10. Excellent chapter on cosmology in which the author goes over the Big Bang theory, the shape of the universe, and the inflation hypothesis. Many interesting facts, "The Andromeda galaxy made the news in 2012 when it was announced that the mutual gravitational attraction between it and the Milky Way was so strong that Andromeda will collide with the Milky Way in about 4 billion years time."
11. A look at the impact of dark matter and dark energy. "We will examine the mystery of the missing 95%. We will see that there are two components to the missing substance, and these are known as dark matter and dark energy." Great stuff.
12. Some extraordinary discoveries are disclosed. Find out the scientists behind the accelerated expansion of the universe.
13. An enlightening chapter on black holes. "A star produces its energy via nuclear fusion, a process which fuses hydrogen nuclei together under immense temperature and pressure to become helium nuclei." "Einstein predicted the existence of black holes. The existence of black holes is now an accepted fact in astrophysics -- more evidence of the validity of general relativity."
14. The importance of fundamental principles.
15. Is the universe flat? Find out.
16. The author presents an interesting hypothesis. "The hypothesis presented in this book suggests that a stable equilibrium distance is not only possible, it is a certainty." "Considering the universe, it appears we could combine the logical principle and the conventional force of gravity together to produce a theory of modified gravity. This modified theory of gravity would act to move the radius of the universe to its equilibrium distance." Hmmm...
17. Provides a link to simulating your own universe.
18. Interesting and eye-opening conclusion that I won't spoil here.
19. Further reading section.
20. A tremendous Kindle value! Very few books give you so much for 0.99 cents!

Negatives:
1. Speculative theories that haven't been validated by the scientific community.
2. Very few endnotes.

In summary, this was a fun and succinct book on theoretical physics. Dr. Thomas builds up the foundation of his theory by educating laypersons on the fundamental principles of physics and then goes on to his eye-opening theory. Is the theory valid? I don't know but what is presented up to that point is in fact accepted by the scientific community and makes this book worthwhile to read. There are very few digital bargains better than this one, I recommend it!

Further recommendations: "Hidden in Plain Sight" by the same author, "Farewell to Reality: How Modern Physics Has Betrayed the Search for Scientific Truth" by Jim Baggott, "Spectrums" by David Blatner, "The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory" and "The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos" by Brian Greene, "A Universe from Nothing: Why There Is Something Rather than Nothing" by Lawrence M. Krauss, "About Time: Cosmology and Culture at the Twilight of the Big Bang" by Adam Frank, "Higgs Discovery" and "Warped Passages" by Lisa Randall, "The Grand Design" by Stephen Hawking, "The Quantum Universe: (And Why Anything That Can Happen, Does)" by Brian Cox, "The Blind Spot" by William Byers, and "The Fallacy of Fine-Tuning" and "God and the Atom" by Victor Stenger.
17 internautes sur 19 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 This book blew my mind 10 août 2013
Par Deon Opperman - Publié sur Amazon.com
Format:Format Kindle|Achat vérifié
I had never heard of Andrew Thomas until I read Hidden In Plain Sight. This sequel is outstanding. I feel it would be presumptuous for a layperson such as myself with a passion for physics, to offer a critique of Andrew Thomas's insights. It feels like sitting at a fireside with Einstein as he formulated his theory of General Relativity. The two books must be read in tandem, and his first Hidden In Plain Sight must be read first, as Part 2 builds on the theory offered in the first book. I strongly recommend this book. I shall reread both books many times in the coming months and years.
11 internautes sur 12 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 Errors in the text; questions raised 23 avril 2014
Par Roger W. Ward - Publié sur Amazon.com
Format:Format Kindle|Achat vérifié
In the past two weeks I read Hidden in Plain Sight and Hidden in Plain Sight 2. I have an MS degree in solid state physics from Purdue (1969). I worked my entire career in the quartz crystal field (mostly for sensor applications). I am not really conversant in the field of Cosmology, but I have had an interest in it, especially with the attention being given to the new discoveries in recent times.

However, just as Thomas, I have always been troubled by String Theory and any theory that involves multiverses (a nearly infinite number of universes being “created” every second—give me a break!). His two books present a very thoughtful, logically progressive, and easy to understand development of his theory of almost everything. Not being conversant in cosmology, I cannot find fault in his work. I await the consensus of his peers. But I must say, WELL DONE!

I made notes of comments and questions as I read book 2:

1. On page 74 of Hidden in Plain Sight 2 you left out the c2 term in Friedmann’s Acceleration equation. Otherwise, the density term cannot be added to the pressure term because the units don’t correspond. The equation should have (ρ + 3P/c2).

2. Why isn’t there a “hole” at the “center” of the universe caused by the Big Bang, if the Big Bang caused all of the mass-energy to “fly” away? Because of inflation, or your modified gravity theory? Why is the entire universe more-or-less uniform? Is it “spherical”?

3. One simplified description of the Big Bang I have heard is to think of galaxies being represented by raisins in the rising dough of a loaf of raisin bread—as the dough rises all of the raisins move away from each other. If that were the case, all the visible objects in the universe should be red-shifted. But, if the Andromeda Galaxy is going to collide with the Milky Way Galaxy in a few billion years, and other galaxies have collided (e.g. the Bullet galaxy), then this simple view is obviously not correct, but how then is it explained that some galaxies are approaching each other?

4. On page 85 you have a value for the mass of a black hole to be “as much as 450 times the mass of the Sun.” Then, on page 87 you have the mass of a supermassive black hole at the center of the Milky Way Galaxy “of about 4.3 million solar masses.” Why make the distinction? It’s confusing.

5. On page 89 you state “If one corner of an object is hot, then that heat will spread through the object so that the entire object becomes one temperature.” This is only true if the object is thermally isolated (including being isolated from black-body influences).

Thank you for two brilliant books that simplify and add a fundamentally new look at the most complicated topics in physics.
9 internautes sur 10 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 Not So Hidden after all! 6 août 2013
Par John Yarbrough - Publié sur Amazon.com
Format:Format Kindle|Achat vérifié
So very readable! The equations presented give the reader a solid intuitive grasp, yet clearly indicate the much more
difficult math on the professional level. All issues are addressed; the possibilities presented are intriguing,
challenging and, yes, exciting! Most exciting is the probability that young readers will here find compelling incentive to
further advanced education in math/physics.
8 internautes sur 9 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 The Revelation Continues 28 juillet 2013
Par Tom Moore - Publié sur Amazon.com
Format:Format Kindle|Achat vérifié
Building on the logical concepts presented in his first book, Dr Thomas adds some original thinking about the structure of black holes that points the way toward a simple model of the universe that is not obscured behind a veil of arcane equations. The book invites the intelligent, but mathematically limited reader to visualize a plausible model of the Universe. I have my own reservations about his original idea concerning black hole structure, but the book gets the reader of popular physics literature thinking in a new and delightful direction.
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