Amazon.com
As a scientist, Albert Einstein is undoubtedly the most epic among 20th-century thinkers. Albert Einstein as a man, however, has been a much harder portrait to paint, and what we know of him as a husband, father, and friend is fragmentary at best. With Einstein: His Life and Universe, Walter Isaacson (author of the bestselling biographies Benjamin Franklin and Kissinger) brings Einstein's experience of life, love, and intellectual discovery into brilliant focus. The book is the first biography to tackle Einstein's enormous volume of personal correspondence that heretofore had been sealed from the public, and it's hard to imagine another book that could do such a richly textured and complicated life as Einstein's the same thoughtful justice. Isaacson is a master of the form and this latest opus is at once arresting and wonderfully revelatory. --Anne Bartholomew
Read "The Light-Beam Rider," the first chapter of Walter Isaacson's Einstein: His Life and Universe.
Five Questions for Walter Isaacson
Amazon.com: What kind of scientific education did you have to give yourself to be able to understand and explain Einstein's ideas?
Isaacson: I've always loved science, and I had a group of great physicists--such as Brian Greene, Lawrence Krauss, and Murray Gell-Mann--who tutored me, helped me learn the physics, and checked various versions of my book. I also learned the tensor calculus underlying general relativity, but tried to avoid spending too much time on it in the book. I wanted to capture the imaginative beauty of Einstein's scientific leaps, but I hope folks who want to delve more deeply into the science will read Einstein books by such scientists as Abraham Pais, Jeremy Bernstein, Brian Greene, and others.
Amazon.com: That Einstein was a clerk in the Swiss Patent Office when he revolutionized our understanding of the physical world has often been treated as ironic or even absurd. But you argue that in many ways his time there fostered his discoveries. Could you explain?
Isaacson: I think he was lucky to be at the patent office rather than serving as an acolyte in the academy trying to please senior professors and teach the conventional wisdom. As a patent examiner, he got to visualize the physical realities underlying scientific concepts. He had a boss who told him to question every premise and assumption. And as Peter Galison shows in Einstein's Clocks, Poincare's Maps, many of the patent applications involved synchronizing clocks using signals that traveled at the speed of light. So with his office-mate Michele Besso as a sounding board, he was primed to make the leap to special relativity.
Amazon.com: That time in the patent office makes him sound far more like a practical scientist and tinkerer than the usual image of the wild-haired professor, and more like your previous biographical subject, the multitalented but eminently earthly Benjamin Franklin. Did you see connections between them?
Isaacson: I like writing about creativity, and that's what Franklin and Einstein shared. They also had great curiosity and imagination. But Franklin was a more practical man who was not very theoretical, and Einstein was the opposite in that regard.
Amazon.com: Of the many legends that have accumulated around Einstein, what did you find to be least true? Most true?
Isaacson: The least true legend is that he failed math as a schoolboy. He was actually great in math, because he could visualize equations. He knew they were nature's brushstrokes for painting her wonders. For example, he could look at Maxwell's equations and marvel at what it would be like to ride alongside a light wave, and he could look at Max Planck's equations about radiation and realize that Planck's constant meant that light was a particle as well as a wave. The most true legend is how rebellious and defiant of authority he was. You see it in his politics, his personal life, and his science.
Amazon.com: At Time and CNN and the Aspen Institute, you've worked with many of the leading thinkers and leaders of the day. Now that you've had the chance to get to know Einstein so well, did he remind you of anyone from our day who shares at least some of his remarkable qualities?
Isaacson: There are many creative scientists, most notably Stephen Hawking, who wrote the essay on Einstein as "Person of the Century" when I was editor of Time. In the world of technology, Steve Jobs has the same creative imagination and ability to think differently that distinguished Einstein, and Bill Gates has the same intellectual intensity. I wish I knew politicians who had the creativity and human instincts of Einstein, or for that matter the wise feel for our common values of Benjamin Franklin.
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Book Description
By the author of the acclaimed bestseller Benjamin Franklin, this is the first full biography of Albert Einstein since all of his papers have become available.
How did his mind work? What made him a genius? Isaacson's biography shows how his scientific imagination sprang from the rebellious nature of his personality. His fascinating story is a testament to the connection between creativity and freedom.
Based on newly released personal letters of Einstein, this book explores how an imaginative, impertinent patent clerk -- a struggling father in a difficult marriage who couldn't get a teaching job or a doctorate -- became the mind reader of the creator of the cosmos, the locksmith of the mysteries of the atom and the universe. His success came from questioning conventional wisdom and marveling at mysteries that struck others as mundane. This led him to embrace a morality and politics based on respect for free minds, free spirits, and free individuals.
These traits are just as vital for this new century of globalization, in which our success will depend on our creativity, as they were for the beginning of the last century, when Einstein helped usher in the modern age.
Customer Reviews:
Couldn't put it down!.......2007-10-18
This was one of our Book Club's selections. I looked at its size and procrastinated opening it. But, when I began reading this book, I couldn't put it down. The author makes his life seem very interesting and the science is put in laymans terms. I loved this book!
Amazing.......2007-10-10
The book combines insights into Einstein's family sphere, scientific endeavors , and internal life that end up providing an entertaining an insightful view o his life that turns out to be more than the sum of its parts. A great view into the life of the greatest man of the twentieth century.
A well orchestrated mix of personal history and revolutionary scientific discovery.......2007-10-09
A story of amazing power of reason in Einstein's early years but in the later years a sad story of his reason being foiled by of all things, scientific observations ("spooky" ones to be sure). When he died Einstein was still struggling with the idea that..."The reasonable thing just doesn't work.".
Excellent!.......2007-10-09
Excellently written and researched book. Very fascinating and engaging.
Even the scientific discussions were easy to understand.
I highly recommend this book.
A Must Read.......2007-10-07
A wonderful book which gives full and equal weight to both the man and the ideas which made him great, as well as the lasting place of those ideas in the history of scientific thought, if not of human thought itself. And on that latter point, the reader's debt to Isaacson is undoubtedly primarily for his continuing emphasis on Einstein's modus operandi: thought experiments, by which through the exercise merely of pure thought and a perspective unhampered by received wisdoms, a man was able to change millennia-old views of how we viewed the universe, and by extension, changed the universe itself. Whose thinking could remain uninfluenced by such a display of the power of thought?
Average customer rating:
- Ancient and Obsolete
- Unique,Idiosyncratic Approach
- A great book by a great physicist
- Superlative
- Old book that is hostile to the spirt of G.R.
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Gravitation and Cosmology: Principles and Applications of the General Theory of Relativity
Steven Weinberg
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ASIN: 0471925675 |
Customer Reviews:
Ancient and Obsolete.......2007-04-23
The beauty of general relativity (GR) lies in the connection it provides between geometry and physics. Weinberg's algebraic approach completely obscures this connection. Instead Weinberg teaches how to crank through complex calculations without any insight or geometric intuition. It is a fairly good book when compared to Misner-Thorne-Wheeler (another ancient text). However, by modern standards, Weinberg's book leaves much to be desired. Having been published in 1972, the book lacks modern examples in cosmology and quantum gravity. It also lacks a proper introduction to differential geometry and makes no mention of topology or other mathematical ideas prevalent in current GR research. In the 35 years since its publication, it has been surpassed by many much better books. For an excellent introduction to GR, read Carroll's book. For a more rigorous study of GR read Wald's book. For an easy introduction to GR, read Schutz's book.
Unique,Idiosyncratic Approach.......2006-09-15
Flashback to 1979.I Purchased Weinberg's Gravitation book and
Misner,Thorne, Wheeler's Gravitation book, simultaneously. Back then it took four weeks to get hold of a book by mail. The waiting made it all the more special when the books finally arrived. I still have those same two worn copies. Still re-read each. Sure, they are different viewpoints of General Relativity.
But, how greatly they both enrich the world. Together, those two
books started a pedagogic revolution. Weinberg has no
equal,cherish this book. Cherish MTW, also.
A great book by a great physicist.......2006-04-09
This is the best book written on general relativity, and I have read or at least looked at nearly every one of them. It is better than Wald's book because Steven Weinberg is a better physicist than Robert Wald. The only people who will not be pleased with it are those mathematicians who are looking to physics for elegant mathematics and not for physical insight.
A virtue of this book is that so far as I can see Weinberg has thought through general relativity for himself, and he has worked through all of the derivations himself - certainly the ones that I have checked - rather than quoting others.
This is not always the case for books in physics. Weinberg is careful, and I have yet to find an error in the book.
Superlative.......2004-12-14
Weinberg's writing is fantastic--direct, precise, and inspiring. His minimalist yet comprehensive approach, basing GR on nothing but the absolute necessities is beautiful. Virtually every word in the book is necessary and sufficient.
For GR, Weinberg's book is first among equals. Other reviews have critiqued his mathematics as old (Einstein's methods)--so what? It's easier and centerpieces the physics. Weinberg does well at making the complex as simple as can be reasonably made, a mark of a great expositor.
Old book that is hostile to the spirt of G.R........2004-12-08
There was a time when this book was probably very authoritative and useful (though I can't see myself preferring it over Hawking and Ellis, even then). Put it out of your mind: that time is gone. There are a slew of much better, much more modern books out there. Furthermore, this book is written from a perspective that attempts to filter a huge chunk of the geometry out of G.R., sullying a lot of the beauty of Einstein's central idea. If you are interested in cosmology, you can do a lot better looking at Hawking and Ellis, or one of the more recent books that will, due to their newness, emphasize the numerous advances in cosmology since the 70s. If you are interested in Relativity, PLEASE look at Schutze (beginner) or at Wald (graduate). Don't waste time and energy on this book.
That being said, there are some interesting advanced topics here, and a few things that I haven't seen elsewhere. This can be a useful reference for a researching relativist.
Book Description
Spacetime and Geometry: An Introduction to General Relativity provides a lucid and thoroughly modern introduction to general relativity. With an accessible and lively writing style, it introduces modern techniques to what can often be a formal and intimidating subject. Readers are led from the physics of flat spacetime (special relativity), through the intricacies of differential geometry and Einstein's equations, and on to exciting applications such as black holes, gravitational radiation, and cosmology. For advanced undergraduates and graduate students, or anyone interested in astronomy, cosmology, physics, or general relativity.
Customer Reviews:
Wordy and Wonderful.......2006-12-12
This is an advanced text, but all the same it is not particularly rigorous or dense, so it is in principle accessible to the beginner. With an easy authority, Carroll leads us on a wandering journey through the mystical lands of general relativity. This is very different from, and compliments nicely, the clarity and directness of Wald. As a student of GR, I use Wald for the bottom line on any subject, and Carroll for the random physical or computational insights that I invariably find in any section of the book. Carroll's prose is like music to the ear and I always enjoy myself when I decide to open up this book.
Be warned that there are lots of mistakes in this first edition--you might want to wait for the second one.
Also, his chapter on cosmology is better than any I've seen.
BY FAR the best book on GR.......2006-10-21
I am currently on the 4th chapter of Carroll's "Spacetime and Geometry" and thus far I am amazed at how clear it is. Sure there is a lot of math in it however that also is very clearly explained. In fact, I think that Carroll explains the differential geometry material better than any mathematician has in any book on the subject. If you want to learn general relativity, there is no getting around the math; sooner or later you'll have to learn it. I'd suggest, especially if you are self-studying the subject, to rather pick up this book and go through it than pick up a more "elementary" text and a book on Riemannian geometry to look at later.
(Although I do also highly recommend Kay's (Schaum outline) "Tensor Calculus" for self study. The prima donnas don't like Kay's book because it "doesn't have enough theory." I suppose if a freshman calculus book does not have the Lebesgue integral defined in ti they'll complain about that too.)
Because, you can always skip through certain sections if the math is too heavy and go back through it later. And like I wrote earlier, you won't find a better introduction to the mathematical material than here.
Carroll should be given the Nobel prize for this book. If not in Physics, then in literature. I'd give this textbook 10 stars if I could.
A nice blend of the ideas of physics with mathematics.......2006-04-11
Kudos to Carroll.
This book is an excellent INTRODUCTION to SR and GR for the graduate physics student as well as the graduate mathematics students.
Pure mathematics often loses sight of the ideas which motivated it and physics often loses the mathematical foundations from which it is built.
This book offers some level of mathematical formalism to the physics student while exposing the ideas motivating the mathematical concepts.
I particularly like how he builds up the mathematical machinery of GR by introducing sets then topology on this set giving a topological space. Now he adds in the ideas of a manifold which make this topological space look like Rn locally with the patches sewn together smoothly. The manifold comes equipped with tangent space, cotangent spaces and their product spaces giving tensor spaces. These are defined nicely with reference to component formalism as well as the multilinear algebra approach as maps from products spaces to the reals, etc. He delves into forms and tantalized the reader with deRham cohomology although doesnt go into it. He shows how these can be differentiated ( exterior derivative ) and integrated.
Now the metric is introduced giving a geometry. To this is added a connection which is independent of the metric and leads to notions of parallel transport and differentiation of tensors ( covariant derivative ). One sees that in a special case one can derive a unique connection from the metric ( Levi-Cevita ) which is used in GR.
Fibre bundles, Lie derivatives, pullbacks etc are introduced as needed.
He then presents some introductory GR material by applying the mathematics.
Great Book But Won't Get You To The Promised Land.......2005-12-14
My comments come with a few caveats.
1. This is my fourth GR book.
2. I'm not hardcore into physics. I'm not a physic grad and I'm reading GR for fun. I have a decent graduate math background but I've been corrupted with 10+ years in working in various roles software engineering, electronics engineering and marketing.
3. I assume that since you're considering buying this book, you're goal is to get at the "real" GR, not the watered down discover channel version.
With these caveats in mind, here are my comments.
First, on a scale of 1-5, I rank Carroll at level 3 in terms of math/physics maturity and thoroughness. Here is my full ranking of authors from my limited reading: 1. schutz 2. hartle 3. penrose 3. carroll 4. wald 5. physics journal articles
Second, using the rankings above, I recommend Carroll as the second port of entry. If you're comfortable with multivariable calculus, start with schutz (#1). You'll get warm fuzzies doing the toy exercises. But Schutz is tensor/math-lite. If you've had advanced calculus and geometry already, jump in with carroll (#3). But you'll be hard-pressed to find anyone else as polite to the reader. He won't prepare you for 80 percent of what's published. If you're ready to throw off the training wheels and jump dive into mainstream GR go with Wald (#4).
Note that Hartle (#2) is a good "tweener" book with feel-good exercises and some of the full-on GR equations at the end. I bet most instructors teaching a first year grad course would go with Hartle along with a dose of supplementary material.
Third, don't expect Carroll to be your last GR book purchase if you want to reach the promised land (see caveat #4). Living and breathing GR is found in physics journals and for that you'll need Wald or another advanced GR book.
good math chapters, not at beginner's level after that.......2005-03-07
I had a course based on that book and I've read chapters 1-6 (out of 9 chapters total) plus all the appendices. Also, I've solved some of the problems.
Please keep in mind my review is from a beginner point of veiw. Readers more experienced in GR may feel different but that book is supposedly written for beginners right?
The math chapters 2 and 3 are worth reading because they will teach you tensor analysis on manifolds in much clearer way than other books. The book makes a clear distinction between assumptions, choices (like working with a metric compatible connection), or derived facts. It is nice that the book makes a difference between a Christoffel connection and a generic connection. The appendices are worth reading too cause they will give you a feeling for some new to you math necessary for GR like pullbacks, Lie Derivatives, hypersurfaces etc.
Chapter 4 is worth reading too cause it makes clear that Einstein's equations are just the simplest guess out of many other possibilities. Also it shows how we generalize physical laws from special relativity to GR making it clear our choices are the simplest ones but not the only ones possible.
The chapters after that discuss applications of GR like black holes, gravitational radiation, cosmology etc. Of these, I've read only the black holes chapters 5 and 6 and I wasn't able to understand 100% what was goin on. The problem was that the book uses concepts that you still don't quite understand if you are a beginner like 'spacelike singularity' or 'conformal diagrams'. That is informative but the book doesn't provide the necessary level of detail and examples for beginners so you could really master such concepts and use them in your practise.
There are problems after each chapter but not the necessary beginners problems that increase your conceptual understanding of the theory. Instead, some of the problems are just tedious algebra of type 'find the curvature for some general form of the metric' for which specialists in the field use symbolic programs like Mathematica. Solving these by hand proves that you can take derivatives and you are a mazochist but not that you understand GR. Other problems are really relevant to your education but are not dirrectly connected to the discussion in the text. Because of that you have to solve them from scratch and it will take you ages ...
If you are a beginner like me, you should read the math chapters and all appendices of Carroll's book plus chapter 4. Then you should read a real book for beginners with a lot of examples how to apply GR in real calculations and how to understand it. For that I recommend James Hartle's "Gravity: An Introduction to Einstein's General Relativity" and Bernard Schutz's "A first course in General Relativity". After that hopefully you will understand the rest of Carroll's book better. My experience was that often I had to read Hartle's book in order to understand and solve a problem in Carroll's book.
Book Description
This book describes how understanding the structure of reality leads to the Theory of Everything Equation. The equation unifies the forces of nature and enables the merging of relativity with quantum theory. The book explains the big bang theory and everything else.
Customer Reviews:
The Real Deal.......2006-09-25
Although Mr. Wheatley is a little verbose in sections, his documentation of Zen Buddhistic Principles found throughout the disciplines of Mathematics, Physics, Theology, etc. forms a nice reference guide for anyone tuned into that wavelength. In particular, his explanation of how Godel's Theorem and Cantor's "Confusion" shed great light on the difference between GOD's Logic and Man's Logic should be a revelation to any undergraduate level math students who encounter these ideas for the first time. Curiously, Mr. Wheatley makes many misstatements about both Zen Buddhism Principles and the Bible, however. For example, by accepting the false biblical teaching of Original Sin, he misses the point that eating the proverbial apple gave Adam and Eve the ability to make Moral Discernments in fulfillment of GOD'S PERFECT PLAN. As proof, read Genesis 1 which states that Man and Woman were made in GOD's Image. Genesis 4 shows that Adam and Eve weren't the first humans on Earth at all, there were plenty of others by then. The allegorical meaning of the story of Eden, then, isn't that Adam and Eve were the first humans on Earth, but they were the first humans with the ability to make Moral Discernments (in GOD's Image). In fact, Moral Discernment is God's Unique Gift to Man, which is the basis of consciousness, not some Math Formula. But because the wages of the resulting, unavoidable sin are Death, many people foolishly try to return to Eden by: (1) living a sinless Life (2) by removing choice altogether by passing and enforcing strict Laws (3) by attempting to do away with Moral Discernment and the resulting consequences for our actions altogether by trying to remove Shame from Shameful actions. GOD is not some ethereal Man-In-Space, but is simply the Totality of all Real Things, The Set of All Real Sets. GOD's Love manifests itself from the amazing sub-atomic relationships that underly this magic Life all the way to the grandest of Macroscopic Scales, the Interconnected Totality itself. The Zen Buddhism connection can be found by simply superimposing the 0 symbol and the symbol for infinity (8 on its side) in Mr. Wheatley's supposedly "new" formulation that 1 = 0 x infinity. Superimposing them gives you the yin-yang symbol. A potential disadvantage of artificially separating the infinity from the zero, however, is that Mr. Wheatley is able to equate the entire expression to be equal to 1. This potentially might obscure the fact that the deepest meaning of the yin-yang symbol is that it is both 2 and 1 AT THE SAME TIME. His overall equation does preserve that important meaning by utilizing a single element on one side of the equation and two elements on the other side of his final TOE equation. This may be hard to see for some at first, however, which could potentially obscure the richest meaning of this beautiful symbol/equation. A much more GODLY TOE, in my opinion, comes from Euler, who discovered that e ^ (i * pi) - 1 = 0. When someone can explain that relationship, then they can say they know GOD.
A life changing experience??.......2005-06-13
This book is an easy read and does succeed in being somewhat thought-provoking. However, I am a little surprised at the awesome, "life changing" experience it apparently was for many of the readers. Wheatley's conclusions were interesting but nothing really new. All of his material should have passed through the mind of any thinking person without the aid of this book.
The reason I gave this book three stars is because he uses unneccessarily wordy ways of describing simple things. Also, the author and many other reviewers insist that Wheatley makes only one assumption. Wrong-his whole theory is one big assumption.
Overall though it was a very interesting and worthy book.
Should be Required Reading for everyone.......2004-06-26
This book will change your life. You will never think the same way you did before reading it.
I have a degree in chemistry and I think this book should be read by everyone in the sciences. Without a doubt, the best book I've ever read. Why and what are two of our best friends
A Very Important Book.......2004-01-26
I must preface my review by stating that I have never been so excited and moved by a book that I have wanted to contact the author. That is what I found myself doing upon reading this book. This book is just what its title says. The author does not "miss a beat" describing in great detail using practically every aspect of scientific knowledge from atomic structure through logic to quantum theory---we are even given a valuable explanation of Love. This text may be challenging to read for those unfamiliar with scientific terminology. And it can also be difficult for those with a science background, such as myself. However, for me it is well worth the work necessary to strive to understand the unfamiliar terminology. (I am continually learning from this book. I am presently on my third reread).
One of the author's main messages is "not" to believe anything without first verifying it with reality, as we know it. He calls it the "Personal Explanation Principle". He indicates that religions are just such belief systems that we as people "fall" victims of; because we do not verify the beliefs with the facts, as we know them, of reality. He gives a very detailed explanation of how the New Testament can be explored using his methodology.
The author methodically and meticulously walks us through his thought processes, which took 30 years to assimilate, of delineating the structure of reality and the nature of consciousness. Included in the "walk" are many of reality's phenomena made revelatory. An example of that, for me, would be the dual nature of light. It's particle/wave duality, which is explained as "functions". Also, when the author took me on the mental journey of "Setness" an exhilaration of the magnificence of life swelled up in me.
To me this is a very important book that should be read by all that are seekers of truth. It is for all those wanting to gain an understanding of the purpose for their existence, wanting to know where life is headed towards, and wanting to know who God is.
This book will enlighten and develop one's mind substantially. You will discover that this is our objective.
And yes, I contacted the author and he responded openly.
Illuminating!!!.......2002-12-30
This is a really great book. It combines philosophy and science in order to tackle a multitude of existential problems. The author's style of writing is fresh and alive, I recommend ths book to anyone interested in expanding the fronteirs of their understanding. Books I also liked are a Universe in an Nutshell by Steven Hawkings and Descent into Illusions by Paul Omeziri.
Book Description
The fourth edition contains seven new sections with chapters on General Relativity, Gravitational Waves and Relativistic Cosmology. The text has been thoroughly revised and additional problems inserted.
The Complete course of Theoretical Physics by Landau and Lifshitz, recognized as two of the world's outstanding physicists, is published in full by Butterworth-Heinemann. It comprises nine volumes, covering all branches of the subject; translations from the Russian are by leading scientists.
Customer Reviews:
Physics/math study.......2007-02-22
This is an absolute necessity for a graduate student! Studying math/physics. One of the very best available. I was very pleased in the condition of the book, and the price made it affordable for me.
The work of a master.......2006-12-26
Landau's approach to Classical Field Theory demonstrates his ability to be clear, concise, and elegant without drowning out the physics with math. I will say, however, that Landau requires a certain maturity to appreciate his style (same goes for Rudin's books of analysis). I would recommend this title to those with a working knowledge of classical E & M, vector/tensor analysis, and of special relativity. It is also wise to work through the author's Theoretical Mechanics to get a taste of their style. I believe, contrary to many, that this book is appropriate for self study if one is willing to do the work (not only the exercises but following along pencil in hand). I suggest reading a passage and then covering it up and then trying to do the derivations by hand. I also suggest the study of Hermann Weyl's Space-Time-Matter for more on GR. My only complaint is the quality of print, which has is not the fault of the authors. It is especially annoying at first.
Overrated for Learning.......2006-12-02
L&L, while elegant, is umotivated in the justifications that start their derivations. If the subject matter is grasped, then L&L is excellent for its directness. In brief, the volume is far from a learning tool.
My comment is not about the content, but about the edition........2006-08-15
First, I love this book, it is superb. If the comment is only on the contents, I'll give 5 stars without any hesitation.
However, one star is taken because I seriously despise the way the publisher treating this book, or, the entire classic Landau series. Some of the letters are vague. All letters are not dark enough, even a xerox copy is darker than this book! Some straight lines are broken.
Why can't the publisher make the classic of Landau be their own classic?
Russian School of Physics.......2006-03-27
I bought this book for a graduate E & M physics class and found it utterly useless. Maybe it would be good for a math class, but even then I doubt it.
Book Description
It is a widely known but insufficiently appreciated fact that Albert Einstein and Kurt Goedel were best friends for the last decade and a half of Einstein's life. They walked home together from Princeton's Institute for Advanced Study every day; they shared ideas about physics, philosophy, politics, and the lost world of German-Austrian science in which they had grown up. What is not widely known is that in 1949 Goedel made a remarkable discovery: there exist possible worlds described by the theory of relativity in which time, as we ordinarily understand it, does not exist. He added a philosophical argument that demonstrates, by Goedel's lights, that as a consequence, time does not exist in our world either. If Goedel is right, Einstein has not just explained time; he has explained it away.
Without committing himself to Goedel's philosophical interpretation of his discovery, Einstein acknowledged that his friend had made an important contribution to the theory of relativity, a contribution that he admitted raised new and disturbing questions about what remains of time in his own theory. Physicists since Einstein have tried without success to find an error in Goedel's physics or a missing element in relativity itself that would rule out the applicability of Goedel's results. Philosophers, for the most part, have been silent.
_A World Without Time_, addressed to experts and non experts alike, brings to life the sheer intellectual drama of the companionship of Goedel and Einstein, and places their discoveries -- which can only be measured on a millennial scale -- in the context of the great and disturbing intellectual movements of the twentieth century -- in physics, mathematics, logic, philosophy, and the arts. It contains, as well, a poignant and intimate account of the friendship between these two thinkers, each put on the shelf by the scientific fashions of their day -- and ours -- and attempts to rescue from undeserved obscurity the work Goedel did, inspired by Einstein, which made clear for the first time the truly revolutionary nature of the theory of relativity, which to this day is hardly recognized.
Customer Reviews:
more about philosophy than about physics or math.......2007-02-27
A World Without Time is a book about the friendship between Einstein and Godel that occurred toward the end of their lives. The friendship was fruitful in that Godel used Einstein's General Theory of Relativity to prove the existence of what are now called Godel Universes. Godel Universes are universes where time loops back on itself so, if you go sufficiently fast, you would end up back where you started in time. This is interesting but perhaps the most interesting aspect of the book for me was it's philosophical aspect. The author mentions the Vienna Circle and some concepts of philosophy such as positivism and ontology and epistemology which I found very interesting. I found the explanations of Godel's theories hard to follow but got the basic idea. I recommend this book for it's philosophical content. If you want to learn about Godel's Incompleteness theorem I recommend reading Godel, Escher Bach, An Eternal Golden Braid.
Should we dispense with clocks ?.......2007-02-12
The title of the book suggests time does not exist. The justification is a certain solution to Einstein cosmological equation, where the universe is rotating and time travel is possible. A path could reach into the past going around the universe.It is the Godel solution.
Modern cosmology is based on the Robertson Walker metric , or model,where there is a universal time. It fits the obseved universal expansion.The universe was born in a big bang fifteen billions years ago.
Goodel gave too much importance to his solution. After all any equation can allow many mathematical solutions which bear no relation to physical reality or fact.
The book is good reading with old and rare photos.It compelled me to reread "The Godel Solution" in Adler ,Bazin and Schiffer General Relativity.
Early in the century,Kurt Godel had laid a golden egg with his incompleteness theorem, pertaining to pure mathematics, causing some stir among Hilbert and Russell.But his attempt to abolish time, much later in 1949, felt in deaf ears among physicists and cosmologists.This is not about to change any time soon.
Yourgrau does an elegant work in rescuing an old story.It takes us through Europe and the beginnings of the Princeton Advanced Study Institute.
A World Without Time.......2007-01-23
Great book about Godel & Einstein. It tells much about their human side & their friendship. Does good job explaining some of their work.
Very bad book: a waste of your money.......2007-01-17
It is a heap op philosophy, not science. No formula, math, explanation, working examples whatsoever. Just small-talk to fill up the pages. This is NOT a physics book. I was lured into buying it thinking to get a complete textbook on Gödel's explanation of time. Forget it, this book is not worth your money. Go check the internet for PDF's or webpages containing the original publications of Gödel, they are there allright.
A World Without Time.......2007-01-04
I bought this book because I loved the cover. Everyone knows Einstein but it is amazing how few know the equally revolutionary Godel and still fewer know of their freindship. This is an invaluable book for those that (somehow) don't know about Godel's work. I didn't expect much from this book because I know of Godel's revolving universe time paradox. However, I found this book to be extremely interesting. The author's minimalist definition of Godel's theorm (syntax does not equal semantics) was worth the price alone. Unfortunatley the last chapter of the book is muddled in philosophic musings, since I am a Physicist I am less appreciative of pure philosophy.
Book Description
Relativist and constructivist conceptions of truth and knowledge have become orthodoxy in vast stretches of the academic world in recent times. In his long-awaited first book, Paul Boghossian critically examines such views and exposes their fundamental flaws. Boghossian focuses on three different ways of reading the claim that knowledge is socially constructed - one as a thesis about truth and two about justification. And he rejects all three. The intuitive, common-sense view is that there is a way the world is that is independent of human opinion; and that we are capable of arriving at beliefs about how it is that are objectively reasonable, binding on anyone capable of appreciating the relevant evidence regardless of their social or cultural perspective. Difficult as these notions may be, it is a mistake to think that philosophy has uncovered powerful reasons for rejecting them. This short, lucid, witty book shows that philosophy provides rock-solid support for common sense against the relativists. It will prove provocative reading throughout the discipline and beyond.
Customer Reviews:
Lucid book.......2007-08-13
Clear, concise and accessible arguments for a difficult topic. A great effort for the autor to remain dispassionate while offering a plausible and definite case against relativism and contructivism. Just awaiting for the next book of Boghossian, perhaps a longer one!
real knowledge!.......2007-05-21
The debate about truth has gone on for millenia, but Boghossian has done a superb job of summarizing the current debates about relativism. Considering that he is a former student of Richard Rorty, a book presenting a diametrically opposite point of view shows the kind of intellectual mastery that can only be generated from deep immersion in the point of view being criticized. For a 130 page book, there is tough sledding; but the advantage of a short book, is that you can read it a second time, and maybe even a third, without taking too much time away from your other pursuits of "the truth."
Effective Epistemic Polemic.......2007-04-23
This concise and well done book is devoted to rebutting relativistic anti-realist arguments that are apparently popular in some areas of the modern academy. I think Boghossian has a specific audience in mind. This book is not aimed primarily at his fellow philosophers nor the general reading public but rather at academics in humanities and social sciences where the relativist ideas have become popular. Boghossion points out that there is a widespread impression that modern analytic philosophy has undermined realist views and this impression provides legitimacy for the relativist points of view. As Boghossian also points out, these relativist views have actually been relatively unsuccessful in Philosophy Depts. and there are considerable doubts about their validity. Boghossian aims at presenting a fair characterization of relativist views and then providing an up to date critical attack. The philosopher Richard Rorty is a particular target, partly because of his prominence and partly because Boghossian regards him as expounding some of the most powerful relativist arguments. Boghossian examines relativist claims in three domains. These are relativism regarding the existence of 'facts," that is, a mind independent world, relativism concerning justification of knowledge (probably the strongest relativist argument and one articulated by Rorty), and relativism concerning rational explanation. The attack on relativism concerning rational explanation is the shortest and least satisfactory section, though still effective. I think he is generally fair to all these arguments and resists constructing straw man positions for his opponents. This criticisms of these positions are strong and he argues well for the general incoherence and incompleteness of relativist positions. If anything, I would say that he bends over backwards to be fair to relativist positions, omitting some strong arguments against Rorty and Thomas Kuhn.
What's your point, Dr. Boghossian?.......2007-03-28
For the educated layman, this book is too dense, despite its brevity. While I had little trouble following the train of thought, many points are belabored to the point of generating disinterest. Great difficulty in seeing the argument to its' conclusion without stifling a yawn and reaching for the No-Doz. An important topic, yes; but tracts like this will do little to generate discussion beyond the halls of academia. It reminds me of Harold Bloom's "How to Read and Why", which was so ill written for the layman that the title smacks of irony. Like that book, a major disappointent, an opportunity missed.
Well written, short and to the point.......2007-01-10
Post Modernism has got to be the most narcissicistic, self-centered philosophy ever dreamed up. An artist friend of mine once commented that, "There are many 'artists' I've met who claim to be surrealists, when in fact they just can't draw." This is the case for the Post Modernists as well. They like the think of themselves as Philosophers, when in fact they are just lazy. They hear "I think therefore I am," which is a statement of the limits of what we can know, and in their mind it becomes, "My thinking makes the Universe what it is today." Thanks for a short book to give to those lazy people -- because they would never get around to finishing a long one.
Book Description
Developing a theory that seamlessly combines relativity and quantum mechanics, the most important conceptual breakthroughs in twentieth century physics, has proved to be a difficult and ongoing challenge. This book details how two distinguished physicists and Nobel laureates have explored this theme in two lectures given in Cambridge, England, in 1986 to commemorate the famous British physicist Paul Dirac. Given for nonspecialists and undergraduates, the talks transcribed in Elementary Particles and the Laws of Physics focus on the fundamental problems of physics and the present state of our knowledge. Professor Feynman examines the nature of antiparticles, and in particular the relationship between quantum spin and statistics. Professor Weinberg speculates on how Einstein's theory of gravitation might be reconciled with quantum theory in the final law of physics. Highly accessible, deeply thought provoking, this book will appeal to all those interested in the development of modern physics.
Customer Reviews:
Tougher than the Lectures on Physics.......2007-03-21
When I read the lectures on physics, I was hoping to understand the reasoning behind the exclusion principle, and was disappointed to find that RPF felt that this was too complex for undergraduates, so he asked them to take it on faith for the moment.
Here he is talking to a more advanced audience, and explains it - he was right, it's tough. I'm still struggling to understand it, but I have confidence that this is a good book to help.
Recommended.......2007-01-17
From Richard Feynman, with love. Need more to be said? Read it, and read it again. This one can be read all over again once in a while and does not get boring.
Great Lectures. Requires Math Background........2006-02-19
This short book, Elementary Particles and the Laws of Physics, offers two lectures: Richard Feynman's The Reason for Antiparticles and Steven Weinberg's Toward the Final Laws of Physics. These two talks comprise the 1986 Dirac Memorial lectures at Cambridge University. Both presentations are cogently structured and make fascinating reading.
The talks were directed at an advanced audience, one that was familiar with quantum mechanics. Unlike many popular presentations by Feynman and Weinberg, these lectures are not suitable for the general layman.
However, these lectures are accessible to a persistent (perhaps, stubborn) layman with a calculus background and a deep interest in particle physics. I am not a physicist, but I did take my share of physics, chemistry, and math courses several decades ago. I encountered Schrodinger's equation in more than one class, but not relativistic quantum mechanics. However, having recently read Bruce Schumm's wonderful review of particle physics (titled Deep Down Things), I was sufficiently motivated to work my way through both Dirac memorial lectures.
Richard Feynman's lecture, The Reason for Antiparticles, is decidedly the more difficult. Feynman first demonstrates that quantum mechanics and relativity together require the existence of antiparticles, and then shows that they also establish the spin-statistics connection. Within a few pages advanced mathematical expressions appear and then persistently stay in the foreground for nearly the entire talk.
Although understanding Feynman's mathematics is critical for a full and deep appreciation of his exposition, with careful, repeated readings the stubborn layman will have sudden moments of enlightenment and can come away with a deeper understanding of antiparticles and spin statistics. For readers engaged in some self-tutorial readings, it may prove helpful to return occasionally to this classic Feynman lecture to qualitatively measure progress. I have no doubt that, on a deeper level, Feynman's lecture will similarly challenge and enlighten physics majors as well.
Steven Weinberg discusses his speculations on the shape of a final underlying theory of particle physics. Initially, his talk is deceptively easy as few mathematical expressions are used. However, about midway a Lagrangian density equation appears, ratcheting the difficulty several notches, as Weinberg considers a theoretical framework based on quantum mechanics and a few symmetry principles, that is also mathematically consistent with the Lagrangian dynamical principle. After discussion of some limitations of the Standard Model, Weinberg concludes his talk with a somewhat mathematical introduction to string theory.
Physics by two of the very best!.......1999-09-25
As usual, the best physics books are short and to the point, as is this one. The two Dirac lectures may serve as a perfectly good mini physics course all by themselves. I always enjoy a Feynman lecture, and this is no exception. He cuts to the chase without sacrificing the plot. But, I must say, in this case the Wienberg lecture is the better of the two. Weinberg's style has a particular grace & beauty about it that gently exposes the aesthetic meaning of the search for a picture of nature.
Two of the best give great insight into fundamentals........1998-11-18
Feynman yet again gives great insight into the laws of physics, this time exploring the reasons for existence of anti-particles, starting from the dirac equation etc.. Plus some really outstanding photographs, that fella Weinberg will be chuffed to have his name mentioned on the book cover!
Average customer rating:
- understandable to normal people
- I have mixed feelings (former scientist review)
- Splendid and readable account of QM
- No Strings Attached
- Join the dance
|
Dancing Wu Li Masters: An Overview of the New Physics (Perennial Classics)
Gary Zukav
Manufacturer: Harper Perennial Modern Classics
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ASIN: 0060959681
Release Date: 2001-07-24 |
Amazon.com
At an Esalen Institute meeting in 1976, tai chi master Al Huang said that the Chinese word for physics is Wu Li, "patterns of organic energy." Journalist Gary Zukav and the others present developed the idea of physics as the dance of the Wu Li Masters--the teachers of physical essence. Zukav explains the concept further:
The Wu Li Master dances with his student. The Wu Li Master does not teach, but the student learns. The Wu Li Master always begins at the center, the heart of the matter.... This book deals not with knowledge, which is always past tense anyway, but with imagination, which is physics come alive, which is Wu Li.... Most people believe that physicists are explaining the world. Some physicists even believe that, but the Wu Li Masters know that they are only dancing with it.
The "new physics" of Zukav's 1979 book comprises quantum theory, particle physics, and relativity. Even as these theories age they haven't percolated all that far into the collective consciousness; they're too far removed from mundane human experience not to need introduction. The Dancing Wu Li Masters remains an engaging, accessible way to meet the most profound and mind-altering insights of 20th-century science. --Mary Ellen Curtin
Book Description
With its unique combination of depth, clarity, and humor that has enchanted millions, this beloved classic by bestselling author Gary Zukav opens the fascinating world of quantum physics to readers with no mathematical or technical background. "Wu Li" is the Chinese phrase for physics. It means "patterns of organic energy," but it also means "nonsense," "my way," "I clutch my ideas," and "enlightenment." These captivating ideas frame Zukav's evocative exploration of quantum mechanics and relativity theory. Delightfully easy to read, The Dancing Wu Li Masters illuminates the compelling powers at the core of all we know.
Customer Reviews:
understandable to normal people.......2007-07-27
Read this book a few years ago and just bought it recently for my wife so she could understand what I was talking about sometimes, and to tie in with other reading she is doing that mentions quantum physics. It explains the basic concepts in clear terms, making much more sense out of a VERY abstract field. If you want to understand what it is about, this is a good place to start.
I have mixed feelings (former scientist review).......2007-03-31
I think the virtue of this book is that it challenges the established scientific paradigm that the universe is made of discrete particles. In other words, that matter is as solid as it seems and somehow energy is separate from matter. It also makes it clear that there are plenty of mysteries left to explore about the nature of the universe, even the physical universe. In addition, it stresses the interrelationships between things and what the implications might be with respect to different subject areas such as psychology.
While it's true Zukav doesn't explain the physics in depth, it does give a layman a sense of the physics is about, what it may mean and good food for thought about how this might relate to spirituality. The book is not a science text, it is a flight of imagination and a pretty good one. Much of the contents is highly speculative, but it is thought provoking and easy to follow.
If you are a scientist or a well-read layman in the area of physics, you might be disappointed. Also, if you have a deep knowledge of Eastern religion you might find it superficial and perhaps even a bit annoying. I think this books makes a sacrifice in terms of accuracy for depth and wonder. As such, it doesn't quite captivate either major audience. However, it is a useful starting point for many people into these often difficult to understand areas.
With respect to organization, I would agree that there is room for improvement. However, it not meant to be a textbook. I can give the author some wiggle room on this because in some ways, it is rather poetic and its value is to convey a sense of awe and wonder. In the regard, I think the author achieved his purpose, but sometimes at the expense of accuracy.
Splendid and readable account of QM.......2007-03-27
I'm not sure I'm entirely convinced by the author's point of view, but he certainly succeeds in giving you a better understanding of QM and the philosophical questions involved in it.
No Strings Attached.......2007-02-24
This dated book simplifies the historical journey of discovery that became quantum physics. The author proposes interrelationships among: science/scientists, Jungian psychology, eastern mysticism, philosophy & logic, & languaging. Readers vary greatly, finding the physics (even w/o math): daunting, wonderfully enlightening, or boring, depending on the reader. The author simplifies physics mostly in layman's terms, but esoteric ideas are the nature of modern physics--outside the box. As a former physicist, I find his attempt quite admirable; as a former electronics engineer, I wish he'd addressed the error factor. As for accuracy, I cannot personally say, but Jack Sarfatti (whom I highly respect) stated that he'd created/reviewed the physics. Zukav's definitions of technician vs. physicist are relevant too--technicians may be challenged by the open-minded, brain-storming nature of physicists. Many (e.g. Bohm) approach (if not reach) Buddhist viewpoints. I've extensively studied Buddhism & agree with Zukav overall--indeed, he quotes Bohr, Stapp, et al in support of an interrelated universe--but some of his extrapolations are hyperbolic overstatements--reminding me of Gershom Scholem, the historian who popularized Kabbalah. Neither kabbalist nor mystic, his historical analysis was superb; his personal opinions weren't.
IMHO great value lies in exploding the either-or way people tend to view Reality (even in Buddhist philosophy!) which, per Zukav, Einstein, Heisenberg, et al, is only our View of actuality. Unreality has been defined as reifying former conclusions--i.e. forming a conclusion, forgetting it was only a conclusion, & taking it as the truth. This resembles psychological neuroses which are often a child's ways of coping with the world unconsciously continued into the present. Conclusions are analogies & all analogies are wrong--or they'd be identities. Thus, the periodic table, phyla of biology, concepts of waves & particles ...are all inherently incorrect--an error factor must be invoked. If so, the platypus won't upset the biologist & light won't upset the physicist. If water can be gas, liquid, or solid, why can't light be multi-stable? As Zukav states: p. 134: "We often discredit what we know when it contradicts what we have been taught is possible," p. 311: Henry Stapp "Everything we know about nature is in accord with the idea that the fundamental processes of nature lie outside space-time," & p. 313-4 fn: "According to Sarfatti's theory, the wave function of the photon pair is at a `higher level of reality' than the wave function of the separate photons...Every step up to a new level of reality is a step to a new order--that is the definition of a level of reality. of our multilevel hierarchical reality, i.e. the wave functions of events which are `separate' on one level of reality are correlated at the next level up: `separate events' at that level are, in turn, correlates at the next level up, & so on." This definitely parallels the four worlds of Kabbalah & reasonably correlates with the "kayas" (bodies or dimensions) of Tibetan Buddhism.
Join the dance.......2007-02-04
What a pity the two responses to "The Dancing Wu Li Masters" chosen as "spotlight" reviews are both cynical and derogatory. I hope they don't deter others from reading further. Neither reviewer seemed to grasp the fact that Gary Zukav was not writing about physics: He was writing about mental mastery in the *context* of physics, going to great lengths to explain the implications of "Wu Li." The whole book, in fact, is based on five of the many representations of "Wu Li." Zukav even says in the introduction, "This is not a book about physics or eastern philosophies."
All the same, Zukav checked his facts out with "five of the finest physicists in the world" and footnotes their comments where they "punctuate, illustrate, annotate and jab at everything in the text." What more can you want? Those physicists even allowed themselves to be named, surely professional suicide if Zukav is substantially incorrect - as some reviewers maintain. Zukav also warns the reader that knowledge in physics at the time of writing was set to progress rapidly. What was accepted then would soon be made redundant as more information arose.
I feel really sorry for those who get no joy out of this book. I, for one, will go back to it again and again out of sheer delight. Zukav puts it this way: "Most people believe that physicists are explaining the world. Some physicists even believe that, but the Wu Li masters know they are only dancing with it."
All I can say is that, with this book, I danced too.
Book Description
SIX IDEAS THAT SHAPED PHYSICS is the 21st century's alternative to traditional, encyclopedic textbooks. Thomas Moore designed SIX IDEAS to teach students: --to apply basic physical principles to realistic situations --to solve realistic problems --to resolve contradictions between their preconceptions and the laws of physics --to organize the ideas of physics into an integrated hierarchy
Customer Reviews:
Very Good Book.......2004-05-20
This is a very good intro to special relativity. The author uses spacetime diagrams very skillfuly and explains even confusing topics very clearly. Overall, a very good book.
Key to a solid understanding of relativity.......2004-01-01
After finishing the first half of an advanced first year physics class, I was hopelessly confused with the subject of relativity as it had been presented by my teacher and by my text book. A few months later, I borrowed this book from my father and read it in about a week. When I was done with the book, I was amazed that I had ever been confused with such a simple and beautiful subject as relativity.
The author skillfully anticipates many possible misconceptions and clearly explains the correct principles. The book at times can be tedious, but only when reinforcement of fundamental ideas is necessary.
I've never read a physics book as good as this one.
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