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{PDF} Why Does E=Mc2?: (And Why Should We Care?) WHY DOES E=MC2?: (AND WHY SHOULD WE CARE?) PDF, EPUB, EBOOK Brian Cox,Jeff Forshaw | 272 pages | 09 Mar 2010 | The Perseus Books Group | 9780306819117 | English | Cambridge, MA, United States Why Does E=mc2?: (And Why Should We Care?) by Brian Cox, Jeff Forshaw, Paperback | Barnes & Noble® NOOK Book. Home 1 Books 2. Add to Wishlist. Sign in to Purchase Instantly. Members save with free shipping everyday! See details. Brian Cox and Professor Jeff Forshaw go on a journey to the frontier of twenty-first century science to unpack Einstein's famous equation. Explaining and simplifying notions of energy, mass, and light-while exploding commonly held misconceptions-they demonstrate how the structure of nature itself is contained within this equation. Along the way, we visit the site of one of the largest scientific experiments ever conducted: the now-famous Large Hadron Collider, a gigantic particle accelerator capable of re-creating conditions that existed fractions of a second after the Big Bang. Jeff Forshaw is a Professor of Theoretical Physics at the University of Manchester, specializing in the physics of elementary particles. He was awarded the Institute of Physics Maxwell Medal in for outstanding contributions to theoretical physics. Related Searches. A nutritionist offers recipes and a diet program to aid in determining which foods cause View Product. Between You and Me. At the age of 87, Mike Wallace is a legendary figure in broadcast journalism. Now, after 60 years of reporting on important events around the world, he shares his personal stories about the incredible range of celebrities, newsmakers, criminals, and The authoritative guide to understanding and living with borderline personality disorder, now fully revised and The authoritative guide to understanding and living with borderline personality disorder, now fully revised and updated Millions of Americans suffer from borderline personality disorder BPD , a psychiatric condition marked by extreme emotional instability, erratic and self-destructive behavior, and tumultuous As a layman who is interested in Physics and finds some books too technical and many others lack of precision and depth, I found this book brilliant and very helpful. It is an easy-to-follow popular He has received many awards for his work promoting science, including being elected an International Fellow of the Explorers Club in , an organization whose members include NeilArmstrong and Chuck Yeager. Jeff Forshaw is professor of theoretical physics at the University of Manchester, specializing in the physics of elementary particles. He was awarded the Institute of Physics Maxwell Medal in for outstanding contributions to theoretical physics. From he worked in Professor Frank Close's group at the Rutherford Appleton Laboratory before returning to Manchester in Jeff is an enthusiastic lecturer and currently teaches Einstein's Theory of Relativity to first year undergraduates. He has co-writing an undergraduate textbook on relativity for Wiley and he is the author of an advanced level monograph on particle physics for Cambridge University Press. Cox and Forshaw began collaborating on scientific papers in , and have published on topics ranging from Pomerons to Higgs Bosons. Their most successful paper to date deals with physics at the Large Hadron Collider in the absence of a Higgs particle. Brian Cox , Jeff Forshaw. Why Does E=mc2?: (And Why Should We Care?) by Brian Cox, Jeff Forshaw, Paperback | Barnes & Noble® Why should we not need to catalog everything in huge databases and encyclopedias? Nobody really knows why nature allows itself to be summarized in this way, and it is certainly true that this apparent underlying elegance and simplicity is one of the reasons why many physicists do what they do. While reminding ourselves that nature may not continue to submit itself to this wonderful simplification, we can at least for the moment marvel at the underlying beauty we have discovered. Highly recommended if you have the itch to scratch, but a word of warning - if you're not interested in understanding why the theory of special relativity is so important, then this is not the book for you. The authors are intentionally avoided adding to the understandable hero worship that surrounds Einstein, and this is not biography-as-science: this is a maths and physics primer, kindly and interestingly written. View 1 comment. Aug 02, Max rated it really liked it Shelves: physics. They state upfront that their book is intended to be challenging. And it is, despite simplistic analogies and explanations tucked in between some pretty dense material. Einstein noticed that Maxwell had shown that the speed of light was a constant and from this he constructed the Special Theory of Relativity. Then Einstein thought about the fact that all objects fell at the same rate as Galileo demonstrated. He turned this idea into the General Theory of Relativity. Many complex topics are addressed along the way. The authors employ high school algebra and geometry but their manipulations can be intricate. The derivation is not done historically. They note that the observer in motion and stationary observer are interchangeable. Each can perceive the other as the one moving and the one for who time slows. There is no absolute motion as Galileo validated. Time, size and distance are observer dependent but the solution must be invariant, looking the same to all observers. To achieve this space and time must be combined into a single entity with four dimensions. The authors introduce us to Minkowski space which blends space and time. In it Cox and Forshaw use a modified Pythagorean formula that avoids going back in time which would violate the principle of causality, e. To measure distance in spacetime, the constant c, is introduced to calibrate. It is the universal speed limit and the speed of light. Everything moves through spacetime at this speed. If at rest the movement is all through time. If moving through space then time slows proportionately from the point of view of a stationary observer. Thus both moving and stationary observers agree on movement through the combined spacetime and invariance is achieved. To complete their derivation the authors introduce momentum, the product of mass and velocity. Momentum is a three dimensional vector in our everyday 3D world and four dimensional in the 4D world with the added component of time. The time component of the momentum vector in 4D space is mc , mass times the universal speed limit. Momentum is a conserved quantity as is mass which is equivalent to energy. Mass and energy are different manifestations of a single underlying physical quantity. Energy, mass and momentum form a spacetime object known as the energy- momentum four-vector. The details are in the book. The foregoing is just intended to give the flavor and flow of the book. The second half of the book is easier to digest as Cox and Forshaw give a broad overview of assorted physics topics. They describe the vast amount of energy in a tiny amount of mass and how that mass is converted, not just in nuclear reactions but in chemical reactions and other everyday phenomena. The authors discuss the Higgs boson as the origin of mass, even though this was just a prediction when they wrote the book. They even go back to the Big Bang and the disparity between matter and anti-matter. They then present the equation for the Standard Model, explaining what each term represents. They discuss how the model was put together and the various contributors, Glashow, Weinberg, Salam, Feynman, and Gell-Mann. Finally such a wide ranging review would not be complete without General Relativity to which the last chapter is devoted. I enjoyed this book. However the presentation was a bit disjointed. The authors write for readers at varying levels bouncing back and forth between simple explanations and more difficult detailed ones. They insert apologies to those for who the material might be too complicated and for those who might get bored. While the math itself was not overly difficult, following it in terms of the concepts it represented was more demanding. Still I applaud the effort to put some accessible math behind concepts that are deep and not intuitive. Regardless of level this is a book for a non-scientist reader with a strong interest in the subject. Cox and Forshaw said the book was meant to be a challenge. It was and that made it worthwhile. View 2 comments. Nov 30, Danielle rated it liked it Shelves: science-technology , biography , nonfiction , history. I was expecting, from the first few paragraphs of the book, that I was going to breeze right through this. It didn't really happen that way. I had to take college physics, which included the basics of relativity and quantum theories, so I probably have a bit more knowledge than the average non- physicist. All the same, there were areas of this book that just did not seem to click at all, even after reading paragraphs over and over again. Usually the parts that didn't click were the "easy" example I was expecting, from the first few paragraphs of the book, that I was going to breeze right through this. Usually the parts that didn't click were the "easy" examples such as how the distance between the moon and the Earth get further apart as the spin of the Earth slows. For anyone that doesn't know about conservation of rotational momentum, this is not an easy thing to figure out. Especially since they don't even mention momentum until 5 chapters later. The end of the book definitely seemed a little bit rushed, mainly due to the "just take our word for it" approach for what they deemed hard to understand topics.
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