Why Does E=mc²?

Why Does E mc The most accessible entertaining and enlightening explanation of the best known physics equation in the world as rendered by two of today s leading scientists Professor Brian Cox and Professor Jeff

  • Title: Why Does E=mc²?
  • Author: Brian Cox Jeffrey R. Forshaw
  • ISBN: 9780306819117
  • Page: 252
  • Format: Paperback
  • Why Does E=mc²?

    The most accessible, entertaining, and enlightening explanation of the best known physics equation in the world, as rendered by two of today s leading scientists.Professor Brian Cox and Professor Jeff Forshaw go on a journey to the frontier of 21st century science to consider the real meaning behind the iconic sequence of symbols that make up Einstein s most famous equatioThe most accessible, entertaining, and enlightening explanation of the best known physics equation in the world, as rendered by two of today s leading scientists.Professor Brian Cox and Professor Jeff Forshaw go on a journey to the frontier of 21st century science to consider the real meaning behind the iconic sequence of symbols that make up Einstein s most famous equation, E mc2 Breaking down the symbols themselves, they pose a series of questions What is energy What is mass What has the speed of light got to do with energy and mass In answering these questions, they take us to the site of one of the largest scientific experiments ever conducted Lying beneath the city of Geneva, straddling the Franco Swiss boarder, is a 27 km particle accelerator, known as the Large Hadron Collider Using this gigantic machine which can recreate conditions in the early Universe fractions of a second after the Big Bang Cox and Forshaw will describe the current theory behind the origin of mass.Alongside questions of energy and mass, they will consider the third, and perhaps, most intriguing element of the equation c or the speed of light Why is it that the speed of light is the exchange rate Answering this question is at the heart of the investigation as the authors demonstrate how, in order to truly understand why E mc2, we first must understand why we must move forward in time and not backwards and how objects in our 3 dimensional world actually move in 4 dimensional space time In other words, how the very fabric of our world is constructed A collaboration between two of the youngest professors in the UK, Why Does E mc2 promises to be one of the most exciting and accessible explanations of the theory of relativity in recent years.

    • å Why Does E=mc²? || ß PDF Download by Ë Brian Cox Jeffrey R. Forshaw
      252 Brian Cox Jeffrey R. Forshaw
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      Posted by:Brian Cox Jeffrey R. Forshaw
      Published :2019-01-22T02:49:23+00:00

    One thought on “Why Does E=mc²?

    1. Courtney Johnston

      I loved this book, and it wasn't just that cheeky Brian Cox going on all the time about being covered in tweed and chalkdust (somebody please hand me a fan).'Why does E=mc2' is my fifth book from the Royal Society science book shortlist. If Marcus Chown is magical cellulite cream, this is physics bootcamp - no corners cut, no let's-take-it-easy-today-shall-we. Cox and Forshaw don't just want to explain this equation - they want you to understand it, to understand its power (predictive and descri [...]

    2. Max

      Cox and Forshaw pack Einstein’s theories of relativity and much more into 250 pages. 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. Their underlying premise is “From the simplest of ideas”. 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 tha [...]

    3. Danielle

      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 [...]

    4. David Drent

      I would love to say that I understood every word and every example of this book, but unfortunately there were many times I felt like the concepts were far too complicated for me. I'm not an unintelligent person but my math and physics knowledge is rather old and rusty.I'll give it another 2 or 3 read through before making any firm judgements on the books. I feel I have learned something from this bookI just don't know what it is I've learned

    5. Kristin

      On a good day, high school physics class used to leave me feeling kind of (for lack of a better word) high. This book brought back that old, familiar feeling, but in an even better way. In the end, I walked away with a much clearer understanding of Einstein's theories of special and general relativity than I ever achieved slogging through high school physics. (I think our teacher must have been unable to articulate and synthesize the underlying questions that the equations sought to answer.) The [...]

    6. C

      Absolutely senseless. If he ever gets close to talking about the matter at hand, another long passage about a motorcyclist will pop up to "explain things"Look. The reason you use so many horrible analogies is because you are a horrible explainer! Convey it the first time, don't waddle about.

    7. Claudia

      Have you watchedWonders Of The Universewith Brian Cox? You should. And afterwards, when you’ll read this book, his voice and passion will accompany you all along. For me it wasn’t a breakthrough experience, but if one’s not familiar with the theory of relativity and physics concepts of space and time, it will be a more than pleasant reading, for it is written in a very accessible language, with day to day examples and a bit of humor on occasion.And you can even accompany your reading with [...]

    8. Trevor

      I’ve got rather mixed feelings about this one. I think writing a simple account of very difficult material is hard to achieve and so every such effort should be praised wherever it is found – but there is a fine line between simple and patronising and I’m not sure this one respects that line all of the time. It is clear these guys know their stuff, but I found it hard to concentrate on parts of this book as they would go into a longish chat about how hard the maths is and so how they have [...]

    9. Bob Nichols

      For those trying to nudge themselves into Einstein's world a little more, this book's title has great appeal. At some very general level, the equivalence of energy and mass can be understood, but the role of light ("c") and light squared remains a challenge. The authors do a good job of describing how mass converts to energy (heat/photons/light carry away mass; when wood burns, energy is released and mass is reduced). In the reverse, energy adds to mass. When energy (heat) is added to mass, mass [...]

    10. Merilee

      Superb review of latest in particle physics and spacetime. Cox explains things as clearly as possible, but I believe I will need to reread this before I could begin to explain any of it to anyone else. Check out Cox's (who's a prof at Manchester U and a scientist at CERN, working on the Large Hadron Collider) wonderful videos on YouTube.

    11. Brigitta

      (I never say this, but thank goodness I read this book in Hungarian. It was difficult enough without having to try and decipher what are the Hungarian equivalents of all the terms.)I have been meaning to read this book every since it came out in Hungarian, but now it seemed like just the light summer read I needed… which, of course, it isn’t, but I’m fairly certain that I’d find some parts of it very complicated even in winter, so what the hell. My main motivation to read this book was B [...]

    12. Rebecca

      Well, thank the gods that's over! I bought this as further reading on an iTunes U course I'm doing, thinking that it would offer further insight. The first half of the book is so patronising that I could barely bring myself to claw through it (but unfortunately I have a Magnus Magnusson approach to reading). This merely added to the annoying impression that the authors are explaining all the n a s t y, d i f f i c u l t s c i e n c e y - w i e n c e y v e r y s l o w l y t o y o u. B e c a u s e [...]

    13. John

      Why is E=mc^2? It was an enormous ask, and Cox and Forshaw were never going to deliver.It is easy reading, but unless you understand maths you won't get it at all.When I read on page 77 "although we did not prove (the maths)" I began to feel cheated, and then they tried to explain in several thousand words space-time vectors, which could have been done in two lines of maths, then I thought to myself it would have been much easier if they had used the maths throughout, and dispensed with all thos [...]

    14. Johann Coetzer

      this is a great read, very interesting, but it is not a book I would suggest to anyone who does not have a understanding of astrophysics, the book does start of easy to understand, but it does get complicated

    15. Jorge

      "In following the book up to this point, you may well be juggling a lot of mental balls as you read this sentence". Cox and Forshaw say this at some point halfway through the book, but it might as well be applied to my feelings when finishing it. I don't really know how to criticize, comment or even rate it (for the most of the reading I was pretty sure I would leave no rating at all). I started in August, read a couple of chapters and loved it; never had I understood relativity and physics so w [...]

    16. Rachel Welton

      There are some books that are enhanced by metamorphosis into audiobook, and others that need to remain firmly in the realm of the written word. Jeff Forshaw manfully reads out the equations but I couldn't manage to conjure them up in my mind's eye. The numerous analogies were enlightening, and I certainly feel I have learned things that I didn't know before, however often there was a big, unexplained leap from analogy to completion, possibly at the speed of light, or failing that at the square r [...]

    17. Kiril Valchev

      В "Why Does E=mc²?", британските физици Брайън Кокс и Джеф Форшо(?) се впускат в пътешествие през пространствено-времевия континуум, за да разкрият красотата и елегантността на (може би) най-известната формула във физиката. Стъпка по стъпка, на подходящ за неспециалисти ("лаик-friendly") [...]

    18. Amy

      Fantastic book if you're interested in physics or just want to know the actual science behind the worlds most famous equation. They authors do a fantastic job explaining everything, building on what's come before, so that buy the time to get the the complicated theoretical stuff you're not completely lost.

    19. Huw Evans

      Brain (sic) Cox is one of the current pin-up boys of science; ex pop musician, he is now a physicist working at the LHC in Switzerland when he isn't gadding about the world for his latest TV series or recording The Infinite Monkey Cage for BBC Radio 4 (listen if you get the chance - it is brilliant). There are many explanatory books about the theories of Relativity, most of which are so up there own backsides that they are unreadable unless you have a degree in theoretical physics. Cox and Forsh [...]

    20. Si

      I've been a fan of Brian Cox for years. His infectious enthusiasm, his ability to boil down complex concepts for an average dude without a physics degree, and his clear passion for what he does, make him compelling viewing.So after seeing him and Jeff Forshaw lecture on the subject of this book, I decided to get a bit more in depth and check out the book.It’s excellent. The guys are able to help me to understand and visualise relativity. This is easier said than done with such a counter-intuit [...]

    21. Steve

      From the man that bought us the 1997 New Labour election theme tune, comes a book about the origins and meaning of Einstien's E-Mc2.The main problem with the book is there is far too much going on about 'deeper understanding' and time spent telling us how things are being explained to us poor intellectually subnormal non physicists in v e r y s i m p l e t e r m s so we can keep up. If you can get over the condescending tone, and the jumbled narrative (too many tangents), the information is easy [...]

    22. Joanna

      I loved this book - it actually takes you through the processes of deriving e=mc2 and provides the necessary context on people and theory to understand the meaning behind what this equation means. Good detail. Good big picture. Also sheds some light on the experiments the lovely people at CERN are doing. I had to re-read several sections (some many times) to really get it but it was well worth it. The math gets pretty deep towards the middle (you can skip it, but it's there if you're inclined to [...]

    23. Nicol

      This was really well written for the lay person, covering the early history of physics and how we came to these equations and what we use them forbut I had to renew the book at the library for another month because one isn't enough to fully absorb all the information this book covers. I'm sure it's a breeze for an MIT student, but since it was written for my level of science (meaning zero) I need more time to wrap my brain around these concepts that are completely new to me (because my high scho [...]

    24. Robb

      I felt like this book went back and forth between being written in real simple terms to being hard to follow mathematics written in narrative form. It went back and forth between being exciting to being boring in its presentation of equations, and that's coming from a math major who enjoyed every math class I had in school. Some of the concepts in the book, which are considered by some to be basic and foundational to modern physics, are truly fascinating to ponder. I love stretching my brain thi [...]

    25. Mike

      The first book on Relativity/Quantum theory I've read that explains spacetime in a sensible way, in that it doesn't hide the (not particularly complex) mathematics. It makes it so much easier to understand if you have a passing knowledge of Pythagoras. Loved the explanations of how the counter-intuitive properties of the universe were derived from simple rules. Lots of 'ah-ha!' moments for me, especially when talking about "everything travels at the speed of light", and "distances are smaller at [...]

    26. Fernando del Alamo

      Este libro trata de intriducirnos a lo que es la Teoría de la Relatividad. Si bien es cierto que hay explicaciones que las hace bien, el conjunto del libro no ha sido del todo de mi agrado. He sacado de él algunas ideas, pero no creo que quien no sepa nada de relatividad pueda entender demasiado después de haber leído este libro. Quizás porque no me ha gustado mucho el estilo, pues creo que faltaban algunos gráficos explicativos o no sé qué decir del todo; pero no me ha quedado buen sabo [...]

    27. Ken Rideout

      Great treatment - of course they use the equation as an excuse to give a primer of just about all of modern physics. I really enjoyed their treatment of Noether's theorem and giving her due credit (rarely done). I couldn't believe they pulled off a non mathematical treatment of 4-vectors (although it may not have been worth it for the layperson). Some of the later chapters were a bid hurried, but their generalization of the speed of light to the speed of massless particles and their treatment of [...]

    28. Wayne Lincourt

      An exceptional work by Brian Cox and Jeff Forshaw. Formerly you had to be a physicist or brilliant mathematician to "get" the science of Einstein. They've made it understandable to the lay person and have opened the door for all of us to a greater understanding of our universe. To be perfectly honest, I didn't absorb it all in my first time through, although I did learn more than I knew going in. The second time, investing a little more concentration and taking notes, will get you there. If you [...]

    29. Russell

      Take one part physics, one part curiosity, one part humor and mix. The book is easy to read, the authors make the hard concepts possible to understand and grasp, and they tie it all together around the central theme of Einstein's famous equation. Heck, any book that can make the Standard Model of particle physics understandable in layman's terms is worth the ticket price, and they do more than that. I'm a geek, this book hit all the right buttons for me. Highly recommended.

    30. Mick Bordet

      The authors manage to more or less find a balance between explaining the building blocks of the universe and swamping the reader with pages of maths, though this does mean some detours here and there. An enjoyable read in general, keeping things fairly light despite the subject matter. I'm not sure the best examples are always taken to get some of the points across, and there are some concepts that are skipped over more, but overall it is a success.1

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