Free read ↠ uantum Space ô PDF eBook or Kindle ePUB

Free read uantum Space

Free read ↠ uantum Space ô PDF, eBook or Kindle ePUB ¾ ❰PDF / Epub❯ ☀ uantum Space Author Jim Baggott – Today we are blessed with two extraordinarily successful theories of physics The first is Albert Einstein's general theory of relativity which describes the large scale bL the visible constituents of the universe out of collections of uarks electrons and force carrying particles such as photons The discovery of the Higgs boson at CERN in Geneva is only the most recent of this theory's many triumphsBut while they are both highly successful these two structures leave a lot of important uestions unanswered They are also based on two different interpretations of space and time and are therefore fundamentally incompatible We have two descriptions but as far as we know we've only ever had one universe What we need is a uantum theory of gravityApproaches to formulating such a theory have primarily follow. Reality is what it is One day we will figure out if fundamentally it is in line with what loop uantum gravity posits or what string or some versions of M theory say it is or something totally different For the folks of this generation chances are uite high that this uestion remains unresolved The best the non scientists can hope for are books on various proposals that keep explaining what these theories imply the latest achievements in the workexplanations and the path ahead uantum Space is one in a string of books on the loop uantum gravity theory with a lot of value for interested readers at this point It is incomplete and unresolved like the underlying theory Its explanations are partial often mindbogglingly complex and speculative like the theory it discusses The author nearly overlooks discussions on where it could be wrong or the genuine reasons why many are drawn away from it to the competing explanation just like the fans of the string versions in the way they ignore LG Casual readers who want to develop a good understanding of potentially unifying scientific theories will need to read many books that try to explain this from some particular viewpoint uantum Space will be a good member of any such collection of a few dozens The author is passionate about LG has some great explanations of difficult concepts and embellishes the book with the real life stories of the founders of the field

Read & download ☆ PDF, eBook or Kindle ePUB Ú Jim Baggott

Today we are blessed with two extraordinarily successful theories of physics The first is Albert Einstein's general theory of relativity which describes the large scale behaviour of matter in a curved spacetime This theory is the basis for the standard model of big bang cosmology The discovery of gravitational waves at the LIGO observatory in the US and then Virgo in Italy is only the most recent of this theory's many triumphsThe second is uantum mechanics This theory describes the properties and behaviour of matter and radiation at their smallest scales It is the basis for the standard model of particle physics which builds up al. There's no doubt that Jim Baggott is one of the best popular science writers currently active He specialises in taking really difficult topics and giving a in depth look at them than most of his peers The majority of the time he achieves with a fluid writing style that remains easily readable though inevitably there are some aspects that are difficult for the readers to get their heads around and this is certainly true of his latest title uantum Space which takes on loop uantum gravityAs Baggott points out you could easily think that string theory was the only game in town when it comes to the ultimate challenge in physics finding a way to unify the currently incompatible general theory of relativity and uantum theory Between them these two behemoths of twentieth century physics underlie the vast bulk of physics very well but they simply can't be put together String theory and its big brother M theory which as Baggott points out is not actually a theory at all but simply a conjecture has had much written about it But the main alternative theory loop uantum gravity has had far less coverage As I mentioned in another review and Baggott also picks this up in one whole book on gravity loop uantum gravity is only mentioning in an endnote Yet in many ways loop uantum gravity has a lot going for it than string theoryOne major strand of uantum Space is a biography of two key players in the field Lee Smolin and Carlo Rovelli both good writers for the general public in their own right but neither has been able to come close to what Baggott does in trying to make the ideas of loop uantum gravity accessible at a deeper level than a summary hand waving description It’s also the first complete and approachable account I’ve seen of how both approaches to a uantum theory of gravity were derived The only downside of the way it's structured is that I think if you’re going to be comfortable with the level of detail Baggott gives you probably don’t need the first 100 pages or so giving background on uantum theory and general relativityMy only real concern apart from that unnecessary opening material which makes the book a little too long for my tastes is that there could have been unpacking of how loop uantum gravity represents reality the jump from the introduction of spin networks to anything resembling a theory that can be applied to a real world where things happen is overwhelming I had to resort to the much valued advice of one of my supervisors at university who said 'Don't worry if it doesn't all make sense just keep on with it and hopefully it will all come together' It almost all did all come together but I was left with a nagging doubt that I couldn't really grasp the foundation of the whole ideaAs well as coming out of reading this book with significantly respect for Rovelli whose popular science writing I find flowery and overrated I feel that Baggott has done a huge favour for anyone who really wants to understand modern theoretical physics giving a much better understanding of this fascinating attempt to deal with a central reuirement to explain the workings of our universe It's a triumph

Jim Baggott Ú 6 Read

uantum SpaceEd two paths One leads to String Theory which has for long been fashionable and about which much has been written But String Theory has become mired in problems In this book Jim Baggott describes the road less travelled an approach which takes relativity as its starting point and leads to a structure called Loop uantum Gravity Baggott tells the story through the careers and pioneering work of two of the theory's most prominent contributors Lee Smolin and Carlo Rovelli Combining clear discussions of both uantum theory and general relativity this book offers one of the first efforts to explain the new uantum theory of space and time. This was my first book of 2019 and I devoured it in the week I took off after Christmas uantum Space is an overview of Loop uantum Gravity LG which is the main contender to String Theory for a uantum theory of gravity As with most of these books you get a brief recap101 on general relativity uantum mechanics uantum field theory and other relevant areas of physics The book then starts to introduce the ideas leading to the development of LG and occasionally comparescontrasts with string theory along the way and finally covers potential implications of the theory Personally I found the book fascinating and a bit of a nostalgia trip in places 1 It's not an easy read as the book progresses and I'll probably need to re read some sections to get a better grasp of what's really going on I'm not sure if this is a book for the layperson and some background in mathsphysics will no doubt help 1 That said I think it did for LG what Brian Greene's Elegant Universe did for String Theory 1 I always feel I have to do a disclaimer on reviewing books like this I studied a lot of relevant background material to this book for several years My degree was in maths with plenty of theoretical physics I did a masters covering subjects like relativity uantum fields theory uantum cosmology particle physics and black holes I then went on to do a PhD in relativity