Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

Free download La realtà non è come ci appare la struttura elementare delle cose

La realtà non è come ci appare la struttura elementare delle cose

Free download La realtà non è come ci appare la struttura elementare delle cose Read ô La realtà non è come ci appare la struttura elementare delle cose ✓ E-book, or Kindle E-pub Carlo Rovelli ✓ 9 Read Este libro aborda uno de los mayores misterios de la física cuántica ¿de ué está compuesta en definitiva la realidad ¿cuál es la estructura profunda de las cosas ¿cómo se conjuga la gramática de la naturaleza A. Making Spaceuantum Gravity is the closest thing in Physics to a coherent explanation of the origin and fate of the universe how it began how it works how it evolves uantum Gravity also has a pretty fair shot to reconcile the apparent paradoxes and contradictions involved in and between the theories of General Relativity and uantum Mechanics Most recent scientific observations favour it over alternative theories as the way forward for Physics But uantum Gravity does fail to explain one important thing meaning including the meaning of the idea of uantum GravityAccording to the latest findings of empirical research in uantum Mechanics the fundamental constituents of the cosmos are fourteen or so uantum fields the behaviour of which produces precisely constitutes discrete particles of energy and matter Despite the unintuitive character and sometimes apparently paradoxical implications of uantum Mechanics every scientific test conceived and executed has confirmed its predictions It is the biggest single scientific truth available at the momentEinstein s Theory of General Relativity states that Space and Time are not separate categories of existence but part of a composite Space time This may be tough to visualise but uantum Mechanics makes the picture even less imaginable by portraying Space time itself as a uantum Field Like other fields in uantum Mechanics it too is uantised that is composed of uanta small indivisible bits There is thus a smallest Space time component which sets a definite lower limit not just on how small anything can be but also how densely compacted any material or energy can be One implication therefore is that the mathematical horrors of General Relativity don t occur the universe did not start as an infinitely dense point at the Big Bang nor do black holes consist of infinitely dense materialAt this point theoretical Physics starts to get properly spooky uantum Gravity considers Space on its own as a field This field is theorised as composed of discrete threads analogous to electromagnetic lines of force which form nodes when the threads intersect The threads are conceived as loops which then interweave at the nodes These nodes are the small discrete bits of uantum SpaceThe most that can be said at this stage in scientific thought is that Space is somehow woven by these discrete threads These are effectively then atoms of Space upon which other uantum fields are somehow layered Perhaps the most astounding aspect of the theory of uantum Gravity is that Time disappears entirely as a basic component of the universe Rather Time is merely a manifestation of the underlying uantum gravitational field Simple reallyIn the world of uantum Gravity the principle of cause and effect no longer holds Space particles uanta only exist when they interact And they only interact probabilistically Processes have starting points and end points But a determinate connection between these points does not exist Particles uanta fields interact but they do not cause future states of particles uanta and fields because there is no determinate universal future Therefore there can be no seuence involving time Time simply doesn t exist at the uantum level happily perhaps because Special Relativity had already shown that time wasn t something anyone wanted to touch with a scientific barge pole When the tortuously complex detail is put aside it turns out the entire world is made of one Covariant uantum Field which includes Space as well as all the other fields of matter and energy layered onto it Everything that happens in the universe emerges from this unified fieldWell not uite everything The problem that Rovelli stays as far away from as he can is this What the Covariant uantum Field might not produce is Carlo Rovelli contemplating the Covariant uantum Field That is nowhere in the theory is there an indication that anything like an idea which is immaterial can be produced The only products of the field are material space energy or matter None of these constitutes an idea Nor do they collectively constitute the emotion that Rovelli clearly has about the Covariant uantum Field The issue is important to keep science from slipping into ideology a pattern typical in modern science from Millsian economics to Darwinian biology to Nietzschean philosophy Rovelli implies that the Covariant uantum Field does indeed generate ideas and emotions at least indirectly because it is the ultimate foundation of all that exists including his brain and the readers There may be many rungs up the ladder from the field to fundamental particle interactions to non uantum events and ultimately to life both human and otherwise But the field inevitably is the ultimate source for all human behaviour including human thought This argument would then include the thoughts of say Purpose and Success Rovelli makes no attempt to explain the precise connections up the great chain of being from the sea foam of the uantum fields to the grey matter of the human brain But his implication is clear We our ideas our actions including the writing of a book about the Covariant uantum Field are generated by the Covariant uantum FieldAlthough Rovelli s presentation is couched in terms of uantum Gravity it is precisely the same stand and the same hubris taken by generations of classical physicists who believed that the world ran exclusively on Newtonian laws from atoms right up to professors of physics It is called Reductionism the claim that all of existence can be reduced to the laws rules and observations of a single discipline Judging by his incidental comments about the harmful effects of religion on science throughout the ages it is immateriality that is his intended reductionist target But this gets him into a bit of trouble Ideas in particular don t fit easily into the theory Any theory that claims universality ultimately has to deal with themRovelli has his own intentions which are stated or implied in the book to communicate facts and theories to contribute to the prestige of his discipline to express his poetic take on science to establish science s superiority over other modes of inuiry Finally he is making a case that science is beneficial for the world it is successful it has value None of these intentions are pure description They are all ideas and they all involve what we commonly call purpose And they all clearly have great emotional significance for RovelliWhere did these ideas these purposes and implicit criteria of success or value along with their emotional baggage come from Who or what is responsible for them How are they to be assimilated into political and social life This book according to the title has a claim to defining reality Any such claim needs than mere disciplinary or even scientific justification Physics cannot claim a privileged position This is Scientism the presumption the superiority of scientific authority in the description of the worldOne possibility is that Rovelli is being manipulated by uantum Gravity to investigate itself and the field is providing him the criteria for successful investigation at the same time Unlikely as it is that the author would like such an interpretation it s a logical possibility Is there an alternativeCould it be that purpose intention emotions are not a properties or implications of the field at all Could it be that the Covariant uantum Field has absolutely nothing to say about what is a criterion of better or worse or of what constitutes success To admit this possibility would mean that purpose and other ideas like uantum Gravity itself are independent of the field Such a possibility would reuire Rovelli s inclusion in the theory not merely as an observer who affects uantum results but as an evaluator a judge of the reasons for his inuiry in the first place one who defines what a result is Purpose for example could well be what is called in Systems Theory an emergent property Such a property would not be a simple conseuence of the behaviour of the field neither logically nor physically Emergent properties can t be predicted on the basis of the interactions in the field Such an emergent property would fit with the random character of field interactions But it would also transcend these interactions That is some relations and interactions like Purpose and Success have the field as a necessary condition but not as sufficient condition for their existence Something else has to contributeRovelli accepts the relativity involved in modern physics But he doesn t like the relativity implied by differences in Purpose and Success what might conveniently if somewhat loosely be called Politics the process of the establishment of value He considers particles but not people to be defined by their relationships On the one hand he clearly detests religion for its dogmatic stance on truth and about what s important On the other hand he dislikes modern philosophy for its challenge to dogmatic claims to truth and about what s important Only physical scientists it seems for Rovelli have the imaginative skill to understand the world and to express it adeuately This is not just a cosmology it is a cosmological ideologyHe is therefore ambiguous about what uantum Gravity really means He can only state rather tired cliches about the superiority of scientific method science as exploring new ways of thinking tireless scientific genius religion particularly monotheism as an enemy to thought philosophy as misleading nonsense What he means by scientific method are the procedures and criteria he and his colleagues employ at the moment whatever they are But he doesn t want the philosophical arguments that justify his freedom applied generally This he sees as relativism He wants the theory uantum Gravity accepted by the public But he doesn t want current theories to be taken literally that is to be interpreted by non scientists as a description of the world He wants us to rely on the experts to know what uantum Gravity implies and to leave what it means alone In short he wants power to realise his intentions Ideologies are ideas that justify power In this case the power of physicists to establish the definition and boundaries of reality Ideologies work by limiting the scope of what can be considered real and important by prescribing what s valuable The ideological import of the book is apparent in the title and subtly confirmed in its content Is there space in uantum Gravity for something else An important clue to Rovelli s ideological intent is his inclusion of Shannon s Theory of Information to support the conjectures of uantum Gravity Written in 1948 this theory is hardly state of the art However it does have a compatibility with Rovelli s point of view It reduces all of reality to bits of digital information It is this theory which inspired the Beam Me Up Scottie of Star Trek as well as Neal Stephenson s Cryptonomicon It is also an idealised description of the totalitarian state in which all individuals are the information stored about them Theories of this sort are not simply descriptions of the world They transform easily and almost invisibly from method to ideology Shannon s theory for example played a large part in the influence of Cybernetics in the 20 years following WWII Cybernetics as an ideology deflected public and scientific attention away fro the discussion of ends purpose to the discussion of means mainly the technology of industrial efficiency and war See GR review of Kurt Vonnegut s novel Player PianoContrast Shannon s reductionist s theory of information with that a semiotic theory of information In Semiotics the unit of analysis is called a sign A sign is something that can be interpreted as having a meaning which is something other than itself and which is therefore able to communicate information to the one interpreting or decoding the sign In Semiotics words are signs behaviour is a sign anything with a potential meaning is a sign So the Covariant uantum Field is a sign In fact a person is also a sign Defined as a sign a person is not decomposed into bits but taken as an entire human entity This entity can in fact insists upon being interpreted and interpreting It is not constituted by anything other than itself Like uantum particles a sign is always relative to other signs but not subordinate Unlike uantum particles the human sign can love Perhaps Professor Rovelli might consider this sign as an alternative reality

Summary ç E-book, or Kindle E-pub ✓ Carlo Rovelli

Free download La realtà non è come ci appare la struttura elementare delle cose Read ô La realtà non è come ci appare la struttura elementare delle cose ✓ E-book, or Kindle E-pub Carlo Rovelli ✓ 9 Read Los últimos descubrimientos en torno a los agujeros negros mientras nos contagia su entusiasmo por la belleza del cosmos y por las sorpresas ue puede depararnos nuestro viaje a la última frontera del conocimiento físi. let s look at the Earth then you ll see there are things that stand still and things that will sooner or later come to a standstill that is at the moment they happen to be moving from one place to another there is stoppage and delayed stoppage there are two if we consider only the Earth and the way we see it but if we take the realm of the invisible where let s say he says neutrons and protons and electrons and hadrons and leptons and uarks and bosons and superpartners bicker and so on and so forth where the series endlessly continuable as time passes because they too are only assembled out of something well no matter the point that here we see motion the interruption or stoppage of which how shall I say deferred forever so that we have stoppage and motion but behind both and pay attention now he says there is that elusive unfathomable gigasystem that determines what is it going to be stoppage or motion and beyond the world there are other worlds every world perfectly conceals another world of course although the whole thing can also be expressed by saying that any one world is only a gateway a secret door to billions of worlds L szl Krasznahorkai words of a drunk in Budapest in The World Goes On Hold Infinity in the palm of your handAnd Eternity in an hour William BlakeWhen I was between the ages of 12 and 15 my family lived across the street from a cemetery No there are no extra physical beings in this review On warm summer prairie evenings I would wander over and lay down in the grass to watch the sky This was a time when I had rejected the totality of the human race The peace of the cemetery was welcoming I saw a great deal both above me and in my thoughts I recall the sparrow hawks circling overhead and then dropping from above at tremendous speeds to capture the unsuspecting insects that flew into the paths of the open jaws of the birds And I waited each time for the swoosh of the wind through their wings as they pulled out of their seemingly inevitable meeting with the earth I never lost the wonder of it And every night the darkness came or better the light that pushed back the darkness came and I entered into a world of my imagination at its best I lay trying to imagine those two greatest enigmas for me having written off humanity infinity and eternity I had not yet heard of William Blake but I was delighted when I first read Auguries of Innocence despite its religious overtones I would lie there for hours watching the sky roll by and becoming entranced with my own thoughts It was my childhood version of Zen I was less concerned with finding an answer to my uestioning and taken by my state of mind I realized that I could never really imagine a universe that stretched on infinitely nor could I imagine one that had limits What could be beyond the limits The same types of ideas arose around eternity How could time stretch backwards and forwards without beginning or ending And what did that all mean anyway I lay there boggling my mind and thoroughly bewildering myself Interestingly it never occurred to me that science could help with this In the early 1960s we learned nothing beyond seventeenth century science and not much of that Until recently I never tried to grasp anything about uantum Physics I ve been the poet than the scientist Now I struggle with the most basic concepts Carlo Rovelli is trying to help He also wants to explain that he too has the heart of a poet I m not sure So what would Rovelli make of my childhood reveries Well he would and has among many other things explained to me that space and time at least in my sense do not do not really exist And I suppose that Blake had it wrong There are particles and there are relationships between these particles but my concerns have been misplaced Well misplaced in any ultimate sense I have immersed myself in enough Madhyamaka Buddhist thinking to be able to understand that I can distinguish conventional stuff from ultimate or absolute stuff and that the absolute stuff is not only unknowable but is not reality And of course such ideas would seem at times to be where Rovelli and I part company But then maybe not I do not even agree with his use of the word reality His definition seems to meander Some uotes And it is reliability that we need not certainty We don t have absolute certainty and never will have unless accept blind belief The most credible answers are the ones given by science because science is the search for the most credible answers available not for answers pretending to certainty parts of an indispensable grammar for understanding the world This grammar has evolved and is still in the process water A wave is not an object in the sense that it is not made of matter that travels with it The atoms of our body as well flow in and away from us We like waves and like all objects are events we are processes for a brief time monotonous uantum mechanics does not describe objects it describes processes and events that are junction points between processes What makes a subject hard to understand if it s something significant and important is not that before you can understand it you need to be specially trained in abstruse matters but the contrast between understanding the subject and what most people want to see Because of this the very things that are most obvious may become the hardest of all to understand What has to be overcome is a difficulty having to do with the will rather than with the intellect The reason there is so much resistance of will is because we wrongly assume that that which we are explaining resides in some foundation beyond us be it God or the foundation of the physical world namely particles We need to see that we and our surroundings are the foundations and we describe these we do not explain them just as we do not explain our consciousness rather we are conscious I would like to agree with Rovelli on this last point I really would but I do not know that he has succeeded He has not completely in my case anyway been able to convert his formulas and numbers into language that I can totally grasp Too much of what he presents is in the form of metaphors and until those metaphors become so deeply embedded in our daily speech the are only metaphors I don t know that I can wait that long Where Rovelli has succeeded is in further eroding those metaphors of my past I will no longer look at the night sky in search of limiting walls to the universe I shall simply continue to wonder perhaps in cemeteries at night and read of course

Carlo Rovelli ✓ 9 Read

Free download La realtà non è come ci appare la struttura elementare delle cose Read ô La realtà non è come ci appare la struttura elementare delle cose ✓ E-book, or Kindle E-pub Carlo Rovelli ✓ 9 Read Medida ue nuestros instrumentos de observación se perfeccionan surgen nuevas estructuras cuyo comportamiento desafía las leyes de la lógica Rovelli logra aclarar los entresijos de la teoría de la relatividad general y. I ll be honest and up front I only wanted to read into Loop uantum Gravity Say what Well it s the leading contender against String theory It doesn t try to mash together the main problem area of gravity with uantum mechanics but rather extends uantum mechanics as a granular geometric euation into the macro realm of what we understand as special relativityIn other words Reality is finite uantifiable and can be extrapolated from the underpinnings of the general field of uantum mechanicsIf you know anything about the underlying basis of string theory this idea is both flabbergasting and simplistic And maybe it s also correctI can t say for certain and as far as I can tell neither can the author Most of the book gives us a survey of the underpinnings of reality physics from the conceptualization of the atom through Einstein s reformulation of heat energy on the euilibrium of those atoms in their environmental matrices EMC suared Spin Foam is the name of the minimum Planck distance that forces atoms into discrete and uantifiable distances between each other It s the reason why atoms don t just fall into singularities like black holes or crushed neutronium states under normal gravitic circumstances It s not merely probability shells and energy levels but uantum loops that behave like bubbles forcing certain distances and therefore forcing Matter to behave the way it apparently behaves making atomic structure The most interesting idea I m getting from this is the idea of the Big Bounce In other words the cause of the great expansion once the Big Bang got lit It reminds me a lot of how iron molecules make stars burp in the process of digesting fusion and cause a nova Only we re dealing with a uantum state that coaxes atoms into creation through special wave functions behaving like granular notations You know like how light behaves like both a wave and a particleAnd beyond this I m completely lost I don t know the math but this book is pretty decent on the conceptual side The basics are commonplace and I was mainly into it for the later weird stuff But all in all Rovelli is a very very good writer Convincing Clear It may not be the answer to the great uestion of our day and age but he makes a very good case


10 thoughts on “Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

  1. says: Free download La realtà non è come ci appare la struttura elementare delle cose Carlo Rovelli ✓ 9 Read Summary ç E-book, or Kindle E-pub ✓ Carlo Rovelli

    Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli Carlo Rovelli ✓ 9 Read Summary ç E-book, or Kindle E-pub ✓ Carlo Rovelli Goodreads friends who know about physics told me that this book really does provide a comprehensible explanation of loop uantum gravity I was a little sceptical having already seen a couple of unsuccessful attempts but now that I've read it I'm convinced It does what it says on the boxIf loop uantum gravity LG ha

  2. says: Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

    Free download La realtà non è come ci appare la struttura elementare delle cose Summary ç E-book, or Kindle E-pub ✓ Carlo Rovelli Carlo Rovelli ✓ 9 Read Making Spaceuantum Gravity is the closest thing in Physics to a coherent explanation of the origin and fate of the universe how it began how it works how it evolves uantum Gravity also has a pretty fair shot to reconcile the apparent paradoxes and contradictions involved in and between the theories of General Rel

  3. says: Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

    Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli Before being technical science is visionary Carol Rovelli Reality is Not What it Seems 5 stars for poetry; 3 stars for precision When one discusses matters celestial or theoretical or cosmological it best translates when done in math or poetry Rovelli has an amazing talent for singing the esoteric theoretical lan

  4. says: Free download La realtà non è come ci appare la struttura elementare delle cose Carlo Rovelli ✓ 9 Read Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

    Free download La realtà non è come ci appare la struttura elementare delle cose Summary ç E-book, or Kindle E-pub ✓ Carlo Rovelli Carlo Rovelli ✓ 9 Read I'll be honest and up front I only wanted to read into Loop uantum Gravity Say what?? Well it's the leading cont

  5. says: Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

    Free download La realtà non è come ci appare la struttura elementare delle cose Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli Summary ç E-book, or Kindle E-pub ✓ Carlo Rovelli Enlightenment à la Rovelli serves 21 Divide the Dante into eual halves and fasten together with a good transdimensional adhesive to form a 3 sphere Be careful not to get any glue in the primum mobile Set aside to dry2 Stir the Lucretius Galileo Newton Einstein and Heisenberg until thoroughly mixed Add a little Anaximander to taste Put in a warm place until it has risen3 Add the Feynman path integral and the l

  6. says: Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

    Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli 35 starsIn this book Carlo Rovelli a theoretical physicist explains Loop uantum Gravity LG a concept that merges Einstein's theory of

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    Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli If you're into stuff like this you can read the full reviewFollow up on ∂S∂t H 0 Reality Is Not What It Seems by Carlo R

  8. says: Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

    Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli Summary ç E-book, or Kindle E-pub ✓ Carlo Rovelli Free download La realtà non è come ci appare la struttura elementare delle cose Rovelli crafts a uniue presentation combining insight from the ancient Greeks some Dante a selective history of physics and his own uest for a theory of uantum gravity He adds a little philosophy and even a few lin

  9. says: Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

    Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli “ let's look at the Earth then you'll see there are things that stand still and things that will sooner or later come to a standstill that is at the moment they happen to be moving from one place to another there is stoppage and delayed stop

  10. says: Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli

    Free E–pub [La realtà non è come ci appare la struttura elementare delle cose] Ë Carlo Rovelli Summary ç E-book, or Kindle E-pub ✓ Carlo Rovelli Free download La realtà non è come ci appare la struttura elementare delle cose I've always thought that the generally accepted solution to Zeno's Paradox wasn't very acceptable A curve approaching infinitely small zero? But really they aren't eual You just kind ofround down? So imagine to my surprise Rovelli su

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  • Paperback
  • 242
  • La realtà non è come ci appare la struttura elementare delle cose
  • Carlo Rovelli
  • Italian
  • 09 October 2018
  • 9788860306418