Dal big bang ai buchi neri: Breve storia del tempo

Che cosa sappiamo sull universo, e come lo sappiamo Da dove venuto, e dove sta andando L universo ebbe un inizio e, in tal caso cosa c era prima Il tempo avr mai una fine Con questi quesiti Stephen Hawking ci introduce in una straordinaria avventura un emozionante cavalcata nel tempo L espansione dell universo, il principio di indeterminazione, le particelle elemChe cosa sappiamo sull universo, e come lo sappiamo Da dove venuto, e dove sta andando L universo ebbe un inizio e, in tal caso cosa c era prima Il tempo avr mai una fine Con questi quesiti Stephen Hawking ci introduce in una straordinaria avventura un emozionante cavalcata nel tempo L espansione dell universo, il principio di indeterminazione, le particelle elementari e le forze della natura, l origine e la sorte dell universo, l unificazione della fisica sono le grandi tappe di questo viaggio indimenticabile Ma oltre a riassumere le conoscenze tradizionali Hawking illustra le ultime teorie sulla fisica dei buchi neri, il principio antropico, la teoria dell universo inflazionario, l universo contenuto in una bolla.
Dal big bang ai buchi neri Breve storia del tempo Che cosa sappiamo sull universo e come lo sappiamo Da dove venuto e dove sta andando L universo ebbe un inizio e in tal caso cosa c era prima Il tempo avr mai una fine Con questi quesiti Stephen Ha

  • Title: Dal big bang ai buchi neri: Breve storia del tempo
  • Author: Stephen Hawking Ron Miller Libero Sosio Carl Sagan
  • ISBN: 9788817115216
  • Page: 320
  • Format: Paperback
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      Posted by:Stephen Hawking Ron Miller Libero Sosio Carl Sagan
      Published :2018-06-26T01:32:59+00:00

    About the Author

    Stephen Hawking Ron Miller Libero Sosio Carl Sagan

    Stephen William Hawking was born on 8 January 1942 in Oxford, England His parents house was in north London, but during the second world war Oxford was considered a safer place to have babies When he was eight, his family moved to St Albans, a town about 20 miles north of London At eleven Stephen went to St Albans School, and then on to University College, Oxford, his father s old college Stephen wanted to do Mathematics, although his father would have preferred medicine Mathematics was not available at University College, so he did Physics instead After three years and not very much work he was awarded a first class honours degree in Natural Science.Stephen then went on to Cambridge to do research in Cosmology, there being no one working in that area in Oxford at the time His supervisor was Denis Sciama, although he had hoped to get Fred Hoyle who was working in Cambridge After gaining his Ph.D he became first a Research Fellow, and later on a Professorial Fellow at Gonville and Caius College After leaving the Institute of Astronomy in 1973 Stephen came to the Department of Applied Mathematics and Theoretical Physics, and since 1979 has held the post of Lucasian Professor of Mathematics The chair was founded in 1663 with money left in the will of the Reverend Henry Lucas, who had been the Member of Parliament for the University It was first held by Isaac Barrow, and then in 1669 by Isaac Newton.Stephen Hawking has worked on the basic laws which govern the universe With Roger Penrose he showed that Einstein s General Theory of Relativity implied space and time would have a beginning in the Big Bang and an end in black holes These results indicated it was necessary to unify General Relativity with Quantum Theory, the other great Scientific development of the first half of the 20th Century One consequence of such a unification that he discovered was that black holes should not be completely black, but should emit radiation and eventually evaporate and disappear Another conjecture is that the universe has no edge or boundary in imaginary time This would imply that the way the universe began was completely determined by the laws of science.His many publications include The Large Scale Structure of Spacetime with G.F.R Ellis, General Relativity An Einstein Centenary Survey, with W Israel, and 300 Years of Gravity, with W Israel Stephen Hawking has three popular books published his best seller A Brief History of Time, Black Holes and Baby Universes and Other Essays and most recently in 2001, The Universe in a Nutshell There are.pdf and versions of his full publication list.Professor Hawking has twelve honorary degrees, was awarded the CBE in 1982, and was made a Companion of Honour in 1989 He is the recipient of many awards, medals and prizes and is a Fellow of The Royal Society and a Member of the US National Academy of Sciences.Stephen Hawking continues to combine family life he has three children and one grandchild , and his research into theoretical physics together with an extensive programme of travel and public lectures.

    934 Comment

    • Bill said:
      Sep 20, 2018 - 01:32 AM

      This book puts me in mind of the story about how a Harvard number theorist, through some malfunction of the scheduling computer, got assigned to teach an introductory course in pre-calculus. Being one of those individuals to whom math came so easily that they couldn't grasp how difficult others found it, the professor had no idea what to cover in such a course. So, he went to the chair of the department, who told him: "You'll want to start with the real number-line and then progress to inequalit [...]

    • Huda Yahya said:
      Sep 20, 2018 - 01:32 AM

      ‎‏‏هناك لذّةٌ ما ،، في أن تفتحَ كتاباً تشعُّ من سطوره ألوان الفضاء شيءٌ ما في فعلِ المعرفةِ ،، والتأمل فيها شيءٌ يأخذ عقلك إلى أمكنةٍ أخرى لا بين المجراتولا في خضّم الكونِ الواسعبل هنا بداخلكعند هذا النبض الأخّاذ في قلبكحيث تبدأ المتعة في التحرر لتغمر مسامّك برائحة الدهشة [...]

    • AhmadEbaid said:
      Sep 20, 2018 - 01:32 AM

      "والواقع أننا قد أعدنا تحديد مهمة العلم لتصبح اكتشاف القوانين التي تمكننا من التنبؤ بالأحداث في الحدود التي يفرضها مبدأ عدم اليقين"بدأ ستيفن هوكينج, وهو عالم في الفيزياء النظرية, في كتابة هذا الكتاب في الفترة التي كان مازال يستطيع فيها أن يستخدم صوته وهو شبه مشلول على كرسيه ا [...]

    • Daniel said:
      Sep 20, 2018 - 01:32 AM

      It is not clear to me who is in the target audience for this book. At times it tries to explain basic concepts of modern physics in simple language, and at other times it assumes a familiarity with the same subject. For the first time I think I "understand" why absolute time is not consistent with relativity theory or that space-time curvature supplants the notion of gravity, and for that I thank the author. There are a few other things I believe I have a glimpse of having (finally) slogged thro [...]

    • Laurel said:
      Sep 20, 2018 - 01:32 AM

      If I had a slightly more evolved brain or were as brilliantly smart as, say, Stephen Hawking, I might give this book 4 or 5 stars. I'm pretty certain it deserves 4 or 5 stars. But my brain is only (I like to think) a bit above average. And so, yes, I admit it -- much of this (especially when delving into his own theories) was over my head. And while I found what I did understand absolutely fascinating, I can't really give it more than 3 stars because doing so would imply I really "got it."I actu [...]

    • David Sarkies said:
      Sep 20, 2018 - 01:32 AM

      Things I learnt from Stephen Hawking11 October 2014 Ever since I took up physics in year 11 I have had a love affair with the subject, which is odd since I went on to study an arts/law degree (but that probably had something to do with the fact that I would not have had the staying power to pour all of my energy into helping human knowledge advance towards establishing a unified theory). I still wonder where I ended up getting this book, and it had been sitting on my shelf for quite a while (pro [...]

    • Foad said:
      Sep 20, 2018 - 01:32 AM

      خیلی وقت بود دنبال یه کتاب بودم که نظریات فیزیک جدید رو توضیح بده. زیاد از اصل عدم قطعیت و کوانتوم و نسبیت و نظریه ی ریسمان ها و سیاهچاله و کرمچاله و انفجار بزرگ و غیره و غیره شنیدیم، ولی شاید از هیچ کدوم تصور درستی نداشته باشیم. این کتاب خیلی از این نظریات رو مفصل توضیح میده.است [...]

    • Jason Koivu said:
      Sep 20, 2018 - 01:32 AM

      Isn't it amazing that a person can read a book like A Brief History of Time by Stephen Hawking and come away feeling both smarter and dumber than before he started? What a universe we live in!It's quite short and generally a quick read. Not every page is filled with mind-numbing theories and brain-busting equations. Some of it is just history, say on Newton and such. However, there were a few pages worth of passages where my wee brain felt like it was getting sucked into a black holeinly during [...]

    • Ahmad Sharabiani said:
      Sep 20, 2018 - 01:32 AM

      A Brief History of Time: From the Big Bang to Black HolesWhat is it that our eyes do that could possibly affect things? Stephen HawkingA Brief History of Time: From the Big Bang to Black Holes is a popular-science book on cosmology (the study of the universe) by British physicist Stephen Hawking. It was first published in 1988. Hawking wrote the book for nonspecialist readers with no prior knowledge of scientific theories. تاریخ نخستین خوانش: چهارم ماه مارس سال 199 [...]

    • Darwin8u said:
      Sep 20, 2018 - 01:32 AM

      “The universe doesn't allow perfection.” ― Stephen Hawking, A Brief History of TimeI know. I know. I both loved and hated this book. I definitely should never have read this book, cut the pages, opened the box, etc Somehow Stephen Hawking has written a book that gently fluffs the tail on Schrödinger's cat (or perhaps Schrödinger's cat is fluffing Dr. Hawking). Look, no doubt the guy is a genius and has a fantastic story (ALS, computer voice, nurses, Black Holes, strippers, movies, etc). [...]

    • Matthew said:
      Sep 20, 2018 - 01:32 AM

      Hawking is a brilliant physicist and a true expert in explaining highly complex aspects of our physical universe in terms that can be understood by most lay people.Where Hawking fails, in my opinion, is his hubris. He proceeds in to the realm of metaphysics and religion in several portions of this book. For instance, in his chapter on the "arrow of time", he states that, essentially, the universe can only move in one direction of time. It cannot go backwards. He also states that this limits the [...]

    • Manny said:
      Sep 20, 2018 - 01:32 AM

      Apparently this book tops the world list of "bought but not read", which may explain why it's so universally acclaimed as a work of genius. If you know anything much about relativity or cosmology, it comes across as a potboiler, admittedly a well-written one with a great final sentence. I wasn't impressed.But without it, we would never have had MC Hawking. If you haven't come across him, start with the lyrics to "E = MC Hawking". Then buy A Brief History of Rhyme.

    • Ahmed Ibrahim said:
      Sep 20, 2018 - 01:32 AM

      يسعى هوكينج في هذا الكتاب لوضع خريطة أو مسار كوني، بداية من الكيفية التي بدأ بها الكون، إلى وضع الاحتمالات التي سينتهي إليها، وتوضيح ما بينهما من أمور كونية فلكية. بدأ الكتاب بالحديث عن الانفجار الكبير والمتفردة التي بدأ منها، وفيما بعد سيتناول احتمالات تنفي وجود متفردة أول [...]

    • Mohammed-Makram said:
      Sep 20, 2018 - 01:32 AM

      مع انى دارس هندسه فراغية و هندسة وصفية و مساحة جيوديسيه و رياضه بحته و تطبيقية و فيزياء عامه و ثيرمو دايناميك لكن حسيت و انا بقرأ الكتاب ده انى كنت أدبى و انى خريج دبلوم زخرفهده مش عيب فى الكتاب لكن عيب فيا انا لأنى درست علشان أشتغل و اهتميت بس بالمحتوى العلمى اللى هستخدمه فى ا [...]

    • Trevor said:
      Sep 20, 2018 - 01:32 AM

      The main idea to take away from this book is that time has a clear direction. Entropy is the idea that the universe moves from highly ordered states to less ordered states. If you take the lid off a bottle of perfume, and leave it off for a few days the perfume will go from being highly ordered (all in the bottle) to highly disordered (all over the room). Hawking uses this idea to explain why travelling back in time is impossible. It requires very little energy to knock a glass over and smash it [...]

    • Nandakishore Varma said:
      Sep 20, 2018 - 01:32 AM

      Manny says this book is in the "bought but not read" category for most people. Well, I'm proud to say that I bought and read it, that too in nearly one sitting - back in my geeky days, when I used to get a sexual high just from solving a hard maths puzzle.Unfortunately, I don't remember much of it (time for a re-read!) but I remember taking away the idea that time is a sphere. Being Indian, I loved this - because we are strong champions of cyclical time. Also, if time and space are both curved, [...]

    • Shine Sebastian said:
      Sep 20, 2018 - 01:32 AM

      Without a doubt a masterpiece!It's just incredible how Hawking explains to us the complex and mindboggling secrets and concepts of physics and our universe, with amazing wit , clarity, and simplicity.The questions that we all used to ask to ourselves and to our parents, about god, about time, life and it's meaning, the sky, stars, about who created our universe and about it's beginning, about our fatewe had that unique quality called curiosity when we were children, but then, as we grew up , we [...]

    • Miquel Reina said:
      Sep 20, 2018 - 01:32 AM

      Oh, this is definitely one of my favorite books of science and my favorite one of Stephen Hawking. I love the way Hawking explains concepts so abstract and difficult to understand as time or black holes. It's a science book for the general public; you don't need to know math or physics to understand the amazing concepts about the Universe he tries to explain us. I totally recommend A Brief History Of Time to everyone, not only the lovers of science.Spanish version:Éste es sin duda uno de mis li [...]

    • Dodoo Ahmed said:
      Sep 20, 2018 - 01:32 AM

      بما ان اختصاص الكتاب ليس من اهتماماتي فق قرأته قراءة سريعة و لم أحاول التعمق في النظريات و المعادلات الفيزيائية و تجاوزن عت اي شيء مما لم أفهمه دفعني لقراءته الفصول فخرجت منه بمعلومات أجدها قيمة و اضافت لي بما اني ما كنت لأعرفها لولا قراءتي الكتاب أوجزها فيما يلي:1- نيوتن قد و [...]

    • Michael Finocchiaro said:
      Sep 20, 2018 - 01:32 AM

      A classic text where the amazing Stephen Hawking explains string theory and quantum mechanics "for dummies." Highly readable and even comical, it is a superb read. I need to go back and read this one again myself!

    • John Farebrother said:
      Sep 20, 2018 - 01:32 AM

      I've read this book twice, and for a brief instant, when reading about event horizons, I got it. But don't ask me to explain it now.The book explains in lay terms what several decades ago was only understood by a handful of people. Surprisingly, it is not devoid of humour, and is actually very readable. The remarkable author leads the reader on a journey from the earliest premises of the ancient astronomers right up to black holes and white dwarves, and the latest thinking on the future of the u [...]

    • Nikki said:
      Sep 20, 2018 - 01:32 AM

      Stephen Hawking's book is easy to read, but harder to comprehend. In every chapter came a point where my brain couldn't hold another permutation of a theory, and as the book progressed, I ended up taking the same approach as I do when reading a Norse saga for the first time. With sagas, I just read, even if my brain doesn't seem to retain all the information about who is related to who and what they named their horse. Inevitably, at the end, I have a reasonable basic grasp of the saga, and then [...]

    • Gypsy said:
      Sep 20, 2018 - 01:32 AM

      البتّه من ویرایش جدیدشو دارم با کلّی ملحقّات و اینا. به‌شدّت دوستش داشتم. خیلی قابل فهم بود؛ گرچه آخراش یکم دیریاب میشد. اون فرهنگ واژگان تهشم خیلی کمک کرد. کلاً خیلی به‌خوندنش احتیاج داشتم و پاسخ خیلی از پرسش‌هامو داد آقا خسته نباشی! :D

    • aPriL does feral sometimes said:
      Sep 20, 2018 - 01:32 AM

      All I can really tell you with certainty is 'A Brief History of Time' is very logically organized, but as each chapter described a series of linked discoveries and what it all meant, unfortunately it mostly was still opaque to me. Topics are introduced logically as Stephen Hawking describes in plain English the discoveries of scientists. He usually begins with observable phenomena which have led to verified maths (not actually detailed) demonstrating very likely how the Universe, and presumably [...]

    • Nawal said:
      Sep 20, 2018 - 01:32 AM

      This is a review of a non-technical reader.A very readable and entertaining introduction to recent developments in physics and cosmology, Hawking attempts to deal with questions that bothered the cosmic physics community 20 years ago:Is the universe finite or infinite in extent and content? Is it eternal or does it have a beginning? Was it created? If not, where did it come from? ? What governs the laws and constants of physics? Why is the universe the way it is? etc.Glossing over the key aspect [...]

    • mali said:
      Sep 20, 2018 - 01:32 AM

      It was while reading this that I finally had an "aha" moment about why it is that observation can change what you're trying to observe. I was always kind of skeptical of this, because I was wondering "what is it that our eyes do that could possibly affect things?" Stephen Hawking set me straight: it's the tiny speck of light that you have to shoot at what you're trying to observe that affects it. Light bulb is on!I have an interest in physics, and I have read quite a few books for the layman abo [...]

    • Mustafa Ahmad said:
      Sep 20, 2018 - 01:32 AM

      I've always liked science. But, it has never really been easy to distinguish my favorite subject, as I really like them all, so science is on par with history and math and literature for me.But, after reading this book and the works of Brian Greene, as well as numerous other popular books on physics, I have seen science in an entirely different light. If people could still produce intelligent books such as this one, then our world might actually be a fairly pleasant one. I'm not saying that we'r [...]

    • Archit Ojha said:
      Sep 20, 2018 - 01:32 AM

      One of most famous and well written books on Physics. Recommended to the Science enthusiasts.

    • Tariq Alferis said:
      Sep 20, 2018 - 01:32 AM

      كتب ستيفن هوكنج هذا الكتاب، من اجل الاستهلاك المحلي او لطبقة العامة من الناس فقد ذكر فى كتابه ان أحد اصدقائه قال له : أن كل معادلة ستكتبها فى كتاب , ستخسر بها نصف قرائك . ولذلك قد حاول الالتزام بعدم التعقيد العلمى , ومحاولة الوصول الى البساطة والعمق .لايوجد اكبر واعقد من كوننا !ي [...]

    • Annalisa said:
      Sep 20, 2018 - 01:32 AM

      Disclaimer: I love math and physics and books that make me feel stupid, as in they are that intelligent. It was interesting learning about the development of science as it refers to the way we think about the universe and how scientific discoveries have been influenced and influence the way people think about God. My favorite section was the discussion of black holes and antimatter. At times Hawking lost me. He wants to explain theory to the masses, but as he draws near to his own theory, he got [...]

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