In general I'd say this is like a children's book compared to the 1987 version, so if you're not really a science person I'd recommend to read only this one I liked the detailed discussion of Friedmann's 3 models of the universe in the first edition, as well as singularities and possibilities of time travel. In the 18th century, Sir confirmed the positions and distances of many stars in the night sky. Dust Jacket Condition: Fine +. With exciting images and profound imagination, Stephen Hawking brings us closer to the ultimate secrets at the very heart of creation. I guess that, at least at this time in my life, I'm not capable of getting my head around the concept of a unified and relative space-time and all the implications it carries such as the bending of time near large gravitational fields, differences in aging the farther one gets from the center of a large gravitational field, and that whole section about time travel. In the ten years since its publication in 1988, Stephen Hawking's classic work has become a landmark volume in scientific writing, with more than nine million copies in forty languages sold worldwide.
In fact, throughout the book the question of the existence of God perpetually hangs in the background. Such a theory must combine the classical theory of gravity with the uncertainty principle found in quantum mechanics. He made two very simple assumptions: the universe is identical in every direction, i. The first drawing of an escapement was given by Jacopo di Dondi in 1364. One of the first state U.
Al llegar a este punto, el lector ya tiene una base de conocimiento suficiente para comprender conceptos más complejos, así los autores se adentran en explicaciones sobre la curvatura del espacio tiempo, la expansión del universo, el efecto de la gravedad sobre el paso del tiempo, agujeros negros, viajes al futuro y al pasado. However, if theoretical physics fascinates you, then this is certainly a book that you should give a read though you have probably done that already. He also states that this limits the 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. I definitely should never have read this book, cut the pages, opened the box, etc. The particle that carries the strong nuclear force is thought to be a.
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. In the second model, the space would lead to a flat structure, and the third model results in negative curvature, or saddle shaped. Surprisingly, it is not devoid of humour, and is actually very readable. All particles for example, the quarks have something called spin. 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. Suppose an intrepid astronaut on the surface of the collapsing star, collapsing inward with it, sent a signal every second, according to his watch, to his spaceship orbiting about the star. Second state of the first U.
One of the earliest copies, with no price on the dust wrapper. Only comparable feeling is the one with reading 'pale blue dot'. I start to grasp the concepts and then they start slipping away. They're interesting, but of no practical value to me and, as he points out, science has progressed so much that no one can understand it all any more. So if you meet your antiself, don't shake hands - you would both vanish in a great flash of light! I learned a lot, it was a fun, pleasant experience, and now I'm significantly less ignorant in physics. Початок оманливо простий, але автори швидко піднімають рівень - переходячи до складніших питань.
First American edition which was recalled shortly after printing because of many, many errors including a missing contents page and dedication and many mislabeled diagrams. Fine in a fine dust jacket--bright and clean inside and out. Fine in a near fine dust jacket with light rubbing. We know how to make a nuclear bomb, as well as a smart phone, so we don't question what they say, because it obviously works. اذن النجوم شموس اخرى بعيدة لا تظهر نهارا لان ضوء الشمس اقوى من ضوءها 4- الزمان لم يكن يوجد قبل بدأ الكون. 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. The time interval between the arrival of successive waves at the spaceship would get longer and longer, so the light from the star would appear redder and redder and fainter and fainter.
It is a theological text that tells us how we should live with one another and how we should view God. The planned opera was changed to be about a different subject and eventually canceled completely. كتاب لطيف، مختصر، ومركّز، يجعلك تعرف بشكل جيد أكثر الموضوعات التي تهم علماء الفيزياء اليوم يحوي الكتاب عدة موضوعات متّصلة بطريقة ما، قرأت عن أكثرها سابقا بشكل منفصل، لكني لم أجد كتابا مثل هذا جامعا لها، بشكل واضح يجعلني أفهم رغم أني لستُ مختصّا استمتعت به، وأراه مناسبا لكل من لديه أسئلة حول الفيزياء والكون بشكل عام. Nonostante l'ironia, io trovo che sia un libro valido con uno stile molto scorrevole e che invoglia allo studio della fisica. Finally, used light cones and to prove that a collapsing star could result in a region of zero size and infinite density and curvature called a , so Hawking and Penrose proved together that the universe should have arisen from a singularity which Hawking himself disproved once Quantum effects are taken into account.
Моя улюблена про дуже вредного Ньютона : Читати? AbeBooks, the AbeBooks logo, AbeBooks. It's quite short and generally a quick read. 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. First British edition and true first of Hawking's groundbreaking work. However, ordinary people continued to use seasonally varying hours for a long time.
Supporting notes Note 1 When you think about the problem - we can find due South easily from the sun at midday. من خلال هذا الكتاب يمكنك مشاهدة الكون بـعين أخرى وأؤكد لك أن تلك العين ستكون أكثر إبهاراً من العين التي كنت تمتلكها قبل أن تقرأه. إسمي ستيفن هوكنغ، وأنا فيزيائي وعالم فلك، وحالم بعض الأحيان على الرغم من أنني لا أستطيع الكلام أو التحرك إلا عبر كمبيوتر ولكن في عقلي، فأنا حر تماماً. © Publishers Weekly by Barron1961 I enjoyed reading this book although it took me some time as there is quite a bit to absorb. تاریخ فیزیک از دوره ی ارسطو تا نیوتون تا آینشتاین و هایزنبرگ، مباحث کیهان شناسی، مثل گسترش جهان یا محاسبه ی فاصله ی کهکشان ها، برخی از مباحث فیزیک جدید، مثل اصل عدم قطعیت و نسبیت، جزء جاهایی بود که کمابیش فهمیدم و خیلی لذت بردم. About this Item: Bantam, New York, 1988.