《大设计》：宇宙何时并如何起始？我们为何在此？为何是有非无？何为实在本性？为何自然定律被这么精细地调谐至让我们这样的生命存在？以及最后，我们宇宙的表观“大设计”能否证实使事物运行的仁慈的造物主？科学能否提供另一种解释？有关宇宙起源以及生命本身的最基本的问题，曾经为哲学的范围，现在占据着科学家、哲学家和神学家相遇但却自说自话的领地。在霍金和蒙洛迪诺的新书中，他们以精彩简朴的非专业语言表述有关宇宙奥秘的最新的科学思考。他们在《大设计》中解释，根据量子论，宇宙不仅具有单独的存在或历史，而且同时存在每种可能的历史。把这种思想应用于宇宙整体，就对因果概念本身提出疑问。然而，霍金和蒙洛迪诺描述的“从顶到底”的宇宙学方法会说，过去没有采取确定的形式这一事实意味着，我们因观察历史而创造历史，而非历史创造我们。作者进一步解释，我们自身是宇宙极早期的量子涨落的产物，并且展现量子论如何预言“多宇宙”——该思想是说，我们的宇宙只不过是自发地从无中出现的许多宇宙中的一个，每个宇宙具有不同的自然定律。霍金和蒙洛迪诺在这过程中诘问实在的传统概念，提出“依赖模型”的实在论，这是我们能够希望找到的最佳答案。他们以对M理论的精彩评价来结束全书，M理论解释了制约我们和我们宇宙的定律，它还是完备的“万物理论”的目前可行的仅有候选者。他们写道，如果被证实的话，它将是爱因斯坦寻求的统一理论，也是人类理性的终极胜利。
这是一部简洁的惊人的附有大量插图的指南，导向正在改变我们的宇宙观并危及我们最神圣的信仰系统的一些发现。没有任何一本书像《大设计》这样信息丰富，这样刺激。
THE FIRST MAJOR WORK IN NEARLY A DECADE BY ONE OF THE WORLD’S GREAT THINKERS—A MARVELOUSLY CONCISE BOOK WITH NEW ANSWERS TO THE ULTIMATE QUESTIONS OF LIFE
When and how did the universe begin? Why are we here? Why is there something rather than nothing? What is the nature of reality? Why are the laws of nature so finely tuned as to allow for the existence of beings like ourselves? And, finally, is the apparent “grand design” of our universe evidence of a benevolent creator who set things in motion—or does science offer another explanation?
The most fundamental questions about the origins of the universe and of life itself, once the province of philosophy, now occupy the territory where scientists, philosophers, and theologians meet—if only to disagree. In their new book, Stephen Hawking and Leonard Mlodinow present the most recent scientific thinking about the mysteries of the universe, in nontechnical language marked by both brilliance and simplicity.
In The Grand Design they explain that according to quantum theory, the cosmos does not have just a single existence or history, but rather that every possible history of the universe exists simultaneously. When applied to the universe as a whole, this idea calls into question the very notion of cause and effect. But the “top-down” approach to cosmology that Hawking and
Mlodinow describe would say that the fact that the past takes no definite form means that we create history by observing it, rather than that history creates us. The authors further explain that we ourselves are the product of quantum fluctuations in the very early universe, and show how quantum theory predicts the “multiverse”—the idea that ours is just one of many universes that appeared spontaneously out of nothing, each with different laws of nature.
Along the way Hawking and Mlodinow question the conventional concept of reality, posing a “model-dependent” theory of reality as the best we can hope to find. And they conclude with a riveting assessment of M-theory, an explanation of the laws governing us and our universe that is currently the only viable candidate for a complete “theory of everything.” If confirmed, they write, it will be the unified theory that Einstein was looking for, and the ultimate triumph of human reason.
A succinct, startling, and lavishly illustrated guide to discoveries that are altering our understanding and threatening some of our most cherished belief systems, The Grand Design is a book that will inform—and provoke—like no other.
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大设计

Book Description
"A Brief History of Time", published in 1988, has been a landmark volume in scientific writing and in worldwide acclaim and popularity, with more than nine million copies sold. That edition was on the cutting edge of what was then known about the nature of the universe. Since its publication, however, there have been extraordinary advances in the technology of observing both the micro- and the macrocosmic world, confirming many of Professor Hawking's predictions. Eager to bring to his original text the new knowledge revealed by these observations, Hawking has written a new introduction, updated chapters throughout, and added an entirely new chapter on Wormholes and Time Travel.
"A Brief History of Time" has guided nonscientists everywhere to confront the supreme questions of the nature of time and the universe, taking them to distant galaxies, black holes, alternate dimensions — as close as man has ever ventured to the mind of God. This anniversary edition makes vividly clear why Professor Hawking's eloquent classic has transformed our view of the universe.
Amazon.com
Stephen Hawking, one of the most brilliant theoretical physicists in history, wrote the modern classic A Brief History of Time to help nonscientists understand the questions being asked by scientists today: Where did the universe come from? How and why did it begin? Will it come to an end, and if so, how? Hawking attempts to reveal these questions (and where we're looking for answers) using a minimum of technical jargon. Among the topics gracefully covered are gravity, black holes, the Big Bang, the nature of time, and physicists' search for a grand unifying theory. This is deep science; these concepts are so vast (or so tiny) as to cause vertigo while reading, and one can't help but marvel at Hawking's ability to synthesize this difficult subject for people not used to thinking about things like alternate dimensions. The journey is certainly worth taking, for, as Hawking says, the reward of understanding the universe may be a glimpse of "the mind of God."
--Therese Littleton
From Library Journal
A new edition?with pictures?for those who couldn't fathom the original.
About Author
Stephen Hawking, who was born on the anniversary of Galileo's death in 1942, holds Isaac Newton's chair as Lucasian Professor of Mathematics at the University of Cambridge. Widely regarded as the most brilliant theoretical physicist since Einstein, he is also the author of Black Holes and Baby Universes, a collection of essays published in 1993, as well as numerous scientific papers and books.
Book Dimension :
length: (cm)22.8 　　　 　　　　　 　 width:(cm)15.5
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时间简史(插图本)
注：该书有2个封面内容完全一致，货品随机发送

The world-famous cosmologist and #1 bestselling author of A Brief History of Time leaves us with his final thoughts on the biggest questions facing humankind.
Stephen Hawking was the most renowned scientist since Einstein, known both for his groundbreaking work in physics and cosmology and for his mischievous sense of humor. He educated millions of readers about the origins of the universe and the nature of black holes, and inspired millions more by defying a terrifying early prognosis of ALS, which originally gave him only two years to live. In later life he could communicate only by using a few facial muscles, but he continued to advance his field and serve as a revered voice on social and humanitarian issues.
Hawking not only unraveled some of the universe’s greatest mysteries but also believed science plays a critical role in fixing problems here on Earth. Now, as we face immense challenges on our planet—including climate change, the threat of nuclear war, and the development of artificial intelligence—he turns his attention to the most urgent issues facing us.
Will humanity survive? Should we colonize space? Does God exist? These are just a few of the questions Hawking addresses in this wide-ranging, passionately argued final book from one of the greatest minds in history.
Featuring a foreword by Eddie Redmayne, who won an Oscar playing Stephen Hawking, an introduction by Nobel Laureate Kip Thorne, and an afterword from Hawking’s daughter, Lucy, Brief Answers to the Big Questions is a brilliant last message to the world.

Stephen Hawking was the most renowned scientist since Einstein, known both for his groundbreaking work in physics and cosmology and for his mischievous sense of humor. He educated millions of readers about the origins of the universe and the nature of black holes, and inspired millions more by defying a terrifying early prognosis of ALS, which originally gave him only two years to live. In later life he could communicate only by using a few facial muscles, but he continued to advance his field and serve as a revered voice on social and humanitarian issues.
Hawking not only unraveled some of the universe’s greatest mysteries but also believed science plays a critical role in fixing problems here on Earth. Now, as we face immense challenges on our planet—including climate change, the threat of nuclear war, and the development of artificial intelligence—he turns his attention to the most urgent issues facing us.
Will humanity survive? Should we colonize space? Does God exist? These are just a few of the questions Hawking addresses in this wide-ranging, passionately argued final book from one of the greatest minds in history.
Featuring a foreword by Eddie Redmayne, who won an Oscar for playing Stephen Hawking, an introduction by Nobel Laureate Kip Thorne, and an afterword from Hawking’s daughter, Lucy, Brief Answers to the Big Questions is a brilliant last message to the world.

My Brief History recounts Stephen Hawking’s improbable journey, from his postwar London boyhood to his years of international acclaim and celebrity. Lavishly illustrated with rarely seen photographs, this concise, witty, and candid account introduces readers to a Hawking rarely glimpsed in previous books: the inquisitive schoolboy whose classmates nicknamed him Einstein; the jokester who once placed a bet with a colleague over the existence of a particular black hole; and the young husband and father struggling to gain a foothold in the world of physics and cosmology.
Writing with characteristic humility and humor, Hawking opens up about the challenges that confronted him following his diagnosis of ALS at age twenty-one. Tracing his development as a thinker, he explains how the prospect of an early death urged him onward through numerous intellectual breakthroughs, and talks about the genesis of his masterpiece A Brief History of Time—one of the iconic books of the twentieth century.
Clear-eyed, intimate, and wise, My Brief History opens a window for the rest of us into Hawking’s personal cosmos.

Amazon.com
With a title inspired as much by Douglas Adams' Hitchhiker series as Einstein, The Theory of Everything delivers almost as much as it promises. Transcribed from Stephen Hawking's Cambridge Lectures, the slim volume may not present a single theory unifying gravity with the other fundamental forces, but it does carefully explain the state of late 20th-century physics with the great scientist's characteristic humility and charm. Explicitly shunning math, Hawking explains the fruits of 100 years of heavy thinking with metaphors that are simple but never condescending--he compares the settling of the newborn universe into symmetry to the formation of ice crystals in a glass of water, for example. While he explores his own work (especially when speaking about black holes), he also discusses the important milestones achieved by others like Richard Feynman. Though occasionally an impenetrably obscure phrase does slip by, the reader will find the bulk of the text enlightening and engaging. The material, from the nature of time to the possibility that the universe has no beginning or end, is rich and deep and inevitably ignites metaphysical thinking. After all, Hawking is famous for his "we would know the mind of God" remark, which ends the final lecture herein. --Rob Lightner --This text refers to an out of print or unavailable edition of this title.

史蒂芬．霍金或許是這個時代最聰明的宇宙學家。
他以一系列的暢銷科普著作讓全球讀者驚嘆不已，
一步步揭開宇宙的奧妙。
現在，霍金首度將目光轉向自己，
向世人揭露他的人生與思考演進。
《我的人生簡史》訴說史蒂芬．霍金不可思議的生命之旅，首度由霍金本人現身說法，從二次世界大戰後倫敦的童年生活講起，一直到他成為舉世聞名的科學家。本書搭配大量珍貴罕見的照片，是一本簡潔明快、妙語如珠，又坦白直爽的科學家成長故事，可讓讀者一窺霍金前所未見的生活面貌：小時候的霍金，是個好奇愛發問的學童，同學間給他的綽號是「愛因斯坦」。因為作業凌亂，字跡很醜，還有同學用糖果打賭他這輩子大概成不了大事……霍金是一位愛開玩笑的幽默科學家，曾經以一年份的《閣樓》雜誌和同行打賭黑洞是否真的存在；他也是一位年輕的丈夫和父親，歷經兩次婚姻，努力突破身體的障礙，在物理學和宇宙學的領域掙得立足之地。
霍金以獨樹一幟的幽默詼諧和真情至性，暢談二十一歲被診斷患有漸凍人症之後所面臨的人生挑戰。最早，他剛出現漸凍症病徵，行動變笨拙，曾經因為爬樓梯摔跤，醫生竟然只是告誡他：「少喝點啤酒吧！」回首成爲舉世最知名的科學家的歷程，他談到如何因為認知到可能將不久於人世，進而推動他奮力向前，不斷獲得知識上的大突破。本書也談到他那本全球知名，而且也是二十世紀最具代表性的時代科普經典巨作《時間簡史》的戲劇化誕生過程。本書更首度披露因為氣切手術喪失說話能力，霍金必須透過輪椅上的個人電腦和語音合成器，以一分鐘拼出三個字的速度，完成七本科普著作以及許多學術及公眾演講的艱苦過程……
《我的人生簡史》清明透徹、交心剖析又睿智雋永，為世人打開一扇窗戶，窺進霍金個人的宇宙。
名人推薦
霍金以他令人稱羨的無盡睿智，觀察並理解著我們大部分人都難以仰望企及的宇宙事物……但他的謙卑又激勵了我們所有的人。《每日郵報》（Daily Mail）
霍金的筆觸生動感人……讓人彷彿聆聽著從漸凍症的黑洞中傳來他的輕聲話語。《金融時報》（Financial Times）
簡潔優雅，如宇宙星光般閃耀的偉人畫像。《自然》雜誌（Nature）
他的簡潔，讓一切顯得更加勇敢而強大。英國《衛報》（The Gurdian）
書裡傳達了療慰人心的希望……值得一讀。《週日郵報》（Mail on Sunday）

Stephen Hawking’s phenomenal, multimillion-copy bestseller, A Brief History of Time , introduced the ideas of this brilliant theoretical physicist to readers all over the world.
Now, in a major publishing event, Hawking returns with a lavishly illustrated sequel that unravels the mysteries of the major breakthroughs that have occurred in the years since the release of his acclaimed first book.
The Universe in a Nutshell
• Quantum mechanics
• M-theory
• General relativity
• 11-dimensional supergravity
• 10-dimensional membranes
• Superstrings
• P-branes
• Black holes
One of the most influential thinkers of our time, Stephen Hawking is an intellectual icon, known not only for the adventurousness of his ideas but for the clarity and wit with which he expresses them. In this new book Hawking takes us to the cutting edge of theoretical physics, where truth is often stranger than fiction, to explain in laymen’s terms the principles that control our universe.
Like many in the community of theoretical physicists, Professor Hawking is seeking to uncover the grail of science — the elusive Theory of Everything that lies at the heart of the cosmos. In his accessible and often playful style, he guides us on his search to uncover the secrets of the universe — from supergravity to supersymmetry, from quantum theory to M-theory, from holography to duality.
He takes us to the wild frontiers of science, where superstring theory and p-branes may hold the final clue to the puzzle. And he lets us behind the scenes of one of his most exciting intellectual adventures as he seeks “to combine Einstein’s General Theory of Relativity and Richard Feynman’s idea of multiple histories into one complete unified theory that will describe everything that happens in the universe.”
With characteristic exuberance, Professor Hawking invites us to be fellow travelers on this extraordinary voyage through space-time. Copious four-color illustrations help clarify this journey into a surreal wonderland where particles, sheets, and strings move in eleven dimensions; where black holes evaporate and disappear, taking their secret with them; and where the original cosmic seed from which our own universe sprang was a tiny nut.
The Universe in a Nutshell is essential reading for all of us who want to understand the universe in which we live. Like its companion volume, A Brief History of Time , it conveys the excitement felt within the scientific community as the secrets of the cosmos reveal themselves.

Was there a beginning of time? Could time run backwards? Is the universe infinite or does it have boundaries? These are just some of the questions considered in an internationally acclaimed masterpiece by one of the world's greatest thinkers. It begins by reviewing the great theories of the cosmos from Newton to Einstein, before delving into the secrets which still lie at the heart of space and time, from the Big Bang to black holes, via spiral galaxies and strong theory. To this day "A Brief History of Time" remains a staple of the scientific canon, and its succinct and clear language continues to introduce millions to the universe and its wonders.

In the years since its publication in 1988, Stephen Hawking's A Brief History of Time has established itself as a landmark volume in scientific
writing. It has also become an international publishing phenomenon, translated into forty languages and selling over nine million copies. The book was on the cutting edge of what was then known about the nature of the universe, but since then there have been extraordinary advances in the
technology of observing both the micro- and the macrocosmic world. These observations have confirmed many of Professor Hawking's theoretical predictions
in the first edition of his book, including the recent discoveries of the Cosmic Background Explorer satellite (COBE), which probed back in time to within 300,000 years of the universe's beginning and revealed the wrinkles in the fabric of space-time that he had projected. Eager to bring to his original text the new knowledge revealed by these many observations, as well as his most recent research, for this revised and expanded edition Hawking has prepared a new introduction to the book, revised and updated the original chapters throughout, and written an entirely new chapter on the fascinating subject of wormholes and time travel. In addition, to heighten understanding of complex concepts that readers may have found difficult to grasp despite the clarity and wit of Hawking's writing, this edition is magnificently enhanced throughout with more than 240 full-color illustrations, including satellite images, photographs made possible by spectacular new technological advances such as the Hubble telescope, and computer- generated images of three- and four-dimensional realities. Detailed captions clarify these illustrations, enabling readers to experience the vastness of intergalactic space, the nature of black holes, and the microcosmic world of
particle physics in which matter and antimatter collide. A classic work that now brings to the reader the latest understanding of cosmology, The Illustrated A Brief History of Time is the story of the ongoing search for the tantalizing secrets at the heart of time and space.

From One of the Most Brilliant Minds of Our Time
Comes a Book that Clarifies His Most Important Ideas
Stephen Hawking’s worldwide bestseller, A Brief History of Time , remains one of the landmark volumes in scientific writing of our time. But for years readers have asked for a more accessible formulation of its key concepts—the nature of space and time, the role of God in creation, and the history and future of the universe.
Professor Hawking’s response is this new work that will guide nonscientists everywhere in the ongoing search for the tantalizing secrets at the heart of time and space.…

Although “briefer,” this book is much more than a mere explanation of Hawking’s earlier work. A Briefer History of Time both clarifies and expands on the great subjects of the original, and records the latest developments in the field—from string theory to the search for a unified theory of all the forces of physics. Thirty-seven full-color illustrations enhance the text and make A Briefer History of Time an exhilarating and must-have addition in its own right to the great literature of science and ideas.

Was there a beginning of time? Could time run backwards? Is the universe infinite or does it have boundaries? These are just some of the questions considered in an internationally acclaimed masterpiece which begins by reviewing the great theories of the cosmos from Newton to Einstein, before delving into the secrets which still lie at the heart of space and time.

Book Description
Was there a beginning of time? Could time run backwards? Is the universe infinte or does it have boundaries? These are just some of the questions considered in an internationally acclaimed masterpiece which begins by reviewing the great theories of the cosmos from Newton to Einstein, before delving into the secrets which still lie at the heart of space and time.
Reviews
"One of the most brilliant scientific minds since Einstein"
Daily Express
"Master of the Universe…… One scientist's courageous voyage to the frontiers of the Cosmos"
Newsweek
"He can explain the complexities of cosmological physics with an engaging combination of clarity and wit……His is a brain of extraordinary power"
Observer
"To follow such a fine mind as it exposes such great problems is an exciting experience."
Sunday Times

This is Stephen Hawking's updated, expanded and illustrated edition of his celebrated work which includes the most recent developments in the field, many of which were forecast by him. At the same time, he explains his complex theories through a fresh visual dimension. Over one hunded and fifty stunning colour illustrations have been specially commissioned for this purpose to help the reader understand what have become popular mythic images of our century, but which nonetheless remain difficult, abstract ideas to grasp. It includes a new introduction written specially for this edition.

THE NO.1 SUNDAY TIMES BESTSELLER

'A beautiful little book by a brilliant mind' DAILY TELEGRAPH

'Effortlessly instructive, absorbing, up to the minute and - where it matters - witty' GUARDIAN

The world-famous cosmologist and #1 bestselling author of A Brief History of Time leaves us with his final thoughts on the universe's biggest questions in this brilliant posthumous work.

Is there a God?

How did it all begin?

Can we predict the future?

What is inside a black hole?

Is there other intelligent life in the universe?

Will artificial intelligence outsmart us?

How do we shape the future?

Will we survive on Earth?

Should we colonise space?

Is time travel possible?

Throughout his extraordinary career, Stephen Hawking expanded our understanding of the universe and unravelled some of its greatest mysteries. But even as his theoretical work on black holes, imaginary time and multiple histories took his mind to the furthest reaches of space, Hawking always believed that science could also be used to fix the problems on our planet.

And now, as we face potentially catastrophic changes here on Earth - from climate change to dwindling natural resources to the threat of artificial super-intelligence - Stephen Hawking turns his attention to the most urgent issues for humankind.

Wide-ranging, intellectually stimulating, passionately argued, and infused with his characteristic humour, Brief Answers to the Big Questions, the final book from one of the greatest minds in history, is a personal view on the challenges we face as a human race, and where we, as a planet, are heading next.

A percentage of all royalties will go to charity.

THE FIRST MAJOR WORK IN NEARLY A DECADE BY ONE OF THE WORLD’S GREAT THINKERS—A MARVELOUSLY CONCISE BOOK WITH NEW ANSWERS TO THE ULTIMATE QUESTIONS OF LIFE
 
When and how did the universe begin? Why are we here? Why is there something rather than nothing? What is the nature of reality? Why are the laws of nature so finely tuned as to allow for the existence of beings like ourselves? And, finally, is the apparent “grand design” of our universe evidence of a benevolent creator who set things in motion—or does science offer another explanation?

The most fundamental questions about the origins of the universe and of life itself, once the province of philosophy, now occupy the territory where scientists, philosophers, and theologians meet—if only to disagree. In their new book, Stephen Hawking and Leonard Mlodinow present the most recent scientific thinking about the mysteries of the universe, in nontechnical language marked by both brilliance and simplicity.

In The Grand Design they explain that according to quantum theory, the cosmos does not have just a single existence or history, but rather that every possible history of the universe exists simultaneously. When applied to the universe as a whole, this idea calls into question the very notion of cause and effect. But the “top-down” approach to cosmology that Hawking and

Mlodinow describe would say that the fact that the past takes no definite form means that we create history by observing it, rather than that history creates us. The authors further explain that we ourselves are the product of quantum fluctuations in the very early universe, and show how quantum theory predicts the “multiverse”—the idea that ours is just one of many universes that appeared spontaneously out of nothing, each with different laws of nature.

Along the way Hawking and Mlodinow question the conventional concept of reality, posing a “model-dependent” theory of reality as the best we can hope to find. And they conclude with a riveting assessment of M-theory, an explanation of the laws governing us and our universe that is currently the only viable candidate for a complete “theory of everything.” If confirmed, they write, it will be the unified theory that Einstein was looking for, and the ultimate triumph of human reason.

A succinct, startling, and lavishly illustrated guide to discoveries that are altering our understanding and threatening some of our most cherished belief systems, The Grand Design is a book that will inform—and provoke—like no other.


From the Hardcover edition.

Autor przedstawia idee prezentujące najnowsze odkrycia w dziedzinie badania wszechświata; wykracza poza teorię względności, mechanikę kwantową i wielki wybuch, aby sięgnąć do tańca geometrii, który doprowadził do powstania wszechświata, krainy zjawiskowych zdarzeń fizyki cząstek elementarnych, w której materia zderza się z antymaterią.

Einstein said that the most incomprehensible thing about the universe is that it is comprehensible. But was he right? Can the quantum theory of fields and Einstein's general theory of relativity, the two most accurate and successful theories in all of physics, be united in a single quantum theory of gravity? Can quantum and cosmos ever be combined? On this issue, two of the world's most famous physicists - Stephen Hawking ("A Brief History of Time") and Roger Penrose ("The Emperor's New Mind and Shadows of the Mind") - disagree. Here, they explain their positions in a work based on six lectures with a final debate, all originally presented at the Isaac Newton Institute for Mathematical Sciences at the University of Cambridge. How could quantum gravity, a theory that could explain the earlier moments of the big bang and the physics of the enigmatic objects known as black holes, be constructed? Why does our patch of the universe look just as Einstein predicted, with no hint of quantum effects in sight? What strange quantum processes can cause black holes to evaporate, and what happens to all the information that they swallow? Why does time go forward, not backward? In this book, the two opponents touch on all these questions. Penrose, like Einstein, refuses to believe that quantum mechanics is a final theory. Hawking thinks otherwise, and argues that general relativity simply cannot account for how the universe began. Only a quantum theory of gravity, coupled with the no-boundary hypothesis, can ever hope to explain adequately what little we can observe about our universe. Penrose, playing the realist to Hawking's positivist, thinks that the universe is unbounded and will expand forever. The universe can be understood, he argues, in terms of the geometry of light cones, the compression and distortion of spacetime, and by the use of twistor theory. With the final debate, the reader will come to realize how much Hawking and Penrose diverge in their opinions of the ultimate quest to combine quantum mechanics and relativity, and how differently they have tried to comprehend the incomprehensible.

Una introducción a la historia y la estructura del universo.
El gran físico británico nos ofrece la historia del universo, desde las primeras teorías del mundo griego y de la Edad Media hasta el Big Bang y los agujeros negros, en un libro didáctico y accesible a todos los públicos. Newton, Einstein, la mecánica cuántica y la teoría de la gran unificación desfilan por estas páginas, acercando al lector de manera clara y amena los misterios del universo.