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Black Holes And Baby Universes And Other Essays Pdf

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Black Holes and Baby Universes

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NEW YORK TIMES BESTSELLER • Thirteen extraordinary essays shed new light on the mystery of the universe—and on one of the most brilliant thinkers of ou ...

  • L'auteur : ,
  • Editeur: Bantam
  • ISBN: 0307790452
  • Genre: Science
  • Nombre de pages: 192
  • Langue: French/English
  • Vues: 1779
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Détails: NEW YORK TIMES BESTSELLER • Thirteen extraordinary essays shed new light on the mystery of the universe—and on one of the most brilliant thinkers of our time. In his phenomenal bestseller A Brief History of Time, Stephen Hawking literally transformed the way we think about physics, the universe, reality itself. In these thirteen essays and one remarkable extended interview, the man widely regarded as the most brilliant theoretical physicist since Einstein returns to reveal an amazing array of possibilities for understanding our universe. Building on his earlier work, Hawking discusses imaginary time, how black holes can give birth to baby universes, and scientists’ efforts to find a complete unified theory that would predict everything in the universe. With his characteristic mastery of language, his sense of humor and commitment to plain speaking, Stephen Hawking invites us to know him better—and to share his passion for the voyage of intellect and imagination that has opened new ways to understanding the very nature of the cosmos.


Black Holes

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The legendary physicist explores his favorite subject in a pair of enlightening, accessible, and cleverly illustrated essays for curious readers, originall ...

  • L'auteur : Stephen Hawking
  • Editeur: Bantam
  • ISBN: 0399179003
  • Genre: Science
  • Nombre de pages: 71
  • Langue: French/English
  • Vues: 1448
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Détails: The legendary physicist explores his favorite subject in a pair of enlightening, accessible, and cleverly illustrated essays for curious readers, originally delivered as BBC lectures. “It is said that fact is sometimes stranger than fiction, and nowhere is that more true than in the case of black holes. Black holes are stranger than anything dreamed up by science-fiction writers, but they are firmly matters of science fact.” For decades, Stephen Hawking has been fascinated by black holes. He believes that if we understood the challenges they pose to the very nature of space and time, we could unlock the secrets of the universe. In these conversational pieces, Hawking’s sense of wonder is infectious as he holds forth on what we know about black holes, what we still don’t know, and theoretical answers to more specific questions, such as: What would happen if you ever got sucked into one? Annotated and with an introduction by BBC News science editor David Shukman, featuring whimsical and illuminating illustrations, Black Holes offers a candid peek into one of the great scientific mysteries of all time. Praise for Stephen Hawking “[Hawking] can explain the complexities of cosmological physics with an engaging combination of clarity and wit. . . . His is a brain of extraordinary power.”—The New York Review of Books “Hawking clearly possesses a natural teacher’s gifts—easy, good-natured humor and an ability to illustrate highly complex propositions with analogies plucked from daily life.”—The New York Times “A high priest of physics, one of a handful of theorists who may be on the verge of reading God’s mind.”—Los Angeles Times


Death by Black Hole: And Other Cosmic Quandaries

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"[Tyson] tackles a great range of subjects…with great humor, humility, and—most important—humanity." —Entertainment Weekly Loyal readers of the mon ...

  • L'auteur : Neil deGrasse Tyson
  • Editeur: W. W. Norton & Company
  • ISBN: 9780393113785
  • Genre: Science
  • Nombre de pages: 384
  • Langue: French/English
  • Vues: 649
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Détails: "[Tyson] tackles a great range of subjects…with great humor, humility, and—most important—humanity." —Entertainment Weekly Loyal readers of the monthly "Universe" essays in Natural History magazine have long recognized Neil deGrasse Tyson's talent for guiding them through the mysteries of the cosmos with clarity and enthusiasm. Bringing together more than forty of Tyson's favorite essays, Death by Black Hole explores a myriad of cosmic topics, from what it would be like to be inside a black hole to the movie industry's feeble efforts to get its night skies right. One of America's best-known astrophysicists, Tyson is a natural teacher who simplifies the complexities of astrophysics while sharing his infectious fascination for our universe.


A Big Bang in a Little Room

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An award-winning science writer takes us into the lab to answer some of life's biggest questions: How was the universe created? And could we create our own ...

  • L'auteur : Zeeya Merali
  • Editeur: Basic Books
  • ISBN: 0465096611
  • Genre: Science
  • Nombre de pages: 256
  • Langue: French/English
  • Vues: 1502
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Détails: An award-winning science writer takes us into the lab to answer some of life's biggest questions: How was the universe created? And could we create our own? What if you could become God, with the ability to build a whole new universe? As startling as it sounds, modern physics suggests that within the next two decades, scientists may be able to perform this seemingly divine feat-to concoct an entirely new baby universe, complete with its own physical laws, star systems, galaxies, and even intelligent life. A Big Bang in a Little Room takes the reader on a journey through the history of cosmology and unravels-particle by particle, theory by theory, and experiment by experiment-the ideas behind this provocative claim made by some of the most respected physicists alive today. Beyond simply explaining the science, A Big Bang in a Little Room also tells the story of the people who have been laboring for more than thirty years to make this seemingly impossible dream a reality. What has driven them to continue on what would seem, at first glance, to be a quixotic quest? This mind-boggling book reveals that we can nurse other worlds in the tiny confines of a lab, raising a daunting prospect: Was our universe, too, brought into existence by a daring creator?


Black Holes, Wormholes and Time Machines, Second Edition

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Bringing the material up to date, Black Holes, Wormholes and Time Machines, Second Edition captures the new ideas and discoveries made in physics since the ...

  • L'auteur : Jim Al-Khalili
  • Editeur: Taylor & Francis
  • ISBN: 1439885605
  • Genre: Science
  • Nombre de pages: 206
  • Langue: French/English
  • Vues: 615
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Détails: Bringing the material up to date, Black Holes, Wormholes and Time Machines, Second Edition captures the new ideas and discoveries made in physics since the publication of the best-selling first edition. While retaining the popular format and style of its predecessor, this edition explores the latest developments in high-energy astroparticle physics and Big Bang cosmology. The book continues to make the ideas and theories of modern physics easily understood by anyone, from researchers to students to general science enthusiasts. Taking you on a journey through space and time, author Jim Al-Khalili covers some of the most fascinating topics in physics today, including: Black holes Space warps The Big Bang Time travel Wormholes Parallel universes Professor Al-Khalili explains often complex scientific concepts in simple, nontechnical terms and imparts an appreciation of the cosmos, helping you see how time traveling may not be so far-fetched after all.


The Life of the Cosmos

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Lee Smolin offers a new theory of the universe that is at once elegant, comprehensive, and radically different from anything proposed before. Smolin posits ...

  • L'auteur : Lee Smolin
  • Editeur: Oxford University Press
  • ISBN: 0199839360
  • Genre: Science
  • Nombre de pages: 368
  • Langue: French/English
  • Vues: 1098
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Détails: Lee Smolin offers a new theory of the universe that is at once elegant, comprehensive, and radically different from anything proposed before. Smolin posits that a process of self organization like that of biological evolution shapes the universe, as it develops and eventually reproduces through black holes, each of which may result in a new big bang and a new universe. Natural selection may guide the appearance of the laws of physics, favoring those universes which best reproduce. The result would be a cosmology according to which life is a natural consequence of the fundamental principles on which the universe has been built, and a science that would give us a picture of the universe in which, as the author writes, "the occurrence of novelty, indeed the perpetual birth of novelty, can be understood." Smolin is one of the leading cosmologists at work today, and he writes with an expertise and force of argument that will command attention throughout the world of physics. But it is the humanity and sharp clarity of his prose that offers access for the layperson to the mind bending space at the forefront of today's physics.


An Introduction to Black Holes, Information and the String Theory Revolution

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' Over the last decade the physics of black holes has been revolutionized by developments that grew out of Jacob Bekenstein's realization that black holes ...

  • L'auteur : Leonard Susskind,James Lindesay
  • Editeur: World Scientific
  • ISBN: 9814481521
  • Genre: Science
  • Nombre de pages: 200
  • Langue: French/English
  • Vues: 829
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Détails: ' Over the last decade the physics of black holes has been revolutionized by developments that grew out of Jacob Bekenstein's realization that black holes have entropy. Stephen Hawking raised profound issues concerning the loss of information in black hole evaporation and the consistency of quantum mechanics in a world with gravity. For two decades these questions puzzled theoretical physicists and eventually led to a revolution in the way we think about space, time, matter and information. This revolution has culminated in a remarkable principle called “The Holographic Principle”, which is now a major focus of attention in gravitational research, quantum field theory and elementary particle physics. Leonard Susskind, one of the co-inventors of the Holographic Principle as well as one of the founders of String theory, develops and explains these concepts. Contents:Black Holes and Quantum Mechanics:The Schwarzschild Black HoleScalar Wave Equation in a Schwarzschild BackgroundQuantum Fields in Rindler SpaceEntropy of the Free Quantum Field in Rindler SpaceThermodynamics of Black HolesCharged Black HolesThe Stretched HorizonThe Laws of NatureThe Puzzle of Information Conservation in Black Hole EnvironmentsHorizons and the UV/IR ConnectionEntropy Bounds and Holography:Entropy BoundsThe Holographic Principle and Anti de Sitter SpaceBlack Holes in a BoxBlack Holes and Strings:StringsEntropy of Strings and Black Holes Readership: Graduate students, researchers and theoretical physicists. Keywords:Black Hole;String Theory;Bekenstein;Hawking;Quantum Gravity;Holographic PrincipleKey Features:A unique exposition of the foundations of the quantum theory of black holes including the impact of string theory, the idea of black hole complementarity and the holographic principleAims to educate the physicist or student of physics who is not an expert on string theory, on the revolution that has grown out of black hole physics and string theoryReviews:“A remarkable feature of this book is that relatively little specialized knowledge is required from the reader; a cursory acquaintance with quantum mechanics and relativity is sufficient. This is impressive, given that the authors cover some of the hottest topics in current research … conceptually the book is truly challenging. It makes us think about many ideas we take for granted and shakes the foundations of our understanding of basic physics. It provides a rollercoaster ride into the treacherous and largely uncharted land of quantum gravity. This book is highly recommended for those interested in these fascinating topics.”CERN Courier “Students and non-specialists will welcome this book, which provides an entry into this fascinating realm at a level that can be enjoyed by an enterprising undergraduate … This well-planned, stimulating and sometimes provocative book can be enthusiastically recommended.”Classical and Quantum Gravity “The authors, both established researchers, present a review of black hole physics in one of the simplest and most efficient ways … The book will be useful for students of physics and for everyone interested in understanding ways in which knowledge is generated theoretically.”Mathematical Reviews '


The Grand Design

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#1 NEW YORK TIMES BESTSELLER When and how did the universe begin? Why are we here? What is the nature of reality? Is the apparent “grand design” of our ...

  • L'auteur : Stephen Hawking,Leonard Mlodinow
  • Editeur: Bantam
  • ISBN: 0553907077
  • Genre: Science
  • Nombre de pages: 208
  • Langue: French/English
  • Vues: 569
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Détails: #1 NEW YORK TIMES BESTSELLER When and how did the universe begin? Why are we here? What is the nature of reality? Is the apparent “grand design” of our universe evidence of a benevolent creator who set things in motion—or does science offer another explanation? In this startling and lavishly illustrated book, Stephen Hawking and Leonard Mlodinow present the most recent scientific thinking about these and other abiding mysteries of the universe, in nontechnical language marked by brilliance and simplicity. According to quantum theory, the cosmos does not have just a single existence or history. The authors explain that we ourselves are the product of quantum fluctuations in the 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. They conclude with a riveting assessment of M-theory, an explanation of the laws governing our universe that is currently the only viable candidate for a “theory of everything”: the unified theory that Einstein was looking for, which, if confirmed, would represent the ultimate triumph of human reason.


The Glass Castle

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Now a major motion picture from Lionsgate starring Brie Larson, Woody Harrelson, and Naomi Watts. MORE THAN SEVEN YEARS ON THE NEW YORK TIMES BESTSELLER LI ...

  • L'auteur : Jeannette Walls
  • Editeur: Simon and Schuster
  • ISBN: 9781416550600
  • Genre: Biography & Autobiography
  • Nombre de pages: 304
  • Langue: French/English
  • Vues: 330
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Détails: Now a major motion picture from Lionsgate starring Brie Larson, Woody Harrelson, and Naomi Watts. MORE THAN SEVEN YEARS ON THE NEW YORK TIMES BESTSELLER LIST The perennially bestselling, extraordinary, one-of-a-kind, “nothing short of spectacular” (Entertainment Weekly) memoir from one of the world’s most gifted storytellers. The Glass Castle is a remarkable memoir of resilience and redemption, and a revelatory look into a family at once deeply dysfunctional and uniquely vibrant. When sober, Jeannette’s brilliant and charismatic father captured his children’s imagination, teaching them physics, geology, and how to embrace life fearlessly. But when he drank, he was dishonest and destructive. Her mother was a free spirit who abhorred the idea of domesticity and didn’t want the responsibility of raising a family. The Walls children learned to take care of themselves. They fed, clothed, and protected one another, and eventually found their way to New York. Their parents followed them, choosing to be homeless even as their children prospered. The Glass Castle is truly astonishing—a memoir permeated by the intense love of a peculiar but loyal family.


George and the Unbreakable Code

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George and Annie are off on another cosmic adventure to figure out why strange things are happening on Earth in the fourth book of the George’s Secret Ke ...

  • L'auteur : Stephen Hawking,Lucy Hawking
  • Editeur: Simon and Schuster
  • ISBN: 1481466291
  • Genre: Juvenile Fiction
  • Nombre de pages: 352
  • Langue: French/English
  • Vues: 816
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Détails: George and Annie are off on another cosmic adventure to figure out why strange things are happening on Earth in the fourth book of the George’s Secret Key series from Stephen and Lucy Hawking. George and his best friend Annie haven’t had any space adventures for a while and they’re missing the excitement. But not for long, because seriously strange things have started happening. Banks are handing out free money, supermarkets aren’t able to charge for their products so people are getting free food, and aircrafts are refusing to fly. It looks like the world’s biggest and best computers have all been hacked. And no one knows why… It’s up to George and Annie to travel further into space than ever before in order to find out what—or who—is behind it.


Black Hole

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The award-winning science writer “packs a lot of learning into a deceptively light and enjoyable read” exploring the contentious history of the black h ...

  • L'auteur : Marcia Bartusiak
  • Editeur: Yale University Press
  • ISBN: 0300213638
  • Genre: Science
  • Nombre de pages: 252
  • Langue: French/English
  • Vues: 613
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Détails: The award-winning science writer “packs a lot of learning into a deceptively light and enjoyable read” exploring the contentious history of the black hole (New Scientist). For more than half a century, physicists and astronomers engaged in heated dispute over the possibility of black holes in the universe. The strange notion of a space-time abyss from which not even light escapes seemed to confound all logic. Now Marcia Bartusiak, author of Einstein’s Unfinished Symphony and The Day We Found the Universe, recounts the frustrating, exhilarating, and at times humorous battles over one of history’s most dazzling ideas. Bartusiak shows how the black hole helped revive Einstein’s greatest achievement, the general theory of relativity, after decades of languishing in obscurity. Not until astronomers discovered such surprising new phenomena as neutron stars and black holes did the once-sedate universe transform into an Einsteinian cosmos, filled with sources of titanic energy that can be understood only in the light of relativity. Black Hole explains how Albert Einstein, Stephen Hawking, and other leading thinkers completely changed the way we see the universe.


George and the Blue Moon

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George and Annie are off on another cosmic adventure inspired by the Mars Expedition in the fifth book of the George’s Secret Key series from Stephen and ...

  • L'auteur : Stephen Hawking,Lucy Hawking
  • Editeur: Simon and Schuster
  • ISBN: 1481466321
  • Genre: Juvenile Fiction
  • Nombre de pages: 336
  • Langue: French/English
  • Vues: 517
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Détails: George and Annie are off on another cosmic adventure inspired by the Mars Expedition in the fifth book of the George’s Secret Key series from Stephen and Lucy Hawking. George and his best friend, Annie, have been selected as junior astronauts for a program that trains young people for a future trip to Mars. This is everything they’ve ever wanted—and now they get to be a part of up-to-the minute space discoveries and meet a bunch of new friends who are as fascinated by the universe as they are. But when they arrive at space camp, George and Annie quickly learn that strange things are happening—on Earth as well as up in the skies. Mysterious space missions are happening in secret, and the astronaut training they’re undertaking gets scarier and scarier…


The Black Hole War

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What happens when something is sucked into a black hole? Does it disappear? Three decades ago, a young physicist named Stephen Hawking claimed it did-and i ...

  • L'auteur : Leonard Susskind
  • Editeur: Little, Brown
  • ISBN: 9780316032698
  • Genre: Science
  • Nombre de pages: 480
  • Langue: French/English
  • Vues: 1526
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Détails: What happens when something is sucked into a black hole? Does it disappear? Three decades ago, a young physicist named Stephen Hawking claimed it did-and in doing so put at risk everything we know about physics and the fundamental laws of the universe. Most scientists didn't recognize the import of Hawking's claims, but Leonard Susskind and Gerard t'Hooft realized the threat, and responded with a counterattack that changed the course of physics. THE BLACK HOLE WAR is the thrilling story of their united effort to reconcile Hawking's revolutionary theories of black holes with their own sense of reality-effort that would eventually result in Hawking admitting he was wrong, paying up, and Susskind and t'Hooft realizing that our world is a hologram projected from the outer boundaries of space. A brilliant book about modern physics, quantum mechanics, the fate of stars and the deep mysteries of black holes, Leonard Susskind's account of the Black Hole War is mind-bending and exhilarating reading.


The View From the Center of the Universe

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In this strikingly original book, a world-renowned cosmologist and an innovative writer of the history and philosophy of science uncover an astonishing tru ...

  • L'auteur : Joel R. Primack,Nancy Ellen Abrams
  • Editeur: Penguin
  • ISBN: 1101126884
  • Genre: Science
  • Nombre de pages: 400
  • Langue: French/English
  • Vues: 1281
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Détails: In this strikingly original book, a world-renowned cosmologist and an innovative writer of the history and philosophy of science uncover an astonishing truth: Humans actually are central to the universe. What does this mean for our culture and our personal lives? The answer is revolutionary: a science-based cosmology that allows us to understand the universe as a whole and our extraordinary place in it.


My Brief History

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NATIONAL BESTSELLER Stephen Hawking has dazzled readers worldwide with a string of bestsellers exploring the mysteries of the universe. Now, for the first ...

  • L'auteur : Stephen Hawking
  • Editeur: Bantam
  • ISBN: 0345539133
  • Genre: Science
  • Nombre de pages: 144
  • Langue: French/English
  • Vues: 913
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Détails: NATIONAL BESTSELLER Stephen Hawking has dazzled readers worldwide with a string of bestsellers exploring the mysteries of the universe. Now, for the first time, perhaps the most brilliant cosmologist of our age turns his gaze inward for a revealing look at his own life and intellectual evolution. 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.


Consider the Lobster

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Do lobsters feel pain? Did Franz Kafka have a funny bone? What is John Updike's deal, anyway? And what happens when adult video starlets meet their fans in ...

  • L'auteur : David Foster Wallace
  • Editeur: Little, Brown
  • ISBN: 0759514925
  • Genre: Literary Collections
  • Nombre de pages: 352
  • Langue: French/English
  • Vues: 1755
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Détails: Do lobsters feel pain? Did Franz Kafka have a funny bone? What is John Updike's deal, anyway? And what happens when adult video starlets meet their fans in person? David Foster Wallace answers these questions and more in essays that are also enthralling narrative adventures. Whether covering the three-ring circus of John McCain's 2000 presidential race, plunging into the wars between dictionary writers, or confronting the World's Largest Lobster Cooker at the annual Maine Lobster Festival, Wallace projects a quality of thought that is uniquely his and a voice as powerful and distinct as any in American letters.


Neil Armstrong

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Much has been written about Neil Armstrong, America's modern hero and history's most famous space traveler. Yet shy of fame and never one to steal the spot ...

  • L'auteur : Jay Barbree
  • Editeur: Macmillan
  • ISBN: 1466836342
  • Genre: Biography & Autobiography
  • Nombre de pages: 384
  • Langue: French/English
  • Vues: 1819
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Détails: Much has been written about Neil Armstrong, America's modern hero and history's most famous space traveler. Yet shy of fame and never one to steal the spotlight Armstrong was always reluctant to discuss his personal side of events. Here for the first time is the definitive story of Neil's life of flight he shared for five decades with a trusted friend – Jay Barbree. Working from 50 years of conversations he had with Neil, from notes, interviews, NASA spaceflight transcripts, and remembrances of those Armstrong trusted, Barbree writes about Neil's three passions – flight, family, and friends. This is the inside story of Neil Armstrong from the time he flew combat missions in the Korean War and then flew a rocket plane called the X-15 to the edge of space, to when he saved his Gemini 8 by flying the first emergency return from Earth orbit and then flew Apollo-Eleven to the moon's Sea of Tranquility. Together Neil and Jay discussed everything, from his love of flying, to the war years, and of course his time in space. The book is full of never-before-seen photos and personal details written down for the first time, including what Armstrong really felt when he took that first step on the moon, what life in NASA was like, his relationships with the other astronauts, and what he felt the future of space exploration should be. As the only reporter to have covered all 166 American astronaut flights and moon landings Jay knows these events intimately. Neil Armstrong himself said, "Barbree is history's most experienced space journalist. He is exceptionally well qualified to recall and write the events and emotions of our time." Through his friendship with Neil and his dedicated research, Barbree brings us the most accurate account of his friend's life of flight, the book he planned for twenty years.


Brief Answers to the Big Questions

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#1 NEW YORK TIMES BESTSELLER • The world-famous cosmologist and author of A Brief History of Time leaves us with his final thoughts on the biggest questi ...

  • L'auteur : Stephen Hawking
  • Editeur: Bantam
  • ISBN: 1984819208
  • Genre: Science
  • Nombre de pages: 256
  • Langue: French/English
  • Vues: 462
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Détails: #1 NEW YORK TIMES BESTSELLER • The world-famous cosmologist and author of A Brief History of Time leaves us with his final thoughts on the biggest questions facing humankind. “Hawking’s parting gift to humanity . . . a book every thinking person worried about humanity’s future should read.”—NPR NAMED ONE OF THE BEST BOOKS OF THE YEAR BY Forbes • The Guardian • Wired 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. Praise for Brief Answers to the Big Questions “[Hawking is] a symbol of the soaring power of the human mind.”—The Washington Post “Hawking’s final message to readers . . . is a hopeful one.”—CNN “Brisk, lucid peeks into the future of science and of humanity.”—The Wall Street Journal “Hawking pulls no punches on subjects like machines taking over, the biggest threat to Earth, and the possibilities of intelligent life in space.”—Quartz “Effortlessly instructive, absorbing, up to the minute and—where it matters—witty.”—The Guardian “This beautiful little book is a fitting last twinkle from a new star in the firmament above.”—The Telegraph


Black Hole Blues and Other Songs from Outer Space

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The authoritative story of the headline-making discovery of gravitational waves—by an eminent theoretical astrophysicist and award-winning writer. From t ...

  • L'auteur : Janna Levin
  • Editeur: Anchor
  • ISBN: 0307958205
  • Genre: Science
  • Nombre de pages: 256
  • Langue: French/English
  • Vues: 1564
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Détails: The authoritative story of the headline-making discovery of gravitational waves—by an eminent theoretical astrophysicist and award-winning writer. From the author of How the Universe Got Its Spots and A Madman Dreams of Turing Machines, the epic story of the scientific campaign to record the soundtrack of our universe. Black holes are dark. That is their essence. When black holes collide, they will do so unilluminated. Yet the black hole collision is an event more powerful than any since the origin of the universe. The profusion of energy will emanate as waves in the shape of spacetime: gravitational waves. No telescope will ever record the event; instead, the only evidence would be the sound of spacetime ringing. In 1916, Einstein predicted the existence of gravitational waves, his top priority after he proposed his theory of curved spacetime. One century later, we are recording the first sounds from space, the soundtrack to accompany astronomy’s silent movie. In Black Hole Blues and Other Songs from Outer Space, Janna Levin recounts the fascinating story of the obsessions, the aspirations, and the trials of the scientists who embarked on an arduous, fifty-year endeavor to capture these elusive waves. An experimental ambition that began as an amusing thought experiment, a mad idea, became the object of fixation for the original architects—Rai Weiss, Kip Thorne, and Ron Drever. Striving to make the ambition a reality, the original three gradually accumulated an international team of hundreds. As this book was written, two massive instruments of remarkably delicate sensitivity were brought to advanced capability. As the book draws to a close, five decades after the experimental ambition began, the team races to intercept a wisp of a sound with two colossal machines, hoping to succeed in time for the centenary of Einstein’s most radical idea. Janna Levin’s absorbing account of the surprises, disappointments, achievements, and risks in this unfolding story offers a portrait of modern science that is unlike anything we’ve seen before.


The Beginning and the End

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In this fascinating journey to the edge of science, Vidal takes on big philosophical questions: Does our universe have a beginning and an end or is it cycl ...

  • L'auteur : Clément Vidal
  • Editeur: Springer
  • ISBN: 3319050621
  • Genre: Science
  • Nombre de pages: 379
  • Langue: French/English
  • Vues: 559
  • Telecharger: 559
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Détails: In this fascinating journey to the edge of science, Vidal takes on big philosophical questions: Does our universe have a beginning and an end or is it cyclic? Are we alone in the universe? What is the role of intelligent life, if any, in cosmic evolution? Grounded in science and committed to philosophical rigor, this book presents an evolutionary worldview where the rise of intelligent life is not an accident, but may well be the key to unlocking the universe's deepest mysteries. Vidal shows how the fine-tuning controversy can be advanced with computer simulations. He also explores whether natural or artificial selection could hold on a cosmic scale. In perhaps his boldest hypothesis, he argues that signs of advanced extraterrestrial civilizations are already present in our astrophysical data. His conclusions invite us to see the meaning of life, evolution and intelligence from a novel cosmological framework that should stir debate for years to come.