Black Holes and Baby Universes and Other Essays

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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 ...

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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.

The bestselling follow-up to Hawking's phenomenal million-copy hardcover bestseller A Brief History of Time is now available in trade paperback. These 14 pieces reveal Hawking variously as the scientist, the man, the concerned world citizen, and--always--the rigorous and imaginative thinker.

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Editorial Reviews

From the Publisher
“[Hawking] sprinkles his explanations with a wry sense of humor and a keen awareness that the sciences today delve not only into the far reaches of the cosmos, but into the inner philosophical world as well.”—New York Times Book Review

“Succinct, illuminating, and—considering the inherently baffling nature of contemporary cosmology—remarkably easy to read.”—The Wall Street Journal

“A second chance at enlightenment . . . [Hawking] deftly unravels . . . complex matters in simple, lay language. . . . Very readable.”—San Francisco Chronicle

Publishers Weekly - Publisher's Weekly
British theoretical physicist Hawking ( A Brief History of Time ) here delivers a potpourri of lucid, succinct scientific articles and lectures and short autobiographical sketches. He speculates that spaceships or objects that fall into a black hole may go off into ``a little baby universe of their own,'' a small, self-contained world that branches off from our region of space-time. These baby universes, he adds, exist in imaginary time, ``at right angles to real time, in which the universe has no beginning or end.'' In other pieces Hawking assesses physicists' search for a complete, unified ``theory of everything''; argues in favor of the tenet that people have free will; calls for large cuts in armaments; and describes his triumph over Lou Gehrig's disease, which has confined him to a wheelchair and forced him to communicate via a personal computer and speech synthesizer. In a concluding interview reprinted from the BBC, Hawking discusses his love of music and the role of intuition in his work. (Sept.)
Library Journal
Hawking is quite probably the most admired and recognizable figure in science today. His A Brief History of Time ( LJ 4/15/88) was a surprise best seller that stimulated a public fascination with this man who, although stricken with a debilitating neurological disease, is widely regarded as the most brilliant theoretical physicist since Einstein. This new collection of essays and lectures will no doubt attract a large readership, but it is somewhat unbalanced. The biographical pieces are digressive and not particularly enlightening. Most pointless is the concluding piece, an interview in which Hawking expounds upon the eight records he would want if he were shipwrecked on a desert island. The scientific essays are much stronger and offer insight into a variety of cutting-edge issues in contemporary physics, though much of what is presented can be found in Brief History . Readers interested in Hawking's life are better advised to read John Gribbin and Michael White's Stephen Hawking: A Life in Science ( LJ 5/1/92). Previewed in Prepub Alert, LJ 6/15/93.-- Gregg Sapp, Montana State Univ. Libs., Bozeman
The superstar science popularizer offers a collection of 14 essays, written 1976-92, and the text of a BBC interview. He discusses his own life, the philosophy of science, the excitement he finds in science, and other topics. No bibliography. Annotation c. Book News, Inc., Portland, OR (
Kirkus Reviews
Superstar physicist Hawking—whose A Brief History of Time (1988) is ensconsed in the Guinness Book of Records for having had the longest bestseller-run in English-language history—returns with 11 essays and one interview, covering matters autobiographical, scientific, and philosophical. The autobiographical pieces share a sketchy, conversational tone and drop a few tasty nuggets: Hawking didn't learn to read until he was eight and proved to be (in the Einstein tradition) a mediocre student; if dropped on a desert island, he would listen to Mozart's Requiem and read Middlemarch. But even so, these pieces keep Hawking's inner life strictly under wraps. Most of the other essays, which tend to repeat themselves, cover the author's major scientific insights: that the universe is "neither created nor destroyed"; that space/time began 15 billion years ago and is finite but boundless, like the surface of a globe. Hawking cites as his "most surprising discovery" the realization that black holes are not self-enclosed but leak particles and radiation: This leads directly to his most recent enthusiasm, "baby universes," generated by black holes, which branch off from our own universe and sometimes return to it. Sometimes the going is thick ("the N=8 theory has twenty-eight spin-1 particles"), but most of Hawking's arguments will be clear to educated laypeople. His weak suit is philosophy, and, indeed, he includes a mild-mannered attack on professional philosophers, many of whom find his discussions of the big questions—what is creation? does God exist?—to be, as he puts it, "naive and simple-minded." No matter: Hawking will be remembered for his physics, not hismetaphysics. Not much new, but people feel smarter just by buying a Hawking book. This will sell.
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Product Details

  • ISBN-13: 9780553374117
  • Publisher: Random House Publishing Group
  • Publication date: 9/28/1994
  • Edition description: Reprint
  • Edition number: 1
  • Pages: 192
  • Sales rank: 121,215
  • Product dimensions: 5.99 (w) x 9.01 (h) x 0.48 (d)

Meet the Author

Stephen Hawking

Stephen Hawking is Lucasian Professor of Mathematics at the University of Cambridge; his other books for the general reader include A Brief History of Time, A Briefer History of Time and The Universe in a Nutshell.


In the universe as a whole, the nature of black holes may be one of the most puzzling mysteries. No less puzzling, in the slightly smaller universe of book publishing, is the astounding popular success of Stephen Hawking's 1988 book on the matter, or anti-matter, as it were: A Brief History of Time: From the Big Bang to Black Holes.

Clocking in at just over 200 pages, it was, indeed, brief, but it was hardly the easy read its marketers promised. Nor did it stray much beyond the tone of a scholarly lecture, though at times it did take quick autobiographical peeks into Hawking's personal life. Still, it is just the author's persona that may have been the selling point prompting more than 10 million people worldwide to pick up a copy -- and to have it translated into more than 40 languages in the 10 years since its release.

For Stephen Hawking is an instantly recognizable public figure -- even for those who haven't delved into his so far unprovable theories about black holes. Stricken by amyotrophic lateral sclerosis (ALS) -- or Lou Gehrig's disease, as it is called in the States -- while he was working toward his doctorate at Cambridge University, this Englishman is known for the keen wit and intellect that reside within his severely disabled body. He uses a motorized wheelchair to get around and a voice synthesizer to communicate -- a development, he complains, that has given him an American accent. He has guest-starred, in cartoon form, on an episode of The Simpsons and has appeared in the flesh on Star Trek: The Next Generation, using the benefits of time travel to play poker with Albert Einstein and Isaac Newton. (He has said he doesn't believe in the theory himself, noting that the most powerful evidence of its impossibility is the present-day dearth of time-traveling tourists from the future.)

The son of a research biologist, Hawking resisted familial urging that he major in biology and instead studied physics and chemistry -- as a nod to his father -- when he went to Oxford University as a 17-year-old. In academic writing, Hawking had an extensive career pre-History, starting with The Large Scale Structure of Space-Time, coauthored with G.F.R. Ellis in 1973. But in the late 1980s, faced with the expenses incurred by his illness, he took up Bantam Books' offer to explain the mysteries of the universe to the lay public.

"This is one of the best books for laymen on this subject that has appeared in recent years," The Christian Science Monitor wrote in 1988. "Hawking is one of the greatest theoretical cosmologists of our time. He is greater, by consensus among his colleagues, than other expert authors who have written good popular books on the subject recently. And he is greater, by far, than the ‘experts' who have ‘explained' quantum physics and cosmology in terms that support a religious agenda." And The New York Times in April 1988 said, "Through his cerebral journeys, Mr. Hawking is bravely taking some of the first, though tentative, steps toward quantizing the early universe, and he offers us a provocative glimpse of the work in progress."

Since then, A Brief History of Time has been republished in an illustrated edition (1996) and as an updated and expanded 10th anniversary edition (1998). In Black Holes and Baby Universes and Other Essays, a collection of 13 essays and the transcript of an extended interview with the BBC, Hawking turned more autobiographical, mixing stories about his studies in college and the beginning of his awareness that he had ALS with thoughts on how black holes can spawn baby universes and on the scientific community's efforts to create a unified theory that will explain everything in the universe. And in The Universe in a Nutshell, his sequel to A Brief History of Time, Hawking takes the same approach as he did in his first bestseller, explaining to the lay reader such ideas as the superstring theory, supergravity, time travel, and quantum theory.

A common current in Hawking's writing -- aside from his grasp of the complexities of the universe -- is a sharp wit. In one of the rare personal reflections in A Brief History of Time, he said he began thinking about black holes in the early 1970s in the evenings as he was getting ready for bed: "My disability makes this rather a slow process, so I had plenty of time." In life, he has a reputation for quickly turning his wheelchair away of a conversation that displeases him, even running his wheels over the toes of the offending conversant.

Even questions about his muse are likely to draw an answer tinged with pointed humor. When Time asked Hawking why he decided to add explaining the universe to a schedule already taxed by his scholarly writing and lecture tours, he answered, "I have to pay for my nurses."

Good To Know

Hawking worked 1,000 hours in his three years at Oxford, roughly an hour a day. "I'm not proud of this lack of work," he said in Stephen Hawking's a Brief History of Time: A Reader's Companion. "I'm just describing my attitude at the time, which I shared with most of my fellow students: an attitude of complete boredom and feeling that nothing was worth making an effort for."

Despite his science degrees, Hawking has no formal training in math and has said he had to pick up what he knows as he went along.

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    1. Hometown:
      Cambridge, England
    1. Date of Birth:
      January 8, 1942
    2. Place of Birth:
      Oxford, England

Read an Excerpt



I WAS BORN ON January 8, 1942, exactly three hundred years after the death of Galileo. However, I estimate that about two hundred thousand other babies were also born that day. I don’t know whether any of them were later interested in astronomy. I was born in Oxford, even though my parents were living in London. This was because Oxford was a good place to be born during World War II: The Germans had an agreement that they would not bomb Oxford and Cambridge, in return for the British not bombing Heidelberg and Göttingen. It is a pity that this civilized sort of arrangement couldn’t have been extended to more cities.

My father came from Yorkshire. His grandfather, my great-grandfather, had been a wealthy farmer. He had bought too many farms and had gone bankrupt in the agricultural depression at the beginning of this century. This left my father’s parents badly off, but they managed to send him to Oxford, where he studied medicine. He then went into research in tropical medicine. He went out to East Africa in 1937. When the war began, he made an overland journey across Africa to get a ship back to England, where he volunteered for military service. He was told, however, that he was more valuable in medical research.

My mother was born in Glasgow, Scotland, the second child of seven of a family doctor. The family moved south to Devon where she was twelve. Like my father’s family, hers was not well off. Nevertheless, they managed to send my mother to Oxford. After Oxford, she had various jobs, including that of inspector of taxes, which she did not like. She gave that up to become a secretary. That was how she met my father in the early years of the war.

We lived in Highgate, north London. My sister Mary was born eighteen months after me. I’m told I did not welcome her arrival. All through our childhood there was a certain tension between us, fed by the narrow difference in our ages. In our adult life, however, this tension has disappeared, as we have gone different ways. She became a doctor, which pleased my father. My younger sister, Philippa, was born when I was nearly five and was able to understand what was happening. I can remember looking forward to her arrival so that there would be three of us to play games. She was a very intense and perceptive child. I always respected her judgment and opinions. My brother Edward came much later, when I was fourteen, so he hardly entered my childhood at all. He was very different from the other three children, being completely nonacademic and nonintellectual. It was probably good for us. He was a rather difficult child, but one couldn’t help liking him.

My earliest memory is of standing in the nursery of Byron House in Highgate and crying my head off. All around me, children were playing with what seemed like wonderful toys. I wanted to join in, but I was only two and a half, and this was the first time I had been left with people I didn’t know. I think my parents were rather surprised at my reaction, because I was their first child and they had been following child development textbooks that said that children ought to start making social relationships at two. But they took me away after that awful morning and didn’t send me back to Byron House for another year and a half.

At that time, during and just after the war, Highgate was an area in which a number of scientific and academic people lived. In another country they would have been called intellectuals, but the English have never admitted to having any intellectuals. All these parents sent their children to Byron House school, which was a very progressive school for those times. I remember complaining to my parents that they weren’t teaching me anything. They didn’t believe in what was then the accepted way of drilling things into you. Instead, you were supposed to learn to read without realizing you were being taught. In the end, I did learn to read, but not until the fairly late age of eight. My sister Philippa was taught to read by more conventional methods and could read by the age of four. But then, she was definitely brighter than me.

We lived in a tall, narrow Victorian house, which my parents had bought very cheaply during the war, when everyone thought London was going to be bombed flat. In fact, a V-2 rocket landed a few houses away from ours. I was away with my mother and sister at the time, but my father was in the house. Fortunately, he was not hurt, and the house was not badly damaged. But for years there was a large bomb site down the road, on which I used to play with my friend Howard, who lived three doors the other way. Howard was a revelation to me because his parents weren’t intellectuals like the parents of all the other children I knew. He went to the council school, not Byron House, and he knew about football and boxing, sports that my parents wouldn’t have dreamed of following.

Another early memory was getting my first train set. Toys were not manufactured during the war, at least not for the home market. But I had a passionate interest in model trains. My father tried making me a wooden train, but that didn’t satisfy me, as I wanted something that worked. So my father got a secondhand clockwork train, repaired it with a soldering iron, and gave it to me for Christmas when I was nearly three. The train didn’t work very well. But my father went to America just after the war, and when he came back on the Queen Mary, he brought my mother some nylons, which were not obtainable in Britain at that time. He brought my sister Mary a doll that closed its eyes when you laid it down. And he brought me an American train, complete with a cowcatcher and a figure-eight track. I can still remember my excitement as I opened the box.

Clockwork trains were all very well, but what I really wanted were electric trains. I used to spend hours watching a model railway club layout in Crouch End, near Highgate. I dreamed about electric trains. Finally, when both my parents were away somewhere, I took the opportunity to draw out of the Post Office bank all the very modest amount of money that people had given me on special occasions like my christening. I used the money to buy an electric train set, but frustratingly enough, it didn’t work very well. Nowadays, we know about consumer rights. I should have taken the set back and demanded that the shop or manufacturer replace it, but in those days the attitude was that it was a privilege to buy something, and it was just your bad luck if it turned out to be faulty. So I paid for the electric motor of the engine to be serviced, but it never worked very well.

Later on, in my teens, I built model airplanes and boats. I was never very good with my hands, but I did this with my school friend John McClenahan, who was much better and whose father had a workshop in their house. My aim was always to build working models that I could control. I didn’t care what they looked like. I think it was the same drive that led me to invent a series of very complicated games with another school friend, Roger Ferneyhough. There was a manufacturing game, complete with factories in which units of different colors were made, roads and railways on which they were carried, and a stock market. There was a war game, played on a board of four thousand squares, and even a feudal game, in which each player was a whole dynasty, with a family tree. I think these games, as well as the trains, boats, and airplanes, came from an urge to know how things worked and to control them. Since I began my Ph.D., this need has been met by my research into cosmology. If you understand how the universe operates, you control it in a way.

In 1950 my father’s place of work moved from Hampstead, near Highgate, to the newly constructed National Institute for Medical Research in Mill Hill, on the northern edge of London. Rather than travel out from Highgate, it seemed more sensible to move out of London and travel in to town. My parents therefore bought a house in the cathedral city of St. Albans, about ten miles north of Mill Hill and twenty miles north of London. It was a large Victorian house of some elegance and character. My parents were not very well off when they bought it, and they had to have quite a lot of work done on it before we could move in. Thereafter my father, like the Yorkshireman he was, refused to pay for any further repairs. Instead, he did his best to keep it going and keep it painted, but it was a big house and he was not very skilled in such matters. The house was solidly built, however, so it withstood this neglect. My parents sold it in 1985, when my father was very ill (he died in 1986). I saw it recently. It didn’t seem that any more work had been done on it, but it still looked much the same.

The house had been designed for a family with servants, and in the pantry there was an indicator board that showed which room the bell had been rung from. Of course we didn’t have servants, but my first bedroom was a little L-shaped room that must have been a maid’s room. I asked for it at the suggestion of my cousin Sarah, who was slightly older than me and whom I greatly admired. She said that we could have great fun there. One of the attractions of the room was that one could climb from the window out onto the roof of the bicycle shed and thence to the ground.

Sarah was the daughter of my mother’s eldest sister, Janet, who had trained as a doctor and was married to a psychoanalyst. They lived in a rather similar house in Harpenden, a village five miles further north. They were one of the reasons we moved to St. Albans. It was a great bonus to me to be near Sarah, and I frequently went on the bus to Harpenden. St. Albans itself stood next to the remains of the ancient Roman city of Verulamium, which had been the most important Roman settlement in Britain after London. In the Middle Ages it had had the richest monastery in Britain. It was built around the shrine of Saint Alban, a Roman centurion who is said to be the first person in Britain to be executed for the Christian faith. All that remained of the abbey was a very large and rather ugly abbey church and the old abbey gateway building, which was now part of St. Albans school, where I later went.

St. Albans was a somewhat stodgy and conservative place compared with Highgate or Harpenden. My parents made hardly any friends there. In part this was their own fault, as they were naturally rather solitary, particularly my father. But it also reflected a different kind of population; certainly, none of the parents of my school friends in St. Albans could be described as intellectuals.


*This essay and the one that follows are based on a talk I gave to the International Motor Neurone Disease Society in Zurich in September 1987 and has been combined with material written in August 1991.

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Table of Contents

1 Childhood 1
2 Oxford and Cambridge 13
3 My Experience with ALS 21
4 Public Attitudes Toward Science 27
5 A Brief History of A Brief History 33
6 My Position 41
7 Is the End in Sight for Theoretical Physics? 49
8 Einstein's Dream 69
9 The Origin of the Universe 85
10 The Quantum Mechanics of Black Holes 101
11 Black Holes and Baby Universes 115
12 Is Everything Determined? 127
13 The Future of the Universe 141
14 Desert Island Discs: An Interview 157
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Customer Reviews

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( 8 )
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Sort by: Showing all of 8 Customer Reviews
  • Anonymous

    Posted March 16, 2012

    Almost done...76%

    I am almost done with this book & i love it(so far).i think it will turn out very good & i am through 76% of the book. I Iove stephen hawking!!!!!!!!!!!! I am reading this book on my NOOK& have to keep taking notes on words that i do not know what they of my notes is:find out what "primordial"means.

    2 out of 4 people found this review helpful.

    Was this review helpful? Yes  No   Report this review
  • Anonymous

    Posted December 6, 2011

    black holes and other baby universes

    Wonderful, very factual. I would recomend this to anyone with a yearning to learn about science.

    2 out of 3 people found this review helpful.

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  • Anonymous

    Posted December 3, 2012

    to: l

    I agree we eventually will i am very intrested in becomimg a theoretical physist. We should send all the jocks into a black hole and watch them pass the point of no return. Mwah ha ha!

    1 out of 4 people found this review helpful.

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  • Anonymous

    Posted August 29, 2012


    I am a geek geeks shall kill all jocks

    1 out of 5 people found this review helpful.

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  • Anonymous

    Posted March 21, 2012

    I loved it

    If you are interested in the universe and also interested in learning more about Stephen Hawking buy this book. I loved it!!!

    1 out of 2 people found this review helpful.

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  • Anonymous

    Posted December 27, 2011


    Were fury

    0 out of 7 people found this review helpful.

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  • Anonymous

    Posted April 26, 2011

    No text was provided for this review.

  • Anonymous

    Posted April 5, 2014

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