How the Universe Got Its Spots: Diary of a Finite Time in a Finite Space PDF Book

How the Universe Got Its Spots: Diary of a Finite Time in a Finite Space PDF, ePub eBook Kindle

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Author : Janna Levin
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Book Information

Is the universe infinite or just really big? With this question, the gifted young cosmologist Janna Levin not only announces the central theme of her intriguing and controversial new book but establishes herself as one of the most direct and unorthodox voices in contemporary science. For even as she sets out to determine how big “really big” may be, Levin gives us an intimate look at the day-to-day life of a globe-trotting physicist, complete with jet lag and romantic disturbances.

Nimbly synthesizing geometry, topology, chaos and string theories, Levin shows how the pattern of hot and cold spots left over from the big bang may one day reveal the size and shape of the cosmos. She does so with such originality, lucidity—and even poetry—that How the Universe Got Its Spots becomes a thrilling and deeply personal communication between a scientist and the lay reader.

Book ID Asin: 1400032725
Book Title: How the Universe Got Its Spots: Diary of a Finite Time in a Finite Space
Book Author: Janna Levin
Book Format and Price:
Book Format Name: Kindle
Book Format Price: $9.99
Book Format Name: Hardcover
Book Format Price: $32.06
Book Format Name: Paperback
Book Format Price: $9.99
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Book Format Price: from$8.50
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Book Category: Books, Humor & Entertainment, Humor and unknown
Book Rating: 91 ratings

Book Product Detail

Publisher ‏ : ‎ Anchor; Reprint edition (August 12, 2003)
Language ‏ : ‎ English
Paperback ‏ : ‎ 240 pages
ISBN-10 ‏ : ‎ 1400032725
ISBN-13 ‏ : ‎ 978-1400032723
Item Weight ‏ : ‎ 8.8 ounces
Dimensions ‏ : ‎ 5.26 x 0.65 x 8 inches

Best Sellers Rank: #946,155 in Books (See Top 100 in Books)
- #958 in Cosmology (Books)
- #1,469 in Astrophysics & Space Science (Books)
- #1,780 in Astronomy (Books)

Customer Reviews:
91 ratings

Review

“[Levin] covers … fascinating ground….She writes passages that may make you either feel claustrophobic for only living in three visible dimensions or see the night sky in an entirely new way.” —Baltimore City Paper

“Science as it is lived…. [Levin’s] book is a gift to those people who want to think big but came to a screeching halt about two dozen pages into… A Brief History of Time.” —Discover

“Levin unpacks the technicalities with a skill honed from giving many lectures. . . . A book to be applauded.” — The Scotsman

“Lovely and utterly original. . . . Mixing lucid arguments with anecdotes and personal experiences, Levin makes it easy to understand seemingly complicated subjects such as transfinite arithmetic, naked singularities and compact spaces. . . . A marvelous diary that makes a reader long to meet the author. —American Scientist

From the Inside Flap

"Is the universe infinite or just really big? With this question, the gifted young cosmologist Janna Levin not only announces the central theme of her intriguing and controversial new book but establishes herself as one of the most direct and unorthodox voices in contemporary science. For even as she sets out to determine how big "really big" may be, Levin gives us an intimate look at the day-to-day life of a globe-trotting physicist, complete with jet lag and romantic disturbances.
Nimbly synthesizing geometry, topology, chaos and string theories, Levin shows how the pattern of hot and cold spots left over from the big bang may one day reveal the size and shape of the cosmos. She does so with such originality, lucidity--and even poetry--that How the Universe Got Its Spots becomes a thrilling and deeply personal communication between a scientist and the lay reader.

From the Back Cover

About the Author

JANNA LEVIN is a professor of physics and astronomy at Barnard College of Columbia University. She is also director of sciences at Pioneer Works, a center for arts and sciences in Brooklyn, and has contributed to an understanding of black holes, the cosmology of extra dimensions, and gravitational waves in the shape of spacetime. Her previous books include How the Universe Got Its Spots and a novel, A Madman Dreams of Turing Machines, which won the PEN/Bingham Prize. She was recently named a Guggenheim fellow.

Chapter 1

IS THE UNIVERSE INFINITE OR IS IT JUST REALLY BIG?

Some of the great mathematicians killed themselves. The lore is that their theories drove them mad, though I suspect they were just lonely, isolated by what they knew. Sometimes I feel the isolation. I'd like to describe what I can see from here, so you can look with me and ease the solitude, but I never feel like giving rousing speeches about billions of stars and the glory of the cosmos. When I can, I like to forget about math and grants and science and journals and research and heroes.

Boltzmann is the one I remember most and his student Ehrenfest. Over a century ago the Viennese-born mathematician Ludwig Boltzmann (1844-1906) invented statistical mechanics, a powerful description of atomic behavior based on probabilities. Opposition to his ideas was harsh and his moods were volatile. Despondent, fearing disintegration of his theories, he hanged himself in 1906. It wasn't his first suicide attempt, but it was his most successful. Paul Ehrenfest (1880-1933) killed himself nearly thirty years later. I looked at their photos today and searched their eyes for depression and desperation. I didn't see them written there.

My curiosity about the madness of some mathematicians is morbid but harmless. I wonder if alienation and brushes with insanity are occupational hazards. The first mathematician we remember encouraged seclusion. The mysterious Greek visionary Pythagoras (about 569 b.c.-about 475 b.c.) led a secretive, devout society fixated on numbers and triangles. His social order prospered in Italy millennia before labor would divide philosophy from science, mathematics from music. The Pythagoreans believed in the mystical meaning of numbers and developed a religion tending towards occult numerology. Their faith in the sanctity of numbers was shaken by their own perplexing mathematical discoveries. A Pythagorean who broke his vow of secrecy and exposed the enigma of numbers that the group had uncovered was drowned for his sins. Pythagoras killed himself, too. Persecution may have incited his suicide, from what little we know of a mostly lost history.

When I tell the stories of their suicide and mental illness, people always wonder if their fragility came from the nature of the knowledge-the knowledge of nature. I think rather that they went mad from rejection. Their mathematical obsessions were all-encompassing and yet ethereal. They needed their colleagues beyond needing their approval. To be spurned by their peers meant death of their ideas. They needed to encrypt the meaning in others' thoughts and be assured their ideas would be perpetuated.

I can only write about those we've recorded and celebrated, if posthumously. Some great geniuses will be forgotten because their work will be forgotten. A bunch of trees falling in a forest fearing they make no sound. Most of us feel the need to implant our ideas at the very least in others' memories so they don't expire when our own memories become inadequate. No one wants to be the tree falling in the forest. But we all risk the obscurity ushered by forgetfulness and indifference.

I admit I'm afraid sometimes that no one is listening. Many of our scientific publications, sometimes too formal or too obscure, are read by only a handful of people. I'm also guilty of a self-imposed separation. I know I've locked you out of my scientific life and it's where I spend most of my time. I know you don't want to be lectured with disciplined lessons on science. But I think you would want a sketch of the cosmos and our place in it. Do you want to know what I know? You're my last hope. I'm writing to you because I know you're curious but afraid to ask. Consider this a kind of diary from my social exile as a roaming scientist. An offering of little pieces of the little piece I have to offer.

I will make amends, start small, and answer a question you once asked me but I never answered. You asked me once: what's a universe? Or did you ask me: is a galaxy a universe? The great German philosopher and alleged obsessive Immanuel Kant (1724-1804) called them universes. All he could see of them were these smudges in the sky. I don't really know what he meant by calling them universes exactly, but it does conjure up an image of something vast and grand, and in spirit he was right. They are vast and grand, bright and brilliant, viciously crowded cities of stars. But universes they are not. They live in a universe, the same one as us. They go on galaxy after galaxy endlessly. Or do they? Is it endless? And here my troubles begin. This is my question. Is the universe infinite? And if the universe is finite, how can we make sense of a finite universe? When you asked me the question I thought I knew the answer: the universe is the whole thing. I'm only now beginning to realize the significance of the answer.

3 SEPTEMBER 1998

Warren keeps telling everyone we're going back to England, though, as you know, I never came from England. The decision is made. We're leaving California for England. Do I recount the move itself, the motivation, the decision? It doesn't matter why we moved, because the memory of why is paling with the wear. I do remember the yard sales on the steps of our place in San Francisco. All of my coveted stuff. My funny vinyl chairs and chrome tables, my wooden benches and chests of drawers. It's all gone. We sit out all day as the shade of the buildings is slowly invaded by the sun and we lean against the dirty steps with some reservation. Giant coffees come and go and we drink smoothies with bee pollen or super blue-green algae in homage to California as the neighborhood parades past and my pile of stuff shifts and shrinks and slowly disappears. We roll up the cash with excitement, though it is never very much.

When it gets too cold or too dark we pack up and go back inside. I'm trying to finish a technical paper and sort through my ideas on infinity. For a long time I believed the universe was infinite. Which is to say, I just never questioned this assumption that the universe was infinite. But if I had given the question more attention, maybe I would have realized sooner. The universe is the three-dimensional space we live in and the time we watch pass on our clocks. It is our north and south, our east and west, our up and down. Our past and future. As far as the eye can see there appears to be no bound to our three spatial dimensions and we have no expectation for an end to time. The universe is inhabited by giant clusters of galaxies, each galaxy a conglomerate of a billion or a trillion stars. The Milky Way, our galaxy, has an unfathomably dense core of millions of stars with beautiful arms, a skeleton of stars, spiraling out from this core. The earth lives out in the sparsely populated arms orbiting the sun, an ordinary star, with our planetary companions. Our humble solar system. Here we are. A small planet, an ordinary star, a huge cosmos. But we're alive and we're sentient. Pooling our efforts and passing our secrets from generation to generation, we've lifted ourselves off this blue and green water-soaked rock to throw our vision far beyond the limitations of our eyes.

The universe is full of galaxies and their stars. Probably, hopefully, there is other life out there and background light and maybe some ripples in space. There are bright objects and dark objects. Things we can see and things we can't. Things we know about and things we don't. All of it. This glut of ingredients could carry on in every direction forever. Never ending. Just when you think you've seen the last of them, there's another galaxy and beyond that one another infinite number of galaxies. No infinity has ever been observed in nature. Nor is infinity tolerated in a scientific theory-except we keep assuming the universe itself is infinite.

It wouldn't be so bad if Einstein hadn't taught us better. And here the ideas collide so I'll just pour them out unfiltered. Space is not just an abstract notion but a mutable, evolving field. It can begin and end, be born and die. Space is curved, it is a geometry, and our experience of gravity, the pull of the earth and our orbit around the sun, is just a free fall along the curves in space. From this huge insight people realized the universe must be expanding. The space between the galaxies is actually stretching even if the galaxies themselves were otherwise to stay put. The universe is growing, aging. And if it's expanding today, it must have been smaller once, in the sense that everything was once closer together, so close that everything was on top of each other, essentially in the same place, and before that it must not have been at all. The universe had a beginning. There was once nothing and now there is something. What sways me even more, if an ultimate theory of everything is found, a theory beyond Einstein's, then gravity and matter and energy are all ultimately different expressions of the same thing. We're all intrinsically of the same substance. The fabric of the universe is just a coherent weave from the same threads that make our bodies. How much more absurd it becomes to believe that the universe, space, and time could possibly be infinite when all of us are finite.

So this is what I'll tell you about from beginning to end. I've squeezed down all the facts into dense paragraphs, like the preliminary squeeze of an accordion. The subsequent filled notes will be sustained in later letters. You could say this is the story of the universe's topology, the branch of mathematics that governs finite spaces and an aspect of spacetime that Einstein overlooked. I don't know how this story will play itself out, but I'm curious to see how it goes. I'll try to tell you my reasons for believing the universe is finite, unpopular as they are in some scientific crowds, and why a few of us find ourselves at odds with the rest of our colleagues.

Chapter 2

INFINITY

14 SEPTEMBER 1998

I'm on the train back from London-gives me time to write, this time about Albert Einstein, hero worship, idolatry, and topology. Somebody told me he is reported to have said, "You know, I was no Einstein." He couldn't get a job. His dad wrote letters to famous scientists begging them to hire his unemployed son. They didn't. The Russian mathematician Hermann Minkowski (1864-1909) actually called him a "lazy dog." Can you imagine? He worked a day job as a patent clerk and thought about physics maybe all the rest of his waking hours. Or maybe the freedom from the criticism of his colleagues just gave his mind the room it needed to wander and let the truth hidden there reveal itself. In any case, in the early 1900s he developed his theory of relativity and published in 1905 a series of papers of such import and on such varied topics that when he received the Nobel prize it wasn't even for relativity.

Now we love him and his crazy hair and he's considered a genius. We try to make him the president of a small country. He's a hero. And he deserves to be. When I think of his vision, his revolution, it's an overwhelming testament to the human character, one of those rare moments of pride in my species. Nonetheless, we've been led astray by our faith in Einstein and his theory. General relativity, as I'll get to later, is a theory of geometry but it is an incomplete theory. It tells us how space is curved locally, but it is not able to distinguish geometries with different global properties. The global shape and connectedness of space is the realm of topology. A smooth sphere and a sphere with a hole in the middle have different topologies and general relativity is unable to discern one from the other. Because of this, people have assumed that the universe is infinite-seemed simpler than assuming space had handles and holes.

I liken this to assuming the earth is flat. I suppose it's simpler, but nonetheless wrong. If you think about it, it's not so much that Europeans thought the earth was flat. They knew there were hills and valleys, local curves. What they really feared was that it was unconnected. So much so that they imagined their countrymen sailing off its dangling edge. The resolution is even simpler. The earth is neither flat nor unconnected. It is finite and without edge (Figure 2.1).

It's easy to make fun of an ancient cosmology, but any child will conjure up their own tale about the sky and its quilt of lights. I had my own personal childhood cosmology. I fully expected that the earth was round, but I got a bit confused thinking that we lived inside the sphere. If I walked far enough from our backyard, I was certain I'd hit the arch of the blue sky. For some reason I thought our backyard was closer to the edge of the earth. In my childhood theory, there is a clear middle point on the surface of the earth. The real earth is so much more elegant. The earth is curved and smoothly connected. There is no edge, no middle. Each point is equivalent to every other.1

It is this and more that some cosmologists envisage for our entire universe: finite and edgeless, compact and connected. If we could tackle the cosmos in a spaceship, the way sailors crossed the globe, we might find ourselves back where we started.

Sometimes it's comforting, like defining a small and manageable neighborhood as your domain out of the vast urban sprawl. But today the image sits uncomfortably. A prison thirty billion light-years across.

Finally, the train's arrived. We're here. More soon.

15 SEPTEMBER 1998

Infinity is a demented concept. My mathematician collaborator scolded me for accusing infinity of being absurd. I think he'd be equally displeased with "demented," but these are my letters, my diary. I only voice his objection for the record.

Infinity is a limit and is not a proper number. No matter how big a number you think of, I can add 1 to it and make it that much bigger. The number of numbers is infinite. I could never recite the infinite numbers, since I only have a finite lifetime. But I can imagine it as a hypothetical possibility, as the inevitable limit of a never-ending sequence. The limit goes the other way, too, since I can consider the infinitely small, the infinitesimal. No matter how small you try to divide the number 1, I can divide it smaller still. While I could again imagine doing this forever, I can never do this in practice. But I can understand infinity abstractly and so accept it for what it is. Infinity has earned its own mathematical symbol: ƒ.

Book Review

Name: Heather Roecker
Rating: 4.0 out of 5 stars
Title: A bit overwhelming
Date: Reviewed in the United States on December 8, 2021
Review: This is a very good book.

I love space and astronomy and astrophysics. As a child I dreamed of being the first astronaut on Mars. As a teen I wanted to join the Air Force or Navy to better my odds of going to space.

Fate did not work out that way for me.

This book is a fascinating read. I love the interpersonal stories mixed in and the diary style of reading. I love her diagrams.

But for those of us not currently well versed in a lot of the terminology, this book could be a little overwhelming. When she dives into compact finite surfaces in 1-4 dimensions it definitely all went way over my head and I could not tell you what if anything I retained.

I would give it 5 stars if it was just a little more accessible to us who love the topic but don't have a history in the field.

Name: Annette Lamb
Rating: 5.0 out of 5 stars
Title: Amazing Read
Date: Reviewed in the United States on December 4, 2014
Review: After listening to an interview with Janna Levin on the NPR program Speaking of Faith, I became interested in reading her books. Levin is an astrophysicist and author interested in sharing her interest in topics from quantum mechanics to a Theory of Everything.

In the book How the Universe Got Its Spots, Levin uses a diary/letter style to explain contemporary theoretical physics in a way that is accessible to a layperson like me. She weaves the science through stories from everyday life. Her engaging writing style and excellent examples makes complex topics such as Einstein's theories easier to understand. It's interesting to learn how much we know and how much we still don't know about our universe. Is the universe finite or infinite? We really don't know.

One of the most amazing aspects of the book is her interest in cosmic archaeology which examines the patterns of hot spots left over from the big bang. I was also fascinated by her explanations of topology and geometry of the universe. I've always been interested in the idea of more than three dimensions, but it wasn't until I read this book that I began to understand how these other dimensions might work.

It's been nearly a decade since this book was written. I look forward to reading her newer, award-winning book titled A Madman Dreams of Turing Machines.

Here's one of my favorite quotes from the book:
“…there are no walls built in the human mind making some of us scientists and some of us artist. They are branches of the same tree, rooted in a common human essence. Maybe it’s our ability to step between the different disciplines, weaving strange loops all the while, that’s the core of our creativity.” (p. 193)

Name: Carl Sagan is my mentor
Rating: 5.0 out of 5 stars
Title: Great read
Date: Reviewed in the United States on November 24, 2021
Review: Great read
She opens you to a little of her personal life and lots of great science

Name: Jonathan Camp
Rating: 5.0 out of 5 stars
Title: A damn good read.
Date: Reviewed in the United States on October 20, 2020
Review: The mark of a good book is when you put it down and you realize that you're already half way through it, and you say to yourself, Damn, I'm already half way through it!
Janna not only invites us into her life, but also into her head. It's a nice place. I wish that I could stay there.

Name: Ryan Greiner
Rating: 4.0 out of 5 stars
Title: Nice easy to digest explanation of modern physics.
Date: Reviewed in the United States on November 14, 2020
Review: Nice easy to digest explanation of modern physics. The topography section is hard to follow however.

Name: Phil Clapham
Rating: 3.0 out of 5 stars
Title: A disappointment
Date: Reviewed in the United States on May 29, 2018
Review: I had hope for this book, since the topic is fascinating and I very much enjoyed her TV documentary about black holes. But the book was a disappointment: what began as a rather coherent overview of physics and the search for a single theory, mixed with some somewhat interesting life reflections, degenerated into confused personal rambling and endless pages about topology that was dry and uninteresting. The central question she addresses is whether the Universe is finite; but most of what she has to say consists of innumerable variations of why we don’t know. Overall, her treatment of these fascinating topics is just not that interesting, and while there are some original thoughts and good phrases here and there, they're lost in the rambling detail and many, often uninformative figures. Perhaps physicists find her lengthy stream of consciousness about topology and the curvature of the Universe compelling; I doubt most general readers would.

Name: Luke Nervig
Rating: 5.0 out of 5 stars
Title: Math, Science and the Life of Scientist
Date: Reviewed in the United States on June 23, 2016
Review: OK this book is written differently than most other physics or science books I've read. Its not all fact after fact and science science science. The book is written like a journal, with stories about the author's personal life mixed in with her science exploits. So be prepared for that! But the writing is good and the science and math is fun to learn about. Honestly, I had to get about a third of the way through the book before I fully accepted the fact that this book is different. But I didn't want to put it down, kept me up late at night many times finishing the read. Thanks Janna Levin!

Name: S. Houg
Rating: 4.0 out of 5 stars
Title: Difficult and Fascinating
Date: Reviewed in the United States on August 21, 2018
Review: Not being either a mathematician or a physicist, this was a heavy challenge for me, but the author does such a good job of alleviating these parts with her human interest story, as well as with charts and graphics, that I was very glad I persevered. Very provocative as to origins.

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