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A new generation of observatories, now being completed worldwide, will give astronomers not just a new window on the cosmos but a whole new sense with which to explore and experience the heavens above us. Instead of collecting light waves or radio waves, these novel instruments will allow astronomers to at last place their hands upon the fabric of space-time and feel the very rhythms of the universe.
These vibrations in space-time-or gravity waves-are the last prediction of Einstein's general theory of relativity yet to be observed directly. They are his unfinished symphony, waiting nearly a century to be heard. When they finally reveal themselves to astronomers, we will for the first time be able to hear the cymbal crashes from exploding stars, tune in to the periodic drumbeats from swiftly rotating pulsars, listen to the extended chirps from the merger of two black holes, and eavesdrop on the remnant echoes from the mighty jolt of the Big Bang itself.
When Einstein introduced general relativity in 1915, it was hailed as a momentous conceptual achievement. Einstein attained celebrity status. But, once scientists verified what they could of the theory, given the scant experiments available at the time, general relativity became "largely a theoretical curiosity," writes Marcia Bartusiak.
Now, after decades of technological advancement, general relativity is being tested with unprecedented accuracy. It even affects our everyday lives. Satellites used by both travelers and soldiers to peg their positions require constant corrections of Einsteinian precision. Meanwhile, the first gravity-wave "telescopes"-including the LIGO facility-are about to come alive.
In Einstein's Unfinished Symphony, Bartusiak captures the excitement as two gravity-wave observatories in Louisiana and Washington State, as well as others in Italy, Germany, and Japan, approach operation and physicists gear up to begin their work to register the long-predicted quakes in space-time.
With each chapter, Bartusiak continues her musical metaphor in tracing the story of general relativity, from the time "Maestro" Einstein enters physics, through the "Starlight Waltz" of neutron stars twisting space-time around themselves, to the "Dissonant Chords" of controversy as physicists fight to get their radically new observatories approved, through the "Finale" as a worldwide endeavor in gravity-wave astronomy is launched.
- Sales Rank: #458193 in Books
- Published on: 2000-12-15
- Original language: English
- Number of items: 1
- Dimensions: 1.01" h x 6.28" w x 9.33" l,
- Binding: Hardcover
- 264 pages
From Publishers Weekly
Einstein is hot this year; not only has his brain traveled cross-country but his personal and scientific lives are being explored in depth. Gravity waves aren't as well-known as the more familiar theory of E=mc2 (which is getting its own book this season, see Forecasts, Sept. 18), but cross-promotion of related titles will boost sales of this graceful little book about the mysterious subject. Those waves are the only form of radiation predicted by Einstein's theory of relativity that remain undetected (a gravity wave is created by the movement of an object; it is not the same as gravitational attraction). Unlike a wave of light, which moves through a medium, space-time, a gravity wave is similar to a wave in water, which is movement of the mediumDhowever, a wave on a pond will go around you as you sit in a fishing boat, whereas a gravity wave will go through an astronaut in a spaceship as easily as it will pass through a star. Scientists predict the only gravity waves we will be able to detect at first are those from such galaxy-shaking events as supernova explosions or the collisions of binary neutron stars, but once gravity waves are graphed and analyzed, we should be able to confirm the existence of black holes, explore time back to the threshold of the big bang, and accurately map the dimensions of the universe. Today kilometers-long interferometer detectors are going online in Washington and Louisiana to detect gravity waves. Tomorrow scientists hope to have a space-based observatory tagging along behind Earth as it orbits the sun. Bartusiak (Thursday's Universe) has been writing about gravity waves for more than a decade, and her familiarity with the search and the scientists involved results in a thorough, engrossing and valuable chronicle. B&w illus. 25,000 first printing; author tour; Library of Science and Astronomy Book Club selections. (Oct.)
Copyright 2000 Reed Business Information, Inc.
Review
"Bartusiak excitingly relates the hunt for proof of the gravity waves predicted by Einstein." -- Discover, November 2000
"Bartusiak's lively style [has] the reader rooting for scientists...who wait eagerly...for the universe to play them a tune." -- Astronomy Magazine
"Bartusiak...gives a sense of the ebb and flow of confidence among scientists trying to hunt down gravitational waves." -- Robert Matthews, New Scientist
"Einstein predicted that gravitational waves exist...If found, the waves will be audible: Scientists could listen to a collapsing star." -- U.S. News & World Report, Nov. 6, 2000, TOP PICK OF THE WEEK, 2000
"When a gravity wave is first detected... reader of this book will feel like a participant in the great event." -- David Goodstein, The New York Times Book Review, NOTABLE BOOK FOR 2000
Best Sci-Tech Books of 2000 -- Library Journal
From the Publisher
Marcia Bartusiak won the 2001 American Institute of Physics Science Writing Award for her book, Einstein's Unfinished Symphony
Most helpful customer reviews
3 of 3 people found the following review helpful.
Great review of the history of gravitational wave physics
By Jarrod D. Knudson
The book takes you on a journey through the history of physics since Einstein published his theories of relativity. Sufficient background information is provided without the mathematical details that might handicap those of us in other fields. Ms. Bartusiak does a fine job of explaining the many intricacies of relativity and gravitational wave physics in a clear and concise manner (for the physics layperson).
A detailed account of the testing of Einstein's theories during his lifetime and over the decades since he left us is provided. Einstein's insight was phenomenal (at least as far as I am concerned, being a non-physicist/engineer). I'm still amazed by the leap that he was able to take, thus changing physics forever. Not since Newton has anyone changed the face of our perception of the physical world around us (the universe's many objects and the evolution of the concept of space-time).
The majority of the text is devoted to the decades of research and development over gravitational wave detection. The concerted effort in the field is actually quite phenomenal. Since gravitational waves have never officially been detected, one might surmise that the book can't be very exciting. On the contrary, the history of the development of the technology for modern day test detection systems is very fascinating. I learned a great deal about the basic premises of relativity physics without having to take three or four courses in calculus. I was actually quite thrilled to find a book so easy to follow.
I will be rejoycing for Einstein (and all of humankind) when the headlines read, "for the first time, ripples through space-time have been recorded across the globe". What a glorious day for science. I can't wait!!!
5 of 5 people found the following review helpful.
An important preview of things to come
By Robert Adler
This book provides a rare opportunity for non-scientists to understand an important scientific advance before it happens.
Bartusiak provides readers with a thorough history of the decades of theorizing, organizing, and development that have led to the current generation of gravitational-wave observatories eagerly awaiting the first detection of the space-distorting pulses predicted by Einstein's theory of relativity nearly a century ago.
From my point of view, the book presents a bit more of the history and politics of gravitational-wave research, and a bit less of the science, than I might like. Still, Bartusiak tells a very important story in great detail. She clearly did her homework; the book is full of the kind of details that come only from visiting sites and interviewing key players face-to-face.
I thought that the most important point Bartusiak made did not come until at least two-thirds of the way through the book. She finally made it clear that the key problem in detecting gravitational waves rippling through spacetime is isolating the detector from every other influence, insulating and quieting it to the point that a change in length no larger than a fraction of the diameter of an atom can be detected. That's why, when gravitational waves are finally detected, it will be a great technical triumph as well as a vindication of Einstein's theory and a powerful new window on the universe.
On the whole I'd describe Bartusiak's writing as clear and well organized, but not inspiring. However, she did come up with one delightful metaphor. In describing the impending collision of two black holes, one of the predicted sources of detectable ripples in spacetime, she wrote, "Picture two black holes slowly circling each other, like a pair of sumo wrestlers warily checking each other out in the ring." I would have liked the book even more if Bartusiak had provided more imaginative writing like that, and more science as well.
Still, if you want to know what the first detection of gravitational waves will mean, and the enormous amount of effort that has gone into this impending discovery, _Einstein's Unfinished Symphony_ is well worth reading.
Robert Adler, author of _Science Firsts: From the Creation of Science to the Science of Creation_ (Wiley & Sons, 2002); and _Medical Firsts: From Hippocrates to the Human Genome_ (Wiley & Sons, 2004).
0 of 0 people found the following review helpful.
A Tribute to Joseph Weber, the LIGO project and Much More
By Tatsuo Tabata
In this book Marcia Bartusiak, an excellent science journalist, writes about scientists' endeavors to detect gravitational waves coming from deep space. The existence of gravity waves was predicted by Albert Einstein's theory of general relativity, and they are considered to have the frequency falling into the audio range, but no one has ever listened to them. Thus the author elegantly entitled this book "Einstein's Unfinished Symphony." Each chapter also has the title related to music. For example, the chapter about the discovery of the Hulse-Taylor binary pulsar, indirect evidence for gravity waves, is cogently entitled "Pas De Deux."
Bartusiak's sentences are also rhythmic like music, especially in the earliest chapters, so that the reader comfortably learns about Einstein's discovery of the origin of gravity and Renaissance in relativity made theoretically by John Archibald Wheeler and experimentally by Robert Dicke. Wheeler is cited to have explained general relativity in one clear sentence, "Mass tells space-time how to curve, and space-time tells mass how to move."
The pioneer of experimental work directly to catch gravity waves was Joseph Weber. He published his first results in 1969, claiming evidence for observation of gravity waves based on coincident signals from two bar detectors. Unfortunately, by the middle of 1970s nearly everyone came to agree that Weber was mistaken. Bartusiak writes that Weber had however created a momentum that could not be stopped. Weber died on 30 September 2000, just a few months before the publication of this book. Thus the book partially happened to become one of the earliest tributes to Weber. His first bar detector is now shown in the Smithsonian Institution in Washington, D. C.
Then comes the central story of this book, the construction, improvements and prospects of the Laser Interferometer Gravitational-wave Observatory (LIGO). LIGO is a gigantic instrument system placed in Livingston, Louisiana, and Hanford, Washington. Its construction started as a collaborative project, involving dozens of scientists and the cost of more than $370 million. Among those scientists, Rainer Weiss is considered to be the founding father of the effort. His career began with a determination to get rid of the noises in a hi-fi system, only to transfer that interest ironically or rather wonderfully to reducing the noises that could mask a gravity wave.
Each piece of LIGO's detector includes a marvel of engineering. LIGO's "classy" physics and the virgin territory of possible gravity wave astronomy are gathering young physicists from around the world. Potential sources of gravity waves cataloged so far by Kip Thorne's Caltech team and other theoretical groups around the world are many and varied from black hole collisions to neutron-star mountains. The author tells us all the details of these in a quite understandable manner. She also describes gravitational research in countries other than United States and projects by the use of spacecrafts.
The book is well balanced between theory and experiment, between science and sociology, and between anecdotes and stories of serious pursuit. As for anecdotes, there is one about the fact that the term "black hole" caused a problem for a while in France. Read the book for the reason. This is a masterpiece of nonfiction, and will absorb the mind of both a scientist and a layperson.
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