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Dark Matter
What if only a small fraction of the stars in our galaxy are visible to us, because the vast majority of star systems are teeming with aliens who wish to remain unseen? Marc Zemin, a brilliant student of astrophysics, is the first human to ever stumble upon this startling secret, when his experiments with wormhole travel cause aliens to land on Earth and whisk him away into space. The aliens want his help in fighting a colossal interstellar war that is rapidly spiraling out of control. But as he struggles to survive from battle to battle across the farthest reaches of the galaxy, he begins to uncover a horrifying conspiracy at play, striving to keep the different sides in continuous conflict with each other. A desperate race against time ensues, as he and a handful of newfound alien friends try to stop the war and confront this mysterious, powerful force bent on destroying all life in the galaxy. "A sci-fi debut that shows great potential." - Kirkus Discoveries.
Price: $4.76
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Black Holes, Wormholes & Time Machines
Do you know: · What might happen if you fall into a black hole? · That the Universe does not have an edge? · That the reason it gets dark at night is proof of the Big Bang? · That cosmic particles time-travel through the atmosphere defying death? · That our past, present and future might all coexist "out there"? With two remarkable ideas, Albert Einstein revolutionized our view of the Universe. His first was that nothing can travel faster than light-the ultimate speed limit. This simple fact leads to the unavoidable conclusion that space and time must be linked together forever as Spacetime. With his second monumental insight, Einstein showed how Spacetime is warped and stretched by the gravity of all objects in the Universe and even punctured by black holes. But such possible twisting of Spacetime allowed a magic not even Einstein could have imagined: time-travel. Theoretical physicist Jim Al-Khalili finally lays science fiction to rest as he opens up Einstein's Universe. Leading us gently and light-heartedly through the dizzying world of our space and time, he even gives us the recipe for a time machine, capable of taking us Back to the Future, to Alice's Wonderland, or on a trip with the Terminator..
Price: $24.86
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The Unknown Universe: The Origin of the Universe, Quantum Gravity, Wormholes, and Other Things Science Still Can't Explain
For the past 10 years, physicists have been banging their heads against the wall, trying to understand one of the greatest new mysteries of the cosmos: Why is the universe pulling itself apart at an ever-increasing rate? Is this a mysterious new force--dark energy--or must we alter our most fundamental theories of time and space? For 30 years, we have been struggling to understand the nature of dark matter--the mysterious invisible matter that outweighs "normal" matter 10 to one and fills the "empty" spaces in our galaxies. For 50 years, we have grappled with the seditious theory of gravity, which has failed to fall in line with all other known forces. But the biggest mystery of all time--one that dates back to man's earliest writings--is our universe, and physicists are the detectives trying to piece together disparate clues that continually turn our view of the cosmos upside down. The Unknown Universe describes how physicists view the creation of our universe, when space and time itself came into being, and how stars formed and exploded, seeding the universe with new stars and galaxies, including our own solar system. This book also explores some of science's newest theories and their implications, such as string theory, which suggests a seemingly bizarre world of 10 dimensions yet may explain quantum gravity. It also describes the biggest conundrums physicists are grappling with today. From dark matter to cosmic rays, from black holes to wormholes, Dr. Hammond explains how these vexatious riddles arose. Filled with personal insights from his own research and historical interludes, The Unknown Universe drags some of our darkest enigmas into the light of day. This is an essential and fascinating reference work for professionals and amateurs alike..
Price: $10.75
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Gravity, Black Holes, and the Very Early Universe: An Introduction to General Relativity and Cosmology
Chow introduces the mathematical methods essential to understanding and applying general relativity--tensor calculus, some differential geometry, etc.--but leaves to more advanced references derivations that a beginning student would likely find overly long and tedious. The book employs standard tensor analysis--which requires only basic calculus for its understanding--and resists the temptation to adopt more powerful mathematical formalisms (like exterior calculus and differential forms) used by researchers in the field. In this way, the student can concentrate on learning physics--and not be distracted by the complexities of unfamiliar mathematical methods. The book also offers comprehensive discussion of the physics of black holes. The author hits just the right level of presentation: sufficient mathematical detail to demonstrate or make plausible the physical attributes of black holes - in contrast to "hand-waving" discussions found in popularizations of the subject - yet not so much mathematics as to lose track of the physics in an impenetrable forest of equations. An equally strong point is the author's discussion of the most exciting contemporary issues in astrophysics apart from black holes: recent measurements of the cosmic microwave background, the existence of the cosmological constant, dark matter, dark energy and the accelerated expansion of the universe. The final chapters on unification and inflation are also very well done and not generally found in other introductory treatments of general relativity. In sum, the book is highly informative and has a user-friendly style, which should make it an attractive choice for teachers and students. .
Price: $46.99
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Wormholes: Essays and Occasional Writings
A collection of the virtuoso nonfiction writings by one of our greatest contemporary storytellers As a novelist, John Fowles needs no introduction His popularity and his place in the English literary canon have been assured for several decades. His novels The Magus and The French Lieutenant's Woman became instant classics upon publication. But his nonfiction writings are less well known, in part because their appearance has been scattered in ephemeral periodicals, academic journals, or as forewords or introductions to other authors' work. Wormholes is the first representative gathering of Fowles's fugitive and intensely personal writings: essays, literary criticism, commentaries, autobiographical statements, memoirs, and musings.Wormholes is divided into four sections--Writing and the Self, Culture and Society, Literature and Literary Criticism, and Nature and the Nature of Nature; these thirty pieces, dating from 1963 to the present, range in length from a single page to substantial essays. Wormholes is a reflection of the writer's developing views on the art of fiction and on the relationship of literature to life and morality throughout the mature, fertile period of his career. Not only is it a rich mine of essays as art, it is also geography of the mind of one of the greatest novelists of the twentieth century. .
Price: $9.39
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The Wormhole Adventures: Travel Is Relative
The Wormhole Adventures: Travel Is Relative introduces Barnaby, a talking raven, who stumbles upon an entry through time and space called a wormhole He and his three new friends, Paul, Sebastian and Lynn, travel back in time where they meet the great physicist Albert Einstein. Einstein educates the children on his scientific theories. Much to the children’s surprise, Barnaby has his own fascinating story to tell..
Price: $12.94
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In Search of the Edge of Time: Black Holes, White Holes, Wormholes (Practical Resources for the Mental Health Professionals)
Time travel has been a common feature in popular science fiction, but with today's understanding of black holes, it could possibly be a reality Many astrophysicists believe black holes can function as tunnels leading to other times and other places and that they contain the key to the Big Bang. In this enthralling book John Gribbin lucidly explains such theories and guides us through a still emerging cosmos of neutron and X ray stars, white dwarfs, quasars, and pulsars. "Fascinating." --Hans Christian von Beyer, The New York Times Book Review.
Price: $60.14
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