For those of you who are worried about what the neighbors will think, there is what is purported to be an old Martian document which tells us what our nearest neighbor has to say about life on Earth.Later in the book, Clarke goes on to explain the proper etiquette for contacting and dealing with aliens from outer space, or what to do if they get here first...Ranging from the light fantastic to the extremely possible, this collection is divided into five sections: Talking of Space; Outward from Earth; The Technological Future; Frontiers of Science; and Son of Dr. Strangelove, Etc.From Martians to Magi, here is Arthur C. Clarke's unforgettable tour of the Universe - known, unknown and yet to come.

    Once in command of his new abilities, Dammy promptly commandeers Xorialle's ship & sets out to track down the "Galactic Concensus" in the neighborhood of Deneb. The closer he gets, the more bewildering his discoveries about the origin of the whole adventure--the most curious pieces of the puzzle being a mild-mannered, bee-like creature by the name of Floss & a telepathic protohominid called Sport. Laumer, who can develop a science-fiction idea with some ingenuity (Bolo, 1976), never finds the right tone or style for this one; most events coast along in a fog of adolescent facetiousness that doesn't match the overall ambitions of the plot.--Kirkus

    Designed for the junior- level astrophysics course, each topic is approached in the context of the major unresolved questions in astrophysics. The core chapters have been designed for a course in stellar structure and evolution, while the extended chapters provide additional coverage of the solar system, galactic structure, dynamics, evolution, and cosmology. * Two versions of this text are available: An Introduction to Modern Stellar Astrophysics, (Chapters 1-17), and An Introduction to Modern Astrophysics, (Chapters 1-28). * Computer programs included with the text allow students to explore the physics of stars and galaxies. * In designing a curriculum, instructors can combine core and extended chapters with the optional advanced sections so as to meet their individual goals. * Up-to-date coverage of current astrophysical discoveries are included. * This text emphasizes computational physics, including computer problems and on-line programs. * This text also includes a selection of over 500 problems. For additional information and computer codes to be used

    - This is the best kind of popular science: informed, impassioned, and highly accessible.- Compare it to Stephen Hawking's The Universe in a Nutshell, but broader in scope and much more readable.- A crossover for the Young Adult market, now in the perfect format.

    Exploring their impact and legacy with leading scientists of today including Stephen Jay Gould, Oliver Sacks, Lewis Wolpert, Susan Greenfield, Roger Penrose and Richard Dawkins, Melvyn Bragg illuminates the core issues of science past and present, and conveys the excitement and importance of the scientific quest.

    Readers will find an enlightening history of the vacuum: how the efforts to make a better vacuum led to the discovery of the electron; the understanding that the vacuum is filled with fields; the ideas of Newton, Mach, and Einstein on the nature of space and time; the mysterious aether and how Einstein did away with it; and the latest ideas that the vacuum is filled with the Higgs field. The story ranges from the absolute zero of temperature and the seething vacuum of virtual particles and anti-particles that fills space, to the extreme heat and energy of the early universe. It compares the ways that substances change from gas to liquid and solid with the way that the vacuum of our universe has changed as the temperature dropped following the Big Bang. It covers modern ideas that there may be more dimensions to the void than those that we currently are aware of and even that our universe is but one in a multiverse. The Void takes us inside a field of science that may ultimately provide answers to some of cosmology's most fundamental questions: what lies outside the universe, and, if there was once nothing, then how did the universe begin?

    In What If the Earth Had Two Moons, Neil Comins leads us on a fascinating ten-world journey as we explore what our planet would be like under alternative astronomical conditions. In each case, the Earth would be different, often in surprising ways. The title chapter, for example, gives us a second moon orbiting closer to Earth than the one we have now. The night sky is a lot brighter, but that won't last forever. Eventually the moons collide, with one extra-massive moon emerging after a period during which Earth sports a Saturn-like ring. This and nine and other speculative essays provide us with insights into the Earth as it exists today, while shedding new light on the burgeoning search for life on planets orbiting other stars. Appealing to adult and young adult readers alike, this book follows on the author's previous bestseller, What If the Moon Didn't Exist?, with completely new scenarios backed by the latest astronomical research.

    Let the finest science fiction writer of our time, co-author of the smash bestseller LUCIFER'S HAMMER, take you on a guided tour of the wonders of our age, and of ages to come. We live in an age of marvels. We could still go to space. We could still mine the asteroids. We could still take part in developing mankind’s vast future. Indeed, it is easier to do now than it would have been when I wrote these essays. We have computers and the Internet. There is free exchange of ideas throughout most of the world, and the information revolution relentlessly expands that area. We still face the threat of famine, but it is not as acute as it was in the times when these essays were written. Communications, transportation, electronics, rocket technology, it’s all better now. We can still go to the planets.Read about: The monstrous Black Hole that may be slowly devouring our galaxy; The Fact and Fancy of flying Saucers; How micro-cybernetic and bio-implants will one day give you a photographic memory and the calculating power of an Einstein; Turning venus into a second Earth--and the Asteroids into our own Back Yard; How Western Civilization can not only survive--but survive with style! All this and much much more. Every chapter is State of the Art, every idea A Step Farther Out.Contents: * Non-Fiction by Jerry Pournelle (1979) • essay by Jerry Pournelle * Preface: The Freedom of Choice (A Step Farther Out) (1979) • essay by Larry Niven * Foreword (A Step Farther Out) (1979) • essay by A. E. van Vogt * Introduction (A Step Farther Out) (1979) • essay by Jerry Pournelle * Commentary (A Step Farther Out: Part One: Survival with Style) [Commentary (A Step Farther Out) • 1] (1979) • essay by Jerry Pournelle * Survival with Style [A Step Farther Out] (1976) • essay by Jerry Pournelle * Blueprint for Survival [A Step Farther Out] (1976) • essay by Jerry Pournelle * How long the Doomsday (1979) • essay by Jerry Pournelle * That Buck Rogers Stuff [A Step Farther Out] • (1976) • essay by Jerry Pournelle * Commentary (A Step Farther Out: Part Two: Stepping Farther Out) [Commentary (A Step Farther Out) • 2] (1979) • essay by Jerry Pournelle * Here Come the Brains [A Step Farther Out] (1974) • essay by Jerry Pournelle * The Big Rain [A Step Farther Out] (1975) • essay by Jerry Pournelle * Flying Saucers (1979) • essay by Jerry Pournelle * Building the Mote in God's Eye [A Step Farther Out] (1976) • essay by Larry Niven and Jerry Pournelle * Commentary (A Step Farther Out: Part Three: A Step Farther In: Black Holes) [Commentary (A Step Farther Out) • 3] (1979) • essay by Jerry Pournelle * Gravity Waves, Black Holes, and Cosmic Censors (1979) • essay by Jerry Pournelle * Fuzzy Black Holes Have No Hair [A Step Farther Out] (1975) • essay by Jerry Pournelle * Crashing Neutron Stars, Mini Black Holes, and Spacedrives (1979) • essay by Jerry Pournelle * In the Beginning ... (1979) • essay by Jerry Pournelle * Afterword to Part III (1979) • essay by Jerry Pournelle * Commentary (A Step Farther Out: Part Four: Space Travel) [Commentary (A Step Farther Out) • 4] (1979) • essay by Jerry Pournelle * Halfway to Anywhere [A Step Farther Out] (1974) • essay by Jerry Pournelle * Those Pesky Belters and Their Torchships [A Step Farther Out] (1974) • essay by Jerry Pournelle * Ships for Manned Spaceflight [A Step Farther Out] (1974) • essay by Jerry Pournelle * Life Among the Asteroids [A Step Farther Out] (1975) • essay by Jerry Pournelle * What's It Like Out There? (1979) • essay by Jerry Pournelle * Commentary (A Step Farther Out: Part Five: A Generation of Wonder) [Commentary (A Step Farther Out) • 5] (1979) • essay by Jerry Pournelle * A Potpourri (1979) • essay by Jerry Pournelle * Highways to Space (1979) • essay by Jerry Pournelle * Come Fly with Me (1979) • essay by Jerry Pournelle * The Tools of the Trade (And Other Scientific Matters) (1979) • essay by Jerry Pournelle * Commentary (A Step Farther Out: Part Six: The Energy Crisis) [Commentary (A Step Farther Out) • 6] (1979) • essay by Jerry Pournelle * Fusion Without Ex-Lax [A Step Farther Out] (1979) • essay by Jerry Pournelle (variant of Fusion Without Exlax 1976) * Can Trash Save Us? [A Step Farther Out] (1977) • essay by Jerry Pournelle * The Moral Equivalent of War [A Step Farther Out] (1978) • essay by Jerry Pournelle * Some Futures [A Step Farther Out] (1977) • essay by Jerry Pournelle .

    To its adherents, it is an elegant statement about learning from experience. To its opponents, it is subjectivity run amok.In the first-ever account of Bayes' rule for general readers, Sharon Bertsch McGrayne explores this controversial theorem and the human obsessions surrounding it. She traces its discovery by an amateur mathematician in the 1740s through its development into roughly its modern form by French scientist Pierre Simon Laplace. She reveals why respected statisticians rendered it professionally taboo for 150 years—at the same time that practitioners relied on it to solve crises involving great uncertainty and scanty information (Alan Turing's role in breaking Germany's Enigma code during World War II), and explains how the advent of off-the-shelf computer technology in the 1980s proved to be a game-changer. Today, Bayes' rule is used everywhere from DNA de-coding to Homeland Security.Drawing on primary source material and interviews with statisticians and other scientists, The Theory That Would Not Die is the riveting account of how a seemingly simple theorem ignited one of the greatest controversies of all time.

    Just about everyone has at least heard of Albert Einstein's formulation of 1905, which came into the world as something of an afterthought. But far fewer can explain his insightful linkage of energy to mass. David Bodanis offers an easily grasped gloss on the equation. Mass, he writes, "is simply the ultimate type of condensed or concentrated energy," whereas energy "is what billows out as an alternate form of mass under the right circumstances." Just what those circumstances are occupies much of Bodanis's book, which pays homage to Einstein and, just as important, to predecessors such as Maxwell, Faraday, and Lavoisier, who are not as well known as Einstein today. Balancing writerly energy and scholarly weight, Bodanis offers a primer in modern physics and cosmology, explaining that the universe today is an expression of mass that will, in some vastly distant future, one day slide back to the energy side of the equation, replacing the "dominion of matter" with "a great stillness"--a vision that is at once lovely and profoundly frightening. Without sliding into easy psychobiography, Bodanis explores other circumstances as well; namely, Einstein's background and character, which combined with a sterling intelligence to afford him an idiosyncratic view of the way things work--a view that would change the world. --Gregory McNamee

    He provides readers with non-trivial insights into research fields they may not have encountered previously . . . I think everyone who has ever considered the possibility that other intelligent civilizations exist elsewhere within our galaxy will enjoy Where Is Everybody? They will find much to agree with, and much to argue about, in this very accessible volume.� �SCIENCE During a Los Alamos lunchtime conversation that took place more than 50 years ago, four world-class scientists agreed, given the size and age of the Universe, that advanced extraterrestrial civilizations simply had to exist. The sheer numbers demanded it. But one of the four, the renowned physicist and back-of-the-envelope calculator Enrico Fermi, asked the telling question: If the extraterrestrial life proposition is true, he wondered, "Where IS everybody?" In this lively and thought-provoking book, Stephen Webb presents a detailed discussion of the 50 most cogent and intriguing answers to Fermi's famous question, divided into three distinct groups: - Aliens are already here among us. Here are answers ranging from Leo Szilard's suggestion that they are already here, and we know them as Hungarians, to the theorists who claim that aliens built Stonehenge and the Easter Island statues. - Aliens exist, but have not yet communicated. The theories in this camp range widely, from those who believe we simply don't have the technologies to receive their signals, to those who believe the enormities of space and time work against communication, to those who believe they're hiding from us. - Aliens do not exist. Here are the doubters' arguments, from the Rare Earth theory to the author's own closely argued and cogently stated skepticism. The proposed solutions run the gamut from the crackpot to the highly serious, but all deserve our consideration. The varieties of arguments -- from first-rate scientists, philosophers and historians, and science fiction authors -- turn out to be astonishing, entertaining, and vigorous intellectual exercises for any reader interested in science and the sheer pleasure of speculative thinking. Stephen Webb is a physicist working at the Open University in England and the author of Measuring the Universe.

    Now William Dunham gives them the attention they deserve.Dunham places each theorem within its historical context and explores the very human and often turbulent life of the creator — from Archimedes, the absentminded theoretician whose absorption in his work often precluded eating or bathing, to Gerolamo Cardano, the sixteenth-century mathematician whose accomplishments flourished despite a bizarre array of misadventures, to the paranoid genius of modern times, Georg Cantor. He also provides step-by-step proofs for the theorems, each easily accessible to readers with no more than a knowledge of high school mathematics.A rare combination of the historical, biographical, and mathematical, Journey Through Genius is a fascinating introduction to a neglected field of human creativity.

    and now, The Fourth Dimension is this handy paperback. The result is a fantastic, enlightening, and mind-expanding reading experience. In text, pictures, and puzzles, master science and science fiction writer Rudy Rucker immerses his readers in an amazing exploration of a mysterious realm — a realm once seen only by mystics, physicists, and mathematicians. More accessible than Gödel, Escher, Bach and more playful than The Tao of Physics, Rucker's The Fourth Dimension is the most engaging tour of other dimensions since Flatland.David Povilaitis' 200 drawings illustrate Rucker's heady insights while dozens of puzzles and problems make the book a delight to the eye and mind. As Eileen Pollack has written in her rave review, The Fourth Dimension is "magical ... Its effects persist beyond its covers." That's because, like everything else in the fourth dimension, this is more than a book, it is a mental spaceship capable of grand tours of universes far beyond our own.

    Today, scientists are attempting to measure the entire universe and to determine its origin. Although the methods have changed, the quest to chart the horizons of space and time continues to be one of the great adventures of science.Measuring the Universe is an eloquent chronicle of the men and women– from Aristarchus to Cassini, Sir Isaac Newton to Henrietta Leavitt and Stephen Hawking–who have gradually unlocked the mysteries of "how far" and in so doing have changed our ideas about the size and nature of the universe and our place in it. Kitty Ferguson reveals their methods to have been as inventive as their results were–and are–eye-opening. Advances such as Copernicus's revolutionary insights about the arrangement of the solar system, William Herschel's meticulous creation of the first three-dimensional map of the universe, and Edwin Hubble's astonishing discovery that the universe is expanding have by turns revolutionized our concept of the universe. Connecting centuries of breakthroughs with the political and cultural events surrounding them, Ferguson makes astronomy part of the sweep of history.To measure the seemingly immeasurable, scientists have always pushed the boundaries of the imagination–today, for example, facing the paradox of an ever-expanding universe that doesn't appear to expand into anything. In Kitty Fergeson's skillfill hands, the unimaginable becomes accessible and the splendid quest something we all can share.

    Their quest: to be the first to detect gravitational waves, infinitesimal quakes that stretch and compress space-time and could add a brand-new dimension to our universal knowledge-allowing us to hear a sun going supernova, black holes colliding, and perhaps one day, the remnant rumble of the Big Bang itself...