Our Big Bang, our distant future, parallel worlds, the sub-atomic and intergalactic - none of them are what they seem. But there is a way to understand this immense strangeness - mathematics. Seeking an answer to the fundamental puzzle of why our universe seems so mathematical, Tegmark proposes a radical idea: that our physical world not only is described by mathematics, but that it is mathematics. This may offer answers to our deepest questions: How large is reality? What is everything made of? Why is our universe the way it is?Table of ContentsPreface 1 What Is Reality? Not What It Seems • What’s the Ultimate Question? • The Journey Begins Part One: Zooming Out 2 Our Place in Space Cosmic Questions • How Big Is Space? • The Size of Earth • Distance to the Moon • Distance to the Sun and the Planets • Distance to the Stars • Distance to the Galaxies • What Is Space? 3 Our Place in TimeWhere Did Our Solar System Come From? • Where Did theGalaxies Come From? • Where Did the Mysterious MicrowavesCome From? • Where Did the Atoms Come From? 4 Our Universe by NumbersWanted: Precision Cosmology • Precision Microwave-Background Fluctuations • Precision Galaxy Clustering • The Ultimate Map of Our Universe • Where Did Our Big Bang Come From? 5 Our Cosmic Origins What’s Wrong with Our Big Bang? • How Inflation Works • The Gift That Keeps on Giving • Eternal Inflation 6 Welcome to the Multiverse The Level I Multiverse • The Level II Multiverse • Multiverse Halftime Roundup Part Two: Zooming In 7 Cosmic Legos Atomic Legos • Nuclear Legos • Particle-Physics Legos • Mathematical Legos • Photon Legos • Above the Law? • Quanta and Rainbows • Making Waves • Quantum Weirdness • The Collapse of Consensus • The Weirdness Can’t Be Confined • Quantum Confusion 8 The Level III Multiverse The Level III Multiverse • The Illusion of Randomness • Quantum Censorship • The Joys of Getting Scooped • Why Your Brain Isn’t a Quantum Computer • Subject, Object and Environment • Quantum Suicide • Quantum Immortality? • Multiverses Unified • Shifting Views: Many Worlds or Many Words? Part Three: Stepping Back 9 Internal Reality, External Reality and Consensus Reality External Reality and Internal Reality • The Truth, the Whole Truth and Nothing but the Truth • Consensus Reality • Physics: Linking External to Consensus Reality 10 Physical Reality and Mathematical Reality Math, Math Everywhere! • The Mathematical Universe Hypothesis • What Is a Mathematical Structure? 11 Is Time an Illusion? How Can Physical Reality Be Mathematical? • What Are You? • Where Are You? (And What Do You Perceive?) • When Are You? 12 The Level IV Multiverse Why I Believe in the Level IV Multiverse • Exploring the Level IV Multiverse: What’s Out There? • Implications of the Level IV Multiverse • Are We Living in a Simulation? • Relation Between the MUH, the Level IV Multiverse and Other Hypotheses •Testing the Level IV Multiverse 13 Life, Our Universe and Everything How Big Is Our Physical Reality? • The Future of Physics • The Future of Our Universe—How Will It End? • The Future of Life •The Future of You—Are You Insignificant? Acknowledgments Suggestions for Further Reading Index

    He is employed by Freeground station as a port traffic controller, a job he took after completing a tour in the military. His only real joy in life is his participation in true-to-life military simulations with a cadre of friends who come together regularly to defeat challenges made to test the brightest military cadets and officers alike. These restricted scenarios stand as an addictive preoccupation that is so enticing that they ignore the potential repercussions of breaking in to participate. When someone betrays their identities to the Freeground Fleet Admiralty, Jonas and his friends are faced with a far greater challenge: to venture out into the more populated regions of the galaxy to acquire technology and knowledge. They are tasked with laying the groundwork for the Freeground Nation in their efforts to reconnect with the rest of humanity, and to secure the armaments they might need to defend themselves from encroaching enemies. Spinward Fringe Broadcast 0: Origins is a collected trilogy that chronicles the early adventures of an ambitious crew. Their leader, Jonas Valent, has the least to lose and everything to gain as he tells the tale of his first tour as Captain of a ship tasked with making allies and discovering new technologies for the good of his people. This simple mission becomes more complicated as the crew ventures further into the settled fringes of the galaxy. This trilogy spawned the best selling Spinward Fringe eBook series. This is where it all began, when one man was challenged to aspire for more than an idle life. A Space Opera Adventure enjoyed across the globe by all ages.

    Librarian's note: An alternate cover edition can be found hereThis novel tells the story of America's race to Mars and the web of passionate conflict it weaves among the astronauts and their wives -- and between Russia and the United States, the contestants in this deadly race.

    Intelligent beings are finally found from the Mote, an isolated star in a thick dust cloud. The bottled-up ancient civilization, at least one million years old, are welcoming, kind, yet evasive, with a dark problem they have not solved in over a million years.

    Her captivating inquiry into the most modern and daring of technologies spanning some 60 years — a mere speck in cosmic terms — takes the reader on a journey which captures the relics of space forays and uncovers the cultural value of detritus all too readily dismissed as junk.In this book, she takes a physical journey through the solar system and beyond, and a conceptual journey into human interactions with space. Her tools are artefacts, historical explorations, the occasional cocktail recipe, and the archaeologist’s eye applied not only to the past, but the present and future as well.Erudite and playful, Dr Space Junk reveals that space is not as empty as we might think. And that by looking up and studying space artefacts, we learn an awful lot about our own culture on earth. She makes us realise that objects from the past — the material culture produced by the Space Age and beyond — are so significant to us now because they remind us of what we might want to hold onto into the future.

    The Universe, of course, is our own. And Roundworld is Earth. As the wizards watch their accidental creation grow, we follow the story of our universe from the primal singularity of the Big Bang to the Internet and beyond. Through this original Terry Pratchett story (with intervening chapters from Cohen and Stewart) we discover how puny and insignificant individual lives are against a cosmic backdrop of creation and disaster. Yet, paradoxically, we see how the richness of a universe based on rules, has led to a complex world and at least one species that tried to get a grip of what was going on.

    They are the X-wing fighters. And as the struggle rages across the vastness of space, the fearless men and women who pilot them risk both their lives and their machines. Their mission: to defend the Rebel Alliance against a still-powerful and battle-hardened Imperial foe in a last-ditch effort to control the stars!Its very name strikes fear into enemy hearts. So when Rebel hero Wedge Antilles rebuilds the legendary Rogue Squadron, he seeks out only the best -- the most skilled, the most daring X-wing pilots. Through arduous training and dangerous missions, he weeds out the weak from the strong, assembling a group of hard-bitten warriors willing to fight, ready to die. Antilles knows the grim truth: that even with the best X-wing jockeys in the galaxy, many will not survive their near-suicidal missions. But when Rogue Squadron is ordered to assist in the assault on the heavily fortified Imperial stronghold of Black Moon, even the bravest must wonder if any at all will survive. . . .

    More than a possibility, it is becoming a necessity: whether our hand is forced by climate change and resource depletion or whether future catastrophes compel us to abandon Earth, one day we will make our homes among the stars.World-renowned physicist and futurist Michio Kaku explores in rich, accessible detail how humanity might gradually develop a sustainable civilization in outer space. With his trademark storytelling verve, Kaku shows us how science fiction is becoming reality: mind-boggling developments in robotics, nanotechnology, and biotechnology could enable us to build habitable cities on Mars; nearby stars might be reached by microscopic spaceships sailing through space on laser beams; and technology might one day allow us to transcend our physical bodies entirely.With irrepressible enthusiasm and wonder, Dr. Kaku takes readers on a fascinating journey to a future in which humanity could finally fulfil its long-awaited destiny among the stars - and perhaps even achieve immortality.

    A masterpiece of technical exposition, it was the basic textbook of astronomy for more than a thousand years, and still is the main source for our knowledge of ancient astronomy. This translation, based on the standard Greek text of Heiberg, makes the work accessible to English readers in an intelligible and reliable form. It contains numerous corrections derived from medieval Arabic translations and extensive footnotes that take account of the great progress in understanding the work made in this century, due to the discovery of Babylonian records and other researches. It is designed to stand by itself as an interpretation of the original, but it will also be useful as an aid to reading the Greek text.

    The continuous beats of a pulsar have become odd, irregular…artificial. It can only be a code.Frantically, a research team struggles to decipher the alien communication. And what the scientists discover is destined to shake the foundations of empires around this world—from Wall Street to the Vatican

    The year 2000 is alternatively the year 2544 (Buddhist), 6236 (Ancient Egyptian), 5761 (Jewish) or simply the Year of the Dragon (Chinese). The story of the creation of the Western calendar, which is related in this book, is a story of emperors and popes, mathematicians and monks, and the growth of scientific calculation to the point where, bizarrely, our measurement of time by atomic pulses is now more accurate than time itself: the Earth is an elderly lady and slightly eccentric - she loses half a second a century. Days have been invented (Julius Caesar needed an extra 80 days in 46BC), lost (Pope Gregory XIII ditched ten days in 1582) and moved (because Julius Caesar had 31 in his month, Augustus determined that he should have the same, so he pinched one from February).

    The Steampunk Bible is the first compendium about the movement, tracing its roots in the works of Jules Verne and H. G. Wells through its most recent expression in movies such as Sherlock Holmes. Its adherents celebrate the inventor as an artist and hero, re-envisioning and crafting retro technologies including antiquated airships and robots. A burgeoning DIY community has brought a distinctive Victorian-fantasy style to their crafts and art. Steampunk evokes a sense of adventure and discovery, and embraces extinct technologies as a way of talking about the future. This ultimate manual will appeal to aficionados and novices alike as author Jeff VanderMeer takes the reader on a wild ride through the clockwork corridors of Steampunk history.Praise for The Steampunk Bible:"The Steampunk Bible is an informed, informative and beautifully illustrated survey of the subject." -The Financial Times"The Steampunk Bible is far and away the most intriguing catalog of all things steam yet written." -The Austin Chronicle “It’s hard to imagine how VanderMeer and Chambers could have put together a stronger collection. Its publication marks a significant, self-conscious moment in the history of the movement.”—PopMatters.com

    A playful, entertaining, and mind-bending introduction to modern physics, it's already a major bestseller in Italy and the United Kingdom. Carlo Rovelli offers surprising—and surprisingly easy to grasp—explanations of general relativity, quantum mechanics, elementary particles, gravity, black holes, the complex architecture of the universe, and the role humans play in this weird and wonderful world. He takes us to the frontiers of our knowledge: to the most minute reaches of the fabric of space, back to the origins of the cosmos, and into the workings of our minds. “Here, on the edge of what we know, in contact with the ocean of the unknown, shines the mystery and the beauty of the world,” Rovelli writes. “And it’s breathtaking.”

    Now the creatures known as humans are near this momentous turning point.But an armed threat is approaching from deepest space, determined to prevent humankind from crossing over that boundary—by total annihilation if necessary.To the Sh'daar, the driving technologies of transcendent change are anathema and must be obliterated from the universe—along with those who would employ them. As their great warships destroy everything in their path en route to the Sol system, the human Confederation government falls into dangerous disarray.There is but one hope, and it rests with a rogue Navy Admiral, commander of the kilometer-long star carrier America, as he leads his courageous fighters deep into enemy space towards humankind's greatest conflict—and quite possibly its last.

    Wells’s War of the Worlds to Ray Bradbury’s Martian Chronicles to the fiction of “cyberpunks.” In addition to enthralling readers with breathtaking narratives and dazzling the imagination with mind-bending glimpses of possible futures, the best science fiction asks essential questions: What does it mean to be human? Are we alone in the universe, and what does it mean if we’re not?Esteemed professor Michael D.C. Drout traces the history of science fiction in this series of stimulating lectures. From Mary Shelley’s Frankenstein to today’s cutting- edge authors, Drout offers a compelling analysis of the genre, including a look at hard-boiled science fiction, the golden age of science fiction, New Wave writers, and contemporary trends in the field.14 Lectures on 7 Audiocassettes.