Because the information in the unconscious is in an unruly and often disturbing form, a "censor" in the preconscious will not allow it to pass unaltered into the conscious. During dreams, the preconscious is more lax in this duty than in waking hours, but is still attentive: as such, the unconscious must distort and warp the meaning of its information to make it through the censorship. As such, images in dreams are often not what they appear to be, according to Freud, and need deeper interpretation if they are to inform on the structures of the unconscious.

    What they don't realize—and what Daniel Hillis's short book brilliantly demonstrates—is that computers' seemingly complex operations can be broken down into a few simple parts that perform the same simple procedures over and over again.Computer wizard Hillis offers an easy-to-follow explanation of how data is processed that makes the operations of a computer seem as straightforward as those of a bicycle. Avoiding technobabble or discussions of advanced hardware, the lucid explanations and colorful anecdotes in The Pattern on the Stone go straight to the heart of what computers really do.Hillis proceeds from an outline of basic logic to clear descriptions of programming languages, algorithms, and memory. He then takes readers in simple steps up to the most exciting developments in computing today—quantum computing, parallel computing, neural networks, and self-organizing systems.Written clearly and succinctly by one of the world's leading computer scientists, The Pattern on the Stone is an indispensable guide to understanding the workings of that most ubiquitous and important of machines: the computer.

    Within the course of a decade, tracks were being laid as far afield as Australia and Cuba, and by the outbreak of World War I, the United States alone boasted over a quarter of a million miles. With unrelenting determination, architectural innovation, and under gruesome labor conditions, a global railroad network was built that forever changed the way people lived. From Panama to Punjab, from Tasmania to Turin, Christian Wolmar shows how cultures were enriched, and destroyed, by one of the greatest global transport revolutions of our time, and celebrates the visionaries and laborers responsible for its creation.

    Many still vividly remember exactly where they were and what they were doing when they heard about the tragedy. In The Challenger Launch Decision, Diane Vaughan recreates the steps leading up to that fateful decision, contradicting conventional interpretations to prove that what occurred at NASA was not skulduggery or misconduct but a disastrous mistake.Journalists and investigators have historically cited production problems and managerial wrong-doing as the reasons behind the disaster. The Presidential Commission uncovered a flawed decision-making process at the space agency as well, citing a well-documented history of problems with the O-ring and a dramatic last-minute protest by engineers over the Solid Rocket Boosters as evidence of managerial neglect.Why did NASA managers, who not only had all the information prior to the launch but also were warned against it, decide to proceed? In retelling how the decision unfolded through the eyes of the managers and the engineers, Vaughan uncovers an incremental descent into poor judgment, supported by a culture of high-risk technology. She reveals how and why NASA insiders, when repeatedly faced with evidence that something was wrong, normalized the deviance so that it became acceptable to them.No safety rules were broken. No single individual was at fault. Instead, the cause of the disaster is a story not of evil but of the banality of organizational life. This powerful work explains why the Challenger tragedy must be reexamined and offers an unexpected warning about the hidden hazards of living in this technological age.

    Amazingly, he completed the task in an intense six weeks, and Eine kurze Weltgeschichte für junge Leser was published in Vienna to immediate success, and is now available in seventeen languages across the world. Toward the end of his long life, Gombrich embarked upon a revision and, at last, an English translation. A Little History of the World presents his lively and involving history to English-language readers for the first time. Superbly designed and freshly illustrated, this is a book to be savored and collected. In forty concise chapters, Gombrich tells the story of man from the stone age to the atomic bomb. In between emerges a colorful picture of wars and conquests, grand works of art, and the spread and limitations of science. This is a text dominated not by dates and facts, but by the sweep of mankind's experience across the centuries, a guide to humanity's achievements and an acute witness to its frailties. The product of a generous and humane sensibility, this timeless account makes intelligible the full span of human history.

    An updated and revised version of this classic compendium of the military history of the world.

    The depth below is hot, much warmer than the surface and this book tunnels down through the geological layers, meeting the creatures that dwell in darkness, real and fictional -- rats and eels, monsters and ghosts. There is a bronze-age trackway under the Isle of Dogs, Wren found Anglo-Saxon graves under St Paul's, and the monastery of Whitefriars lies beneath Fleet Street. In Kensal Green cemetery there was a hydraulic device to lower bodies into the catacombs below -- "Welcome to the lower depths". A door in the plinth of statue of Boadicea on Westminster Bridge leads to a huge tunnel, packed with cables -- gas, water, telephone. When the Metropolitan Line was opened in 1864 the guards asked for permission to grow beards to protect themselves against the sulphurous fumes, and called their engines by the names of tyrants -- Czar, Kaiser, Mogul -- and even Pluto, god of the underworld.Going under London is to penetrate history, to enter a hidden world. "The vastness of the space, a second earth," writes Peter Ackroyd, "elicits sensations of wonder and of terror. It partakes of myth and dream in equal measure."

    Architectural marvels, including the M.C. Escher-like stepwells in India. Mind-boggling events, like the Baby Jumping Festival in Spain, where men dressed as devils literally vault over rows of squirming infants. Not to mention the Great Stalacpipe Organ in Virginia, Turkmenistan’s 45-year hole of fire called the Door of Hell, coffins hanging off a side of a cliff in the Philippines, eccentric bone museums in Italy, or a weather-forecasting invention that was powered by leeches, still on display in Devon, England.Atlas Obscura revels in the weird, the unexpected, the overlooked, the hidden, and the mysterious. Every page expands our sense of how strange and marvelous the world really is. And with its compelling descriptions, hundreds of photographs, surprising charts, maps for every region of the world, it is a book you can open anywhere.

    G. Lord was becoming a teenager in Southern California and her mother was dying of cancer, Lord's father-an archetypal, remote, rocket engineer- disappeared into his work at the Jet Propulsion Laboratory in Pasadena, building the space probes of the Mariner Mars 69 mission. Thirty years later, Lord found herself reporting on the JPL, triggering childhood memories and a desire to revisit her past as a way of understanding the ethos of rocket science. Astro Turf is the brilliant result of her journey of discovery.Remembering her pain at her father's absence, yet intrigued by what he did, Lord captures him on the page as she recalls her own youthful, eccentric fascination with science and space exploration. Into her family's saga she weaves the story of the legendary JPL- examining the complexities of its cultural history, from its start in 1936 to the triumphant Mars landings in 2004. She illuminates its founder, Frank Malina, whose brilliance in rocketry was shadowed by a flirtation with communism, driving him from the country even as we welcomed Wernher von Braun and his Nazi colleagues. Lord's own love of science fiction becomes a lens through which she views a profound cultural shift in the male-dominated world of space. And in pursuing the cause of her father's absence she stumbles on a hidden guilt, understanding "the anguish his proud silence caused both him and me, and how rooted that silence was in the culture of engineering."As in her acclaimed book Forever Barbie, which demystified an icon of feminine culture, Lord brings her penetrating insight to bear on a bastion of American masculinity, opening our eyes in unexpected and memorable ways.

    Four years later, seasoned by intense training and deployments in the tense confrontations of the cold war, he became the only one of that initial group to rise to become an instructor at the navy's elite Fighter Weapons School. As a Topgun instructor, Bio was responsible for teaching the best fighter pilots of the Navy and Marine Corps how to be even better. He schooled them in the classroom and then went head-to-head with them in the skies. Then, in August 1985, Bio was assigned to combine his day-to-day flight duties with participation in a Pentagon-blessed project to film action footage for a major Hollywood movie focusing on the lives, loves, heartbreaks, and triumphs of young fighter pilots: Top Gun. Bio soon found himself riding in limousines to attend gala premieres, and being singled out by giggling teenagers and awed schoolboys who recognized the name "Topgun" on his T-shirts. The book ends with his reflections on his career as a skilled naval aviator and his enduring love of flight. The paperback and Kindle editions include more than fifty rare full color photographs of fighter jets in action.

    Its success "might have established communal property, a far wider democracy in political and legal institutions, might have disestablished the state church and rejected the protestant ethic." In The World Turned Upside Down, Christopher Hill studies the beliefs of such radical groups as the Diggers, the Ranters, the Levellers and others, and the social and emotional impulses that gave rise to them. The relations between rich and poor classes, the part played by wandering 'masterless men,' the outbursts of sexual freedom and deliberate blasphemy, the great imaginative creations of Milton and Bunyan - these and many other elements build up into a marvellously detailed and coherent portrait of this strange, sudden effusion of revolutionary beliefs. It is a portrait not of the bourgeois revolution that actually took place, but of the impulse towards a far more fundamental overturning of society."Incorporates some of Dr. Hill's most profound statements yet about the 17th-century revolution as a whole." -- The Economist

    But until now, we have known only half the story. With the end of the cold war, decades of secrets have been exposed, bringing with them a remarkable opportunity: the unmasking of the true heroes and villains behind one of the most exciting races in history.At the center of this exhilarating, fast-paced account are Wernher von Braun, the camera-friendly former Nazi scientist who led the American rocket design team, and Sergei Korolev, the chief Soviet designer and former political prisoner whose identity was a closely guarded state secret. These rivals were opposite in every way, save for one: each was obsessed by the idea of launching a man to the Moon. Korolev told his wife, "In every century men were looking into the sky and dreaming. And now I'm close to the greatest dream of mankind."In attempting to fulfill this dream, Korolev was initially hampered by a budget so small that his engineers were forced to repurpose cardboard boxes as drafting tables. Von Braun, meanwhile, was eventually granted almost limitless access to funds by an American government panicked at the thought that their cold war enemy might take the lead in the exploration of space. Korolev, whose family life was destroyed by his long sentence in the Gulag, was constantly aware that any false move would finish his career or even his life. His rival, on the other hand, enjoyed remarkable celebrity in America and was even the subject of a 1960 biopic.In this extraordinary book, Deborah Cadbury combines sheeradventure and nail-biting suspense with a moving portrayal of the space race's human dimension. Using source materials never before seen, she reveals that the essential story of the cold war is a mind-bending voyage beyond the bounds of the Earth, one marked by espionage, ambition, ingenuity, and passion.

    A graduate of West Point and an inductee in the National College Football Hall of Fame for his All-American performance for Army, Olds was one of the toughest college football players at the time. In WWII, Olds quickly became a top fighter pilot and squadron commander by the age of 22—and an ace with 12 aerial victories.But it was in Vietnam where the man became a legend. He arrived in 1966 to find a dejected group of pilots and motivated them by placing himself on the flight schedule under officers junior to himself, then challenging them to train him properly because he would soon be leading them. Proving he wasn’t a WWII retread, he led the wing with aggressiveness, scoring another four confirmed kills, becoming a rare triple ace.Olds (who retired a brigadier general and died in 2007) was a unique individual whose personal story is one of the most eagerly anticipated military books of the year.

    Turing Mathematician Alan Turing invented an imaginary computer known as the Turing Machine; in an age before computers, he explored the concept of what it meant to be "computable," creating the field of computability theory in the process, a foundation of present-day computer programming.The book expands Turing's original 36-page paper with additional background chapters and extensive annotations; the author elaborates on and clarifies many of Turing's statements, making the original difficult-to-read document accessible to present day programmers, computer science majors, math geeks, and others.Interwoven into the narrative are the highlights of Turing's own life: his years at Cambridge and Princeton, his secret work in cryptanalysis during World War II, his involvement in seminal computer projects, his speculations about artificial intelligence, his arrest and prosecution for the crime of "gross indecency," and his early death by apparent suicide at the age of 41.

     The place: TOP GUN In the darkest days of the Vietnam War, the U.S. Navy's kill ratio had fallen to 2:1 -- a deadly decline in pilot combat effectiveness. To improve the odds, a corps of hardened fighter pilots founded the Fighter Weapons School, a.k.a. TOP GUN. Utilizing actual enemy fighter planes in brutally realistic dogfights, the Top Gun instructors dueled their students and each other to achieve a lethal new level of fighting expertise. The training paid off. Combining the latest weaponry and technology, mental endurance, and razor-sharp instincts, the Top Gunners drove the Navy's kill ratio up to an astounding 12:1, dominating the skies over Vietnam. This gripping account takes you inside the cockpit for an adventure more explosive than any fiction -- in a dramatic true story of the legendary military school that has created the most dangerous fighter pilots the world has ever seen.