It took the open source world by storm since its inception in 2005, and is used by small development shops and giants like Google, Red Hat, and IBM, and of course many open source projects.A book by Git experts to turn you into a Git expert. Introduces the world of distributed version control Shows how to build a Git development workflow.

    The autobiography of the first cosmonaut.

    “Kelly” Johnson led the design of such crucial aircraft as the P-38 and Constellation, but he will be more remembered for the U-2 and SR-71 spy planes. His extraordinary leadership of the Lockheed “Skunk Works” cemented his reputation as a legendary figure in American aerospace management.

    Indeed our ability to do so is what separates we humans from the rest of the animal world. The moment man first converted a stone to a useful tool set him on a relentless path toward greater power over his environment. But have our creative ideas always produced desirable results in line with their original good intention? Have they really served us well?BAD IDEAS? traces the fascinating history of our attempts at self-improvement but also questions their value. The dubious consequences of the development of weaponry, for example, is self-evident. But what of apparently more innocuous inventions such as farming, writing or medicine? All started off for the greater good but have since produced unforeseen fallout that continues to this day. What are their undesirable side-effects, when did they emerge and where will they take us in the future?Written against a huge historical canvas, we join Robert Winston on a thrilling journey from our earliest days to the present. We learn about the history of modern science, engineering, IT and much more. We meet the individuals who played a key role in their development, and share quirky anecdotes about their lives and brainwaves. Inspiring, unusual, and at times controversial, BAD IDEAS? assesses the past and also looks forward to the opportunities and ethical challenges of the future. In so doing it celebrates man's extraordinary capacity for achievement whilst warning us that his good intentions can sometimes end up as thoroughly bad ideas.

    It's all too easy to ignore the fascinating possibilities of emptiness and non-existence, and we may well wonder what there is to say about nothing. But scientists have known for centuries that nothing is the key to understanding absolutely everything, from why particles have mass to the expansion of the universe - so without nothing we'd be precisely nowhere.Absolute zero (the coldest cold that can exist) and the astonishing power of placebos, light bulbs, superconductors, vacuums, dark energy, 'bed rest' and the birth of time - all are different aspects of the concept of nothing. The closer we look, the bigger the subject gets. Why do some animals spend all day doing nothing? What happens in our brains when we try to think about nothing? With chapters by 20 science writers, including top names such as Ian Stewart, Marcus Chown, Nigel Henbest, Michael Brooks, Paul Davies and David Fisher, this fascinating and intriguing book revels in a subject that has tantalised the finest minds for centuries, and shows there's more to nothing than meets the eye.

    When Neil Armstrong and Buzz Aldrin first set foot on lunar soil, the moon ceased to be a place of mystery and myth. It became a destination.Now, on the fiftieth anniversary of that journey, Moonbound tells the monumental story of the moon and the men who went there first. With vibrant images and meticulous attention to detail, Jonathan Fetter-Vorm conjures the long history of the visionaries, stargazers, builders, and adventurers who sent Apollo 11 on its legendary voyage.From the wisdom of the Babylonians to the intrigues of the Cold War, from the otherworldly discoveries of Galileo to the dark legacy of Nazi atrocities, from the exhilarating trajectories of astronauts―recounted in their own words―to the unsung brilliance of engineers working behind the scenes, Moonbound captures the grand arc of the Space Age in a graphic history of unprecedented scope and profound lyricism.

    Corporations & government agencies around the world are pouring billions into achieving AI’s Holy Grail—human-level intelligence. Once AI has attained it, scientists argue, it will have survival drives much like our own. We may be forced to compete with a rival more cunning, more powerful & more alien than we can imagine. Thru profiles of tech visionaries, industry watchdogs & groundbreaking AI systems, James Barrat's Our Final Invention explores the perils of the heedless pursuit of advanced AI. Until now, human intelligence has had no rival. Can we coexist with beings whose intelligence dwarfs our own? Will they allow us to?

    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.

    ROCKET SCIENTIST KILLED IN PASADENA EXPLOSIONscreamed the headline of the Los Angeles Times. John Parsons, a maverick rocketeer who helped transform the rocket from a derided sci-fi plot line into a reality, was at first mourned as a scientific prodigy. But reporters soon uncovered a more shocking story: Parsons had been a devotee of black magic. George Pendle re-creates the world of John Parsons in this dazzling portrait of prewar superstition, cold war paranoia, and futuristic possibility. Fueled by childhood dreams of space flight, Parsons was a leader of the motley band of enthusiastic young men who founded the Jet Propulsion Laboratory, a cornerstone of the American space program. But Parsons's wild imagination also led him into the occult- for if he could make rocketry a reality, why not magic? With a cast of characters including Howard Hughes, L. Ron Hubbard, and Robert Heinlein, Strange Angel explores the unruly consequences of genius.

    That collaboration would mark the dawn of modern science . . . and end in murder.Johannes Kepler changed forever our understanding of the universe with his three laws of planetary motion. He demolished the ancient model of planets moving in circular orbits and laid the foundation for the universal law of gravitation, setting physics on the course of revelation it follows to this day. Kepler was one of the greatest astronomers of all time. Yet if it hadn't been for the now lesser-known Tycho Brahe, the man for whom Kepler apprenticed, Kepler would be a mere footnote in today's science books. Brahe was the Imperial Mathematician at the court of the Holy Roman Emperor in Prague and the most famous astronomer of his era. He was one of the first great systematic empirical scientists and one of the earliest founders of the modern scientific method. His forty years of planetary observations—an unparalleled treasure of empirical data—contained the key to Kepler's historic breakthrough. But those observations would become available to Kepler only after Brahe's death. This groundbreaking history portrays the turbulent collaboration between these two astronomers at the turn of the seventeenth century and their shattering discoveries that would mark the transition from medieval to modern science. But that is only half the story. Based on recent forensic evidence (analyzed here for the first time) and original research into medieval and Renaissance alchemy—all buttressed by in-depth interviews with leading historians, scientists, and medical specialists—the authors have put together shocking and compelling evidence that Tycho Brahe did not die of natural causes, as has been believed for four hundred years. He was systematically poisoned—most likely by his assistant, Johannes Kepler. An epic tale of murder and scientific discovery, Heavenly Intrigue reveals the dark side of one of history’s most brilliant minds and tells the story of court politics, personal intrigue, and superstition that surrounded the protean invention of two great astronomers and their quest to find truth and beauty in the heavens above.

    Alongside his explorations of ancient Egypt's monuments and gods, Brunton encounters a variety of occultists, fakirs, and dervishes, and even manages to become initiated into the deadly art of snake charming. His frank interviews with Muslim leaders remain relevant today, and his description of the Hajj reflects the beauty and inspiring faith of Mohammad's true followers. Brunton's journey to discover the furthest reaches of what the mind and body are capable of--and to distinguish various forms of yoga and magic from true spirituality--lead him to the myth of Osiris and to the mystery that is the Sphinx itself. In the end, Brunton turns his attention to his own spiritual path, connecting all of his experiences into a single discovery: that we are more than the body and that the freedom of our spirit can be experienced here and now. This new edition has been updated to incorporate Brunton's final revisions and includes an introduction by the Paul Brunton Philosophic Foundation.  "Paul Brunton was a great original and got to a place of personal evolution that illumines the pathways of a future humanity." --Jean Houston, author of A Passion for the Possible and A Mythic Life"Any serious man or woman in search of spiritual ideas will find a surprising challenge and an authentic source of inspiration and intellectual nourishment in the writings of Paul Brunton."--Jacob Needleman, author of What is God? From the Trade Paperback edition.

    While Sputnik immediately shocked the world, its long-term impact was even greater, for it profoundly changed the shape of the twentieth Century.Washington journalist Paul Dickson chronicles the dramatic events and developments leading up to and emanating from the Sputnik's launch a story that can only now be fully told with the recent release of previously classified documents. Sputnik offers a fascinating profile of the early American and Soviet space programs and a strikingly revised picture of the politics and personalities behind the facade of American's fledgling efforts to get into space.Although Sputnik was unmanned, its story is intensely human. Sputnik owed its success to many people, from the earlier visionary Konstantin Tsiolkovsky, whose rocket theories were ahead of their time, to the Soviet spokesmen strategically positioned around the world on the day the satellite was launched, who created one of the greatest public-relations events of all time. It’s chief designer, however the brillant Sergei Korolev remained a Soviet state secret until after his death.Equally hidden from view was the political intrigue dominating America's early space program, as the military services jockeyed for control and identity in a peacetime world. For years, former Nazi Wernher von Braun, who ran the U.S. Army's missile program, lobbied for his rocket team to be handed responsibility for the first Earth-orbiting satellite. He was outraged that Sputnik beat him and America into space. President Eisenhower, though, was secretly pleased that the Russians had launched first, because by orbiting over the United States, Sputnik established the principle of “freedom of space” that could justify the spy satellites he thought essential to monitor Soviet missile buildup. As Dickson reveals, Eisenhower was, in fact, much more a master of the Sputnik crisis than he appeared to be at the time and in subsequent accounts.

    It is our twenty-first century New World; its explorers robots, shipped 350 million miles from Earth to uncover the distant planet’s secrets.Its most recent scout is Curiosity—a one-ton, Jeep-sized nuclear-powered space laboratory—which is now roving the Martian surface to determine whether the red planet has ever been physically capable of supporting life. In Red Rover, geochemist Roger Wiens, the principal investigator for the ChemCam laser instrument on the rover and veteran of numerous robotic NASA missions, tells the unlikely story of his involvement in sending sophisticated hardware into space, culminating in the Curiosity rover's amazing journey to Mars.In so doing, Wiens paints the portrait of one of the most exciting scientific stories of our time: the new era of robotic space exploration. Starting with NASA’s introduction of the Discovery Program in 1992, scrappier, more nimble missions became the order of the day, as manned missions were confined to Earth orbit, and behemoth projects went extinct. This strategic shift presented huge scientific opportunities, but tight budgets meant that success depended more than ever on creative engineering and human ingenuity. Beginning with the Genesis mission that launched his career, Wiens describes the competitive, DIY spirit of these robotic enterprises, from conception to construction, from launch to heart-stopping crashes and smooth landings.An inspiring account of the real-life challenges of space exploration, Red Rover vividly narrates what goes into answering the question: is there life elsewhere in the universe?

    Two tiny pits located inside the nostril, long thought to be vestigial, Jacobson's Organ may in fact be an intrinsic part of our mammalian senses. In this entertaining and informative book, Watson rescues our most underappreciated sense from obscurity. He brings to light new evidence that this evolutionary apparatus, discovered in 1811, is the pheromonal mechanism that triggers the areas of the brain affecting awareness, emotion, and sexual behavior. This highly refined sense can help us determine everything from the suitability of potential mates to identifying offspring, and offers insight into how, why, and what we remember. Filled with surprising and delightful anecdotes, Jacobson's Organ sniffs out the scientific truths behind a wide range of phenomena and behaviors in the plant, animal, and human worlds.

    Generations have grown up with Cilla's music, TV shows, and performances. But how much do we really know about 'the girl with the bright red hair and the jet black voice'? What's It All About? is Cilla's own story, told for the first time ever. It's the story of a woman who has worked ceaselessly to stay at the top for forty years despite setbacks and personal tragedy; a life of incredible highs and terrible lows. In this deeply personal autobiography she tells her unique story in intimate and vivid detail for the very first time. This is the real Cilla Black.