Like many others, I feel like I have learned more in the last couple of years studying Bitcoin than I have during two decades of formal education. The following lessons are a distillation of what I’ve learned. First published as an article series titled “What I’ve Learned From Bitcoin,” what follows can be seen as a third edition of the original series. Like Bitcoin, these lessons aren’t a static thing. I plan to work on them periodically, releasing updated versions and additional material in the future.Bitcoin is an inexhaustible teacher, which is why I do not claim that these lessons are all-encompassing or complete. They are a reflection of my personal journey down the rabbit hole. There are many more lessons to be learned, and every person will learn something different from entering the world of Bitcoin. I hope that you will find these lessons useful and that the process of learning them by reading won’t be as arduous and painful as learning them firsthand.

    This fascinating book traces what was a massive accomplishment right from the early launches through manned orbital spaceflights, detailing each step. Out of the battlefields of World War II came the gifted German engineers and designers who developed the V-2 rocket, which evolved into the powerful Saturn V booster that propelled men to the Moon. David Woods tells this exciting story, starting from America 's postwar astronautical research facilities. The techniques and procedures developed have been recognised as an example of human exploration at its greatest, demonstrating a peak of technological excellence.

    Invented to frighten evil spirits rather than fuel guns or bombs—neither of which had been thought of yet—their simple mixture of saltpeter, sulfur, and charcoal went on to make the modern world possible. As word of its explosive properties spread from Asia to Europe, from pyrotechnics to battleships, it paved the way for Western exploration, hastened the end of feudalism and the rise of the nation state, and greased the wheels of the Industrial Revolution.With dramatic immediacy, novelist and journalist Jack Kelly conveys both the distant time in which the �devil’s distillate” rose to conquer the world, and brings to rousing life the eclectic cast of characters who played a role in its epic story, including Michelangelo, Edward III, Vasco da Gama, Cortés, Guy Fawkes, Alfred Nobel, and E. I. DuPont. A must-read for history fans and military buffs alike, Gunpowder brings together a rich terrain of cultures and technological innovations with authoritative research and swashbuckling style.

    Find out what works and what doesnt, which turbo is right for your needs, and what type of set-up will give you that extra boost. Bell shows you how to select and install the right turbo, how to prep your engine, test the systems, and integrate a turbo with EFI or carbureted engine.

    You may not like Facebook, but you can't deny its success. And to a large degree, that success stems from the "move fast" ethos. The entire culture of Facebook is built for speed.Move Fast is an exploration of modern software strategies and tactics through the lens of Facebook. Relying on in-depth interviews with more than two dozen Facebook engineers, this book explores the product strategy, cultural principles, and technologies that made Facebook the dominant social networking company. Most importantly, Move Fast investigates how you can apply those strategies to your creative projects.It's not easy to build a software company, but once you know how to move fast, your company will be prepared to build a strategy that benefits from the world's rapid changes, rather than suffering from them.

    The difficulty of doing without fossil fuels is daunting, possibly even insurmountable. So there is an urgent need to rethink our responses to the crisis. To meet that need, a small but increasingly influential group of scientists is exploring proposals for planned human intervention in the climate system: a stratospheric veil against the sun, the cultivation of photosynthetic plankton, fleets of unmanned ships seeding the clouds. These are the technologies of geoengineerin--and as Oliver Morton argues in this visionary book, it would be as irresponsible to ignore them as it would be foolish to see them as a simple solution to the problem."The Planet Remade" explores the history, politics, and cutting-edge science of geoengineering. Morton weighs both the promise and perils of these controversial strategies and puts them in the broadest possible context. The past century's changes to the planet--to the clouds and the soils, to the winds and the seas, to the great cycles of nitrogen and carbon--have been far more profound than most of us realize. Appreciating those changes clarifies not just the scale of what needs to be done about global warming, but also our relationship to nature.Climate change is not just one of the twenty-first century's defining political challenges. Morton untangles the implications of our failure to meet the challenge of climate change and reintroduces the hope that we might. He addresses the deep fear that comes with seeing humans as a force of nature, and asks what it might mean--and what it might require of us--to try and use that force for good.

    New co-authors--Irl Bivens and Stephen Davis--from Davidson College; both distinguished educators and writers.* More emphasis on graphing calculators in exercises and examples, including CAS capabilities of graphing calculators.* More problems using tabular data and more emphasis on mathematical modeling.

    Innovator. Inventor. These three words sum up Alexander Graham Bell, one of the greatest scientific men of his era. He is most famous for the invention of the telephone, a device which he predicted would transform human society. And it did. But the telephone is just one of the many innovations and inventions that Bell brought into being. Inside you will read about... - Childhood - Emigration to North America - The Bell Telephone Company - The Race to Save the President - A Rival to the Wright Brothers - Later Years and Death And much more! A man who epitomizes the word visionary, Alexander Graham Bell predicted the use of light as a medium for transmitting information and how humanity would be transformed by flight. This is his story.

    This new edition of the bible of bicycle builders and bicyclists provides just about everything you could want to know about the history of bicycles, how human beings propel them, what makes them go faster, and what keeps them from going even faster. The scientific and engineering information is of interest not only to designers and builders of bicycles and other human-powered vehicles but also to competitive cyclists, bicycle commuters, and recreational cyclists.The third edition begins with a brief history of bicycles and bicycling that demolishes many widespread myths. This edition includes information on recent experiments and achievements in human-powered transportation, including the ultimate human- powered vehicle, in which a supine rider in a streamlined enclosure steers by looking at a television screen connected to a small camera in the nose, reaching speeds of around 80 miles per hour. It contains completely new chapters on aerodynamics, unusual human-powered machines for use on land and in water and air, human physiology, and the future of bicycling. This edition also provides updated information on rolling drag, transmission of power from rider to wheels, braking, heat management, steering and stability, power and speed, and materials. It contains many new illustrations.

    With concerns about catastrophic global warming mounting, it is vital that we examine all our energy options. "Power to Save the World "describes the efforts of one determined woman, Gwyneth Cravens, initially a skeptic about nuclear power, as she spends nearly a decade immersing herself in the subject. She teams up with a leading expert in risk assessment and nuclear safety who is also a committed environmentalist to trace the path of uranium--the source of nuclear fuel--from start to finish. As we accompany them on visits to mines as well as to experimental reactor laboratories, fortress-like power plants, and remote waste sites normally off-limits to the public, we come to see that we already have a feasible way to address the causes of global warming on a large scale. On the nuclear tour, Cravens converses with scientists from many disciplines, public health and counterterrorism experts, engineers, and researchers who study both the harmful and benign effects of radiation; she watches remote-controlled robotic manipulators unbolt a canister of spent uranium fuel inside a "hot cell" bathed in eerie orange light; observes the dark haze from fossil-fuel combustion obscuring once-pristine New Mexico skies and the leaky, rusted pipes and sooty puddles in a coal-fired plant; glimpses rainbows made by salt dust in the deep subterranean corridors of a working nuclear waste repository. She refutes the major arguments against nuclear power one by one, making clear, for example, that a stroll through Grand Central Terminal exposes a person to more radiation than a walk of equal length through a uranium mine; that average background radiation around Chernobyl and in Hiroshima is lower than in Denver; that there are no "cancer clusters" near nuclear facilities; that terrorists could neither penetrate the security at an American nuclear plant nor make an atomic bomb from its fuel; that nuclear waste can be--and already is--safely stored; that wind and solar power, while important, can meet only a fraction of the demand for electricity; that a coal-fired plant releases more radiation than a nuclear plant and also emits deadly toxic waste that kills thousands of Americans a month; that in its fifty-year history American nuclear power has not caused a single death. And she demonstrates how, time and again, political fearmongering and misperceptions about risk have trumped science in the dialogue about the feasibility of nuclear energy. In the end, we see how nuclear power has been successfully and economically harnessed here and around the globe to become the single largest displacer of greenhouse gases, and how its overall risks and benefits compare with those of other energy sources."""Power to Save the World "is an eloquent, convincing argument for nuclear power as a safe energy source and an essential deterrent to global warming.

         Ronan O'Gara has been at the heart of Munster and Irish rugby for the past fifteen years. Now, as he comes to the end of a glittering playing career, it is time for him to reflect on those many successes and occasional failures with the straight-talking attitude that has become his trademark. Never one to shy away from the truth, the result is Ronan O'Gara: Unguarded.     Packed full of anecdotes and analysis of the teammates O'Gara has been proud to share the shirt with, and of the coaches he has played under -- often in controversial circumstances -- this is the definitive record of an era when Munster rose to triumph in Europe, and Ireland to win the Grand Slam, before crashing down to earth again. It is simply the must-have rugby book of the year.

    By scale, we mean having numbers of users in the millions and being built by large engineering teams.For mobile engineers, this book is a blueprint for modern app engineering approaches. For non-mobile engineers and managers, it is a resource with which to build empathy and appreciation for the complexity of world-class mobile engineering.

    What makes an operating system modern? According to author Andrew Tanenbaum, it is the awareness of high-demand computer applications--primarily in the areas of multimedia, parallel and distributed computing, and security. The development of faster and more advanced hardware has driven progress in software, including enhancements to the operating system. It is one thing to run an old operating system on current hardware, and another to effectively leverage current hardware to best serve modern software applications. If you don't believe it, install Windows 3.0 on a modern PC and try surfing the Internet or burning a CD. Readers familiar with Tanenbaum's previous text, Operating Systems, know the author is a great proponent of simple design and hands-on experimentation. His earlier book came bundled with the source code for an operating system called Minux, a simple variant of Unix and the platform used by Linus Torvalds to develop Linux. Although this book does not come with any source code, he illustrates many of his points with code fragments (C, usually with Unix system calls). The first half of Modern Operating Systems focuses on traditional operating systems concepts: processes, deadlocks, memory management, I/O, and file systems. There is nothing groundbreaking in these early chapters, but all topics are well covered, each including sections on current research and a set of student problems. It is enlightening to read Tanenbaum's explanations of the design decisions made by past operating systems gurus, including his view that additional research on the problem of deadlocks is impractical except for "keeping otherwise unemployed graph theorists off the streets." It is the second half of the book that differentiates itself from older operating systems texts. Here, each chapter describes an element of what constitutes a modern operating system--awareness of multimedia applications, multiple processors, computer networks, and a high level of security. The chapter on multimedia functionality focuses on such features as handling massive files and providing video-on-demand. Included in the discussion on multiprocessor platforms are clustered computers and distributed computing. Finally, the importance of security is discussed--a lively enumeration of the scores of ways operating systems can be vulnerable to attack, from password security to computer viruses and Internet worms. Included at the end of the book are case studies of two popular operating systems: Unix/Linux and Windows 2000. There is a bias toward the Unix/Linux approach, not surprising given the author's experience and academic bent, but this bias does not detract from Tanenbaum's analysis. Both operating systems are dissected, describing how each implements processes, file systems, memory management, and other operating system fundamentals. Tanenbaum's mantra is simple, accessible operating system design. Given that modern operating systems have extensive features, he is forced to reconcile physical size with simplicity. Toward this end, he makes frequent references to the Frederick Brooks classic The Mythical Man-Month for wisdom on managing large, complex software development projects. He finds both Windows 2000 and Unix/Linux guilty of being too complicated--with a particular skewering of Windows 2000 and its "mammoth Win32 API." A primary culprit is the attempt to make operating systems more "user-friendly," which Tanenbaum views as an excuse for bloated code. The solution is to have smart people, the smallest possible team, and well-defined interactions between various operating systems components. Future operating system design will benefit if the advice in this book is taken to heart. --Pete Ostenson

    It contains appox. 200 problems from various competitive examinations (GATE, IES, IAS) have been included. The author does hope that with this, the utility of the book will be further enhanced.

    As huge as the Pantheon of Rome and as heavy as the Statue of Liberty, this magnificent instrument is so precisely built that its seventeen-foot mirror was hand-polished to a tolerance of 2/1,000,000 of an inch. The telescope's construction drove some to the brink of madness, made others fearful that mortals might glimpse heaven, and transfixed an entire nation. Ronald Florence weaves into his account of the creation of "the perfect machine" a stirring chronicle of the birth of Big Science and a poignant rendering of an America mired in the depression yet reaching for the stars.