Who invented zero? Why are there 60 seconds in a minute? Can a butterfly's wings really cause a storm on the far side of the world? In 50 concise essays, Professor Tony Crilly explains the mathematical concepts that allow use to understand and shape the world around us.

    From Sex, Drugs, and Cocoa Puffs; Chuck Klosterman IV; and Eating the Dinosaur, these essays are now available in this ebook collection for fans of Klosterman’s writing on pop music.

    I write poetry... I believe poetry is a primal impulse within all of us. I believe we are all capable of it and furthermore that a small, often ignored corner of us positively yearns to try it. —Stephen Fry, The Ode Less Travelled Stephen Fry believes that if one can speak and read English, one can write poetry. Many of us have never been taught to read or write poetry and think of it as a mysterious and intimidating form. Or, if we have been taught, we remember uncomfortable silence when an English teacher invited the class to "respond" to a poem. In The Ode Less Travelled, Fry sets out to correct this problem by giving aspiring poets the tools and confidence they need to write poetry for pleasure. Fry is a wonderfully engaging teacher and writer of poetry himself, and he explains the various elements of poetry in simple terms, without condescension. His enjoyable exercises and witty insights introduce the concepts of Metre, Rhyme, Form, Diction, and Poetics. Aspiring poets will learn to write a sonnet, on ode, a villanelle, a ballad, and a haiku, among others. Along the way, he introduces us to poets we've heard of, but never read. The Ode Less Travelled is a lively celebration of poetry that makes even the most reluctant reader want to pick up a pencil and give it a try. BACKCOVER: Advanced Praise: “Delightfully erudite, charming and soundly pedagogical guide to poetic form… Fry has created an invaluable and highly enjoyable reference book.” —Publishers Weekly “A smart, sane and entertaining return to the basics… If you like Fry’s comic manner… this book has a lot of charm… People entirely fresh to the subject could do worse than stick with his cheerful leadership.” —The Telegraph (UK) “…intelligent and informative, a worthy enterprise well executed.” —Observer (UK) "If you learn how to write a sonnet, and Fry shows you how, you may or may not make a poem. But you will unlock the stored wisdom of the form itself." —Grey Gowrie, The Spectator (UK) “…intelligent and informative, a worthy enterprise well executed.” —Observer (UK)

    Every massive star leaves behind a black hole when it dies, and every galaxy harbors a supermassive black hole at its center. Frighteningly enigmatic, these dark giants continue to astound even the scientists who spend their careers studying them. Which came first, the galaxy or its central black hole? What happens if you travel into one—instant death or something weirder? And, perhaps most important, how can we ever know anything for sure about black holes when they destroy information by their very nature?In Einstein’s Monsters, distinguished astronomer Chris Impey takes readers on an exploration of these and other questions at the cutting edge of astrophysics, as well as the history of black holes’ role in theoretical physics—from confirming Einstein’s equations for general relativity to testing string theory. He blends this history with a poignant account of the phenomena scientists have witnessed while observing black holes: stars swarming like bees around the center of our galaxy; black holes performing gravitational waltzes with visible stars; the cymbal clash of two black holes colliding, releasing ripples in space-time.Clear, compelling, and profound, Einstein’s Monsters reveals how our comprehension of black holes is intrinsically linked to how we make sense of the universe and our place within it. From the small questions to the big ones—from the tiniest particles to the nature of space-time itself—black holes might be the key to a deeper understanding of the cosmos.

    Essential System Administration provides a clear, concise, practical guide to the real-world issues that anyone responsible for a Unix system faces daily.The new edition of this indispensable reference has been fully updated for all the latest operating systems. Even more importantly, it has been extensively revised and expanded to consider the current system administrative topics that administrators need most. Essential System Administration,3rd Edition covers: DHCP, USB devices, the latest automation tools, SNMP and network management, LDAP, PAM, and recent security tools and techniques.Essential System Administration is comprehensive. But what has made this book the guide system administrators turn to over and over again is not just the sheer volume of valuable information it provides, but the clear, useful way the information is presented. It discusses the underlying higher-level concepts, but it also provides the details of the procedures needed to carry them out. It is not organized around the features of the Unix operating system, but around the various facets of a system administrator's job. It describes all the usual administrative tools that Unix provides, but it also shows how to use them intelligently and efficiently.Whether you use a standalone Unix system, routinely provide administrative support for a larger shared system, or just want an understanding of basic administrative functions, Essential System Administration is for you. This comprehensive and invaluable book combines the author's years of practical experience with technical expertise to help you manage Unix systems as productively and painlessly as possible.

    Sarno saved me from a life of pain.” — Howard Stern  The New York Times bestseller that has helped thousands leverage the mind-body connection to heal lower back pain and live pain free—without drugs, surgery, or physical therapy.  Offering a surprising, noninvasive solution to an epidemic of pain, Dr. John E. Sarno’s research on TMS (Tension Myoneural Syndrome) reveals that stress, anxiety and other psychological factors, not structural abnormalities, are the root cause of chronic pain. TMS develops as a result of repressed emotions which trigger tension in the body and deprive muscles and nerves of oxygen. The solution? Recognize the emotional roots of your TMS and sever the connection between mental and physical pain. With Dr. Sarno’s expert guidance you will learn:How the mind-body connection can permanently heal shoulder, neck, and lower back painHow accepting negative emotions like anger, anxiety, fear, or grief can reverse physical symptomsHow we condition ourselves to think back pain is inevitableWhy you should resume physical activity as soon as possibleSharing case histories and the results of his extensive, groundbreaking research, Dr. Sarno’s life-changing insights show readers how to banish back pain and reclaim their lives for good.

    How can we catch schools that cheat on standardized tests? How does Netflix know which movies you’ll like? What is causing the rising incidence of autism? As best-selling author Charles Wheelan shows us in Naked Statistics, the right data and a few well-chosen statistical tools can help us answer these questions and more.For those who slept through Stats 101, this book is a lifesaver. Wheelan strips away the arcane and technical details and focuses on the underlying intuition that drives statistical analysis. He clarifies key concepts such as inference, correlation, and regression analysis, reveals how biased or careless parties can manipulate or misrepresent data, and shows us how brilliant and creative researchers are exploiting the valuable data from natural experiments to tackle thorny questions.And in Wheelan’s trademark style, there’s not a dull page in sight. You’ll encounter clever Schlitz Beer marketers leveraging basic probability, an International Sausage Festival illuminating the tenets of the central limit theorem, and a head-scratching choice from the famous game show Let’s Make a Deal—and you’ll come away with insights each time. With the wit, accessibility, and sheer fun that turned Naked Economics into a bestseller, Wheelan defies the odds yet again by bringing another essential, formerly unglamorous discipline to life.

    In Empires of Light, historian Jill Jonnes portrays this extraordinary trio and their riveting and ruthless world of cutting-edge science, invention, intrigue, money, death, and hard-eyed Wall Street millionaires. At the heart of the story are Thomas Alva Edison, the nation’s most famous and folksy inventor, creator of the incandescent light bulb and mastermind of the world’s first direct current electrical light networks; the Serbian wizard of invention Nikola Tesla, elegant, highly eccentric, a dreamer who revolutionized the generation and delivery of electricity; and the charismatic George Westinghouse, Pittsburgh inventor and tough corporate entrepreneur, an industrial idealist who in the era of gaslight imagined a world powered by cheap and plentiful electricity and worked heart and soul to create it. Edison struggled to introduce his radical new direct current (DC) technology into the hurly-burly of New York City as Tesla and Westinghouse challenged his dominance with their alternating current (AC), thus setting the stage for one of the eeriest feuds in American corporate history, the War of the Electric Currents. The battlegrounds: Wall Street, the 1893 Chicago World’s Fair, Niagara Falls, and, finally, the death chamber - Jonnes takes us on the tense walk down a prison hallway and into the sunlit room where William Kemmler, convicted ax murderer, became the first man to die in the electric chair. Empires of Light is the gripping history of electricity, the “mysterious fluid,” and how the fateful collision of Edison, Tesla, and Westinghouse left the world utterly transformed.

    Authors Drew Conway and John Myles White help you understand machine learning and statistics tools through a series of hands-on case studies, instead of a traditional math-heavy presentation.Each chapter focuses on a specific problem in machine learning, such as classification, prediction, optimization, and recommendation. Using the R programming language, you'll learn how to analyze sample datasets and write simple machine learning algorithms. "Machine Learning for Hackers" is ideal for programmers from any background, including business, government, and academic research.Develop a naive Bayesian classifier to determine if an email is spam, based only on its textUse linear regression to predict the number of page views for the top 1,000 websitesLearn optimization techniques by attempting to break a simple letter cipherCompare and contrast U.S. Senators statistically, based on their voting recordsBuild a "whom to follow" recommendation system from Twitter data

    Editors are the subject of adoration and worship, or of scorn and ridicule, depending upon whether the topic of discussion is your editor or someone else's.vi has been the standard editor for close to 30 years. Popular on Unix and Linux, it has a growing following on Windows systems, too. Most experienced system administrators cite vi as their tool of choice. And since 1986, this book has been the guide for vi. However, Unix systems are not what they were 30 years ago, and neither is this book. While retaining all the valuable features of previous editions, the 7th edition of Learning the vi and vim Editors has been expanded to include detailed information on vim, the leading vi clone. vim is the default version of vi on most Linux systems and on Mac OS X, and is available for many other operating systems too. With this guide, you learn text editing basics and advanced tools for both editors, such as multi-window editing, how to write both interactive macros and scripts to extend the editor, and power tools for programmers -- all in the easy-to-follow style that has made this book a classic.Learning the vi and vim Editors includes:A complete introduction to text editing with vi:How to move around vi in a hurry Beyond the basics, such as using buffers vi's global search and replacement Advanced editing, including customizing vi and executing Unix commandsHow to make full use of vim: Extended text objects and more powerful regular expressions Multi-window editing and powerful vim scripts How to make full use of the GUI version of vim, called gvim vim's enhancements for programmers, such as syntax highlighting, folding and extended tags Coverage of three other popular vi clones -- nvi, elvis, and vile -- is also included. You'll find several valuable appendixes, including an alphabetical quick reference to both vi and ex mode commands for regular vi and for vim, plus an updated appendix on vi and the Internet. Learning either vi or vim is required knowledge if you use Linux or Unix, and in either case, reading this book is essential. After reading this book, the choice of editor will be obvious for you too.

    Known for his photography, his teaching, and his ability to connect with photographers, Zack has long had an "open door" approach to discussing his career-the ups and the downs-and in so doing has provided a straightforward and candid look inside the industry. By consistently showing great work and offering helpful advice, he has built a large, loyal readership that looks to him for guidance in navigating the currents of a difficult and dynamic industry. Now, Zack finds yet another way to cut through the noise and offer truly valuable information to those struggling to make their way through the twists and turns of an ever-changing landscape.In Photography Q&A, Zack answers over 100 questions that he fielded directly from the public. These are questions that range across all aspects of the photo industry: gear, marketing, street photography, vision, pricing, branding, light, models, work/life balance, technical advice, and much more. From how to "put yourself out there" and start to get jobs, to how to get paid for those jobs when the client is slow to cut the check-and everything in between- Photography Q&A answers many of the pressing questions that photographers are asking, but until now have not been addressed. The book also includes intermittent "Visual Intermission" sections-where Zack discusses individual images that were milestones in his development as a photographer-as well as worksheets on topics such as pricing and costs that help photographers to "know their numbers."With all this material, and with insightful, honest answers that come straight from Zack's experience as a photographer who has seen it all (or at least a lot of it), Photography Q&A is an essential resource for any photographer looking for the real answers to the real questions in the industry today.

    Probably no one felt more disappointment and regret than Allan McDonald, who had warned us not to launch that day. His story tells of loss, grief, and the eventual rebuilding and recovery."--Robert "Hoot" Gibson, former Space Shuttle pilot and commander   "A major contribution to a difficult episode in the history of human spaceflight."--Roger D. Launius, Division of Space History, Smithsonian Institution   “McDonald tells the heartbreaking tale of how he saw his words of warning ignored, and the fateful consequences of that decision.”--Donald C. Elder III, Eastern New Mexico University   On a cold January morning in 1986, NASA launched the Space Shuttle Challenger, despite warnings against doing so by many individuals, including Allan McDonald. The fiery destruction of Challenger on live television moments after launch remains an indelible image in the nation’s collective memory.   In Truth, Lies, and O-Rings, McDonald, a skilled engineer and executive, relives the tragedy from where he stood at Launch Control Center.  As he fought to draw attention to the real reasons behind the disaster, he was the only one targeted for retribution by both NASA and his employer, Morton Thiokol, Inc., makers of the shuttle’s solid rocket boosters. In this whistle-blowing yet rigorous and fair-minded book, McDonald, with the assistance of internationally distinguished aerospace historian James R. Hansen, addresses all of the factors that led to the accident, some of which were never included in NASA’s Failure Team report submitted to the Presidential Commission.  Truth, Lies, and O-Rings is the first look at the Challenger tragedy and its aftermath from someone who was on the inside, recognized the potential disaster, and tried to prevent it. It also addresses the early warnings of very severe debris issues from the first two post-Challenger flights, which ultimately resulted in the loss of Columbia some fifteen years later.

    John's, Antigua; Oranjestad, Aruba; Bridgetown, Barbados; Belize City, Belize; Bermuda; Kralendijk, Bonaire; Calica (Playa del Carmen), Mexico; Cartagena, Colombia; Colon, Panama; Costa Maya, Mexico; Willemstad, Curacao; Roseau, Dominica; Falmouth, Jamaica; Freeport-Lucaya, Bahamas; Grand Cayman, Cayman Islands; Grand Turk, Turks and Caicos Islands; St. George's, Grenada; Pointe-a-Pitre, Guadeloupe; Key West, Florida; La Romana, Dominican Republic; Fort-de-France, Martinique; Montego Bay, Jamaica; Nassau, Bahamas; Charlestown, Nevis; Ocho Rios, Jamaica; Progreso, Mexico; Puerto Limon, Costa Rica; Roatan, Honduras; Samana (Cayo Levantado), Dominican Republic; San Juan, Puerto Rico; Santo Domingo, Domican Republic; Santo Tomas de Castilla, Guatemala; Gustavia, St. Barthelemy; Fredericksted, St. Croix; Cruz Bay, St. John; Basseterre, St. Kitts; Castries, St. Lucia; Philipsburg, St. Maarten; Charlotte Amalie, St. Thomas; Kingstown, St. Vincent; Road Town, Tortola; and The Valley, Virgin Gorda· Covered ports of embarkation: Baltimore, Maryland; Charleston, South Carolina; Fort Lauderdale, Florida; Galveston, Texas; Houston, Texas; Jacksonville, Florida; Miami, Florida; New Orleans, Louisiana; New York, New York; Port Canaveral, Florida; San Juan, Puerto Rico; Tampa, Florida

    Thanks to it, you will be able to UNLEASH the full power of your Amazon Echo, Echo Dot and Amazon Tap. AND you will find my email address at the end of the book, so feel free to ask me any questions you might have about Alexa. What is Amazon Echo Dot and Alexa Let me help you figure out what this this exciting technology is all about, so you can enjoy it too! Amazon Echo is a speaker connected to the internet that you can control with your voice. Alexa is the built-in vocal assistant of Amazon Echo. Alexa lets you play music, control your lights, ask for the weather and more. What you will learn: Step-by-step instructions on how to set up your device Get to know about all the things that Amazon Echo can do Get customized News, Traffic and Weather updates Connect your Google Calendar to your device Everything you need to know about Alexa in a single HIGH-QUALITY book Stream music from your favorite audio sources: iPhone, Android, Spotify, Amazon Music, Pandora, iHeartRadio, TuneIn Get ACTIONABLE ADVICE on how to build your smart home Control your lights, TV and room temperature with your voice Explore the complete list of Alexa-enabled devices organized per category Have fun by playing with 500 Easter Eggs Learn How IFTTT and Yonomi help you to better control your home Get to know the 20 most useful Alexa Skills Learn how Amazon Echo was created Written By An Alexa Lover For (future) Alexa Lovers How to troubleshoot your Echo Learn how Alexa works behind the scenes Explore the future of Alexa And much, much more! This is the only Amazon Echo book you will ever need Get your copy today! This book will save you hours figuring out how Echo works. I am sharing all my hacks so you can go from Beginner to Expert in an hour. I wish that upon reading this book, you will realise this exciting times that we live in. That you will see all the possibilities that the Amazon Echo has to offer. The time for innovation is now, and it is up to you to enjoy it now. Through the book, you will come to see Echo for what it is and what it can be. I am exploring in depth numerous topics such as Playing Music, Building your Smart Home, Using Alexa Skills and more. This book will help save you many hours trying to figure out what the Echo can do. Bonus Sign up to my free weekly newsletter to get the best new Alexa Skills in your inbox. Table of Contents 1. Preface 2. The Genesis of Amazon Echo 3. How Does Alexa Work? 4.

    This book has been designed for people who don't know how to pray yet or those who aren't sure whether they learned correctly or not. In this book you will learn the prayers by reading clear and simple descriptions of what to do along with pictures to make sure you understood correctly. One of the unique features of this book is that it doesn't limit itself to teaching the rituals behind the prayer only. Rather, there is an entire chapter dedicated to learning the meanings behind each statement and action in the prayer.