Three Guides in One! Identification, Values, Lapidary UsesDesigned with beginners in mind, yet filled with valuable technical information for advanced collectors, "Collecting Rocks, Gems and Minerals" takes you from being just someone who appreciates rocks to a true "collector."Easy-to-use, quick reference format arranged by category and color of stoneCovers both lapidary and mineral display materialsProvides values and tips for locating, buying and collectingIncludes organics such as amber, bone, coral, pearl and shellLists chemical group, system, hardness, opacity, fracture, specific gravity and moreContains more than 650 full-color photosForeword by Johann Zenz, world renowned agate expert, author and lecturer

    Brian Arthur puts forth the first complete theory of the origins and evolution of technology, in a major work that achieves for the invention of new technologies what Darwin’s theory achieved for the emergence of new species. Brian Arthur is a pioneer of complexity theory and the discoverer of the highly influential "theory of increasing returns," which took Silicon Valley by storm, famously explaining why some high-tech companies achieve breakaway success. Now, in this long-awaited and ground-breaking book, he solves the great outstanding puzzle of technology—where do transformative new technologies come from?—putting forth the first full theory of how new technologies emerge and offering a definitive answer to the mystery of why some cultures—Silicon Valley, Cambridge, England in the 1920s—are so extraordinarily inventive. He has discovered that rather than springing from insight moments of individual genius, new technologies arise in a process akin to evolution. Technology evolves by creating itself out of itself, much as a coral reef builds itself from activities of small organisms. Drawing on a wealth of examples, from the most ancient to cutting-edge inventions of today, Arthur takes readers on a delightful intellectual journey, bringing to life the wonders of this process of technological evolution. The Nature of Technology is the work of one of our greatest thinkers at the top of his game, composing a classic for our times that is sure to generate wide acclaim.

    Here the trials and triumphs of the early Muslims as individuals are well-portrayed. Their various paths to Islam - sometimes direct, sometimes long and tortuous, their devotion to the noble Prophet, their endeavours in peace time and their exploits in war - all serve to cast them in a heroic mould. This is the first of two (formerly published as a series of three) books based on original Arabic sources and written in a style that is lively and often gripping. The lives of the Sahabah or Companions of the Prophet, may God bless him and grant him peace, is a rich storehouse of knowledge, guidance and inspiration. The men and women whose stories are told here helped to lay the foundations of a new world order, and it is only fitting that they should be more widely known.

    An airliner capable of flying at more than twice the speed of sound, the Concorde had completed 25 years of successful flights, whisking wealthy passengers--from diplomats to rock stars to corporate titans--between continents on brief and glamorous flights. Yet on this fateful day, the chartered Concorde jet, en route to America, crashed and killed all 109 passengers and crew onboard and four people on the ground. Urgent questions immediately arose as investigators scrambled to discover what had gone wrong. What caused the fire? Could it have been prevented? And, most urgently, was the Concorde safe to fly? Last Days of the Concorde addresses these issues and many more, offering a fascinating insider's look at the dramatic disaster, the hunt for clues, and the systemic overhauls that followed the crash.

    This Self-Paced Training Kit is designed to help maximize your performance on 70-680, the required exam for the Microsoft Certified Technology Specialist (MCTS): Windows 7, Configuration certification.This 2-in-1 kit includes the official Microsoft study guide, plus practice tests on CD to help you assess your skills. It comes packed with the tools and features exam candidates want most—including in-depth, self-paced training based on final exam content; rigorous, objective-by-objective review; exam tips from expert, exam-certified authors; and customizable testing options. It also provides real-world scenarios, case study examples, and troubleshooting labs to give you the skills and expertise you can use on the job.Work at your own pace through the lessons and lab exercises. This official study guide covers installing, upgrading, and migrating to Windows 7; configuring network connectivity, applications, and devices; implementing backup and recovery; configuring User Account Control (UAC), mobility options, and new features such as DirectAccess and BranchCache; and managing system updates.Then assess yourself using the 200 practice questions on CD, featuring multiple customizable testing options to meet your specific needs. Choose timed or untimed testing mode, generate random tests, or focus on discrete objectives. You get detailed explanations for right and wrong answers—including pointers back to the book for further study. You also get an exam discount voucher—making this kit an exceptional value and a great career investment.

    'Here Comes Everybody' is an examination of how the spread of new forms of social interaction enabled by technology is changing the way humans form and exist within groups, with profound long-term economic and social effects, for good and for ill.

    The concepts and techniques described are the actual ones used by real game studios like Electronic Arts and Naughty Dog. The examples are often grounded in specific technologies, but the discussion extends way beyond any particular engine or API. The references and citations make it a great jumping off point for those who wish to dig deeper into any particular aspect of the game development process.Intended as the text for a college level series in game programming, this book can also be used by amateur software engineers, hobbyists, self-taught game programmers, and existing members of the game industry. Junior game engineers can use it to solidify their understanding of game technology and engine architecture. Even senior engineers who specialize in one particular field of game development can benefit from the bigger picture presented in these pages.

    It contains accounts by Richard 'The Iceman' Kuklinski, the contract killer who claimed to have murdered over 200 people in a career lasting 43 years.

    . .the World War II flying ace who shot down a Messerschmitt jet with a prop-driven P-51 Mustang . . .the hero who defined a certain quality that all hotshot fly-boys of the postwar era aimed to achieve: the right stuff.Now Chuck Yeager tells his whole incredible life story with the same "wide-open, full throttle" approach that has marked his astonishing career.  What it was really like enaging in do-or-die dogfights over Nazi Europe.  How after being shot over occupied France, Yeager somehow managed to escape.  The amazing behind-the-scenes story of smashing the sound barrier despite cracked ribs from a riding accident days before.The entire story is here, in Yeager's own words, and in wondeful insights from his wife and those friends and colleagues who have known him best.  It is the personal and public story of a man who settled for nothing less than excellence, a one-of-a-kind portrait of a true American hero.

    It will enable making a design for almost any kind of building, or any part of the built environment. ‘Patterns,’ the units of this language, are answers to design problems: how high should a window sill be?; how many stories should a building have?; how much space in a neighborhood should be devoted to grass and trees?More than 250 of the patterns in this language are outlined, each consisting of a problem statement, a discussion of the problem with an illustration, and a solution. As the authors say in their introduction, many of the patterns are archetypal, so deeply rooted in the nature of things that it seems likely that they will be a part of human nature and human action as much in five hundred years as they are today.A Pattern Language is related to Alexander’s other works in the Center for Environmental Structure series: The Timeless Way of Building (introductory volume) and The Oregon Experiment.