In 1935, aged 22, he developed the mathematical theory upon which all subsequent stored-program digital computers are modeled.At the outbreak of hostilities with Germany in September 1939, he joined the Government Codebreaking team at Bletchley Park, Buckinghamshire and played a crucial role in deciphering Engima, the code used by the German armed forces to protect their radio communications. Turing's work on the versionof Enigma used by the German navy was vital to the battle for supremacy in the North Atlantic. He also contributed to the attack on the cyphers known as Fish, which were used by the German High Command for the encryption of signals during the latter part of the war. His contribution helped toshorten the war in Europe by an estimated two years.After the war, his theoretical work led to the development of Britain's first computers at the National Physical Laboratory and the Royal Society Computing Machine Laboratory at Manchester University.Turing was also a founding father of modern cognitive science, theorizing that the cortex at birth is an unorganized machine which through training becomes organized into a universal machine or something like it. He went on to develop the use of computers to model biological growth, launchingthe discipline now referred to as Artificial Life.The papers in this book are the key works for understanding Turing's phenomenal contribution across all these fields. The collection includes Turing's declassified wartime Treatise on the Enigma; letters from Turing to Churchill and to codebreakers; lectures, papers, and broadcasts which opened upthe concept of AI and its implications; and the paper which formed the genesis of the investigation of Artifical Life.

    A crucial figure in the creation of our national parks system and a far-seeing prophet of environmental awareness who founded the Sierra Club in 1892, he was also a master of natural description who evoked with unique power and intimacy the untrammeled landscapes of the American West. The Library of America’s Nature Writings collects his most significant and best-loved works in a single volume.The Story of My Boyhood and Youth (1913) is Muir’s memoir of growing up by the sea in Scotland, of coming to America with his family at age eleven, and of his early fascination with the natural world. My First Summer in the Sierra (1911) is his famous account of the spiritual awakening he experienced when, in 1869, he first encountered the mountains and valleys of central California, of which he wrote: “Bathed in such beauty, watching the expressions ever varying on the faces of the mountains, watching the stars, which here have a glory that the lowlander never dreams of, watching the circling seasons, listening to the songs of the waters and winds and birds, would be endless pleasure…. No other place has ever so overwhelmingly attracted me as this hospitable, Godful wilderness.”The natural history classic The Mountains of California (1894) draws on half a lifetime of exploration of the High Sierra country to celebrate and evoke the region’s lakes, forests, flowers, and animals, its glaciers, storms, floods, and geological formations, in a masterpiece of observation and poetic description: “After ten years spent in the heart of it … it still seems to me above all others the Range of Light, the most divinely beautiful of all the mountain-chains I have ever seen.”Stickeen (1909), Muir’s most popular book, is the affectionate story of his adventure with a dog in Alaska. Rounding out the volume is a rich selection of essays—including “Yosemite Glaciers,” “God’s First Temples,” “Snow-Storm on Mount Shasta,” “The American Forests,” and the late appeal “Save the Redwoods”—highlighting various aspects of his career: his exploration of the Grand Canyon and of what became Yosemite and Yellowstone national parks, his successful crusades to preserve the wilderness, his early walking tour to Florida, and the Alaska journey of 1879.

    Alvarez, "has permeated Western culture like a dye that cannot be washed out." Although the aims of this compelling, compassionate work are broadly cultural and literary, the narrative is rooted in personal experience: it begins with a long memoir of Sylvia Plath, and ends with an account of the author's own suicide attempt. Within this dramatic framework, Alvarez launches his enquiry into the final taboo of human behavior, and traces changing attitudes towards suicide from the perspective of literature. He follows the black thread leading from Dante through Donne and the romantic agony, to the Savage God at the heart of modern literature.

    Richard Westfall's biography captures in engaging detail both his private life and scientific career, presenting a complex picture of Newton the man, and as scientist, philosopher, theologian, alchemist and public figure. An abridged version of his Never at Rest, this concise biography makes Westfall's highly acclaimed portrait of Newton accessible to general readers.

    A Key Strength Of This Text Is Zill'S Emphasis On Differential Equations As Mathematical Models, Discussing The Constructs And Pitfalls Of Each. The Third Edition Is Comprehensive, Yet Flexible, To Meet The Unique Needs Of Various Course Offerings Ranging From Ordinary Differential Equations To Vector Calculus. Numerous New Projects Contributed By Esteemed Mathematicians Have Been Added. Key Features O The Entire Text Has Been Modernized To Prepare Engineers And Scientists With The Mathematical Skills Required To Meet Current Technological Challenges. O The New Larger Trim Size And 2-Color Design Make The Text A Pleasure To Read And Learn From. O Numerous NEW Engineering And Science Projects Contributed By Top Mathematicians Have Been Added, And Are Tied To Key Mathematical Topics In The Text. O Divided Into Five Major Parts, The Text'S Flexibility Allows Instructors To Customize The Text To Fit Their Needs. The First Eight Chapters Are Ideal For A Complete Short Course In Ordinary Differential Equations. O The Gram-Schmidt Orthogonalization Process Has Been Added In Chapter 7 And Is Used In Subsequent Chapters. O All Figures Now Have Explanatory Captions. Supplements O Complete Instructor'S Solutions: Includes All Solutions To The Exercises Found In The Text. Powerpoint Lecture Slides And Additional Instructor'S Resources Are Available Online. O Student Solutions To Accompany Advanced Engineering Mathematics, Third Edition: This Student Supplement Contains The Answers To Every Third Problem In The Textbook, Allowing Students To Assess Their Progress And Review Key Ideas And Concepts Discussed Throughout The Text. ISBN: 0-7637-4095-0

    Taking us on a journey through every fundamental field of science, as well as the history of civilization, art, moral values, and the theory of political institutions, Deutsch tracks how we form new explanations and drop bad ones, explaining the conditions under which progress—which he argues is potentially boundless—can and cannot happen. Hugely ambitious and highly original, The Beginning of Infinity explores and establishes deep connections between the laws of nature, the human condition, knowledge, and the possibility for progress.

    13 extraordinary essays shed new light on the mysteries of the universe & on one of the most brilliant thinkers of our time.In his phenomenal bestseller A Brief History of Time, Stephen Hawking literally transformed the way we think about physics, the universe, reality itself. In these thirteen essays and one remarkable extended interview, the man widely regarded as the most brilliant theoretical physicist since Einstein returns to reveal an amazing array of possibilities for understanding our universe. Building on his earlier work, Hawking discusses imaginary time, how black holes can give birth to baby universes, and scientists’ efforts to find a complete unified theory that would predict everything in the universe. With his characteristic mastery of language, his sense of humor and commitment to plain speaking, Stephen Hawking invites us to know him better—and to share his passion for the voyage of intellect and imagination that has opened new ways to understanding the very nature of the cosmos.

    . . Nobel winner . . . bestselling author . . . safe-cracker. In this substantial graphic novel biography, First Second presents the larger-than-life exploits of Nobel-winning quantum physicist, adventurer, musician, world-class raconteur, and one of the greatest minds of the twentieth century: Richard Feynman. Written by nonfiction comics mainstay Jim Ottaviani and brilliantly illustrated by First Second author Leland Myrick, Feynman tells the story of the great man's life from his childhood in Long Island to his work on the Manhattan Project and the Challenger disaster. Ottaviani tackles the bad with the good, leaving the reader delighted by Feynman's exuberant life and staggered at the loss humanity suffered with his death. Anyone who ever wanted to know more about Richard P. Feynman, quantum electrodynamics, the fine art of the bongo drums, the outrageously obscure nation of Tuva, or the development and popularization of the field of physics in the United States need look no further than this rich and joyful work.• One of School Library Journal's Best Adult Books 4 Teens titles of 2011 • One of Horn Book's Best Nonfiction Books of 2011

    When he died in 1899, even his religious enemies acknowledged that he might have aspired to the U.S. presidency had he been willing to mask his opposition to religion. To the question that retains its controversial power today—was the United States founded as a Christian nation?—Ingersoll answered an emphatic no.In this provocative biography, Susan Jacoby, the author of Freethinkers: A History of American Secularism, restores Ingersoll to his rightful place in an American intellectual tradition extending from Thomas Jefferson and Thomas Paine to the current generation of  “new atheists.” Jacoby illuminates the ways in which America’s often-denigrated and forgotten secular history encompasses issues, ranging from women’s rights to evolution, as potent and divisive today as they were in Ingersoll’s time. Ingersoll emerges in this portrait as one of the indispensable public figures who keep an alternative version of history alive. He devoted his life to that greatest secular idea of all—liberty of conscience belonging  to the religious and nonreligious alike.

     Through these short biographies, we get acquainted with the history of mathematics from Archimedes to William Thurston, and learn about those too often left out of the cannon, such as Muhammad ibn Musa al-Khwarizmi, the creator of algebra; Ada Lovelace, the world's first computer programmer; and Emmy Noether, whose research on symmetry paved the way for modern physics. Tracing the evolution of mathematics over the course of two millennia, Significant Figures will educate and delight aspiring mathematicians and experts alike.

    Its author, born to an established middle-class family, was no prince himself. Machiavelli (1469–1527) worked as a courtier and diplomat for the Republic of Florence and enjoyed some small fame in his time as the author of bawdy plays and poems. Upon the Medici's return to power, however, he found himself summarily dismissed from the government he had served for decades and exiled from the city where he was born.In this discerning new biography, Ross King rescues Machiavelli's legacy from caricature, detailing the vibrant political and social context that influenced his thought and underscoring the humanity of one of history's finest political thinkers. Ross King's Machiavelli visits fortune-tellers, produces wine on his Tuscan estate, travels Europe tirelessly on horseback as a diplomatic envoy, and is a passionate scholar of antiquity—but above all, a keen observer of human nature.

    At a summer tea party in Cambridge, England, a guest states that tea poured into milk tastes different from milk poured into tea. Her notion is shouted down by the scientific minds of the group. But one man, Ronald Fisher, proposes to scientifically test the hypothesis. There is no better person to conduct such an experiment, for Fisher is a pioneer in the field of statistics.The Lady Tasting Tea spotlights not only Fisher's theories but also the revolutionary ideas of dozens of men and women which affect our modern everyday lives. Writing with verve and wit, David Salsburg traces breakthroughs ranging from the rise and fall of Karl Pearson's theories to the methods of quality control that rebuilt postwar Japan's economy, including a pivotal early study on the capacity of a small beer cask at the Guinness brewing factory. Brimming with intriguing tidbits and colorful characters, The Lady Tasting Tea salutes the spirit of those who dared to look at the world in a new way.

    Indeed, numbers are part of every discipline in the sciences and the arts.With 350 illustrations, including diagrams, photographs and computer imagery, the book chronicles the centuries-long search for the meaning of numbers by famous and lesser-known mathematicians, and explains the puzzling aspects of the mathematical world. Topics include:The earliest ideas of numbers and counting Patterns, logic, calculating Natural, perfect, amicable and prime numbers Numerology, the power of numbers, superstition The computer, the Enigma Code Infinity, the speed of light, relativity Complex numbers The Big Bang and Chaos theories The Philosopher's Stone. The Book of Numbers shows enthusiastically that numbers are neither boring nor dull but rather involve intriguing connections, rivalries, secret documents and even mysterious deaths.

    A personal selection of the best interviews from eight classic books by America's much-loved pre-eminent oral historian, Studs Terkel.

    It certainly is the strangest idea that humans have ever thought. Where did it come from and what is it telling us about our Universe? Can there actually be infinities? Is matter infinitely divisible into ever-smaller pieces? But infinity is also the place where things happen that don't. All manner of strange paradoxes and fantasies characterize an infinite universe. If our Universe is infinite then an infinite number of exact copies of you are, at this very moment, reading an identical sentence on an identical planet somewhere else in the Universe. Now Infinity is the darling of cutting edge research, the measuring stick used by physicists, cosmologists, and mathematicians to determine the accuracy of their theories. From the paradox of Zeno’s arrow to string theory, Cambridge professor John Barrow takes us on a grand tour of this most elusive of ideas and describes with clarifying subtlety how this subject has shaped, and continues to shape, our very sense of the world in which we live. The Infinite Book is a thoroughly entertaining and completely accessible account of the biggest subject of them all–infinity.