The truth is, while metaphysics is among the oldest strands of philosophical thought—an inquiry into the very nature ofreality—metaphysics is also on the cutting edge of today’s scientific discoveries.

    

    Witty and accessible, Paul Lockhart’s controversial approach will provoke spirited debate among educators and parents alike and it will alter the way we think about math forever.Paul Lockhart, has taught mathematics at Brown University and UC Santa Cruz. Since 2000, he has dedicated himself to K-12 level students at St. Ann’s School in Brooklyn, New York.

    The first half of the book deals with classical physical optics; the second principally with the quantum nature of light. Chapters 1 and 2 treat the propagation of light waves, including the concepts of phase and group velocities, and the vectorial nature of light. Chapter 3 applies the concepts of partial coherence and coherence length to the study of interference, and Chapter 4 takes up multiple-beam interference and includes Fabry-Perot interferometry and multilayer-film theory. Diffraction and holography are the subjects of Chapter 5, and the propagation of light in material media (including crystal and nonlinear optics) are central to Chapter 6. Chapters 7 and 8 introduce the quantum theory of light and elementary optical spectra, and Chapter 9 explores the theory of light amplification and lasers. Chapter 10 briefly outlines ray optics in order to introduce students to the matrix method for treating optical systems and to apply the ray matrix to the study of laser resonators.Many applications of the laser to the study of optics are integrated throughout the text. The author assumes students have had an intermediate course in electricity and magnetism and some advanced mathematics beyond calculus. For classroom use, a list of problems is included at the end of each chapter, with selected answers at the end of the book.

    

    Extracted from Volumes 10 & 16 of the Collected Works: "Wotan""The Fight with the Shadow""Psychotherapy Today""Psychotherapy & a Philosophy of Life" "After the Catastrophe"Epilogue

    This account of Heidegger's personal relations, originally published in German and extensively corrected by the author for this translation, enlarges our understanding of a complex figure.A well-known art historian and an intimate friend of Heidegger's, Heinrich Wiegand Petzet provides a rich portrait of Heidegger that is part memoir, part biography, and part cultural history. By recounting chronologically a series of encounters between the two friends from their meeting in 1929 until the philosopher's death in 1976, as well as between Heidegger and other contemporaries, Petzet reveals not only new aspects of Heidegger's thought and attitudes toward the historical and intellectual events of his time but also the greater cultural and social context in which he articulated his thought.

    No one seemed able to agree on a cause. (Dark matter? Tensor–vector–scalar gravity? Collisions with gravitons?) What did seem clear to those who became obsessed with it was that the Pioneer Anomaly had the potential to upend Einstein and Newton—to change everything we know about the universe.With riveting prose and the precision of an expert, Konstantin Kakaes gives us a scientific police procedural, tracking the steps of those who sought to unravel this high-stakes enigma. His thrilling account draws on extensive interviews and archival research, following the story from the Anomaly’s initial discovery, through decades of tireless investigation, to its ultimate conclusion. “The Pioneer Detectives” is a definitive account not just of the Pioneer Anomaly but of how scientific knowledge gets made and unmade, with scientists sometimes putting their livelihoods on the line in pursuit of cosmic truth. Perfect for fans of John McPhee, Thomas Kuhn, and Ed McBain, this is also an immensely enjoyable story accessible to anyone who loves brilliant, fascinating long-form journalism.* * * ABOUT THE AUTHOR: Konstantin Kakaes is a Bernard L. Schwartz fellow at the New America Foundation, writing about science and technology, and is the former Mexico City bureau chief for The Economist. His work has been published in The Wall Street Journal, Foreign Policy, and The Washington Post and appears frequently in Slate. Before becoming a journalist, he studied physics at Harvard University.

    Jim Carter, the Einstein of outsiders, has developed his own complete theory of matter and energy and gravity that he demonstrates with experiments in his backyard,-with garbage cans and a disco fog machine he makes smoke rings to test his ideas about atoms. Captivated by the imaginative power of his theories and his resolutely DIY attitude, Wertheim has been following Carter's progress for the past decade.Centuries ago, natural philosophers puzzled out the laws of nature using the tools of observation and experimentation. Today, theoretical physics has become mathematically inscrutable, accessible only to an elite few. In rejecting this abstraction, outsider theorists insist that nature speaks a language we can all understand. Through a profoundly human profile of Jim Carter, Wertheim's exploration of the bizarre world of fringe physics challenges our conception of what science is, how it works, and who it is for.

    Richard Carrier, world renowned philosopher and historian, explains the four reasons he does not accept the Christian religion, describing four facts of the world that, had they been different, he would believe. He is brief, clear, and down to earth, covering the whole topic in under ninety pages of easy-to-read explanation. Those four reasons are God's silence, God's inaction, the lack of evidence, and the way the universe looks exactly like a godless universe would, and not at all like a Christian universe would, even down to its very structure. Dr. Carrier addresses all the usual replies to these claims, in ways you might not have heard before, relying on his wide experience in debating and studying these issues all over the world for more than fifteen years. A perfect book to introduce yourself, or your friends, to why fewer educated people are embracing Christianity than ever before. Ideal for handing out to door-to-door missionaries.

    They lived life to the fullest, loved unashamedly, listened to their heart’s desires, and created one of the most advanced, culturally sophisticated societies ever known. Is all that now dead and buried? Or only for the professors to mull over?One classics scholar, Dr. Stephen Bertman, answers this resoundingly in The Eight Pillars of Greek Wisdom. He shows how to bring passion and excellence to the center of your daily life, as the ancient Greeks intended them to be. The lessons they learned—that life is brief and fragile and time is too precious to waste; that we do not know who we are until we discover who we can be; that we cannot undertake our voyage through life alone; that there will be obstacles along the way, but the greatest obstacle is within—led them to develop what Bertman describes as eight guiding principles of wisdom: Humanism The Pursuit of Excellence The Practice of Moderation Self-Knowledge Rationalism Restless Curiosity The Love of Freedom Individualism These eight pillars are explored in the book. Each is illuminated through vivid examples drawn from the rich heritage of classical history and mythology, including tales of gods and goddess, heroes and heroines, adventure and exploration, and self-discovery and personal triumph.

    The British expected R.101 to spearhead a fleet of imperial airships that would dominate the skies as British naval ships, a century earlier, had ruled the seas. The dream ended when, on its demonstration flight to India, R.101 crashed in France, tragically killing nearly all aboard.Combining meticulous research with superb storytelling, Fatal Flight guides us from the moment the great airship emerged from its giant shed—nearly the largest building in the British Empire—to soar on its first flight, to its last fateful voyage. The full story behind R.101 shows that, although it was a failure, it was nevertheless a supremely imaginative human creation. The technical achievement of creating R.101 reveals the beauty, majesty, and, of course, the sorrow of the human experience.The narrative follows First Officer Noel Atherstone and his crew from the ship’s first test flight in 1929 to its fiery crash on October 5, 1930. It reveals in graphic detail the heroic actions of Atherstone as he battled tremendous obstacles. He fought political pressures to hurry the ship into the air, fended off Britain’s most feted airship pilot, who used his influence to take command of the ship and nearly crashed it, and, a scant two months before departing for India, guided the rebuilding of the ship to correct its faulty design. After this tragic accident, Britain abandoned airships, but R.101 flew again, its scrap melted down and sold to the Zeppelin Company, who used it to create LZ 129, an airship even more mighty than R.101—and better known as the Hindenburg. Set against the backdrop of the British Empire at the height of its power in the early twentieth century,Fatal Flight portrays an extraordinary age in technology, fueled by humankind’s obsession with flight.

    Relates the life of the remarkable man who made major contributions in such fields as physics, languages, and music, describing how he proposed the light-wave theory and the three-color theory of vision, and was instrumental in the deciphering of the Rosetta Stone.

    

    Hodgkinson offer you a wry look inside the mirrored palaces of high culture.Read this book and you'll never again mistake Hegel for Engels, you'll know when precisely to drop Foucault's name into a conversation and how to pronounce "Borgesian," and you'll learn many more essential pointers for the intellectual life.