A great vocabulary can enhance your speaking, writing, and even thinking skills. This course will boost your vocabulary, whether you want to enhance your personal lexicon, write or speak more articulately in professional settings, or advance your knowledge of the English language. For anyone who has ever grasped for the perfect word at a particular moment, this course provides a research-based and enjoyable method for improving your vocabulary. Building a Better Vocabulary offers an intriguing look at the nuts and bolts of English, teaches you the etymology and morphology - or the history and structure - of words, and delves into the cognitive science behind committing new words to long-term memory. By the end of the 36 enjoyable lectures, you will have a practical framework for continuing to build your vocabulary by discovering new words and fully mastering the nuances of familiar ones. If you are an avid reader, you may have previously encountered some of the words in this course. But even the most voracious reader will be surprised and delighted by these eye-opening lectures, which delve into the building blocks of the English language and reveal intriguing new nuances to words you thought you knew well. These lectures will kindle a passion for the process by which words are created and for the beauty of the words you read, speak, and hear every day.

    The PatriarchAn Overview 2. The Education of a Philosophe 3. Philosophical Letters, Part I 4. Philosophical Letters, Part II 5. The Years of Cirey 6. From Optimism to Humanism 7. Voltaire and the Philosophical Tale 8. Voltaire at Ferney 9. Voltaire and God 10. Voltaire and History 11. Voltaire and Tradition 12. Apotheosis

    And with the advent of modern science, great minds have turned to testing and experimentation rather than mere thought as a way of approaching and grappling with some of the universe's most pressing and vexing dilemmas. So what is our latest picture of some of the most inexplicable features of the universe? What still remains to be uncovered? What are some of the next avenues of exploration for today's chemists, physicists, biologists, and astronomers? Pondering the answers to these and other questions is a great way to appreciate the grandeur and complexity of the world around you, better understand and discuss news and developments in science, and spark further interest in some of science's many exciting areas of study. "We know a lot about the universe. But there's even more that we don't know,"says astrophysicist and Professor Neil deGrasse Tyson, director of the Hayden Planetarium, an award-winning lecturer, and one of the world's foremost experts on the secrets of the universe. And his course The Inexplicable Universe: Unsolved Mysteries is the perfect gateway into this mind-bending and eye-opening subject. Each of these six self-contained lectures is a marvelous journey to the frontiers of the known (and unknown) universe and introduces you to tantalizing questions being addressed by the world's top scientists. Undeniably engaging and fascinating, this lecture series is a wonderful entrée to scientific pursuits that lie at the very heart of the history and nature of our universe. An Informed Scientific Conversation Central to The Inexplicable Universe is the way it takes you deep into hidden layers of the universe in a manner that is extremely accessible. Rather than a stern lecture given before a podium complete with confusing mathematics, Professor Tyson's lectures have the feel of an informed conversation that manages to be both thorough and easy to grasp. With each of the inexplicable mysteries he lays bare for you, Professor Tyson introduces you to the history behind it, lays out the science that has helped us grasp it, explains what researchers have discovered to date, and reveals what we have yet to discover. And while the topics explore subjects in everything from quantum mechanics to cosmology to string theory, you'll never feel overwhelmed by what you're learning. In fact, you're more likely to find yourself intrigued by just how much we know-and curious about what the near future will possibly reveal. Explore Fascinating Territory So what territory will you chart in this course? Here are some of the inexplicable ideas you'll investigate in these lectures. Neutrinos: Discovered in 1956, these fast-moving, ghostlike particles are made in abundance in the sun's core. They hardly interact with matter; it takes a light-year's worth of lead (5.8 trillion miles) to stop a neutrino. Not only that, but 65 billion neutrinos pass through every centimeter of your body that's facing the sun every second of every day. String theory: This astounding theory offers the hope of unifying all the particles and forces of physics. In the past several decades since the dawn of string theory, it's been imagined that all the fundamental particles we see and measure are just the manifestation in our dimension of strings vibrating in higher dimensions and at different frequencies. Quantum foam: This idea posits that when the fabric of space and time is so tightly curved on itself, space-time is less a smooth curve and more like the froth on a latte. In this state of matter and energy, quantum fluctuations can spawn entire universes, each with slightly different laws of physics within them! In addition, you'll also get a peek at what it would be like to travel through a black hole, ponder the possibility that life on Earth originated in debris from Mars, probe the supposed existence of multiple universes, and even imagine the possible end of the universe itself. A One-on-One Chat with a Renowned Science Educator Professor Tyson is renowned throughout the scientific community and the media for his vast knowledge, his penetrating insights, and his amazing ability to make even the most intimidating areas of science accessible, engaging, and-most of all-enjoyable. He brings the same inviting tone and sharp intellect to The Inexplicable Universe as he does to his range of media appearances on popular television programs. Due to its unique subject matter The Inexplicable Universe takes a highly visual approach. Many of the fascinating subjects in the course, such as black holes, string theory, and multiple universes are best demonstrated visually and Professor Tyson's lectures feature expertly crafted computer animations, explanatory diagrams, high resolution photographs, and other instructive visual elements. In order to better explain to you some of the grand, intricate ideas being discussed, Professor Tyson personally interacts with many of these animations and graphics using greenscreen technology. Please note that, due to the highly visual nature of The Inexplicable Universe, the course does not come with a guidebook. We did not believe a simple book could adequately convey the information in the course, and rather than make a guidebook that did not do the course justice, we decided to not offer one. However, we believe that you will be very excited by how we produced this course and will find it to be an enriching and fulfilling experience in your educational journey.

    In this course brought to you in partnership with HISTORY, you will be visiting some of history’s deepest rabbit-holes, across centuries and continents, in search of secret societies in all their varieties. You will journey to some very dark places, and frankly some odd and sometimes silly ones as well. During 24 eye-opening lectures, Dr. Richard B. “Rick” Spence, Professor of History at the University of Idaho, guides you through the fascinating, often mystifying - sometimes disturbing - world of brotherhoods, sisterhoods, orders, cults, and cabals that have influenced human culture from ancient times to the present.You’ll understand how and why secret societies have attracted some of history’s most brilliant, and some of its most evil, minds. Often demonized by their enemies, many secret societies have become the stuff of myths and conspiracy theories. Why do they exist? And when they are invented or imagined, why would someone pretend they exist? What do secret societies believe? Who do they recruit? Most important, what influence do they have? Buckle up and get ready to find out.

    For more than forty years, Bloom has transformed college students into lifelong readers with his unrivaled love for literature. Now, at a time when faster and easier electronic media threatens to eclipse the practice of reading, Bloom draws on his experience as critic, teacher, and prolific reader to plumb the great books for their sustaining wisdom. Shedding all polemic, Bloom addresses the solitary reader, who, he urges, should read for the purest of all reasons: to discover and augment the self. His ultimate faith in the restorative power of literature resonates on every page of this infinitely rewarding and important book.

    24 Lectures / 30 minutes per lecture.1. Why the Middle Ages?2. Demography and the Commercial Revolution3. Those Who Fought—The Nobles4. The Chivalric Code5. Feudalism6. Those Who Worked—The Peasants7. Those Who Worked—The Townspeople8. Women in Medieval Society9. Those Who Prayed—The Monks10. Francis of Assisi and the Franciscan Movement11. Heretics and Heresy12. The Medieval Inquisitions13. Jews and Christians14. The Origins of Scholasticism15. Aquinas and the Problem of Aristotle16. The First Universities17. The People's Crusade18. The Conquest of Jerusalem19. The Norman Conquest20. Philip II of France21. Magna Carta22. Empire versus Papacy23. Emperor Frederick II24. Looking Back, Looking Forward

    893 Western civilization is closely associated with reason and science, and with exceptional accomplishment in art, architecture, music, and literature. Yet it has also been characterized by widespread belief in the supernatural and the irrationalwith mystics who have visions of the divine, and with entire movements of people who wait in fervent anticipation of the apocalypse. In addition, Western culture has been the setting for repeated acts of barbarism: persecutions of certain groups such as Jews, or accused heretics and witches. Why has this been the case? This two-part series invites you to consider what might be called the "underbelly" of Western society, a complex mixture of deeply embedded beliefs and unsettling social forces that has given rise to our greatest saints and our most shameful acts. The "terror of history," according to Professor Teofilo F. Ruiz, is a deeply held beliefdating from the ancient Greeks to Nietzsche and beyondthat the world is essentially about disorder and emptiness, and that human beings live constantly on the edge of doom. We see history as terrifying, so we try to escape it. One strategy is to withdraw through transcendental experiences. Another, unfortunately, is to shift our fears onto scapegoats such as lepers, nonconformists, and other outsiders whom we choose to blame for "the catastrophe of our existence," as Professor Ruiz puts it.

    Yet all too often, we're exposed to information and techniques that promise quick and easy results but can be harmful to your overall health: crash diets, experimental medications, ever-changing studies on what you should eat more or less of, and more. It can be confusing to dig through the mass of hype, myth, and misconceptions about good nutrition habits. So in the face of potentially misleading information and aids, where can you find the key to nutritional success?The answer: in understanding the concepts, practices, and science behind good nutrition. Once you master the intricate—and undeniably captivating—interaction between what you eat and its effect on your body and mind, you unlock a powerful and scientifically proven tool to use in the quest for maintaining or improving your personal health.Nutrition Made Clear is your opportunity to finally sort through nutrition misconceptions and replace them with hard science you can understand. In 36 in-depth lectures taught by dietitian and award-winning Professor Roberta H. Anding, you explore the fundamentals of good nutrition and get a practical and personal guide to applying these fundamentals to your unique lifestyle. Designed to appeal to anyone at any age, this course is an invaluable source of medically backed, statistically proven information about the guidelines for healthy eating and living.

    Central to many spiritual and philosophical traditions and known in English as "meditation," these practices are considered a major means for enhanced awareness and self-mastery. In recent decades, modern science has dramatically confirmed what advanced meditators have long claimed—that meditation, correctly practiced, offers deep and lasting benefits for mental functioning and emotional health, as well as for physical health and well-being.

    Relativity and quantum physics touch the very basis of physical reality, altering our commonsense notions of space and time, cause and effect. Both have reputations for complexity. But the basic ideas behind relativity and quantum physics are, in fact, simple and comprehensible by anyone. As Professor Wolfson points out, the essence of relativity can be summed up in a single sentence: The laws of physics are the same for all observers in uniform motion. The same goes for quantum theory, which is based on the principle that the "stuff " of the universe-matter and energy-is not infinitely divisible but comes in discrete chunks called "quanta." Profound ... Beautiful ... Relevant Why should you care about these landmark theories? Because relativity and quantum physics are not only profound and beautiful ideas in their own right, they are also the gateway to understanding many of the latest science stories in the media. These are the stories about time travel, string theory, black holes, space telescopes, particle accelerators, and other cutting-edge developments. Consider these ideas: Although Einstein's theory of general relativity dates from 1914, it has not been possible to test certain predictions until recently. The Hubble Space Telescope is providing some of the most striking confirmations of the theory, including certain evidence for the existence of black holes, objects that warp space and time so that not even light can escape. Also, the expansion of the universe predicted by the theory of general relativity is now a known rate. General relativity also predicts an even weirder phenomenon called "wormholes" that offer shortcuts to remote reaches of time and space. According to Einstein's theory of special relativity, two twins would age at different rates if one left on a high-speed journey to a distant star and then returned. This experiment has actually been done, not with twins, but with an atomic clock flown around the world. Another fascinating experiment confirming that time slows as speed increases comes from measuring muons at the top and bottom of mountains. A seemingly absurd consequence of quantum mechanics, called "quantum tunneling," makes it possible for objects to materialize through impenetrable barriers. Quantum tunneling happens all the time on the subatomic scale and plays an important role in electronic devices and the nuclear processes that keep the sun shining. Some predictions about the expansion of the universe were so odd that Einstein himself tried to rewrite the mathematics in order to eliminate them. When Hubble discovered the expansion of the universe, Einstein called the revisions the biggest mistake he had ever made. An intriguing thought experiment called "Schrödinger's cat" suggests that a cat in an enclosed box is simultaneously alive and dead under experimental conditions involving quantum phenomena. From Aristotle to the Theory of Everything Professor Wolfson begins with a brief overview of theories of physical reality starting with Aristotle and culminating in Newtonian or "classical" physics. Then he outlines the logic that led to Einstein's theory of special relativity, and the simple yet far-reaching insight on which it rests. With that insight in mind, you move on to consider Einstein's theory of general relativity and its interpretation of gravitation in terms of the curvature of space and time. Professor Wolfson then shows how inquiry into matter at the atomic and subatomic scales led to quandaries that are resolved-or at least clarified-by quantum mechanics, a vision of physical reality so at odds with our experience that it nearly defies language. Bringing relativity and quantum mechanics into the same picture leads to hypotheses about the origin, development, and possible futures of the entire universe, and the possibility that physics can produce a "theory of everything" to account for all aspects of the physical world. Fascinating Incidents and Ideas Along the way, you'll explore these fascinating incidents and ideas: In the 1880s, Albert Michelson and Edward Morley conducted an experiment to determine the motion of the Earth relative to the ether, which was a supposedly imponderable substance pervading all of space. You'll learn about their experiment, its shocking result, and the resulting theoretical crisis. In 1905, a young Swiss patent clerk named Albert Einstein resolved the crisis by discarding the ether concept and asserting the principle of relativity-that the laws of physics are the same for all observers in uniform motion. Relativity implies that the time order of events can be different in different reference frames. Does this wreak havoc with cause and effect? And why does Einstein assert that nothing can go faster than light? Shortly after publishing his 1905 paper on special relativity, Einstein realized that his theory required a fundamental equivalence between mass and energy, which he expressed in the equation E=mc2. Among other things, this famous formula means that the energy contained in a single raisin could power a large city for a whole day. Historically, the path to general relativity followed Einstein's attempt to incorporate gravity into relativity theory, which led to his understanding of gravity not as a force, but as a local manifestation of geometry in curved spacetime. Quantum theory places severe limits on our ability to observe nature at the atomic scale because it implies that the act of observation necessarily disturbs the thing that is being observed. The result is Werner Heisenberg's famous "uncertainty principle." Are quarks, the particles that make up protons and neutrons, the truly elementary particles? What are the three fundamental forces that physicists identify as holding particles together? Could they be manifestations of a single, universal force? A Teaching Legend On his own Middlebury College campus, Professor Wolfson is a teaching legend with an infectious enthusiasm for his subject and a knack for conveying difficult concepts in a way that fosters true understanding. He is the author of an introductory text on physics, a contributor to the esteemed publication Scientific American, and a specialist in interpreting science for the nonspecialist. In this course, Professor Wolfson uses extensive illustrations and diagrams to help bring to life the theories and concepts that he discusses. Thus we highly recommend our DVD version, although Professor Wolfson is mindful of our audio students and carefully describes visual materials throughout his lectures. Professor Richard Wolfson on the Second Edition of Einstein's Relativity: "The first version of this course was produced in 1995. In this new version, I have chosen to spend more time on the philosophical interpretation of quantum physics, and on recent experiments relevant to that interpretation. I have also added a final lecture on the theory of everything and its possible implementation through string theory. The graphic presentations for the DVD version have also been extensively revised and enhanced. But the goal remains the same: to present the key ideas of modern physics in a way that makes them clear to the interested layperson."

    James Joyce’s big blue book, Ulysses, ushered in the modernist era and changed the novel for all time. But the genius of Ulysses was also its danger: it omitted absolutely nothing. All of the minutiae of Leopold Bloom’s day, including its unspeakable details, unfold with careful precision in its pages. The New York Society for the Suppression of Vice immediately banned the novel as "obscene, lewd, and lascivious.” Joyce, along with some of the most important publishers and writers of his era, had to fight for years to win the freedom to publish it. The Most Dangerous Book tells the remarkable story surrounding Ulysses, from the first stirrings of Joyce’s inspiration in 1904 to its landmark federal obscenity trial in 1933.   Literary historian Kevin Birmingham follows Joyce’s years as a young writer, his feverish work on his literary masterpiece, and his ardent love affair with Nora Barnacle, the model for Molly Bloom. Joyce and Nora socialized with literary greats like Ezra Pound, Ernest Hemingway, T. S. Eliot and Sylvia Beach. Their support helped Joyce fight an array of anti-vice crusaders while his book was disguised and smuggled, pirated and burned in the United States and Britain. The long struggle for publication added to the growing pressures of Joyce’s deteriorating eyesight, finances and home life.   Salvation finally came from the partnership of Bennett Cerf, the cofounder of Random House, and Morris Ernst, a dogged civil liberties lawyer and founder of the ACLU. With their stewardship, the case ultimately rested on the literary merit of Joyce’s master work. The sixty-year-old judicial practices governing obscenity in the United States were overturned because a federal judge could get inside Molly Bloom’s head.   Birmingham’s archival work brings to light new information about both Joyce and the story surrounding Ulysses. Written for ardent Joyceans as well as novices who want to get to the heart of the greatest novel of the twentieth century, The Most Dangerous Book is a gripping examination of how the world came to say yes to Ulysses.

    And in this bold 24-lecture series, you can do just that.

    A series of 24 lectures comprising a course on comparative religion presented by Charles Kimball, director of the Religious Studies Program at the University of Oklahoma.

    The Great Ideas of Classical Physics 2. Describing MotionA Break from Aristotle 3. Describing Ever More Complex Motion 4. Astronomy as a Bridge to Modern Physics 5. Isaac NewtonThe Dawn of Classical Physics 6. Newton QuantifiedForce and Acceleration 7. Newton and the Connections to Astronomy 8. Universal Gravitation 9. Newton's Third Law 10. Conservation of Momentum 11. Beyond NewtonWork and Energy 12. Power and the Newtonian Synthesis 13. Further DevelopmentsStatic Electricity 14. Electricity, Magnetism, and Force Fields 15. Electrical Currents and Voltage 16. The Origin of Electric and Magnetic Fields 17. Unification IMaxwell's Equations 18. Unification IIElectromagnetism and Light 19. Vibrations and Waves 20. Sound Waves and Light Waves 21. The Atomic Hypothesis 22. Energy in SystemsHeat and Thermodynamics 23. Heat and the Second Law of Thermodynamics 24. The Grand Picture of Classical Physics

    To understand the unfolding of Spain's epic history is to come to terms with one of the West's great cultures, and to grasp its enduring presence and impact on the world stage.In these 24 accessible lectures, Professor Salisbury presents a broad and enthralling panorama of Spanish history, covering the centuries from the first prehistoric settlement of the peninsula to Spain's 20th-century civil war.Linking one seminal era with the next, the course begins with how early Spain drew a range of peoples from ancient Africa, the Mediterranean, and the Middle East, who formed vibrant communities on the peninsula. From there, you'll witness the rule of the peninsula by both Rome and Visigothic peoples, leading to the spellbinding drama of Islamic Spain and the Reconquista, Catholic Spain and the Inquisition, and the opening of the New World. Finally, you'll travel into the kingly dynasties and the dazzling artistic heritage of the Habsburgs and Bourbons, and you'll track Spain's emergence into the modern world.Together with the unfolding of Spanish history, Professor Salisbury illuminates Spain's iconic cultural forms - such as flamenco music and dance, and the ritual of bullfighting - and its phenomenal contributions to art, architecture, literature, music, theology, and learning.Across the centuries, you'll explore jewels of Spanish architecture, from the resplendent Moorish Alhambra and Alcázar of Seville to the sublime Sagrada Familia cathedral of modernist Antoni Gaudí. And you'll encounter Spain's geniuses of the visual and written arts, including such masters as the painters Velasquez, el Greco, Goya, and Picasso, and writers from the philosophers Averroes and Maimonides to literary greats Lope de Vega and Cervantes.Travel with us to this remarkable culture, and savor the beauty and the great human drama of the history of Spain.