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.

    A series of 24 Lectures on the New England Transcendalist Movement delivered by Ashton Nichols, Professor of English at Dickinson College.

    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.

    Owing to the work of an astonishing range of visionary thinkers, this fascinating period was the era in which the foundations of the modern Western world were laid. In the medieval era's great minds we find the roots of many aspects of today's world - from the religious/philosophical thought of Augustine, Ambrose of Milan, and Thomas Aquinas to the scientific innovations of Avicenna and Alhacen, the enlightened statesmanship of Charlemagne and Lorenzo de Medici, and the literary creations of Dante and Chaucer.In these 24 lectures, Professor Armstrong leads you on an enthralling journey into the lives of the seminal thinkers of the Middle Ages. In this gallery of extraordinary minds, you'll encounter the leading lights of a world-shaping era, including figures such as Maimonides, Hildegard of Bingen, Bernard of Clairvaux, Peter Abelard, and Francesco Petrarch. Professor Armstrong goes to great lengths to bring these historic figures to life, revealing both the great intellectual contributions and the personal strivings, challenges, and triumphs of some of history's most remarkable human beings. These compelling lectures take you deeply into the heart of one of civilization's most dynamic and impactful eras.Listening Length: 11 hours and 59 minutes

    A leather couch. A neatly bearded, scholarly looking gentleman seated off to the side, only rarely speaking, quietly taking notes and occasionally nodding as the couch's supine occupant tells his or her story.In some ways, such a picture would indeed be accurate, a confirmation not only of the importance of Sigmund Freud in the history of psychology but also of the degree Freud dominates the popular perception of this discipline.But the picture would be inaccurate, as well.Freud was a physician, and the majority of psychologists are not. Both the psychoanalytic theory he pioneered and the therapeutic approach it was based onpsychoanalysishave seen their dominance wane in recent years. And psychologists today, as indebted as they may be to Freud's landmark explorations of our psychological landscape, are involved in far more than helping people cope with inner demons.The expansive and varied roles of contemporary psychologists create another common imageof a crowd of white-coated researchers gathered around a maze, carefully recording a white rat's performance. It's another inadequate picture because experimental psychologists today usually work with people, not animals.Moreover, the areas of interest those psychologists are pursuing now encompass every part of the process we use to develop and function as people:How we perceive, remember, and learnHow we select our friends and partners and retain their affection and loveThe things that motivate us as we make our choices in lifeEven how we relate to the vehicles, machinery, computer systems, or workspaces we encounter as we make our livings.

    4- Social Disorganization—Deviance in the Urban Landscape.5- Functionalism and Anomie—Why Can't We All Just Get Along?.6- Learning Theory—You Have to be Carefully Taught.7- Control Theory—Spare the Rod, Spoil the Child.8- Labeling Theory—Is Deviance in the Eye of the Beholder?.9- Conflict and Constructionism—Every Step You Take, I'll Be Watching You.10- Case Studies—Sex and Science.

    Learn how our most abundant poet and dramatist has been moving, delighting, and enlightening readers and audiences for 400 years, with no end in sight.Lecture Titles:1. Shakespeare Then and Now2. The Nature of Shakespeare's Plays3. Twelfth Night—Shakespearean Comedy4. Twelfth Night—Malvolio in Love5. The Taming of the Shrew—Getting Married in the 1590s6. The Taming of the Shrew—Farce and Romance7. The Merchant of Venice—Courting the Heiress8. The Merchant of Venice—Shylock9. Measure for Measure—Sex in Society10. Measure for Measure—Justice and Comedy11. Richard III—Shakespearean History12. Richard III—The Villain's Career13. Richard II—The Theory of Kingship14. Richard II—The Fall of the King15. Henry IV—All the King's Men16. Henry IV—The Life of Falstaff17. Henry V—The Death of Falstaff18. Henry V—The King Victorious19. Romeo and Juliet—Shakespearean Tragedy20. Romeo and Juliet—Public Violence and Private Bliss;21. Troilus and Cressida—Ancient Epic in a New Mode22. Troilus and Cressida—Heroic Aspirations23. Julius Caesar—The Matter of Rome24. Julius Caesar—Heroes of History25. Hamlet—The Abundance of the Play26. Hamlet—The Causes of Tragedy27. Hamlet—The Protestant Hero28. Othello—The Design of the Tragedy29. Othello—“O Villainy!”30. Othello—“The Noble Moor”31. King Lear—“This Is the Worst”32. King Lear—Wisdom Through Suffering33. King Lear—“Then We Go On”34. Macbeth—“Fair Is Foul”35. Macbeth—Musing on Murder36. Macbeth—“Enter Two Murderers”

    There is no better way to study the big questions in philosophy than to compare how the world's greatest minds have analyzed these questions, defined the terms, and then reasoned out potential solutions. Once you've compared the arguments, the final step is always deciding for yourself whether you find an explanation convincing.This course gives you the tools to follow and create logical arguments while exploring famous philosophers' viewpoints on these important questions. Although progress has been made toward answers, brilliant thinkers have continued to wrestle with many big questions that inspire thoughtful people everywhere. These questions include: What is knowledge? Does God exist? Do humans have free will? What is right and wrong? How should society be organized?Given the complexity of these big questions, it should be no surprise that many controversies are far from settled. In fact, by the end of these 36 lectures, you may be even less sure of the right answers to some of the questions than you were at the beginning. But being a philosopher means constantly testing your views - giving a reasoned defense if you believe you are right and modifying your ideas when you realize you are wrong. You'll discover that great thinkers before you have offered convincing answers to hard questions, philosophers after them have made equally persuasive objections, and then still others have refined the debate even further - causing the issues to come into sharper and sharper focus.Join Plato, St. Anselm, Descartes, Locke, Hume, Kant, Mill, Smith, Marx, Rawls, and many others in an exploration of fundamental questions. Get ready to think big!

    Disease. Starvation. Cannibals. From the ancient wayfarers to modern astronauts, world explorers have blazed trails fraught with danger. Yet, as History's Greatest Voyages of Exploration vividly demonstrates, exploration continues to be one of humanity's deepest impulses.Across 24 lectures that unveil the process by which we came to know the far reaches of our planet, you'll witness the awe-inspiring and surprisingly interconnected tale of global exploration. An award-winning history professor from the University of Tennessee, Knoxville, revolutionizes how you view the world as he introduces you to some of the greatest and most influential explorers ever known-successful as well as unsuccessful, admirable as well as flawed. You'll be spellbound as you learn of the treacherous, at times fatal, expeditions into the unknown these adventurers embarked upon, whether to the frozen Poles, Asia, Europe, the Americas, Africa, the ocean's depths, or the final frontier of space.Through it all, you consider what drove these intrepid individuals, from proselytizing and pilgrimage to the lure of wealth, conquest, fame, and new lands, as evidenced by the Vikings' arrival in North America; Marco Polo's journey along the Silk Road to China; Christopher Columbus' "Enterprise of the Indies"; the conquistadors' ravages in Latin America; and the tiny kingdom of Portugal's triumphant circumnavigation of Africa to seize control of trade in the Indian Ocean.In every lesson, you'll follow these fascinating figures - including several remarkable women - as they venture into uncharted territory and put themselves, and often their crews, in dire peril. With Professor Liulevicius' uniquely global approach, you also get a meaningful portrait of the travels of non-Westerners, as well as the perspectives of discovered people.

    The answer: with the essentials. Now, finally satisfy your desire for scientific inquiry in a way that makes this enormous field accessible, understandable, and undeniably captivating. Professor Viskontas boils down the scientific world into 12 key concepts every educated person should know. Devoting two lectures to each concept to give you more time to engage with it, her 24-lecture series is an engaging and enlightening introduction to everything from the behavior of subatomic particles to the latest theories about the Big Bang. Throughout, you'll get accessible looks at key building blocks of scientific knowledge, including brain plasticity, fluid mechanics, electromagnetism, genetics, quantum theory, emergence, evolution, thermodynamics, the Big Bang, and the nature of matter. Each concept is presented in a clear, concise way that will inform and delight you, and that will give you the opportunity to probe the invisible life of living cells, visit the universe seconds after its birth, and much more. Concepts that may have eluded you in school, that you may not be familiar with, or that you simply never appreciated for their intricate beauty are now brought to vivid life in a way that sticks. Welcome to the world of science - reduced to its powerful essence.

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

    Though he never wrote down his thoughts, he had a brilliant pupil in Plato, who immortalized his teacher's legacy in 35 timeless dialogues that laid the philosophical basis for Western civilization.Professor Michael Sugrue of Princeton University brings the Socratic quest for truth alive in these lectures, which discuss ideas that are as vital today as they were 25 centuries ago. Ideas about truth, justice, love, beauty, courage, and wisdom. Ideas that can change lives and reveal the world in new ways to the true student.Professor Sugrue reveals the inner structure, action, and meaning of 17 of Plato's greatest dialogues, making this course an indispensable companion for anyone interested in philosophy in general or Platonic thought in particular.

    

    Professor Hans-Friedrich Mueller, of Union College in Schenectady, New York, makes this ancient world come alive in 24 lectures with captivating stories of intrigue, artifacts, illustrations, and detailed descriptions from primary sources of intriguing personalities. In the ancient Mediterranean area, religion was not separate from daily life. To the contrary, religion was daily life. The many dozen gods of this ancient world were everywhere, with spirits inhabiting every crack and crevice of life. These polytheists believed they had a strict contract with their deities: If they took care of their gods, their gods would take care of them (or at least not harm them). Consequently, they built extraordinary temples to honor their deities, brought food and wine to them, sacrificed animals for them, and held sacred meals with their gods. In fact, they followed numerous rules and regulations that circumscribed almost all aspects of life both inside and outside the home - anything and everything to keep the gods happy. Consequently, the religious practices of the ancient Mediterranean make a wonderful lens through which to develop a deeper understanding of their world.

    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.