The Grand Question of Lifes Origins 2. The Historical Setting of Origins Research 3. What Is Life? 4. Is There Life on Mars? 5. Earths Oldest Fossils 6. Fossil Isotopes 7. Molecular Biosignatures 8. Emergence 9. The Miller-Urey Experiment 10. Life from the Bottom of the Sea 11. The Deep, Hot Biosphere 12. Experiments at High Pressure 13. More Experiments Under Pressure 14. Deep Space Dust, Molten Rock, and Zeolite 15. Macromolecules and the Tree of Life 16. Lipids and Membrane Self-Organization 17. Life on Clay, Clay as Life 18. Lifes Curious Handedness 19. Self-Replicating Molecular Systems 20. Günter Wächtershäusers Grand Hypothesis 21. The RNA World 22. The Pre-RNA World 23. Natural Selection and Competition 24. Three Scenarios for the Origin of Life

    From the macro to the molecular, this course takes a science-based view to debunk common weight-loss misconceptions and help you understand your own body better than you ever have.Led by Professor Michael Ormsbee, Assistant Professor and Interim Director of the Institute of Sports Sciences and Medicine, you will gain access to cutting-edge research that demonstrates what does - and doesn’t - work. The lessons presented in this course can change your life by helping you to feel better, perform better, and be healthier now and into your older years.Listening Length: 12 hours and 59 minutes (approximately equivalent to 350 page book)

    And, with its current prominence in international affairs, media images of the Middle East reach us on a daily basis. Much media coverage, however, is incomplete at best, failing to take account of either the complexities or the historical background of this pivotal region. For most of us, the real story of the Middle East remains untold. What made this crucial geopolitical area what it is today? In coming to terms with the present and future of the Middle East, an understanding of its history is not only highly valuable but essential. Now, the 36 lectures of Turning Points in Middle Eastern History unfurl a breathtaking panorama of history, exploring a 1,300-year window from the rise of the warrior prophet Muhammad to the fall of the Ottoman Empire after World War I. Each lecture focuses on a specific moment that changed the direction of events or the narrative of history. You'll witness the Battle of Karbala, where Muhammad's heirs - the Sunni and Shia - split once and for all. You'll discover the wonders of the Islamic Golden Age and marvel at the superlative advances in astronomy, mathematics, medicine, and literature - and the preservation of classical Greek and Roman wisdom - that unfolded in global centers of learning such as Baghdad, Cairo, and Cordoba. You'll follow the empire building of the Persian Safavids, the Egyptian Mamluks, and the Ottomans, among others. The breakup of the Ottoman Empire yielded most of the modern states of the Middle East. The far-reaching impacts of its rise and fall, plus the long-lasting influence of the 18th-century Saud-Wahhab Pact between a desert ruler and a religious reformer, creating today's Kingdom of Saudi Arabia, are two more expressions of how the past suffuses the present. The stories you'll discover here are as dazzling as anything in the Arabian Nights and are all the more astonishing for being true.

    Language is humanity's most spectacular open-source project, and the internet is making our language change faster and in more interesting ways than ever before. Internet conversations are structured by the shape of our apps and platforms, from the grammar of status updates to the protocols of comments and @replies. Linguistically inventive online communities spread new slang and jargon with dizzying speed. What's more, social media is a vast laboratory of unedited, unfiltered words where we can watch language evolve in real time.Even the most absurd-looking slang has genuine patterns behind it. Internet linguist Gretchen McCulloch explores the deep forces that shape human language and influence the way we communicate with one another. She explains how your first social internet experience influences whether you prefer "LOL" or "lol," why ~sparkly tildes~ succeeded where centuries of proposals for irony punctuation had failed, what emoji have in common with physical gestures, and how the artfully disarrayed language of animal memes like lolcats and doggo made them more likely to spread.Because Internet is essential reading for anyone who's ever puzzled over how to punctuate a text message or wondered where memes come from. It's the perfect book for understanding how the internet is changing the English language, why that's a good thing, and what our online interactions reveal about who we are.

    Stephen King, Hemingway, Vonnegut, and Orwell detest it. Herman Melville, Henry James, and Rebecca Solnit love it. But why? When is it effective? Have we been misusing it? Should we even care?In Semicolon, Cecelia Watson charts the rise and fall of this infamous punctuation mark, which for years was the trendiest one in the world of letters. But in the nineteenth century, as grammar books became all the rage, the rules of how we use language became both stricter and more confusing, with the semicolon a prime victim. Taking us on a breezy journey through a range of examples—from Milton’s manuscripts to Martin Luther King Jr.’s “Letters from Birmingham Jail” to Raymond Chandler’s The Big Sleep—Watson reveals how traditional grammar rules make us less successful at communicating with each other than we’d think. Even the most die-hard grammar fanatics would be better served by tossing the rule books and learning a better way to engage with language.Through her rollicking biography of the semicolon, Watson writes a guide to grammar that explains why we don’t need guides at all, and refocuses our attention on the deepest, most primary value of language: true communication.

    In this course, The Great Courses partners with the Smithsonian - one of the world's most storied and exceptional educational institutions - to examine the extraordinary events of this period and uncover the far-reaching impact of this incredible revolution. Over the course of 36 thought-provoking lectures, longtime Great Courses favorite Professor Allitt introduces you to the inventors, businessmen, and workers responsible for transforming virtually every aspect of our lives and fueling one of the greatest periods of innovation in human history. The technological achievements of this era are nothing short of astonishing. Thanks to inventions such as the steam engine and processes such as large-scale iron smelting, industrial entrepreneurs were able to mechanize labor, which allowed for a host of new efficiencies such as division of labor, mass production, and global distribution. You'll discover the science behind some of the most astounding inventions in modern history, including the spinning jenny, the incandescent light bulb, and the computer processor. You'll learn how these inventions came about and consider what effects these technologies had on every aspect of human life. Get an inside look at the history of industrial innovation and explore the lives of engineers, inventors, architects, and designers responsible for changing the world - as well as ordinary workers who lost their livelihoods to new technologies and suffered from unsafe working conditions. The story of the Industrial Revolution is complex, and these lectures will leave you with a new appreciation for the amazing human achievements all around us.

    This course explores the archeology, publication, content, and interpretations of the historical period of the scrolls.

    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.

    

    Geniuses—Monteverdi, Mozart, Verdi, Wagner, and Puccini—produced some of the landmark artistic achievements of all time in this form. With Professor Robert Greenberg to show you how, you can learn to understand, appreciate—even to love—opera in just 24 hours of lectures that are a pleasure to hear.With the knowledge of opera from this course, you will understand how music has the power to reveal truths beyond the spoken word; how opera is a unique marriage of words and music in which the whole is far greater than its parts. You will learn the reasons for opera's enduring popularity. And you will be able to explore in great depth the extraordinary and compelling world of opera.Professor Greenberg is to the lecture what Mozart was to opera. Brilliant, irreverent toward his subject and yet awed by it, he is ingenious in his approach to ensure that his work will have its intended effect on the listener.The music is transcendently beautiful. In this course, you will listen to some of the most extraordinary artistic works of all time.The history of opera is traced from its beginning in the early 17th century to around 1924. The lectures examine landmark operas; musical, cultural, and social developments that influenced opera's growth; and the influence of national languages and cultures on opera.Part I: The Full Flower and Its OriginsThe first eight lectures are foundational. You examine the origins of opera and the adaptations of other musical forms that allowed opera to achieve its full effects, first accomplished in Monteverdi's Orfeo of 1607.But Professor Greenberg does not hide the result while waiting on history to get us there. The course opens with one of the most powerful moments in opera—the dramatically loaded aria "Nessun dorma" ("No one shall sleep") from Giacomo Puccini's Turandot.In Turandot, you are exposed to opera's unique incorporation of soliloquy, dialogue, scenery, action, and continuous music into an incredibly expressive and exciting whole.This famous aria shows us the power of the composer—the power of creating music that goes beyond the words of the libretto to express thoughts and feelings that cannot be expressed in words.The study continues with a discussion of how music reveals character and the unconscious state. You are introduced to operatic archetypes such as Figaro and Carmen.You examine how the rediscovery of ancient Greek and Roman culture contributed to the riches of the Renaissance. You see the evolution of the madrigal, a form that was ultimately rejected in favor of a more expressive vocal medium: early opera.Part I of the course concludes with an analysis of the first successful attempt to combine words and music into musical drama, Monteverdi's Orfeo of 1607.Part II: The Aria, the Golden Age, Opera Seria, Opera BuffaRecitative, the essence of Monteverdi's style, made music subservient to words, but because of its forward-driving nature, recitative cannot express personal reflection.You learn how the invention of the aria gave opera composers a powerful tool to stop the dramatic action for characters' moments of self-reflection.Gluck's reforms and his Orfeo ed Euridice of 1762 are addressed as the starting point for the modern opera repertory. The explosion of operas in the Golden Age–Dark Age of opera is discussed. You learn how different voice types are assigned different roles, and how this has varied by culture.The rise of opera seria and its characteristics are discussed, along with an analysis of the second act of Mozart's Idomeneo—opera seria transcendent.You examine the development of opera buffa, from its origins in the popular folklore of the Commedia dell'Arte to its eventual replacement of opera seria. Mozart's brilliant The Marriage of Figaro is discussed as one of the greatest contributions to the opera buffa genre.Part III: Rossini and Verdi: The Development of French OperaYou see how the Italian language and culture gave rise to the bel canto style, with its comic plots, one-dimensional characters, appealing melodies, and florid melodic embellishments.Dr. Greenberg reveals how highly pressurized the business of opera was in the 18th century. Rossini once remarked, "In my time, all the impresarios of Italy were bald by 30." You are introduced to Rossini's The Barber of Seville of 1816 as the quintessential bel canto opera.You learn how Giuseppi Verdi broke the bel canto mold. He dominated Italian opera for over half a century by virtue of his lyricism, his emphasis on human emotions and psychological insight, and his use of the orchestra and parlante to drive the dramatic action and maintain musical continuity.Verdi's Otello is discussed as one of the greatest operas of all time.You next study French opera and why it became a distinctly different genre from Italian opera. Nineteenth-century French opera—grand opera, opéra comique, and lyric opera—are three distinctive French genres. You'll hear why in Act 2 of Bizet's dramatically powerful Carmen .Part IV: Wagner, Strauss, PucciniYou see how German singspiel, a play with music, grew from humble origins as a low-class entertainment to high art with Mozart's The Rescue from the Harem (1782) and The Magic Flute (1791). You learn how Carl Maria von Weber's Der Freischütz established 19th-century German opera.You then study Richard Wagner: his personal beliefs, musical theories, and operatic innovations. Wagner turned to the ancient Greek ideal for inspiration, and from it he conceived the idea of an all-encompassing artwork, or music drama, in which the orchestra plays the role of a purveyor of unspoken truths. Dr. Greenberg cites Wagner's Tristan und Isolde as the most influential composition of the 19th century, next to Beethoven's Ninth Symphony.Richard Strauss and his controversial opera Salome exemplifies late Romantic German opera.You examine Russian opera and nationalism. The late development of Russian opera is outlined from Mikhail Glinka's Ruslan and Lyudmila to Modest Mussorgsky's Boris Godunov. You see how the Russian language shaped the vocal style of Russian opera.The course concludes with an overview of opera verismo, a 19th- and 20th-century genre that favors depictions of the darker side of the human condition; a transcendent example of it is in the pivotal second act of Giacomo Puccini's Tosca.The essence of opera is debated as you hear part of a scene from Richard Strauss's Capriccio. Is it words, or is it music? It is an indefinable combination of both, with the whole greater than the parts.

    Now - with the technological advances of modern archaeology and a new perspective on world history - we are finally able to piece together their compelling true stories. In Ancient Civilizations of North America, Professor Edwin Barnhart, Director of the Maya Exploration Center, will open your eyes to a fascinating world you never knew existed - even though you've been living right next to it, or even on top of it, for as long as you've been on the continent.The peoples of ancient North America were exceptionally knowledgeable about their environment, but their intellectual and artistic curiosity went much beyond the immediate need for food and safety. Beginning thousands of years ago, and without benefit of written language, native peoples became mathematicians, construction and soil engineers, astronomers, urban planners, and more. They developed thriving cities, extensive trade routes, canals to bring water to the desert, and earthworks we still marvel over today.In 24 exciting lectures, you'll learn about the vibrant cities of Poverty Point, the first city in North America, built about 3,500 years ago, and Cahokia, the largest city of ancient North America. You'll explore the many ways in which the Chacoan environment provided cultural and religious focus for peoples of the southwest. And you'll learn about the Iroquoian source of some of our most basic "American" values.

    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!

    For example, the matter that comprises all stars, planets, and living things turns out to be just a fraction of what actually exists. Moreover, we think that we control our actions, but data analytics can predict, with astonishing accuracy, when we will wake up, what we will buy, and even whom we will marry.The quest to pin down what's real and what's illusory is both philosophical and scientific, a metaphysical search for ultimate reality that goes back to the ancient Greeks. For the last 400 years, this search has been increasingly guided by scientists, who create theories and test them in order to define and redefine reality. And we have developed the power to alter our own reality in major ways - to defeat diseases, compensate for disabilities, and augment our intellect with computers. Where is that trend going?Experience the thrill of this exciting quest in 36 wide-ranging lectures that touch on many aspects of the ceaseless search for reality. From the birth of the universe to brain science, discover that separating the real from the illusory is an exhilarating intellectual adventure.Scientists and philosophers are not alone in grappling, at an intellectual level, with reality. Some of the most accessible interpretations are by painters, novelists, filmmakers, and other artists whose works not only draw on the latest discoveries but also sometimes inspire them. Explore examples such as Alice in Wonderland, pointillism, cubism, surrealism, and reality TV.And since dealing with reality is an experience we all share, this course is designed for people of all backgrounds.

     Great writing begins with the sentence. Whether it’s two words (“Jesus wept.”) or William Faulkner’s 1,287-word sentence in Absalom! Absalom!, sentences have the power to captivate, entertain, motivate, educate, and, most importantly, delight. Yet, the sentence-oriented approach to writing is too often overlooked in favor of bland economy. Building Great Sentences teaches you to write better sentences by luxuriating in the pleasures of language. Award-winning Professor Brooks Landon draws on examples from masters of long, elegant sentences—including Don DeLillo, Virginia Woolf, Joan Didion, and Samuel Johnson—to reveal the mechanics of how language works on thoughts and emotions, providing the tools to write powerful, more effective sentences.

    In this course, you will explore the political, social, cultural, and economic revolutions that transformed Europe between the arrival of the Black Death in the 14th century and the onset of the Age of Enlightenment in the 18th century.