It's not just a list of "superfoods" or trendy exercises; the course takes a rigorous scientific approach to human vitality. Energy is a limited resource; learn to allocate yours in the best way possible to make the most of each day.

    These 24 thought-provoking lectures offer you the chance to reflect on some of the most powerful moral issues we face in our daily lives: Is it ever OK to lie? What are our moral obligations to others? What is the key to living the good life? From Plato to Kant to Bonhoeffer, you'll see how some of the world's greatest thinkers from across the ages have approached similar problems. Professor Martin provides a complete picture of various ethical schools and approaches and applies this rich philosophical overview to "case studies" relevant to our contemporary lives. You'll explore all the ins and outs of issues such as business ethics, love and marriage, privacy and technology, genetic engineering, animal rights, and much more. Engaging stories and thought experiments bring these issues to life, showing what different philosophical theories have to say about real-world ethical dilemmas. According to Professor Martin, the trick is to understand that the mind is like a parachute; it only works when it's open. Rather than take a side in any particular debate, this course provides a framework for thinking through a host of debates and dilemmas from all sides. Through it all, Professor Martin is a sympathetic guide, helping you think through some of our most complex decisions.

    It's ever-present. Without it, you would die in minutes. And it has an epic story to tell.In Caesar's Last Breath, New York Times bestselling author Sam Kean takes us on a journey through the periodic table, around the globe, and across time to tell the story of the air we breathe, which, it turns out, is also the story of earth and our existence on it.With every breath, you literally inhale the history of the world. On the ides of March, 44 BC, Julius Caesar died of stab wounds on the Senate floor, but the story of his last breath is still unfolding; in fact, you're probably inhaling some of it now. Of the sextillions of molecules entering or leaving your lungs at this moment, some might well bear traces of Cleopatra's perfumes, German mustard gas, particles exhaled by dinosaurs or emitted by atomic bombs, even remnants of stardust from the universe's creation.Tracing the origins and ingredients of our atmosphere, Kean reveals how the alchemy of air reshaped our continents, steered human progress, powered revolutions, and continues to influence everything we do. Along the way, we'll swim with radioactive pigs, witness the most important chemical reactions humans have discovered, and join the crowd at the Moulin Rouge for some of the crudest performance art of all time. Lively, witty, and filled with the astounding science of ordinary life, Caesar's Last Breath illuminates the science stories swirling around us every second.

    As much as we'd like to cultivate these same skills, the truth is that you cannot know how a lawyer thinks and works without studying the law itself.Now there's an easier way to get the same foundational knowledge as lawyers - without the enormous time and financial commitment. Over the span of 48 lectures, four experienced lawyers and teachers recreate key parts of the first-year law student experience, introducing you to main areas of law most every beginning student studies.You'll start with 12 lectures on litigation and legal practice that offer eye-opening answers to many questions about the art and craft of legislation. In the second 12 lectures, you'll learn how criminal law and procedure - an area of law dramatized by countless TV shows - really works. Additional lectures investigate the civic procedures courts follow to resolve disputes about substantive rights and examine broader questions any system of litigation must address. And 12 lectures are devoted entirely to the stranger-than-fiction topic of tort law.Enriched with famous cases from the annals of American law and powerful arguments by some of history's most successful lawyers, these lectures offer access to an often intimidating, surprisingly accessible, and civically important field.

    An epic, first-of-its-kind book, entwining leading-edge scientific discovery with the intimate stories of four individual lives, by the Pulitzer Prize–winning New York Times journalist.A terminal cancer patient rises from the grave. A medical marvel defies HIV. Two women with autoimmunity discover their own bodies have turned against them. Matt Richtel's An Elegant Defense uniquely entwines these intimate stories with science’s centuries-long quest to unlock the mysteries of sickness and health, and illuminates the immune system as never before.The immune system is our body’s essential defense network, a guardian vigilantly fighting illness, healing wounds, maintaining order and balance, and keeping us alive. Its legion of microscopic foot soldiers—from T cells to “natural killers”—patrols our body, linked by a nearly instantaneous communications grid. It has been honed by evolution over millennia to face an almost infinite array of threats.For all its astonishing complexity, however, the immune system can be easily compromised by fatigue, stress, toxins, advanced age, and poor nutrition—hallmarks of modern life—and even by excessive hygiene. Paradoxically, it is a fragile wonder weapon that can turn on our own bodies with startling results, leading today to epidemic levels of autoimmune disorders.Richtel effortlessly guides readers on a scientific detective tale winding from the Black Plague to twentieth-century breakthroughs in vaccination and antibiotics, to the cutting-edge laboratories that are revolutionizing immunology—perhaps the most extraordinary and consequential medical story of our time. The foundation that Richtel builds makes accessible revelations about cancer immunotherapy, the microbiome, and autoimmune treatments that are changing millions of lives. An Elegant Defense also captures in vivid detail how these powerful therapies, along with our behavior and environment, interact with the immune system, often for the good but always on a razor’s edge that can throw this remarkable system out of balance.Drawing on his groundbreaking reporting for the New York Times and based on extensive new interviews with dozens of world-renowned scientists, Matt Richtel has produced a landmark book, equally an investigation into the deepest riddles of survival and a profoundly human tale that is movingly brought to life through the eyes of his four main characters, each of whom illuminates an essential facet of our “elegant defense.”

    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.

    But in recent decades, these claims have eroded, or even been disproven outright, by a revolution in the study of animal cognition. Take the way octopuses use coconut shells as tools; elephants that classify humans by age, gender, and language; or Ayumu, the young male chimpanzee at Kyoto University whose flash memory puts that of humans to shame. Based on research involving crows, dolphins, parrots, sheep, wasps, bats, whales, and of course chimpanzees and bonobos, Frans de Waal explores both the scope and the depth of animal intelligence. He offers a firsthand account of how science has stood traditional behaviorism on its head by revealing how smart animals really are, and how we’ve underestimated their abilities for too long.People often assume a cognitive ladder, from lower to higher forms, with our own intelligence at the top. But what if it is more like a bush, with cognition taking different forms that are often incomparable to ours? Would you presume yourself dumber than a squirrel because you’re less adept at recalling the locations of hundreds of buried acorns? Or would you judge your perception of your surroundings as more sophisticated than that of a echolocating bat? De Waal reviews the rise and fall of the mechanistic view of animals and opens our minds to the idea that animal minds are far more intricate and complex than we have assumed. De Waal’s landmark work will convince you to rethink everything you thought you knew about animal—and human—intelligence.

    The significance of the subject is apparent. From the late Roman Empire all the way to our own time, no continuously existing institution or belief system has wielded as much influence as Christianity, no figure as much as Jesus.Worshiped around the globe by more than a billion people today, he is undoubtedly the single most important figure in the story of Western civilization and one of the most significant in world history altogether.Everyone who has even the faintest knowledge of Jesus has an opinion about him, says Professor Bart D. Ehrman, and these opinions vary widely.Those differences are visible not only among laypeople but even among professional scholars who have devoted their lives to the task of reconstructing what the historical Jesus was probably like and what he most likely said and did.In this course, you learn what the best historical evidence seems to indicate as you listen to lectures developed with no intention of affirming or denying any particular theological beliefs.Professor Ehrman—who created this course as a companion to his 24-lecture Teaching Company course on The New Testament—approaches the question from a purely historical perspective. He explains why it has proven so difficult to know about this "Jesus of history." And he reveals the kinds of conclusions modern scholars have drawn about him.

    In the great halls of science, dogma holds that Darwin's theory of natural selection explains every branch on the tree of life: which species thrive, which wither away to extinction, and what features each evolves. But can adaptation by natural selection really account for everything we see in nature? Yale University ornithologist Richard Prum--reviving Darwin's own views--thinks not. Deep in tropical jungles around the world are birds with a dizzying array of appearances and mating displays: Club-winged Manakins who sing with their wings, Great Argus Pheasants who dazzle prospective mates with a four-foot-wide cone of feathers covered in golden 3D spheres, Red-capped Manakins who moonwalk. In thirty years of fieldwork, Prum has seen numerous display traits that seem disconnected from, if not outright contrary to, selection for individual survival. To explain this, he dusts off Darwin's long-neglected theory of sexual selection in which the act of choosing a mate for purely aesthetic reasons--for the mere pleasure of it--is an independent engine of evolutionary change. Mate choice can drive ornamental traits from the constraints of adaptive evolution, allowing them to grow ever more elaborate. It also sets the stakes for sexual conflict, in which the sexual autonomy of the female evolves in response to male sexual control. Most crucially, this framework provides important insights into the evolution of human sexuality, particularly the ways in which female preferences have changed male bodies, and even maleness itself, through evolutionary time. The Evolution of Beauty presents a unique scientific vision for how nature's splendor contributes to a more complete understanding of evolution and of ourselves.

    

    But to think of the Constitution as a fully-formed, canonical document is to miss out on an honest, well-rounded grasp of American history. Now, more than ever, any well-informed citizen should understand how the Constitution lives, breathes, and endures. In collaboration with Smithsonian, these 36 lectures are a deep dive into the creation of the US Constitution as it actually happened - and the remarkable men who played their own unique role in the creation (and survival) of American democracy. Designed to be enjoyed in chronological order, they take you from the closing days of the American Revolution to the opening decades of the United States under the newly created US Constitution. Told like a dramatic story, each lecture uses a Founder as a doorway through which to examine the process involved in crafting the Constitution. You'll encounter fresh perspectives on familiar Founders including George Washington, Thomas Jefferson, James Madison, and Alexander Hamilton, as well as people not necessarily considered Founders, including James McHenry, Secretary of War under John Adams; and Alexis de Tocqueville, author of the insightful Democracy in America. While detailed, the lectures are highly accessible for all learners, high school students and history buffs alike. Less a biography of individuals, Professor Guelzo's lectures are instead a composite biography of one of the greatest political documents in history

    From the rising and setting of the sun to the cycles of nature, the thought processes in our brains, and the biorhythms in our day, nothing so pervades our existence and yet is so difficult to explain. Time seems to be woven into the very fabric of the universe. But why? Consider these contrasting views of time: A movie of a person diving into a pool has an obvious arrow of time. When the movie is played backward, everyone recognizes that it shows an event that would never occur in the real world. But zoom in on any part of this scene at the atomic scale and the movie can be run backward or forward and be indistinguishable. Either way, the particle interactions are consistent with the laws of physics. Why does one movie have an arrow of time moving in only one direction and the other does not? Surprisingly, the search for an answer leads through some of the most pioneering fields of physics, including thermodynamics, relativity, quantum theory, and cosmology. The key concept is called "entropy," which is related to the second law of thermodynamics, considered by many scientists to be the most secure law in all of physics. But that's only the beginning, since the quest for the ultimate theory of time draws on such exciting ideas as black holes, cosmic inflation, and dark energy, before closing in on a momentous question that until recently was considered unanswerable: What happened before the big bang? In 24 riveting half-hour lectures, Mysteries of Modern Physics: Time takes you on a mind-expanding journey through the past, present, and future, guided by Professor Sean Carroll, noted author and Senior Research Associate in Physics at the California Institute of Technology.

    As a result, whether we realize it or not, the drive to obtain food has been a major catalyst across all of history, from prehistoric times to the present. Epicure Jean-Anthelme Brillat-Savarin said it best: "Gastronomy governs the whole life of man." In fact, civilization itself began in the quest for food. Humanity's transition to agriculture was not only the greatest social revolution in history, but it directly produced the structures and institutions we call "civilization." In 36 fascinating lectures, award-winning Professor Albala puts this extraordinary subject on the table, taking you on an enthralling journey into the human relationship to food. With this innovative course, you'll travel the world discovering fascinating food lore and culture of all regions and eras - as an eye-opening lesson in history as well as a unique window on what we eat today.

    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.

    Study these crucibles of history to gain a better understanding of why a civilization took - or didn't take - a particular path. Full of dramatic reversals of fortune and colorful characters, this course examines some of the world's most notable examples of military misfortune, from the humiliating destruction of a Roman army at Carrhae in 53 BC to the tragic landings at Gallipoli in World War I. Success and failure, as you'll learn, are two sides of the same coin.These 24 lectures reveal how the trajectory of history hangs in the balance of individual battles; even a single person's actions in a particular moment have made drastic and irreversible impacts. From ancient Greece through global war during the first half of the 20th century, you'll delve into infamous conflicts such as the Charge of the Light Brigade and the Battle of Little Bighorn as well as lesser-known battles.How could an army equipped with cannon be wiped out by Zulu warriors wielding spears and outdated firearms? How could armored French knights be vulnerable to the crude weapons of a band of Flemish shopkeepers? Why would a savvy Chinese general fall victim to a tactic he had previously used himself? Unpredictable twists of fate abound, demonstrating that when it comes to war, there are no givens. Sheer numbers, superior weaponry, and skilled leadership are never a guarantee of success.Take a fascinating journey through some of the most gloriously inglorious wartime encounters. Along the way, you'll get to know some of the most legendary characters in world history.