Ancient Egyptian civilization is so grand our minds sometimes have difficulty adjusting to it. It lasted 3,000 years, longer than any other on the planet. Its Great Pyramid of Cheops was the tallest building in the world until well into the 19th century and remains the only Ancient Wonder still standing. And it was the most technologically advanced of the ancient civilizations, with the medical knowledge that made Egyptian physicians the most famous in the world.

How the Earth Works takes you on an astonishing journey through time and space. In 48 lectures, you will look at what went into making our planet - from the big bang, to the formation of the solar system, to the subsequent evolution of Earth.

The story of our world and the different living things that have populated it is an amazing epic with millions of species, exotic settings, planet-wide cataclysms, and surprising plot twists. These 36 lectures tell the all-embracing story of life on Earth - its origins, extinctions, and evolutions - in a manner that assumes no background in science. At half an hour per lecture, you’ll cover the entire 4.54-billion-year history of Earth in 18 hours, averaging 70,000 years per second!

Grasp the important ideas that have served as the backbone of philosophy across the ages with this extraordinary 60-lecture series. This is your opportunity to explore the enormous range of philosophical perspectives and ponder the most important and enduring of human questions-without spending your life poring over dense philosophical texts.

For most of its 5,000-year existence, China has been the largest, most populous, wealthiest, and mightiest nation on Earth. And for us as Westerners, it is essential to understand where China has been in order to anticipate its future. These 36 eye-opening lectures deliver a comprehensive political and historical overview of one of the most fascinating and complex countries in world history.

What is the meaning of life?It's a question every thoughtful person has pondered at one time or another. Indeed, it may be the biggest question of all-at once profound and universal, but also deeply personal.We want to understand the world in which we live, but we also want to understand how to make our own lives as meaningful as possible; to know not only why we're living, but that we're doing it with intention, purpose, and ethical commitment.

Look beyond the abstract dates and figures, kings and queens, and battles and wars that make up so many historical accounts. Over the course of 48 richly detailed lectures, Professor Garland covers the breadth and depth of human history from the perspective of the so-called ordinary people, from its earliest beginnings through the Middle Ages.

Language defines us as a species, placing humans head and shoulders above even the most proficient animal communicators. But it also beguiles us with its endless mysteries, allowing us to ponder why different languages emerged, why there isn't simply a single language, how languages change over time and whether that's good or bad, and how languages die out and become extinct.

Throughout history, military engagements have altered the course of historical events. In these 36 dynamic lectures, Professor Aldrete leads you in discovering the military conflicts that have had the greatest impact in shifting the direction of events and defining our world. Across 4,000 years of history, you'll explore nearly 40 key military engagements, from the milestone battles of Western civilization to their counterparts in the Middle East, India, and Asia.

Eating is an indispensable human activity. 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 this 24-lesson course aimed at non-scientists, noted particle physicist Dr. Don Lincoln of Fermi National Accelerator Laboratory covers more than a century of progress in physics, describing exactly how scientists reach the conclusions they do. He starts with the atom, which was long hypothesized but wasn’t definitively proven until a paper by Albert Einstein in 1905. That was just the beginning, as researchers probed ever deeper into the atom’s complex structure, leading to the weird findings of quantum mechanics.

For most of its 5,000-year existence, China has been the largest, most populous, wealthiest, and mightiest nation on Earth. And for us as Westerners, it is essential to understand where China has been in order to anticipate its future. These 36 eye-opening lectures deliver a comprehensive political and historical overview of one of the most fascinating and complex countries in world history.You'll learn about the powerful dynasties that ruled China for centuries; the philosophical and religious foundations-particularly Confucianism, Daoism, and Buddhism-that have influenced every iteration of Chinese thought, and the larger-than-life personalities, from both inside and outside its borders, of those who have shaped China's history. As you listen to these lectures, you'll see how China's politics, economics, and art reflect the forces of its past.From the "Mandate of Heaven," a theory of social contract in place by 1500 B.C.E., 3,000 years before Western philosophers such as Thomas Hobbes and John Locke, to the development of agriculture and writing independent of outside influence to the technologically-advanced Han Dynasty during the time of the Roman Empire, this course takes you on a journey across ground that has been largely unexplored in the history courses most of us in the West have taken.In guiding you through the five millennia of China's history, Professor Hammond tells a fascinating story with an immense scope, a welcome reminder that China is no stranger to that stage and, indeed, has more often than not been the most extraordinary player on it.

By understanding the dramatic story of the Ottoman Empire - from its early years as a collection of raiders and conquerors to its undeniable power in the 15th and 16th centuries to its catastrophic collapse in the wreckage of the First World War - one can better grasp the current complexities of the Middle East. Befitting a story of such epic scope and grandeur, every lecture is a treasure trove of historical insights into the people, events, themes, and locales responsible for shaping the story of this often-overlooked empire.

Beginning with the Renaissance, the culture of the West exploded. Over the next 600 years, rapid innovations in philosophy, technology, economics, military affairs, and politics allowed what had once been a cultural backwater left by the collapse of the Roman Empire to dominate the world. This comprehensive series of 48 lectures by an award-winning teacher and captivating lecturer will show you how - and why - this extraordinary transformation took place.

Everything we now know about the universe - from the behavior of quarks to the birth of galaxies - has come from people who've been willing to ponder the unanswerable. And with the advent of modern science, great minds have turned to testing and experimentation rather than mere thought as a way of grappling with some of the universe's most vexing dilemmas. So what is our latest picture of some of the most inexplicable features of the universe? What still remains to be uncovered and explored by today's scientists?

From evoking a scene to charting a plot to revising your drafts, Writing Great Fiction: Storytelling Tips and Techniques offers a master class in storytelling. Taught by award-winning novelist James Hynes, a former visiting professor at the famed Iowa Writers' Workshop, these 24 insightful lectures show you the ins and outs of the fiction writer's craft.

Meditation offers deep and lasting benefits for mental functioning and emotional health, as well as for physical health and well-being. These 24 detailed lectures teach you the principles and techniques of sitting meditation, the related practice of walking meditation, and the highly beneficial use of meditative awareness in many important activities, including eating and driving. You will also learn how to use the skills of meditation in working with thoughts and emotional states.

In Your Best Brain, Professor John J. Medina - an award-winning scientist, New York Times best-selling author, and leading advocate for brain research - delivers 24 exciting lectures that probe the origins of consciousness, memory, emotion, attention, intelligence, and beyond. He focuses on five key areas of study in neuroscience: the brain’s physical structure and function, and how it enabled us to become the planet’s apex predator.

The course is organized around a mnemonic device, developed by Professor Freeman, that can serve in any negotiation situation. Called "I FORESAW IT," this indispensable framework guides you in assembling the strongest possible case, showing you how to evaluate such factors as creative options, independent criteria, and your best alternative to a negotiated agreement.

As raiders and explorers, the Vikings played a decisive role in the formation of Latin Christendom, and particularly of western Europe. Now, in a series of 36 vivid lectures by an honored teacher and classical scholar, you have the opportunity to understand this remarkable race as never before, studying the Vikings not only as warriors, but in all of the other roles in which they were equally extraordinary - merchants, artists, kings, raiders, seafarers, shipbuilders, and creators of a remarkable literature of myths and sagas.

Ancient Egyptian civilization is so grand our minds sometimes have difficulty adjusting to it. It lasted 3,000 years, longer than any other on the planet. Its Great Pyramid of Cheops was the tallest building in the world until well into the 19th century and remains the only Ancient Wonder still standing. And it was the most technologically advanced of the ancient civilizations, with the medical knowledge that made Egyptian physicians the most famous in the world.

To take a skeptical approach to American history is not to dabble in imaginative conspiracy theories; rather, it's to reframe your understanding of this great nation's past and actually strengthen your appreciation for what makes American history such a fascinating chapter in the larger story of Western civilization. And in this bold 24-lecture series, you can do just that.

Look beyond the abstract dates and figures, kings and queens, and battles and wars that make up so many historical accounts. Over the course of 48 richly detailed lectures, Professor Garland covers the breadth and depth of human history from the perspective of the so-called ordinary people, from its earliest beginnings through the Middle Ages.

Great music is a language unto its own, a means of communication of unmatched beauty and genius. And it has an undeniable power to move us in ways that enrich our lives-provided it is understood.If you have ever longed to appreciate great concert music, to learn its glorious language and share in its sublime pleasures, the way is now open to you, through this series of 48 wonderful lectures designed to make music accessible to everyone who yearns to know it, regardless of prior training or knowledge.

Eating is an indispensable human activity. 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."

"It doesn't take an Einstein to understand modern physics," says Professor Wolfson at the outset of these 24 lectures on what may be the most important subjects in the universe: relativity and quantum physics. Both have reputations for complexity. But the basic ideas behind them are, in fact, simple and comprehensible by anyone. These dynamic and illuminating lectures begin with a brief overview of theories of physical reality starting with Aristotle and culminating in Newtonian or "classical" physics.