Understanding our humanity - the essence of who we are - is one of the deepest mysteries and biggest challenges in modern science. Why do we have bad moods? Why are we capable of having such strange dreams? How can metaphors in our language hold such sway on our actions? As we learn more about the mechanisms of human behavior through evolutionary biology, neuroscience, anthropology, and other related fields, we're discovering just how intriguing the human species is.

In the 24 engaging lectures of The Nature of Matter, no scientific background is needed to appreciate such miracles of everyday life as a bouncing rubber ball or water's astonishing power to dissolve. Moreover, the study of matter has led directly to such inventions as semiconductor circuits for computers, new fabrics for clothes, and powerful adhesives for medicine and industry.

An invisible world of astonishing complexity is all around you. A world so small you can’t see it with the naked eye. A world so crowded that its population staggers the mind. A world in which you participate every day - often without even knowing it. The inhabitants of this world are trillions of bacteria, viruses, fungi, and other organisms, collectively known as microbes. Hundreds of thousands could fit on the period at the end of this sentence. And many play a powerful role in your life.

Nothing has had a more profound impact on the development of modern civilization than thermodynamics. Thermodynamic processes are at the heart of everything that involves heat, energy, and work, making an understanding of the subject indispensable for careers in engineering, physical science, biology, meteorology, and even nutrition and culinary arts. Get an in-depth tour of this vital and fascinating science in 24 enthralling lectures suitable for everyone from science novices to experts who wish to review elementary concepts and formulas.

Join Professor David Brakke, an award-winning Professor of History at The Ohio State University, for Understanding the New Testament. In these 24 eye-opening lectures, he takes you behind the scenes to study not only the text of the New Testament, but also the authors and the world in which it was created. You will explore Jewish lives under Roman occupation, reflect on the apocalyptic mood of the first and second centuries AD, witness the early Christians’ evangelism beyond the Jewish communities, and witness the birth of a faith that continues to shape our world today.

The Science of Information: From Language to Black Holes covers the exciting concepts, history, and applications of information theory in 24 challenging and eye-opening half-hour lectures taught by Professor Benjamin Schumacher of Kenyon College. A prominent physicist and award-winning educator at one of the nation’s top liberal arts colleges, Professor Schumacher is also a pioneer in the field of quantum information, which is the latest exciting development in this dynamic scientific field.

In The Vietnam War, you will learn about the causes and consequences of the war in Vietnam. You will explore the scope of American intervention from air campaigns to large-scale military operations on the ground. You will survey the history of Vietnam from colonial Indochina onward, getting to know the homegrown ideas, personalities, and politics that would come to shape the conflict. You will reconstruct major military operations like the Tet Offensive and Rolling Thunder.

From the earliest recorded history of the Russian state, its people have sought to define their place in the world. And while many of us look to make sense of Russia through its political history, in many ways a real grasp of this awe-inspiring country comes from looking closely at its cultural achievements. The 24 lectures of Understanding Russia: A Cultural History survey hundreds of years of Russian culture, from the world of Ivan the Terrible to the dawn of the Soviet Union to the post-war tensions of Putin’s Russia.

Consider these commonly held scientific beliefs: Planetary orbits are fixed ellipses; we only use 10 percent of our brains; nothing travels faster than light; a thrown object’s trajectory is a parabola. They seem correct, but they’re all misconceptions that aren’t entirely accurate. There’s much more to the story than you think. These magnificent 24 lectures are devoted to busting myths, clearing up confusion, and giving you scientific epiphanies that could change how you think about your everyday world.

From spirituality to politics and science, the occult has had an astonishing influence on the human experience across the centuries. It may surprise you to learn that everyday activities like attending church services or reading your daily horoscope all fit the broad definition of the occult. As you will see in the 24 illuminating episodes of Secrets of the Occult, the mystic and obscure are threaded through our ordinary lives in more ways than you may realize.