Arizona Wildcat

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

As the tide of the Civil War turned in the spring of 1865, Abraham Lincoln took a dangerous two-week trip to visit the troops on the front lines accompanied by his young son, seeing combat up close, meeting liberated slaves in the ruins of Richmond, and comforting wounded Union and Confederate soldiers.

Fans fell in love with Eliza Hamilton - Alexander Hamilton’s devoted wife - in Lin-Manuel Miranda’s phenomenal musical Hamilton. But they don’t know her full story. A strong pioneer woman, a loving sister, a caring mother, and, in her later years, a generous philanthropist, Eliza had many sides - and this fascinating biography brings her multifaceted personality to vivid life.

Maps have a mysterious hold over us. Whether ancient, crumbling parchments or generated by Google, maps tell us things we want to know, not only about our current location or where we are going but about the world in general. And yet, when it comes to geo-politics, much of what we are told is generated by analysts and other experts who have neglected to refer to a map of the place in question.

The Bolsheviks promised that they were building a new society, a workers’ paradise that would change the nature of mankind itself. What they ended up constructing was the largest prison the world had ever seen: a Union of Soviet Socialist Republics that spanned half the globe.

Something strange is going on in the cosmos. Scientists are uncovering a catalogue of weird phenomena that simply can’t be explained by our long-established theories of the universe. After decades of fruitless searching, could we finally be catching glimpses of a profound new view of our physical world? Or are we being fooled by cruel tricks of the data? In Space Oddities, Harry Cliff, a physicist who does cutting-edge work on the Large Hadron Collider, provides a riveting look at the universe’s most confounding puzzles.

The Viking Age - from 750 to 1050 saw an unprecedented expansion of the Scandinavian peoples into the wider world. As traders and raiders, explorers and colonists, they ranged from eastern North America to the Asian steppe. But for centuries, the Vikings have been seen through the eyes of others, distorted to suit the tastes of medieval clerics and Elizabethan playwrights, Victorian imperialists, Nazis, and more. None of these appropriations capture the real Vikings, or the richness and sophistication of their culture.

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.

Do you ever wonder what is happening inside your brain when you feel anxious, panicked, and worried? In Rewire Your Anxious Brain, psychologist Catherine Pittman and author Elizabeth Karle offer a unique, evidence-based solution to overcoming anxiety, based in cutting-edge neuroscience and research.

An upstart French duke who sets out to conquer the most powerful and unified kingdom in Christendom. An invasion force on a scale not seen since the days of the Romans. One of the bloodiest and most decisive battles ever fought.