Logic is intellectual self-defense against such assaults on reason and also a method of quality control for checking the validity of your own views. But beyond these very practical benefits, informal logic—the kind we apply in daily life—is the gateway to an elegant and fascinating branch of philosophy known as formal logic, which is philosophy’s equivalent to calculus. Formal logic is a breathtakingly versatile tool. Much like a Swiss army...

Quantum mechanics gives us a picture of the world so radically counterintuitive that it has changed our perspective on reality itself. In Quantum Mechanics: The Physics of the Microscopic World, award-winning Professor Benjamin Schumacher gives you the logical tools to grasp the paradoxes and astonishing insights of this field.

Fertility. Envy. Success. These are just a few of the many common associations the brain makes with the color green. Here, Professor Lidwell takes you even deeper into this lush color, guiding you through an exploration of two lesser-known contexts of green: as a way to foster creativity and a way to reduce anxiety and mental fatigue.

The beginnings of the end of Eastern European communism came with the firing of a shipyard worker in Gdansk, which led to a workers uprising and the founding of the Solidarity political movement. Dive into these exciting events, from rebellion to state crackdown, and meet some of the key players who altered the course of history..

Finish the course with a capstone look at how one can live creatively as well as think creatively. Some of the inspirational principles of a creative life that you'll look at include reclaiming your creativity, going big or going home, creating multiple options for yourself, and suspending disbelief in order to live and practice a more creative approach to every aspect of your life.

Colors abound in the natural world, so it's essential for landscape photographers to understand how they mix-and how people respond to them. Taking you to places like Acadia National Park and Adirondack State Park, Mr. Melford shows you how to play with color in your photos.

Continue working with vocabulary related to clothing, and practice describing clothing. Then study Spanish indirect object pronouns—pronouns that replace indirect objects—and learn verbs that commonly use them. Last, explore some additional strategies for learning and remembering new vocabulary..

Many political and cultural events sent shockwaves through the Irish world in the 19th and early 20th centuries as Ireland gradually shook off the shackles of British rule. Alongside a long and painful political process arose one of the greatest flourishings of literature in modern times. The Irish Revival that occurred around the turn of the 20th century fused and elevated aesthetic and civic ambitions, fueling a cultural climate of masterful artistic...

Start your tour of the geological wonders of North America’s national parks with Yellowstone, where the breathtaking landscape inspired the idea of a national park. Focus on the processes that produce Yellowstone’s many geothermal formations, particularly its geysers..

No one wants to go to an emergency department. While you can never protect yourself 100%, there are ways to help avoid having to make a trip there. Here, learn about the importance of cancer screenings, vaccinations, and taking medication. A little prevention, it turns out, makes a big difference..