The Bon Appétit Test Kitchen is on a quest for perfection, from the perfect pizza to what makes the perfect Thanksgiving meal.

Positive Psychology is a relatively new branch of psychology as introduced in 1998 by Professor Martin Seligman, but it has quickly developed a large following amongst practitioners around the globe. It concentrates on studying and promoting positive human functioning, and developing effective interventions that help to support thriving individuals, families, and communities. Positive psychology aims to go beyond just treating mental illness, and...

We commonly define the Pythagorean theorem using the formula a2 + b2 = c2. But Pythagoras himself would have been confused by that. Explore how this famous theorem can be explained using common geometric shapes (no fancy algebra required), and how it’s a critical foundation for the rest of geometry.

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.

Shift your attention from biology to archaeology, where you will dig up several answers about the Homo sapiens family tree. Here, Professor Lacy introduces what archaeologists do and how they work. He then examines the history of tools such as the hand-ax and the microlith, which had a tremendous impact on human population.

Delve into Bertrand Russell's profoundly simple paradox that undermined Cantor's theory of sets. Then follow the scramble to fix set theory and all of mathematics with a new set of axioms, designed to avoid all paradoxes and keep mathematics consistent - a goal that was partly met by the Zermelo-Fraenkel set theory.

Learn how astronomers use very-long-baseline interferometry (VLBI) with telescopes thousands of miles apart to essentially create a radio telescope as big as the Earth. With VLBI, scientists not only look deep into galactic centers, study cosmic radio sources, and weigh black holes, but also more accurately tell time, study plate tectonics, and more - right here on planet Earth.

Put your dots-and-boxes machine to work solving long-division problems, making them easy while shedding light on the rationale behind the confusing long-division algorithm taught in school. Then watch how the machine quickly handles scary-looking division problems in polynomial algebra.

When huge pieces of Fantasia are beginning to disappear, including the Childlike Empress' memories, it's up to Bastian to find out what's going on. Travelling first on Falkor to the Southern Oracle, then with Engywook on the Kitzblits Flying Machine to Yor's Minround Mine of Memories, Bastian learns that the culprit is none other than Xayide.

What's going on in your cognitive machinery as you manufacture your decision? Delve into the two-system model of decision making: System 1 is your automatic and intuitive processor, your earlier system from an evolutionary perspective; and System 2 is the flexible, powerful serial processor that you think of as "you."