Medical School for Everyone: Grand Rounds Cases
When you’re sick, you go to a doctor to figure out what’s wrong. But how…
Major Transitions in Evolution
How and when did life on Earth get to be the way it is today?
Life in the World’s Oceans
For thousands of centuries, humans lived near the ocean, wandered right up to its edge,…
Introduction to C++: Programming Concepts and Applications
Considering how many hours we spend with computers—phones, laptops, even “smart” screens on our home…
Introduction to Astrophysics
Everyone loves to observe the beauty of the star-studded night sky, to say nothing of…
Human Body – How We Fail, How We Heal
Your body is a fortress under constant assault. Infectious diseases, parasites, environmental toxins, physical trauma,…
How to Program, Computer Science Concepts and Python Exercises
Learning a new language opens a wealth of opportunities. But there’s one language family that…
Great Ideas of Classical Physics
There is a hidden order in the ceaselessly changing world around us. It's called classical…
Fundamentals of Sustainable Living
Become a more thoughtful consumer, save money, and reduce your ecological footprint with this course…
Understanding the Human Body: An Introduction to Anatomy and Physiology
You live with it 24 hours a day. But how well do you really know…
Medical School for Everyone – Emergency Medicine
You’re a doctor 11 hours into your shift, and you’ve just walked into a waiting…
The Skeptic’s Guide to Health, Medicine, and the Media
If you’ve ever sneezed while driving your car, did you immediately think, “Cars Cause the…
Cosmology: The History and Nature of Our Universe
Evidence for the birth of the universe is raining down on you. It's called the…
Black Holes Tides and Curved Spacetime: Understanding Gravity
The force of gravity rules the universe. It governs our everyday lives on Earth and…
Biological Anthropology: An Evolutionary Perspective
When we consider ourselves, not as static beings fixed in time but as dynamic, ever-changing…
Chemistry, 2nd Edition
Many students struggle in high school chemistry. Even if they succeed in earning a good…
Experiencing Hubble: Exploring the Milky Way
On a dark, clear night, a magnificent band of hazy light arches overhead that ancient…
Experiencing Hubble – Understanding the Greatest Images of the Universe
A few hundred miles above Earth, there is a remarkable telescope with a crystal-clear view…
Earth at the Crossroads, Understanding the Ecology of a Changing Planet
Every plant, microorganism, and animal on Earth exists within an ecosystem: a complex network of…
Do-It-Yourself: Engineering
Everyone appreciates a well-designed bridge, a sturdy skyscraper, or a flightworthy aircraft. But how many…
Dark Matter, Dark Energy: The Dark Side of the Universe
There's more to the universe than meets the eye—a lot more. In recent years, scientists…