By 2050, the global population is projected to reach 9.8 billion. How are we going to feed everyone? Investment-banker-turned-farmer Stuart Oda points to indoor vertical farming: growing food on tiered racks in a controlled,...

We’ve gotten maybe too good at fishing, and as a result we’ve completely transformed the oceans. So what can we do to make fishing more sustainable and still enjoy our fish and chips?

It seems like stimulants and hyperactivity shouldn't mix, so why are they so often prescribed to treat ADHD?

It's 1954. Vietnamese nationalists are on the verge of securing an independent Vietnam under communist leader Ho Chi Minh. U.S. President Eisenhower claims that by virtue of the "falling domino principle," communist control of Vietnam...

Self-reflection could link to negative feelings, but it could also be helpful if you know how to avoid those pitfalls. So let’s learn how self-reflection works and get to know yourself in a healthy way!

Hank guides us through the process of natural selection, the key mechanism of evolution.

What can some of literature's most famous heroes teach us? From the epic hero (like Beowulf) to the tragic hero (like Oedipus), each has something distinctive to share. April Gudenrath describes the many faces of the fictional hero --...

What are logarithms and why are they useful? Get the basics on these critical mathematical functions -- and discover why smart use of logarithms can determine whether your eyes turn red at the swimming pool this summer. Lesson by Steve...

The Neuroscience of Friendship: Why Your Brain Rewards You for Time with Friends

See photos of this gorgeous two-bedroom rental apartment, which includes a bold, reimagined kitchen.

The video explains the various organizational structures commonly used in nonfiction texts, such as problem and solution, compare and contrast, cause and effect, description, and sequential order.

Welcome back to the FRAME channel for a feature on the modern production process of pencils on a large scale worldwide, including the procurement of graphite as the primary raw material for pencils.

Howcast - Learn how to write a song with this Howcast tutorial from John Popper of Blues Traveler.

Howcast - Learn about the Psalm 23 Bible verse in this Howcast video with Reverend Dr. Timothy Coombs.

Howcast - Learn about bipolar disorder, also known as manic-depressive disorder, from psychiatrist Ankur Saraiya in this Howcast video.

Howcast - Learn all about arc welding machines from sculptor DeWitt Godfrey in this Howcast video.

Howcast - Check out this playthrough for the action RPG "Dead Island" and beat "Way of Salvation" with this online demo.

Howcast - Learn how obesity increases your risk of heart disease from Dr. Dennis Finkielstein in this Howcast video.

Howcast - Learn if people with schizophrenia are more likely to be violent from psychiatrist Jeanie Tse in this Howcast video.

Howcast - Learn about the link between schizophrenia and smoking from psychiatrist Jeanie Tse in this Howcast video.

Howcast - Learn how male infidelity patterns differ from female infidelity patterns from couples counselor Victoria Wilson, Ph.D. in this Howcast video.

Howcast - Several respected journalists started out writing for tabloids, which can be an exciting career in itself.

Howcast - Generating pollution-free electricity, the hydrogen fuel cell is a promising renewable energy technology. Watch it in action with this simple home-science project.

Howcast -Learn how to lose weight on the Perricone Diet from Carolyn Dean, M.D. in this Howcast video.