The Great Depression was one of the worst economic disasters America has ever experienced. But it’s also a period that produced some of the great innovations in US history.

The official orientation film of Redwood National and State Parks. This short movie is shown in our visitor centers. CREDIT: NPS

Psychologist and bestselling author Daniel Goleman speaks on 'Focus: The Secret to High Performance and Fulfilment '.

See ferrofluid falling on a magnet filmed at 1000fps. How does the science of falling ferrofluid droplets mimic speghettification while falling into a black hole?

A short look into an even shorter story. In just two pages, Chopin takes readers on a journey of grief and how the oppressive forces in society can drive people to the most startling of discoveries. In this video we'll look at how Chopin...

Through animation, I explain various aspects of focal length, from the principle of the subject, to crop factor, and finally the different classifications of lenses.

Do you find it difficult to have a conversation in English? Do you feel that you don’t know what to say? In this lesson, you’ll see some simple, effective tips to help you start, develop and end a conversation in...

Which is better, the book or the movie? From The Golden Compass to The Great Gatsby, from The Hobbit to Harry Potter and The Giver, we find ourselves wondering why adaptations of beloved stories tend not to live up to the source...

Excellent for every American Sign Language (ASL) student as well as teachers, parents and professionals learning ASL to be able to communicate clearly, naturally and start signing with the deaf community and people with hearing loss....

This video explains how to use a confidence interval in research, using examples of statistics gathered from various samples. It breaks down the concept of margin of error and how it relates to the confidence level and interval. The...

Just the Facts: The Emergence of Modern America: The Progressive Era uses fascinating historical footage to explore six decades that shaped modern America. The series examines the Gilded Age in the late 19th century, the Progressive Era...

In this episode of Green Revolution, learn how solar cells capture energy from the sun, and how scientists and engineers are improving this technology so you can use the power of the sun on the go.



Visit the full Green...