Meet the "Row-bot," a robot that cleans up pollution and generates the electricity needed to power itself by swallowing dirty water. Roboticist Jonathan Rossiter explains how this special swimming machine, which uses a microbial fuel...

Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and...

Conventional wisdom frames the ideal career path as a linear one -- a ladder to be climbed with a single-minded focus to get to the top. Career development consultants Sarah Ellis and Helen Tupper invite you to replace this outdated...

In which John Green teaches you about the Cold War, which was occasionally hot, but on average, it was just cool. In the sense of its temperature. It was by no means cool, man. After World War II, there were basically two big...

If you lined up all the blood vessels in your body, they'd be 60 thousand miles long. And every day, they carry the equivalent of over two thousand gallons of blood to the body's tissues. What effect does this pressure have on the walls...

Nature reveals itself to us in unique ways, if we stop and look at the world through a window of time, says photographer Stephen Wilkes. Using a special photographic technique that reveals how a scene changes from day to night in a...

We’ve changed - and standardized - the way diseases get named because the old way was often stigmatizing and confusing.

Why do we sleep? Well... that's a tricky question. More easily answered is the question,"How do we sleep?" In this episode of Crash Course Psychology, Hank discusses some of the ways our brain functions when sleeping and how it...

In which John Green teaches you about the Crusades embarked upon by European Christians in the 12th and 13th centuries. Our traditional perception of the Crusades as European Colonization thinly veiled in religion isn't quite right. John...

Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and...

Have you ever wondered how a tiny little seed grows into a plant? Well, there's a special kind of seed, one you've probably eaten before, that's big enough for you to open up and see how it works: a bean!

How do different societies establish a social hierarchy? Today we’re starting our unit on social stratification, starting with four basic principles of a sociological understanding of stratification. We’ll explain open and closed systems...

Jessi and Squeaks want to learn more about the inside of a pumpkin. How? By dissecting it!

Like Beat writers who composed their work by shredding and reassembling scraps of writing, artist Jean-Michel Basquiat used similar techniques to remix his materials. Pulling in splintered anatomy, reimagined historical scenes and...

Daphne Koller is enticing top universities to put their most intriguing courses online for free -- not just as a service, but as a way to research how people learn. With Coursera (cofounded by Andrew Ng), each keystroke, quiz,...

Many animals eat plants, but did you know some plants eat animals? Jessi and Squeaks explore some of their favorite meat eating plants!

Why, why, why does our education system look so similar to the way it did 50 years ago? Millions of students were failing then, as they are now -- and it’s because we’re clinging to a business model that clearly doesn’t work. Education...

Jessi and Squeaks have some cool rocks. What do you think is inside them?

Robots aren’t like humans who can do a lot of different things. They’re designed for very specific tasks like vacuuming our homes, assembling cars in a factory, or exploring the surface of other planets. So even though it may be a while...

New ReviewRyanair passengers who want to check in bags will need to get to the airport earlier from 10 November.Europe’s biggest budget airline says check-in and bag drop services at all its airports will close an hour before the scheduled...

New ReviewChanges in the workplace are more often an opportunity than a threat. But they can be unsettling and challenging nonetheless. So, how can you adapt? Here are my tips.

Hit rewind to revisit three incredible small-space homes packed with lessons in creativity and style! From a 529 sq ft NYC apartment to a 590 sq ft Oakland rental and a 350 sq ft Brooklyn studio, see how these homeowners make every...

Would you know how to stick your head through an index card?

It's mom Kokomo's first baby - Winston - at the San Diego Zoo Safari Park since transferring from the Oklahoma City Zoo on breeding loan.