Plate Tectonics Explained

Squeaks and Jessi are learning all about the animals that live at the bottom of the world, including penguins - emperor penguins, macaroni penguins, and more! We learn why penguins look like they're all dressed up, and what kind of food...

Almost 50 million years ago, the biggest landslide in Earth's history occurred in Wyoming. An entire mountain slid 45 kilometers at one-third the speed of sound. But how could this happen when the slope was only 2 degrees?

In this episode, Jessi and her friends at The Fort learn about the physics behind all the slippery fun you can have on the ice. <br/>

With levity and profound insight, artist Maira Kalman reflects on life, death, dinner parties, not knowing the right answers, the joys of eating a hot dog from a street vendor and more. This talk, interwoven with her delightful...

This video is about a better way to understand Penrose tilings (the famous tilings invented by Roger Penrose that never repeat themselves but still have some kind of order/pattern).

Everyone knows that 3-, 4- and 5-year-olds ask a lot of questions. But that

unrestrained curiosity can unsettle preschool teachers who feel they
lack
sufficient understanding of science, technology, engineering
and math,...

In this video Paul Andersen describes the relationship between energy and forces. When objects are directly touching electromagnetic forces can result in forces and energy exchange. When objects are not directly touching fields;...

Check out life under a rock to see what you can learn about insects, spiders, and other animals!

The Inventables guys, Zach Kaplan and Keith Schacht, demo some amazing new materials and how we might use them. Look for squishy magnets, odor-detecting ink, "dry" liquid and a very surprising 10-foot pole.

When he was just 14 years old, Malawian inventor William Kamkwamba built his family an electricity-generating windmill from spare parts, working from rough plans he found in a library book.

MIT Media Lab founder Nicholas Negroponte takes you on a journey through the last 30 years of tech. The consummate predictor highlights interfaces and innovations he foresaw in the 1970s and 1980s that were scoffed at then but are...

You and your best friend Bill are the greatest bards in the kingdom— but maybe not the brightest. Your hit song has insulted the king and now you're slated for execution. Luckily, Death is a connoisseur of most excellent music and has...

The founding mother of the blog revolution, Movable Type's Mena Trott, talks about the early days of blogging, when she realized that giving regular people the power to share our lives online is the key to building a friendlier, more...

A silly poem encapsulating the ideas from the video about Euler's formula through graph theory.

Rodney Mullen is the godfather of street skating, and in this exuberant talk he shares his love of the open skateboarding community. He shows how the unique environments skaters play in drive the creation of new tricks -- fostering...

Explore how to use a light microscope with the Amoeba Sisters! Includes microscope parts, how to use, and some helpful tips! Additionally, this video introduces a few types of light microscopes as well as electron microscopes. Expand...

Josh Silver delivers his brilliantly simple solution for correcting vision at the lowest cost possible -- adjustable, liquid-filled lenses. At TEDGlobal 2009, he demos his affordable eyeglasses and reveals his global plan to distribute...

Jessi and Squeaks are revisiting the fun times they had when they learned all about simple machines so they can solve all sorts of problems around the Fort!

Why are most manhole covers round? Sure it makes them easy to roll, and slide into place in any alignment. But there's another, more compelling reason, involving a peculiar geometric property of circles and other shapes. Marc Chamberland...

Hello, world! Welcome to Crash Course Computer Science! So today, we’re going to take a look at computing’s origins, because even though our digital computers are relatively new, the need for computation is not. Since the start of...

The world changes. It really does! But sometimes it changes so slowly that we don't notice it. Other times it changes REALLY FAST!!! In this episode of Crash Course Kids, Sabrina talks about some of the reasons things can change quickly...

They're millions of digits long, and it takes an army of mathematicians and machines to hunt them down -- what's not to love about monster primes? Adam Spencer, comedian and lifelong math geek, shares his passion for these odd numbers,...

A silly poem encapsulating the ideas from the video about Euler's formula through graph theory.