There's a vaccine being developed now that would protect you against every strain of the flu— even ones that don't exist yet. But influenza is constantly mutating, so is a universal vaccine even possible? And how do you design a vaccine...

Hank talks with Owl Research Institute founder Denver Holt. Then Jessi introduces the bird lovers to a pigeon. Warning: watch your ears for wing flapping into the microphone.

Rob Legato creates movie effects so good they (sometimes) trump the real thing. In this warm and funny talk, he shares his vision for enhancing reality on-screen in movies like Apollo 13, Titanic and Hugo.

Using simple, delightful illustrations, designer Stefan Sagmeister shares his latest thinking on happiness -- both the conscious and unconscious kind. His seven rules for life and design happiness can (with some customizations) apply to...

As human beings, we get used to "the way things are" really fast. But for designers, the way things are is an opportunity ... Could things be better? How? In this funny, breezy talk, the man behind the iPod and the Nest thermostat shares...

You use your brain's executive function every day -- it's how you do things like pay attention, plan ahead and control impulses. Can you improve it to change for the better? With highlights from her research on child development,...

Hank takes you through the weird, twisted forests of Russia and Eastern Europe, where trees grow at odd angles. What caused trees to grow into big wooden pretzels? Was it wind? Manipulation by woodworkers? Nazis, maybe? See for yourself...

There are over 13,000 active seismic stations out there, producing far more data than seismologists have time to go through. So, researchers set up a showdown of humans versus machines to sift through all this information and, in the...

Who needs redundancy? Well, everyone, it turns out.

Are you looking closely? Visual educator Amy Herman explains how to use art to enhance your powers of perception and find connections where they may not be apparent. Learn the techniques Herman uses to train Navy SEALs, doctors and crime...

Architecture is more than a clever arrangement of bricks. In this eloquent talk, Michael Murphy shows how he and his team look far beyond the blueprint when they're designing. Considering factors from airflow to light, theirs is a...

Things can go wrong in scientific experiments sometimes, but when it comes to engineering, getting things wrong can be disastrous.

As cinema started to take off, things like "single viewer" devices weren't going to cut it as the medium advanced. In this episode of Crash Course Film History, Craig talks to us about the Lumiere brothers, their invention of the...

You might associate levitation with magic, but science has its own version.

In this video Paul Andersen shows conceptual thinking in a mini-lesson on proportional relationships. TERMS Quantities - the amount (or number) of a thing Proportional relationship - relation of one dataset to another dataset Directly -...

Birds can communicate with each other in lots of ways, but some types of birds can learn human words! But just because they learn human words, does that mean that they can understand them?

All across the world people need to get from one place to another. And sometimes to get to that other place we need bridges. Here are eight bridges that are extraordinary in their own way, from standing the test of time to handling...

You've heard about slow food. Now here's slow ... TV? In this very funny talk, Norwegian television producer Thomas Hellum shares how he and his team began to broadcast long, boring events, often live -- and found a rapt audience. Shows...

From setback and injury to an Olympic gold medal -- see how confidently making decisions led one bobsledder down an unexpected pathway to victory.

Transportation is a big part of our world and engineers play a big role in making it happen. Today we’ll explore how transportation systems are designed and some things transportation engineers have to take into consideration, like...

In this video Paul Andersen will first define momentum as the product of an objects mass and velocity. He will then demonstrate how a net force acting on an object will change the momentum in the direction of the force. Several...

So we've all heard of relativity, right? But... what is relativity? And how does it relate to light? And motion? In this episode of Crash Course Physics, Shini talks to us about perspective, observation, and how relativity is REALLY weird!

Illness is universal -- but access to care is not. Physician Raj Panjabi has a bold vision to bring health care to everyone, everywhere. With the 2017 TED Prize, Panjabi is building the Community Health Academy, a global platform that...

Mr. Andersen explains the concept of momentum. He also shows you how to solve simple momentum problems. He finally shows you how momentum is both conserved and relative.