Let's talk about some of the awesome stuff that happened in 2015! Caitlin Hofmeister tells us all about some pretty nifty black holes and the biggest rocket created by NASA.

A hostile artificial intelligence called NIM has taken over the world's computers. You're the only person skilled enough to shut it down, and you'll only have one chance. Can you survive and shut off the artificial intelligence? Dan...

Scientists have learned more about the UK and South American variant of the COVID-19 virus, and how they might be affected by vaccines. The news isn't good, but behind the scary headlines is important research that can help us be better...

Nature photographer Frans Lanting uses vibrant images to take us deep into the animal world. In this short, visual talk he calls for us to reconnect with other earthly creatures, and to shed the metaphorical skins that separate us from...

In this funny and blunt talk, Larry Smith pulls no punches when he calls out the absurd excuses people invent when they fail to pursue their passions.

We have all changed someone's life -- usually without even realizing it. In this funny talk, Drew Dudley calls on all of us to celebrate leadership as the everyday act of improving each other's lives.

For musician Teitur, singing is about giving away a piece of yourself to others. "If your intentions are to impress people or to get the big applause at the end," he says, "then you are taking, not giving." Listen as he plays on stage at...

The modern hard drive is an object that can likely hold more information than your local library. But how does it store so much information in such a small space? Kanawat Senanan details the generations of engineers, material scientists,...

If you can't afford an attorney, one will be appointed for you, right? Not in US civil court. From high legal fees to confusing paperwork and expensive lawyers, it can be difficult to settle civil matters. Entrepreneur and TED Fellow...

No matter how much kale or spinach you eat, the bioavailability of non-heme iron doesn't increase, but the vitamin C in orange juice can actually help your body absorb more of it.

Build your own cloud chamber particle detector and test relativity at home!

You may have satisfied your inner five-year-old by learning why the sky is blue, but where does the ocean's color come from?

No business, no matter how innovative and amazing it is, will survive if people haven’t heard of it. If people don’t know something exists, they’ll never be able to purchase it. It’s time to work on our communication skills.

In ancient Rome, Vestal Virgins were tasked with keeping vigil over the flame of Vesta, the virgin goddess of the hearth. The flame represented two things: the continuation of Rome as a power in the world and the continuing virginity of...

Nature photographer Frans Lanting uses vibrant images to take us deep into the animal world. In this short, visual talk he calls for us to reconnect with other earthly creatures, and to shed the metaphorical skins that separate us from...

We’ll each have at least $100,000 more in our piggy banks, on average, if we stop climate change than if we don’t.

The sun is beginning a new weather cycle, causing debate among scientists about how intense things are going to get, and elsewhere, scientists are looking into just how fluid our early universe was.

Mosquitos have been dangerous for, well... forever. So what's new about Zika?

When it comes to dangerous asteroids striking Earth, it's not a matter of if, it's a matter of when. We have begun to track projectiles large enough to destroy our planet, and we are in the clear for the foreseeable future. However,...

Today, cosmic rays are used to understand things like supernovas, but in the early 1900s, they helped us discover brand-new subatomic particles long before the first accelerators.

Thanks to NASA's James Webb Space Telescope (JWST) project and the Space Telescope Science Institute for supporting this video.



This video is about the line between Brown dwarfs and gas giant planets (aka...

Ric Elias had a front-row seat on Flight 1549, the plane that crash-landed in the Hudson River in New York in January 2009. What went through his mind as the doomed plane went down? At TED, he tells his story publicly for the first time.

We've broken down our preconceived notions about mass and time, now let's redefine what they really are. Since we know that time is not a universal constant, what is? Matt defines causal order and explains how even though time may look...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on energy and energy transfer.


TERMS
Energy - the ability to ca
use change
Object - a material thing that can be s
een and touched
Transfer -...