TED-Ed

Traditional lab tests for disease diagnosis can be too expensive and cumbersome for the regions most in need. George Whitesides' ingenious answer is a foolproof tool that can be manufactured at virtually zero cost. (Filmed at TEDxBoston.)

Uploaded 08-08-13

Talk by George Whitesides.



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What could our future look like if we harness our technology to create a sustainable world? Take a look at the possibilities.

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Faced with the realities of current crises, it’s easy to assume our world is headed in a bleak direction. But there’s good reason to be hopeful— with developments in science and technology, a positive future is more viable than ever before. So, what if the future was awesome? Iseult Gillespie explores what three cities could look like in 100 years if we harness the tools we have at our disposal.

Lesson by Iseult Gillespie, directed by Devin Clark, Augenblick Studios.

This video made possible in collaboration with Speed & Scale
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View full lesson: https://ed.ted.com/lessons/what-earth-in-2125-could-look-like-iseult-gillespie
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Dig into how the Sun and Moon are responsible for the tides on Earth, and what this force looks like on other celestial bodies.

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In the 17th century, Isaac Newton offered the first gravitational explanation of tides. As he correctly identified, tides are choreographed by the motions of celestial objects, and Earth’s tides in particular are mostly driven by the Moon. But the precise nature of this relationship is actually quite nuanced. Elise Cutts explains how the Sun and Moon are responsible for the tides.

Lesson by Elise Cutts, directed by Rémi Cans, Atypicalist.

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View full lesson: https://ed.ted.com/lessons/why-are-there-two-tides-a-day-elise-cutts
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Animator's website: https://www.atypicalist.com
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Dig into the challenges of modern pastoralism, a form of agriculture where farmers guide livestock to seasonal grazing areas.

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For millennia, livestock farmers strategically guided animals to seasonal grazing areas. This mobile way of life, known as pastoralism, provided them with wealth, social status, and political independence into the 20th century. But in the last century, political and economic policies have worked against these communities. Take a closer look at the challenges of modern pastoralism.

Directed by Anton Bogaty.

This video made possible in collaboration with Gates Ventures
Learn more about how TED-Ed partnerships work: https://bit.ly/TEDEdPartner

A special thanks to Graham Gerrity, Donald Nkrumah, and Obai Khalifa who provided information and insights for the development of this video.

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Animator's website: https://antonbogaty.com
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An animated interpretation of Robert Frost's poem "The Road Not Taken"

Uploaded 02-02-19

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For an analysis of this poem, watch this video: http://bit.ly/TEDEdFrostAnalysis

This animation is part of our series, "There's a Poem for That," which features animated interpretations of poems both old and new that give language to some of life's biggest feelings. Check out the full series here: http://bit.ly/TEDEdTheresAPoemForThat

Poem by Robert Frost, directed by Ellen Su.

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#poetry



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Join the Celtic druid Camma in her village as she conducts religious rites, serves as a healer, and mediates conflict between tribes.

Uploaded 17-09-19

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As the sun rises in 55 BCE, Camma lays two pigeons on the altar at the center of her village. She wrings the birds’ necks and cuts them open to examine their entrails for divine messages. Camma is a druid. She conducts religious rites, serves as a judge, healer, and scholar, teaches children and mediates conflict between Celtic tribes. Philip Freeman outlines a day in the life of a druid.

Lesson by Philip Freeman, directed by Keegan Thornhill.

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View full lesson: https://ed.ted.com/lessons/a-day-in-the-life-of-an-ancient-celtic-druid-philip-freeman

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In this 360° animation, explore the vibrant world of neon signs and learn the science of what makes them glow.

Uploaded 19-09-19

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When the Hoover Dam was completed, it created a huge source of hydroelectric power and zapped a sleepy desert town to life: Las Vegas, Nevada. With the power supply from the dam, Las Vegas soon exploded with vibrant displays. The source of these dazzling lights was electrified neon gas. In this special 360° animation, explore the colorful world of neon signs as Lippy shares what makes them glow.

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How to view this TED-Ed animated 360° video:

If you have access to a Google Cardboard viewer and a smart phone:

1. Open this video in the YouTube app on your phone.
2. Hit pause on the video.
3. Tap the 3 vertical dots on the top right corner of the view window. This will slide up a sub-menu where you will choose the quality setting of your video stream. Choose "2160s." Note that if you are not streaming over Wifi, YouTube will only allow "720s" quality.
4. Tap on the “Cardboard viewer” icon on the bottom row of the video window (it looks like a mask). This will present the video full screen in prep for the Cardboard viewer.
5. The screen is now divided into 2 halves, separated by a thin white line that runs halfway up the screen. Make sure to rotate your phone so that this thin line is coming from the bottom of the screen. This ensures proper stereoscopic depth.
6. Insert your phone into the Cardboard viewer and press play. The video will begin. Enjoy!

If you do not have access to a Cardboard or smart phone:

1. You can watch on your browser. Use your mouse to drag and explore the space above, below, and behind you. Enjoy!

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Lesson by Lippy, directed by Lippy.

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View full lesson: https://ed.ted.com/lessons/what-makes-neon-signs-glow-a-360-animation-michael-lipman

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View full lesson: http://ed.ted.com/lessons/radioactivity-expect-the-unexpected-steve-weatherall

Neutrons don't change into protons. Except, sometimes, they do. Radioactivity is the process under which the nucleus can change spontaneously from one element to another. Steve Weatherall suggests that we acknowledge both the usefulness and danger inherent in harvesting radioactivity.

Talk by Steve Weatherall, animation by Eugene Uymatiao.

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View full lesson: http://ed.ted.com/lessons/sylvia-earle-s-ted-prize-wish-to-protect-our-oceans

Legendary ocean researcher Sylvia Earle shares astonishing images of the ocean -- and shocking stats about its rapid decline -- as she makes her TED Prize wish: that we will join her in protecting the vital blue heart of the planet. Sylvia Earle has been at the frontier of deep ocean exploration for four decades. She's led more than 50 undersea expeditions, and she's been an equally tireless advocate for our oceans and the creatures who live in them.

Talk by Sylvia Earle.

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Dig into the monetary value of the Sun and how important it is as our energy source as Daedalus contemplates buying it.

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Daedalus hasn’t been the same since losing Icarus. Suddenly, he begins expressing interest in buying the Sun from Helios. Rumors say Daedalus is aspiring to destroy it to avenge Icarus — or channel its immense power towards other imprudent aims. He summons a divine accountant and asks: how much would it cost to buy the Sun? Cella Wright conducts a financial analysis of our star’s worth.

Lesson by Cella Wright, directed by Igor Ćorić, Artrake Studio.

This video made possible in collaboration with Speed & Scale
Learn more about how TED-Ed partnerships work: https://bit.ly/TEDEdPartner

A special thanks to Galen Barbose who provided information and insights for the development of this video.

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View full lesson: https://ed.ted.com/lessons/how-much-would-it-cost-to-buy-the-sun-cella-wright
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Animator's website: https://www.artrake.com
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