TED-Ed

Discover what happens in your body when you have a fever and why its role in our immune response remains a mystery to scientists.

Uploaded 12-11-20

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There are many mysteries around fever, but we do know that all mammals, some birds and even a few invertebrate and plant species feel fever’s heat. It has persisted for over 600 million years of evolution. But it has a significant cost: for every degree increase in temperature, there’s a 12.5% increase in energy required. So, why and how does your body produce a fever? Christian Moro investigates.

Lesson by Christian Moro, directed by Artrake Studio.

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View full lesson: https://ed.ted.com/lessons/why-do-you-get-a-fever-when-you-re-sick-christian-moro
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Animator's website: https://www.artrake.com/
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Dig into common mistakes that tree-planting programs make, and explore strategies that can successfully re-green the planet.

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In fighting climate change, few solutions are discussed more than planting lots and lots of trees. It sounds simple enough: trees absorb CO2 from the atmosphere, so planting more should help eliminate greenhouse gasses. The trouble is, tree planting efforts don’t always work as planned. So, when is it bad to plant trees? Carolyn Beans explores strategies to successfully re-green the planet.

Lesson by Carolyn Beans, directed by Ivana Bošnjak, Thomas Johnson Volda.

This video made possible in collaboration with Speed & Scale
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A special thanks to Robert Heilmayr who provided information and insights for the development of this video.

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View full lesson: https://ed.ted.com/lessons/does-planting-trees-actually-fight-climate-change-carolyn-beans
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Animator's website: https://www.instagram.com/ivanavolda/?hl=en
Music: https://www.wonderboyaudio.com/who-we-are
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Uncover the history of the hidden communities that inhabited the Great Dismal Swamp in North America.

Uploaded 12-08-21

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Straddling Virginia and North Carolina is an area that was once described as the “most repulsive of American possessions.” By 1728, it was known as the Great Dismal Swamp. But while many deemed it uninhabitable, recent findings suggest that a hidden society persisted in the Swamp until the mid-1800’s. So, who lived there? And what happened to them? Dan Sayers uncovers a lost civilization.

Lesson by Dan Sayers, directed by Tomás Pichardo-Espaillat.

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Signup to receive the bonus riddle's solution: https://brilliant.org/TedEdWerewolf/

Uploaded 08-11-18

You’re on the trail of a werewolf that’s been terrorizing your town. After months of detective work, you’ve narrowed your suspects to one of five people. You’ve invited them to dinner with a simple plan: to slip a square of a rare antidote into each of their dinners. Unfortunately, you only have one square left. Can you divide it into perfect fifths and cure the werewolf? Dan Finkel shows how.

Lesson by Dan Finkel, directed by Artrake Studio.

Thank you so much to our patrons for your support! Without you this video would not be possible! Ken, James Bruening, Michael Braun-Boghos, Ricardo Diaz, Kack-Kyun Kim, Artem Minyaylov, Danny Romard, Yujing Jiang, Stina Boberg, Anthony Wiggins, Hoai Nam Tran, Joe Sims, David Petrovič, Chris Adriaensen, Lowell Fleming, Sunny Patel, Vijayalakshmi , Uday Kishore, Aidan Forero, Leen Mshasha, Allan Hayes, Vaibhav Mirjolkar, Tony, Michelle, Katie and Josh Pedretti, Erik Biemans, Gaurav Mathur, Hans Peng, Tekin Gültekin, Hector Quintanilla, Penelope Misquitta, Ravi S. Rāmphal, Emma Moyse, Fahad Nasser Chowdhury, Marin Kovachev, Roman Pinchuk, Daniel Huerga, Maria Lerchbaumer, Edgar Campos Barrachina, Dianne Palomar, The Brock, Curtis Light, Ernest Chow, Liana Switzer, Maija Chapman, Pamela Harrison, Mighterbump , Beatriz Inácio, Robert Hargis, Mircea Sîrbu, Irindany Sandoval and William Bravante.



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View full lesson: http://ed.ted.com/lessons/are-we-ready-for-neo-evolution-harvey-fineberg

Medical ethicist Harvey Fineberg shows us three paths forward for the ever-evolving human species: to stop evolving completely, to evolve naturally -- or to control the next steps of human evolution, using genetic modification, to make ourselves smarter, faster, better. Neo-evolution is within our grasp. What will we do with it?

Talk by Harvey Fineberg.

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View full lesson: http://ed.ted.com/lessons/how-farming-planted-seeds-for-the-internet-patricia-russac

What does farming have to do with invention and innovation? Permanent residences, division of labor, central government, and complex technologies--all essential for advancing civilizations--could not have been developed without the move from hunting-gathering to farming. Patricia Russac explores how farming was a major innovation leading to the civilization we know today.

Lesson by Patricia Russac, animation by Enjoyanimation.

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Explore how scientists use environmental DNA (eDNA) in a technique called DNA metabarcoding to find and track species.

Uploaded 24-08-21

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Scientists have been staking out a forest in Montana for an animal that’s notoriously tricky to find. Camera traps haven’t offered definitive evidence, and experts can’t identify its tracks with certainty. But within the past decades, researchers have developed methods that can detect even the most elusive species. So how does it work? Hélène Morlon and Anna Papadopoulou dig into DNA metabarcoding.

Lesson by Hélène Morlon and Anna Papadopoulou, directed by Blok Magnaye.

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Uploaded 10-08-21

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Once every century, the world’s greatest spiders gather to compete in a series of grueling games. The winner will become the next arachnomonarch, able to command all the world’s spiders to their will. That day is today, and for the first time, you’re casting your name into the ring. Can you attain the mantle of spider supremacy? Dan Finkel shows how.

Lesson by Dan Finkel, directed by Igor Ćorić, Artrake Studio.

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View full lesson: http://ed.ted.com/lessons/become-a-slam-poet-in-five-steps-gayle-danley

Uploaded 27-03-13

With enough passion and practice, becoming a slam poet is within your reach. Explore a distant memory on paper, then read it out loud. Edit. Try reading it out loud again, and add your finishing touches. Gayle Danley offers five steps to being a slam poet -- while being downright poetic in the process.

Lesson by Gayle Danley, animation by TED-Ed.



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Is there extraterrestrial life in our solar system? Or are we alone? Take a journey to the ocean worlds on Jupiter and Saturn to investigate the possibility.

Uploaded 20-06-19

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Deep in our solar system, a new era of exploration is unfolding. Beneath the thick ice of Europa; in the vapor plumes on Enceladus; and within the methane lakes of Titan, scientists are hunting for extraterrestrial life. These moons are ‘ocean worlds’— they contain liquid oceans, which can support the formation of life. Does life exist on ocean worlds? Augusto Carballido explores the possibility.

Lesson by Augusto Carballido, directed by Artrake Studio.

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View full lesson: https://ed.ted.com/lessons/there-may-be-extraterrestrial-life-in-our-solar-system-augusto-carballido

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