TED-Ed

View full lesson: http://ed.ted.com/lessons/how-we-think-complex-cells-evolved-adam-jacobson

Uploaded 17-02-15

Imagine you swallowed a small bird and suddenly gained the ability to fly … or you ate a cobra and were able to spit poisonous venom! Well, throughout the history of life (and specifically during the evolution of complex eukaryotic cells) things like this happened all the time. Adam Jacobson explains endosymbiosis, a type of symbiosis in which one symbiotic organism lives inside another.

Lesson by Adam Jacobson, animation by Camilla Gunborg Pedersen.



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View full lesson: http://ed.ted.com/lessons/the-most-groundbreaking-scientist-you-ve-never-heard-of-addison-anderson

Uploaded 01-10-13

Seventeenth-century Danish geologist Nicolas Steno earned his chops at a young age, studying cadavers and drawing anatomic connections between species. Steno made outsized contributions to the field of geology, influencing Charles Lyell, James Hutton and Charles Darwin. Addison Anderson recounts Steno's little-known legacy and lauds his insistence on empiricism over blind theory.

Lesson by Addison Anderson, animation by Anton Bogaty.



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View full lesson: http://ed.ted.com/lessons/speech-acts-constative-and-performative-colleen-glenney-boggs

Uploaded 03-10-13

When are words just words, and when do words force action? Linguist J.L. Austin divided words into two categories: constatives (words that describe a situation) and performatives (words that incite action). For instance, is a "No running" sign describing your gait, or are you not running because the sign prohibits it? Colleen Glenney Boggs describes how these categorizations give power to words and, ultimately, to your actions.

Lesson by Colleen Glenney Boggs, animation by Lou Webb.



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An animated interpretation of Denice Frohman's poem "Accents"

Uploaded 02-05-19

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Watch an interview with the poet here: https://youtu.be/MbA7hvrDneo

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 Denice Frohman, directed by KAPWA / Robertino Zambrano.

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#poetry



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Master a variety of communication skills with TED’s official public speaking course. This course will teach you how to identify, develop and share your best ideas with the world. This video - the first in the series - is available for free. If you'd like to continue on this learning journey, you can purchase the full 11-lesson course. All proceeds support TED-Ed's nonprofit mission to develop and share free high-quality educational materials with the world.

Lesson 1 Learning Goal:
Identify the qualities of ideas worth spreading.

This lesson is full of foundational knowledge that will help you get the most out of this course. Before you begin the lesson, take a moment to briefly reflect on the questions below. No need to have formal answers, but have an example or two in mind. If you need help, check out the Library for inspiration.

Questions You’ll Answer After the Video:
What's the best example of public speaking you've ever seen? What is your favorite TED talk?
What is it about that memorable talk that has persisted in your mind for days, months or even years?
Can you identify the speaker’s idea?

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Get informed on the science behind post-traumatic stress disorder, PTSD, its symptoms and how the brain reacts to trauma.

Uploaded 25-06-18

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Many of us will experience some kind of trauma during our lifetime. Sometimes, we escape with no long-term effects. But for millions of people, those experiences linger, causing symptoms like flashbacks, nightmares, and negative thoughts that interfere with everyday life. Joelle Rabow Maletis details the science behind post-traumatic stress disorder, or PTSD.

Lesson by Joelle Rabow Maletis, directed by Tomás Pichardo-Espaillat.

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View full lesson: https://ed.ted.com/lessons/the-psychology-of-post-traumatic-stress-disorder-joelle-maletis

Thank you so much to our patrons for your support! Without you this video would not be possible! Jordan Tang, Christopher Jimenez, Juan, Tracey Tobkin, Sid, emily lam, Elliot Poulin, Noel Situ, Oyuntsengel Tseyen-Oidov, Latora Slydell, Sydney Evans, Victor E Karhel, Bernardo Paulo, Eysteinn Guðnason, Andrea Feliz, Natalia Rico, Josh Engel, Bárbara Nazaré, Gustavo Mendoza, Zhexi Shan, Hugo Legorreta, PnDAA , Marcel Trompeter-Petrovic, Sandra Tersluisen, Ellen Spertus, Fabian Amels, Mattia Veltri, Quentin Le Menez, Yuh Saito, Joris Debonnet, Martin Lõhmus, Ded Rabit, Heather Slater, Dr Luca Carpinelli, Janie Jackson, Christophe Dessalles, Arturo De Leon, Eduardo Briceño, Bill Feaver, Ricardo Paredes, Jonathan Reshef, David Douglass, Grant Albert, Paul Coupe, Jen , Megan Whiteleather, Adil Abdulla, Steven LaVoy, Ryohky Araya, vivian james, Tan YH, and Brittiny Elman.



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Puzzle through a classic ethical dilemma and decide: how do we determine the value of a life, whether human or non-human?

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To protect against a possible resurgence of smallpox, the US government is funding research to improve treatments and vaccines. And since it’s unethical to expose people to a highly lethal virus, labs are using monkeys as research subjects. But is it right to harm these animals to protect humanity from a potential threat? Rebecca L. Walker takes a look at this classic ethical dilemma.

Lesson by Rebecca L. Walker, directed by Sharon Colman.

This video was produced in collaboration with the Parr Center for Ethics, housed within the renowned Philosophy Department at the University of North Carolina at Chapel Hill. The Parr Center is committed to integrating abstract work in ethical theory with the informed discussion of practical ethical issues, and prides itself on the development of innovative and inclusive approaches to moral and civic education.

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View full lesson: https://ed.ted.com/lessons/how-do-we-determine-the-value-of-a-life-rebecca-l-walker
Dig deeper with additional resources: https://ed.ted.com/lessons/how-do-we-determine-the-value-of-a-life-rebecca-l-walker#digdeeper

Animator's website: https://www.sharoncolman.com
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Thank you so much to our patrons for your support! Without you this video would not be possible! Francisco Amaya, Daisuke Goto, Matt Switzler, Peng, Tzu-Hsiang, Bethany Connor, Jeremy Shimanek, Mark Byers, Avinash Amarnath, Xuebicoco, Rayo, Po Foon Kwong, Boffin, Jesse Jurman, Scott Markley, Elija Peterson, Ovidiu Mrd, paul g mohney, Steven Razey, Nathan Giusti, Helen Lee, Anthony Benedict, Karthik Balsubramanian, Annastasshia Ames, Amy Lopez, Vinh-Thuy Nguyen, Liz Candee, Ugur Doga Sezgin, Karmi Nguyen, John C. Vesey, Yelena Baykova, Nick Johnson, Carlos H. Costa, Jennifer Kurkoski, Ryan B Harvey, Akinola Emmanuel, Jose Arcadio Valdes Franco, Sebastiaan Vleugels, Karl Laius, JY Kang, Abhishek Goel, Heidi Stolt, Nicole Sund, Karlee Finch, Mario Mejia, Denise A Pitts, Doug Henry, Keven Webb, Mihai Sandu, Deepak Iyer and Javid Gozalov.

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When Colin Stokes' 3-year-old son caught a glimpse of Star Wars, he was instantly obsessed. But what messages did he absorb from the sci-fi classic? Stokes asks for more movies that send positive messages to boys: that cooperation is heroic, and respecting women is as manly as defeating the villain. (Filmed at TEDxBeaconStreet.)

Talk by Colin Stokes.

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James Glattfelder studies complexity: how an interconnected system -- say, a swarm of birds -- is more than the sum of its parts. And complexity theory, it turns out, can reveal a lot about how the economy works. Glattfelder shares a groundbreaking study of how control flows through the global economy, and how concentration of power in the hands of a shockingly small number leaves us all vulnerable. (Filmed at TEDxZurich.)

Talk by James B. Glattfelder.

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Filmed at TED 2012.

View on TED-Ed blog: http://blog.ed.ted.com/2013/05/16/ladies-and-gentlemen-the-hobart-shakespereans/

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