TED-Ed

Find out why Flannery O’Connor, an American novelist, is known as a master of the grotesque in Southern Gothic literature.

Uploaded 29-01-19

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Flannery O’Connor scribbled tales of outcasts, intruders and misfits staged in the world she knew best: the American South. She was a master of the grotesque, but her work pushed beyond the purely ridiculous and frightening to reveal the variety and nuance of human character. Iseult Gillespie explores how O’Connor’s endlessly surprising fictional worlds continue to draw readers decades later.

Lesson by Iseult Gillespie, directed by Anton Bogaty.

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View full lesson: https://ed.ted.com/lessons/why-should-you-read-flannery-o-connor-iseult-gillespie

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Travel into the digestive system to learn about cholesterol, and find out what the difference is between LDL and HDL cholesterol.

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In 1968, the American Heart Association made an announcement that would influence people’s diets for decades: they recommended that people avoid eating more than three eggs a week. Their reasoning was that the cholesterol packed into egg yolks could increase cardiovascular disease risk. So, what exactly is cholesterol? And is it actually bad for you? Hei Man Chan digs into this complex molecule.

Lesson by Hei Man Chan, directed by Igor Ćorić, Artrake Studio.

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View full lesson: https://ed.ted.com/lessons/what-actually-causes-high-cholesterol-hei-man-chan
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Dig into the Bengali tale of brothers Neelkamal and Lalkamal, two princes seeking to end the reign of demons in their kingdom.

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Achinpur was on the precipice of demonic takeover. A mysterious woman beguiled the king and infiltrated the royal family. But she wasn’t human; under her beautiful façade lurked an insatiable appetite for flesh. One night, the demon queen devoured the king's sons — but the princes managed to evade death. Malay Bera shares the tale of their quest to free the kingdom from the scourge of demons.

Lesson by Malay Bera, directed by Ahmad Thabit, Samaka Studio.

Although this folktale exists in multiple oral variants across the Bengali-speaking world, this video is based on a variant akin to the better-known literary version, "Neelkamal and Lalkamal", from Thakurmar Jhuli (1907), an anthology of Bengali folktales collected by Dakshinaranjan Mitra Majumdar in the early 20th century.

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Animator's website: https://www.samaka.tv
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Ramesh Raskar presents femto-photography, a new type of imaging so fast it visualizes the world one trillion frames per second, so detailed it shows light itself in motion. This technology may someday be used to build cameras that can look "around" corners or see inside the body without X-rays.

Uploaded 21-06-13

Talk by Ramesh Raskar.



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Ada imagines how eradicating invasive species would impact our ecosystems. Who decides which species, and how many are too many?

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This is episode 5 of the animated series, “Ada.” This 5-episode narrative follows the young library assistant Ada as she juggles two worlds: her daily mundane reality and the future she vividly imagines for all humanity. Traveling through her visions of potential futures, Ada grapples with the ethical and social implications of new technologies and how they could shape the world.

Written by Elizabeth Cox, directed by Elizabeth Cox & Kirill Yeretsky.

This video was produced by Should We Studio.
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Dive into the incredible diversity of animal pupils, and how the different shapes indicate the animal’s role in an ecosystem.

Uploaded 13-01-22

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Peering into the eyes of different animals, you’ll see some extraordinarily shaped pupils. House cats, for one, are twilight hunters with vertically elongated pupils. Many grazing animals, like goats, have rectangular pupils. Other animals have crescent- or heart-shaped pupils. So, what’s going on? Why are there so many different pupil shapes? Emma Bryce digs into the science of animal vision.

Lesson by Emma Bryce, directed by Bálint Gelley, CUB Animation Ltd.

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View full lesson: https://ed.ted.com/lessons/why-do-cats-have-vertical-pupils-emma-bryce
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Inspired by cell division, Michael Hansmeyer writes algorithms that design outrageously fascinating shapes and forms with millions of facets. No person could draft them by hand, but they're buildable -- and they could revolutionize the way we think of architectural form.

Uploaded 21-06-13

Talk by Michael Hansmeyer.



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View full lesson: http://ed.ted.com/lessons/how-to-fossilize-yourself-phoebe-a-cohen

Uploaded 06-01-14

You can aspire to great things in life, but how about in death? Could you be one of the world's greatest fossils many years from now? To ensure being found by a future paleontologist, you'll need to die in a highly specific way (think within tree sap or on the bottom of the ocean floor), and nature takes care of the rest. Phoebe A. Cohen details the steps your body must take to find future fame as a fossil.

Lesson by Phoebe A. Cohen, animation by Anton Bogaty.



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Uploaded 07-01-14

View full lesson: http://ed.ted.com/lessons/how-sugar-affects-the-brain-nicole-avena

When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine -- an overload of sugar spikes dopamine levels and leaves you craving more. Nicole Avena explains why sweets and treats should be enjoyed in moderation.

Lesson by Nicole Avena, animation by STK Films.



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View full lesson: http://ed.ted.com/lessons/the-nurdles-quest-for-ocean-domination-kim-preshoff

Uploaded 04-08-14

Nurdles are the tiny, factory-made pellets that form the raw material for every plastic product that we use, from toys to toothbrushes. And while they look pretty harmless on land, they can really wreak havoc on our oceans. Kim Preshoff details the nurdles' quest for ocean domination, shedding light on the particular features that allow these pervasive polluters to persist for entire generations.

Lesson by Kim Preshoff, animation by Reflective Films.



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