TED-Ed

Explore the ancient Greek philosophy of cynicism, which calls for the rejection of materialism and conformity in favor of a simple life.

Uploaded 19-12-19

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In the 4th century BCE, a young Diogenes of Sinope was found to be counterfeiting coins. He was stripped of his citizenship, his money, all his possessions and sent into exile. He decided he would live self-sufficiently, close to nature, without materialism, vanity, or conformity and only then could he be truly free. William D. Desmond details how Diogenes gave rise to the philosophy of cynicism.

Lesson by William D. Desmond, directed by Avi Ofer.

Animator's website: https://www.aviofer.com
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View full lesson: https://ed.ted.com/lessons/the-philosophy-of-cynicism-william-d-desmond

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Dig into the myth of Baucis and Philemon, a couple who unknowingly showed the gods hospitality after their neighbors refused.

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It was dark when two mysterious, shrouded figures appeared in a hillside village. The strangers knocked on every door in town, asking for food and shelter. But, again and again, they were turned away. Soon, there was just one door left: that of a small, thatched shack. Would the owners help the visitors — or spurn them? Iseult Gillespie shares the myth of Baucis and Philemon.

Lesson by Iseult Gillespie, directed by Vitalii Nebelskyi, and action creative agency.

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View full lesson: https://ed.ted.com/lessons/the-myth-of-zeus-test-iseult-gillespie
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View full lesson: https://ed.ted.com/lessons/why-it-s-so-hard-to-cure-hiv-aids-janet-iwasa

Uploaded 16-03-15

In 2008, something incredible happened: a man was cured of HIV. In over 70 million HIV cases, this was a first, and, so far, a last, and we don’t yet understand exactly how he was cured. But if we can cure people of various diseases, like malaria and hepatitis C, why can’t we cure HIV? Janet Iwasa examines the specific traits of the HIV virus that make it so difficult to cure.

Lesson by Janet Iwasa, animation by Javier Saldeña.



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Dive into the Japanese folktale of a scholar’s quest to purify his body and mind, and the spiritual secret he discovers along the way.

Uploaded 14-09-20

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In ancient Kyoto, a Shinto scholar found himself distracted from his prayers and sought to perform a purification ritual that would cleanse him. He decided to travel to the revered Hie Shrine; walking the path alone, ignoring any distractions in his quest for balance, and never straying. But setting out for home one day, he hears desperate pleas for help. Iseult Gillespie shares the tale of mercy.

Lesson by Iseult Gillespie, directed by Amir Houshang Moein.

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View full lesson: https://ed.ted.com/lessons/the-japanese-folktale-of-the-selfish-scholar-iseult-gillespie

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Is it possible to lose weight fast— in a healthy way? Dig into how different forms of dieting affect your body.

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In the wealthiest circles of Victorian England, dieters would swallow an unhatched tapeworm and let it grow inside them by consuming undigested meals. And while modern fad diets aren’t usually this extreme, they do promise similar results; specifically, losing weight fast. So, are there any fast diets that do work? And are any of them actually healthy for you? Hei Man Chan investigates.

Lesson by Hei Man Chan, directed by Avi Ofer.

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View full lesson: https://ed.ted.com/lessons/is-it-possible-to-lose-weight-fast-hei-man-chan
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Follow Pheidias, the chief builder for the Parthenon, as he supervises the construction of the new temple and faces charges of embezzlement.

Uploaded 15-09-20

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The year is 432 BCE. As dawn breaks over Athens, Pheidias is already late for work. He is the chief builder for the Parthenon — Athens’ newest and largest temple— and when he arrives onsite, city officials accuse him of embezzling gold from the temple’s sacred central statue. He has until sundown to prove his innocence or face the courts. Mark Robinson outlines a day in the life of a Greek architect.

Lesson by Mark Robinson, directed by Hana Tintor and Laura Martinović.

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

Uploaded 20-07-13

Slam poetry packs an emotional punch by using powerful verbal metaphors; animation can do the same using visual tools. TED-Ed animators show how two separate techniques -- rotoscoping and more traditional hand-drawn animation -- bring to life the multilayered process of becoming a slam poet.

Lesson and animation by TED-Ed.



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Get to know the extraordinary, bald and buck-toothed naked mole rats and how their traits make them suited to survive harsh conditions.

Uploaded 29-05-18

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What mammal has the social life of an insect, the cold-bloodedness of a reptile, and the metabolism of a plant? Bald and buck-toothed, naked mole-rats may not be pretty, but they are extraordinary. Thomas Park explains how mole rats' peculiar traits have evolved over millions of years to make them uniquely suited to survive harsh conditions - especially long periods without oxygen.

Lesson by Thomas Park, animation by Chintis Lundgren.

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View full lesson: https://ed.ted.com/lessons/are-naked-mole-rats-the-strangest-mammals-thomas-park

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Dig into the delicate balancing act of how power grids supply energy to the world and how renewable energy factors into this process.

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In 1967, Homer Loutzenheuser flipped a switch and connected the power grids of the United States, forming one interconnected machine. Today, the US power grid is the world’s largest machine, containing more than 7,300 electricity-generating plants. So how exactly do these power plants work? Henry Richardson digs into the delicate balancing act of how power grids supply us energy.

Lesson by Henry Richardson, directed by Anna Benner.

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View full lesson: https://ed.ted.com/lessons/what-does-the-world-s-largest-machine-do-henry-richardson
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View full lesson: http://ed.ted.com/lessons/population-pyramids-powerful-predictors-of-the-future-kim-preshoff

Uploaded 05-05-14

Population statistics are like crystal balls -- when examined closely, they can help predict a country's future (and give important clues about the past). Kim Preshoff explains how using a visual tool called a population pyramid helps policymakers and social scientists make sense of the statistics, using three different countries' pyramids as examples.

Lesson by Kim Preshoff, animation by TED-Ed.



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