TED-Ed: Lessons Worth Sharing

By TED

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Reviews: 1

Davidson
 Sep 20, 2019
I find this podcast to be very educative and creative. Kudos to the team.

Description

TED-Ed's commitment to creating lessons worth sharing is an extension of TED's mission of spreading great ideas. Within TED-Ed's growing library of TED-Ed animations, you will find carefully curated educational videos, many of which represent collaborations between talented educators and animators nominated through the TED-Ed website (ed.ted.com).

Episode Date
Can you solve the honeybee riddle? | Dan Finkel
00:04:58
You're a biologist on a mission to keep the rare honeybee Apis Trifecta from going extinct. The last 60 bees of the species are in your terrarium. You've already constructed wire frames of the appropriate size and shape. Now you need to turn them into working beehives by filling every hex with wax. Can you help the bees create producing hives? Dan Finkel shows how. [Directed by Charlotte Arene, narrated by Addison Anderson, music by Stephen LaRosa].
Aug 09, 2020
Ethical dilemma: The burger murders | George Siedel and Christine Ladwig
00:05:25
You founded a company that manufactures meatless burgers that are sold in stores worldwide. But you've recently received awful news: three people in one city died after eating your burgers. A criminal has injected poison into your product! The deaths are headline news and sales have plummeted. How do you deal with the crisis? George Siedel and Christine Ladwig explore the different strategies of this ethical dilemma. [Directed by Patrick Smith, narrated by Addison Anderson, music by Cem Misirlioglu / WORKPLAYWORK].
Aug 09, 2020
No one can figure out how eels have sex | Lucy Cooke
00:05:42
From Ancient Greece to the 20th century, Aristotle, Freud, and numerous other scholars were all looking for the same thing: eel testicles. Freshwater eels could be found in rivers across Europe, but no one had ever seen them mate and no researcher could find eel eggs or identify their reproductive organs. So how do eels reproduce, and where do they do it? Lucy Cooke digs into the ancient mystery. [Directed by Anton Bogaty, narrated by Adrian Dannatt, music by Jarrett Farkas].
Aug 09, 2020
How do our brains process speech? | Gareth Gaskell
00:04:21
The average 20-year-old knows between 27,000 and 52,000 different words. Spoken out loud, most of these words last less than a second. With every word, the brain has a quick decision to make: which of those thousands of options matches the signal? And about 98% of the time, the brain chooses the correct word. How is this possible? Gareth Gaskell digs into the complexities of speech comprehension. [Directed by Art Shot, narrated by Addison Anderson, music by Stephen LaRosa].
Jul 23, 2020
The myth of Jason, Medea, and the Golden Fleece | Iseult Gillespie
00:04:29
In Colchis, the hide of a mystical flying ram hangs from the tallest oak, guarded by a dragon who never sleeps. The only way Jason can pry it from King Aeetes' clutches and win back his promised throne is by facing three perilous tasks— without the help of the Argonauts. Unbeknownst to the king, his daughter Medea was plotting something. Iseult Gillespie shares the myth of the Golden Fleece. [Directed by Jordan Bruner, narrated by Addison Anderson, music by Stephen LaRosa].
Jul 21, 2020
The rise and fall of the Celtic warriors | Philip Freeman
00:04:51
One summer evening in 335 BCE, Alexander the Great was resting by the Danube River when a band of strangers approached his camp. Alexander had never seen anything like these tall, fierce-looking warriors with huge golden neck rings and colorful cloaks. They were Keltoi or Celts— a collection of independent tribes spread across Europe. Philip Freeman details the rise and fall of the ancient Celts. [Directed by Paper Panther, narrated by Addison Anderson, music by Stephen LaRosa].
Jul 21, 2020
The Egyptian myth of the death of Osiris | Alex Gendler
00:03:56
Long jealous of his older brother Osiris, the god who ruled all of Egypt, the warrior god Set plotted to overthrow him. Hosting an extravagant party as a ruse, Set announced a game— whoever could fit perfectly in a wooden chest could have it as a gift. But the chest was a coffin, trapping Osiris inside. Will his sisters be able to find and free him? Alex Gendler details the myth of Osiris. [Directed by Keegan Thornhill, narrated by Addison Anderson, music by Jarrett Farkas].
Jul 16, 2020
The race to decode a mysterious language | Susan Lupack
00:04:24
In the early 1900s, archaeologist Sir Arthur Evans uncovered nearly 3,000 tablets inscribed with strange symbols. He thought the script, dubbed Linear B, represented the Minoan language, while others came up with their own theories. Was it the lost language of the Etruscans? Or an early form of Basque? Its meaning would elude scholars for 50 years. Susan Lupack explores the mysterious inscriptions. [Directed by Movult, narrated by Bethany Cutmore-Scott, music by Stephen LaRosa].
Jul 14, 2020
What makes volcanoes erupt? | Steven Anderson
00:05:10
In February of 1942, Mexican farmer Dionisio Pulido thought he heard thunder coming from his cornfield. However, the sound wasn't coming from the sky. The source was a large, smoking crack emitting gas and ejecting rocks, and would come to be known as the volcano Paricutin. Where do new volcanoes like this come from, and what triggers their unpredictable eruption? Steven Anderson investigates. [Directed by Cabong Studios, narrated by Addison Anderson, music by Astrolábio Studio / Julio Muzzi].
Jul 13, 2020
What happened when the United States tried to ban alcohol | Rod Phillips
00:04:54
On January 17, 1920, less than one hour after spirits had become illegal throughout the United States, armed men robbed a Chicago freight train and made off with thousands of dollars worth of whiskey. It was a first taste of the unintended consequences of Prohibition. So what exactly was Prohibition, and why did it happen? Rod Phillips investigates this chapter of American history. [Directed by Gibbons Studio, narrated by Addison Anderson, music by Fred Roux].
Jul 09, 2020
The tale of the boy who tricked the Devil | Iseult Gillespie
00:05:02
In a small town, a proud mother showed off her newborn son. Upon noticing his lucky birthmark, townsfolk predicted he would marry a princess. But soon, these rumors reached the wicked king. Enraged, the king stole the child away, and sent him hurtling down the river. But the infant's luck proved greater than the king's plan. Iseult Gillespie tells the tale of the boy's journey to meet the Devil. [Directed by Lucija Bužančić, narrated by Adrian Dannatt, music by Bamm Bamm Wolfgang].
Jul 07, 2020
The greatest mathematician that never lived | Pratik Aghor
00:04:50
When Nicolas Bourbaki applied to the American Mathematical Society in the 1950s, he was already one of the most influential mathematicians of his time. He'd published articles in international journals and his textbooks were required reading. Yet his application was firmly rejected for one simple reason: Nicolas Bourbaki did not exist. How is that possible? Pratik Aghor digs into the mystery. [Directed by Província Studio, narrated by Addison Anderson, music by Cem Misirlioglu / WORKPLAYWORK].
Jul 06, 2020
What is phantom traffic and why is it ruining your life? | Benjamin Seibold
00:04:31
You're cruising down the highway when all of a sudden endless rows of brake lights appear ahead. There's no accident, no stoplight, no change in speed limit, or narrowing of the road. So why is there so much traffic? It's due to a phenomenon called a phantom traffic jam. Benjamin Seibold explains why it happens and how we might prevent it in the future. [Directed by Cris Wiegandt, narrated by Addison Anderson, music by André Aires, AIM Creative Studios].
May 28, 2020
Why should you read "Moby Dick"? | Sascha Morrell
00:05:36
A mountain separating two lakes. A room papered floor to ceiling with bridal satins. The lid of an immense snuffbox. These seemingly unrelated images take us on a tour of a sperm whale's head in Herman Melville's "Moby Dick." Though the book features pirates, typhoons, high-speed chases, and giant squid, it's anything but a conventional seafaring adventure. Sascha Morrell digs into the classic novel. [Directed by Martina Meštrović, narrated by Adrian Dannatt, music by Stephen LaRosa].
May 26, 2020
How do ventilators work? | Alex Gendler
00:05:21
In the 16th century, physician Andreas Vesalius described how a suffocating animal could be kept alive by inserting a tube into its trachea and blowing air to inflate its lungs. Today, Vesalius's treatise is recognized as the first description of mechanical ventilation— a crucial practice in modern medicine. So how do our modern ventilators work? Alex Gendler explains the life-saving technology. [Directed by Artrake Studio, narrated by Addison Anderson].
May 21, 2020
Can you solve the world's most evil wizard riddle? | Dan Finkel
00:04:29
The evil wizard MoldeVort has been trying to kill you for years, and today it looks like he's going to succeed. But your friends are on their way, and if you can survive until they arrive, they should be able to help stop him. Can you keep MoldeVort trapped long enough for help to arrive? Dan Finkel shows how. [Directed by Artrake Studio, narrated by Addison Anderson].
May 19, 2020
How do you know if you have a virus? | Cella Wright
00:04:44
A new virus emerges and spreads like wildfire. In order to contain it, researchers must first collect data about who's been infected. Two main viral testing techniques are critical: one tells you if you have the virus and the other shows if you've already had it. So, how exactly do these tests work? Cella Wright explores the science of PCR tests and immunoassays. [Directed by Hype CG, narrated by Bethany Cutmore-Scott, music by Gabriel Maia].
May 18, 2020
What is a coronavirus? | Elizabeth Cox
00:04:55
For almost a decade, scientists chased the source of a deadly new virus through China's tallest mountains and most isolated caverns. They finally found it in the bats of Shitou Cave. The virus in question was a coronavirus that caused an epidemic of severe acute respiratory syndrome, or SARS, in 2003. So what exactly is a coronavirus, and how does it spread? Elizabeth Cox explains. [Directed by Anton Bogaty, narrated by Bethany Cutmore-Scott, music by Jarrett Farkas].
May 14, 2020
A day in the life of an Aztec midwife | Kay Read
00:04:13
The midwife Xoquauhtli has a difficult choice to make. She owes a debt to her patron Teteoinnan, the female warrior goddess at the center of the Aztec seasonal festival, who must be kept happy or she will bring bad luck. Xoquauhtli should participate in the festival today, but one of her patients could go into labor any minute. Kay Read outlines a day in the life of an Aztec midwife. [Directed by AIM Creative Studios, narrated by Bethany Cutmore-Scott, music by André Aires].
May 12, 2020
What causes opioid addiction, and why is it so tough to combat? | Mike Davis
00:08:19
In the 1980s and 90s, pharmaceutical companies began to market opioid painkillers aggressively, while actively downplaying their addictive potential. The number of prescriptions skyrocketed, and so did cases of addiction, beginning a crisis that continues today. What makes opioids so addictive? Mike Davis explains what we can do to reverse the skyrocketing rates of addiction and overdose. [Directed by Good Bad Habits, narrated by Addison Anderson, music by Landon Trimble/ Playdate].
May 08, 2020
Which is better: Soap or hand sanitizer? | Alex Rosenthal and Pall Thordarson
00:05:36
Your hands, up close, are anything but smooth. With peaks and valleys, folds and rifts, there are plenty of hiding places for a virus to stick. If you then touch your face, the virus can infect you. But there are two extraordinarily simple ways you can keep that from happening: soap and water, and hand sanitizer. So which is better? Alex Rosenthal and Pall Thordarson investigate. [Directed by Artrake Studio, narrated by Addison Anderson].
May 05, 2020
What really happened during the Salem Witch Trials | Brian A. Pavlac
00:05:10
You've been accused of a crime you did not commit. It's impossible to prove your innocence. If you insist that you're innocent anyway, you'll likely be found guilty and executed. But if you confess, apologize, and implicate others, you'll go free. This was the choice facing those accused of witchcraft in Salem, Massachusetts in the 17th century. How did this happen? Brian A. Pavlac investigates. [Directed by Lucy Animation Studio, narrated by Susan Zimmerman, music by Stephen LaRosa].
May 04, 2020
What happens if you cut down all of a city's trees? | Stefan Al
00:05:05
By 2050, it's estimated that over 65% of the world will be living in cities. We may think of nature as being unconnected to our urban spaces, but trees have always been an essential part of successful cities. Humanity has been uncovering these arboreal benefits since the creation of our first cities thousands of years ago. So what makes trees so important to a city's survival? Stefan Al explains. [Directed by Mette Ilene Holmriis, narrated by Addison Anderson, music by Bamm Bamm Wolfgang].
Apr 24, 2020
The wildly complex anatomy of a sneaker | Angel Chang
00:05:03
Australians call them "runners." The British know them as "trainers." Americans refer to them as "sneakers." Whatever you call them, these casual shoes are worn by billions of people around the world. Today, roughly 23 billion shoes are produced each year. So, how can we balance our love of sneakers with the need for sustainability? Angel Chang explores how shoe manufacturing impacts our planet. [Directed and animated by Ella Dobson, narrated by Addison Anderson, music by Stephen LaRosa].
Apr 23, 2020
What's the point(e) of ballet? | Ming Luke
00:04:39
A baby cursed at birth. A fierce battle of good and evil. A true love awoken with a kiss. Since premiering in 1890, "The Sleeping Beauty" has become one of the most frequently staged ballets in history. So what makes this piece so beloved? And what exactly does ballet bring to this— or any other— story? Ming Luke shares what makes ballet the perfect medium for stories old and new. [Directed by Visorama, narrated by Addison Anderson, music by Jarrett Farkas].
Apr 20, 2020
The Gauntlet | Think Like A Coder, Ep 8 | Alex Rosenthal
00:08:01
This is episode 8 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and must solve their way through a series of programming puzzles. [Directed by Kozmonot Animation Studio, narrated by Addison Anderson].
Apr 16, 2020
The bug that poops candy | George Zaidan
00:04:23
Aphids can reproduce incredibly fast: they can make 20 new generations within a single season. And that means lots of poop. Some aphid populations can produce hundreds of kilograms of poop per acre— making them some of the most prolific poopers on the planet. We know this poop as the sweet, syrupy liquid called honeydew. George Zaidan explores the wonderfully weird life of an aphid. [Directed by Hype CG, narrated by George Zaidan, music by Gabriel Maia].
Apr 14, 2020
The hidden life of Rosa Parks | Riché D. Richardson
00:04:39
Throughout her life, Rosa Parks repeatedly challenged racial violence and the prejudiced systems protecting its perpetrators. Her refusal to move to the back of a segregated bus ignited a boycott that lasted 381 days and helped transform civil rights activism into a national movement. But this work came at an enormous risk— and a personal price. Riché D. Richardson details the life of Rosa Parks. [Directed by Eido, narrated by Christina Greer, music by John Poon].
Apr 13, 2020
How does alcohol make you drunk? | Judy Grisel
00:05:04
Ethanol: this molecule, made of little more than a few carbon atoms, is responsible for drunkenness. Often simply referred to as alcohol, ethanol is the active ingredient in alcoholic beverages. So how exactly does it cause drunkenness, and why does it have dramatically different effects on different people? Judy Grisel explores alcohol's journey through the body. [Directed by Anton Bogaty, narrated by Bethany Cutmore-Scott].
Apr 09, 2020
How the Monkey King escaped the underworld | Shunan Teng
00:04:43
The Monkey King, a legendary troublemaker hatched from stone and schooled in divine magic, had stolen the Dragon Lord's most treasured weapon: a magical staff. Returning to his kingdom to show off his treasure to his tribe of warrior monkeys, he finds himself caught in the clutches of two soul collectors, dragging him to his death. Shunan Teng details the Monkey King's journey to the underworld. [Directed by Yijia Cao & Mohammad Babakoohi, narrated by Bethany Cutmore-Scott, music by Epidemic Sound].
Apr 07, 2020
The art forger who tricked the Nazis | Noah Charney
00:04:52
It was one of the strangest trials in Dutch history. The defendant in a 1947 case was an art forger who had counterfeited millions of dollars worth of paintings. But he wasn't arguing his innocence— in fact, his life depended on proving that he had committed fraud. Who was this artist, and why was he on trial for his life? Noah Charney investigates the notorious Han van Meegeren. [Directed by Hype CG, narrated by Addison Anderson, music by Gabriel Maia].
Apr 06, 2020
Can you solve the sea monster riddle? | Daniel Finkel
00:04:55
According to legend, once every thousand years a host of sea monsters emerges from the depths to demand tribute from the floating city of Atlantartica. As the ruler of the city, you'd always dismissed the stories... until today, when they rose out of the roiling waters, surrounded your city and demanded a ransom of pearls. Can you figure out which chest of pearls is the ransom? Dan Finkel shows how. [Directed by Artrake Studio, narrated by Addison Anderson].
Apr 02, 2020
History vs. Sigmund Freud | Todd Dufresne
00:05:15
Working in Vienna at the turn of the 20th century, he began his career as a neurologist before pioneering the discipline of psychoanalysis, and his influence towers above that of all other psychologists in the public eye. But was Sigmund Freud right about human nature? And were his methods scientific? Todd Dufresne puts this controversial figure on trial in History vs. Sigmund Freud. [Directed by Brett Underhill, narrated by Addison Anderson].
Mar 31, 2020
How the world's longest underwater tunnel was built | Alex Gendler
00:05:08
Flanked by two powerful nations, the English Channel has long been one of the world's most important maritime passages. Yet for most of its history, crossing was a dangerous prospect. Engineers proposed numerous plans for spanning the gap, including a design for an underwater passage more than twice the length of any existing tunnel. Alex Gendler details the creation of the Channel Tunnel. [Directed by Studio Kimchi, narrated by Addison Anderson, music by Aurélien Vieira Lino].
Mar 30, 2020
What is schizophrenia? | Anees Bahji
00:05:16
Schizophrenia was first identified more than a century ago, but we still don't know its exact causes. It remains one of the most misunderstood and stigmatized illnesses today. So what do we actually know about its symptoms, causes, and treatments? Anees Bahji investigates. [Directed by Artrake Studio, narrated by Susan Zimmerman, music by Stephen LaRosa].
Mar 26, 2020
Why isn't the Netherlands underwater? | Stefan Al
00:04:56
In January 1953, a tidal surge shook the North Sea. The titanic waves flooded the Dutch coastline, killing almost 2,000 people. 54 years later, a similar storm threatened the region. But this time, they were ready. This was thanks to a massive, interlocking system known as the Delta Works— the most sophisticated flood prevention project in the world. Stefan Al dives into this marvel of engineering. [Directed by JodyPrody, narrated by Addison Anderson, music by André Aires / AIM Creative Studios].
Mar 24, 2020
Who was the world's first author? | Soraya Field Fiorio
00:04:34
4,300 years ago in ancient Sumer, the most powerful person in the city of Ur was banished to wander the vast desert. Her name was Enheduanna, and by the time of her exile, she had written forty-two hymns and three epic poems— and Sumer hadn't heard the last of her. Who was this woman, and why was she exiled? Soraya Field Fiorio details the life of history's first author. [Directed by Laura White, narrated by Christina Greer, music by Phil Brookes].
Mar 23, 2020
The imaginary king who changed the real world | Matteo Salvadore
00:05:13
In 1165, copies of a strange letter began to circulate throughout Europe. It spoke of a fantastical realm, containing the Tower of Babel and the Fountain of Youth— all ruled over by the letter's mysterious author: Prester John. Who was this powerful ruler, and was he even real? Matteo Salvadore shares the legend of a mythical king who impacted the decisions of European leaders for 400 years. [Directed by Anna Nowakowska, narrated by Addison Anderson, music by Cam Misirlioglu / WORKPLAYWORK].
Mar 19, 2020
How one scientist took on the chemical industry | Mark Lytle
00:05:03
In 1958, after receiving a letter describing the deaths of songbirds due to the pesticide known as DDT, Rachel Carson began an investigation into the misuse of chemicals and their toll on nature. In 1962, she published her findings in "Silent Spring," which immediately drew both applause and impassioned dissent. How did this biologist and writer ignite such controversy? Mark Lytle investigates. [Directed by Héloïse Dorsan Rachet, narrated by Susan Zimmerman, music by Luke O'Malley].
Mar 17, 2020
How can we solve the antibiotic resistance crisis? | Gerry Wright
00:05:59
Antibiotics: behind the scenes, they enable much of modern medicine. We use them to cure infectious diseases, and to safely facilitate everything from surgery to chemotherapy to organ transplants. But we've stopped discovering new ones and we're at risk of losing them forever. How did we get into this situation? Gerry Wright shares what we can do about antibiotic resistance. [Directed by Artrake Studio, narrated by Addison Anderson, music by Stephen LaRosa].
Mar 16, 2020
The tale of the doctor who defied Death | Iseult Gillespie
00:05:02
A husband and wife were in despair. The woman had just given birth to their 13th child, and the growing family was quickly running out of food and money. Wandering into the woods, the father encountered a skeletal figure with sunken eyes and a gaunt face: this was Death himself, come to offer his services as Godfather. Iseult Gillespie tells the tale of Death and the doctor. [Directed by Yael Reisfeld, narrated by Jack Cutmore-Scott, music by Jarrett Farkas].
Mar 12, 2020
The meaning of life according to Simone de Beauvoir | Iseult Gillespie
00:04:50
At the age of 21, Simone de Beauvoir became the youngest person to take the philosophy exams at France's most esteemed university. But as soon as she mastered the rules of philosophy, she wanted to break them. Her desire to explore the physical world to its fullest would shape her life, and eventually, inspire radical new philosophies. Iseult Gillespie explores the life of the revolutionary thinker. [Directed by Sarah Saidan, narrated by Bethany Cutmore-Scott, music by Stephen LaRosa].
Mar 10, 2020
What's a squillo, and why do opera singers need it? | Ming Luke
00:04:52
An orchestra fills an opera house with music, but a singer's voice soars above the instruments. Its melody rings out across thousands of patrons— all without any assistance from a microphone. How is it possible that a single voice can be heard so clearly? The answer lies in the physics of the human voice. Ming Luke explains the carefully honed technique of an expert opera singer. [Directed by Franz Palomares, narrated by Addison Anderson].
Mar 09, 2020
The Tower of Epiphany | Think Like A Coder, Ep 7 | Alex Rosenthal
00:07:58
This is episode 7 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and must solve their way through a series of programming puzzles. [Directed by Kozmonot Animation Studio, narrated by Addison Anderson].
Feb 27, 2020
Why do people fear the wrong things? | Gerd Gigerenzer
00:04:21
A new drug reduces the risk of heart attacks by 40%. Shark attacks are up by a factor of two. Drinking a liter of soda per day doubles your chance of developing cancer. These are all examples of a common way risk is presented in news articles, and can often be misleading. So how can we better evaluate risk? Gerd Gigerenzer explores the difference between relative and absolute risk. [Directed by Visorama, narrated by Addison Anderson].
Feb 25, 2020
Vultures: The acid-puking, plague-busting heroes of the ecosystem | Kenny Coogan
00:04:45
In the African grasslands, a gazelle suffering from tuberculosis takes its last breath. The animal's corpse threatens to infect the water, but for the vulture, this isn't a problem: it's a feast. With a stomach of steel that can digest diseased meat and waste, vultures are essential to removing dangerous pathogens from ecosystems. Kenny Coogan explores the importance of the desert's cleanup crew. [Directed by Katarina Jukić, narrated by Addison Anderson].
Feb 24, 2020
The secret messages of Viking runestones | Jesse Byock
00:04:15
With their navigational skills and advanced longships, the Vikings sustained their seafaring for over 300 years. But for all their might, they left few monuments. Instead, fragments of stone, bark and bone found in the sites of ancient settlements provide the keys to their culture. Many of these objects are inscribed with Old Norse written in runic letters. Jesse Byock explores the ancient language. [Directed by Lisa LaBracio, narrated by Bethany Cutmore-Scott].
Feb 20, 2020
How do blood transfusions work? | Bill Schutt
00:04:28
In 1881, doctor William Halsted rushed to help his sister Minnie, who was hemorrhaging after childbirth. He quickly inserted a needle into his arm, withdrew his own blood, and transferred it to her. After a few uncertain minutes, she began to recover. What made this blood transfusion successful? Bill Schutt explains the history of the life-saving procedure. [Directed by Hype CG, narrated by Addison Anderson, music by Gabriel Maia].
Feb 20, 2020
The legend of Annapurna, Hindu goddess of nourishment | Antara Raychaudhuri and Iseult Gillespie
00:04:40
Historically, the union between Shiva and Parvati was a glorious one: a sacred combination which brought fertility and connection to all living things. Yet a rift had grown between these two forces. Setting out to prove the importance of her work, Parvati withdrew from the world and sent the Earth into darkness. Antara Raychaudhuri and Iseult Gillespie tell the story of the goddess Annapurna. [Directed by Roxane Campoy, narrated by Susan Zimmerman, music by Stéphane Gassot].
Feb 13, 2020
Epic Engineering: Building the Brooklyn Bridge | Alex Gendler
00:04:52
In the mid-19th century, suspension bridges were collapsing all across Europe. Their industrial cables frayed and snapped under the weight of their decks. So when German American engineer John Roebling proposed building the largest and most expensive suspension bridge ever conceived, New York City officials were understandably skeptical. Alex Gendler details the building of the iconic Brooklyn Bridge. [Directed by Jeremiah Dickey, narrated by Addison Anderson].
Feb 11, 2020
The accident that changed the world | Allison Ramsey and Mary Staicu
00:04:36
In 1928, scientist Alexander Fleming returned to his lab and found something unexpected: a colony of mold growing on a Petri dish he'd forgotten to place in his incubator. And around this colony of mold was a zone completely and surprisingly clear of bacteria. What was this mysterious phenomenon? Allison Ramsey and Mary Staicu detail the discovery of penicillin and how it transformed medicine. [Directed by WOW-HOW Studio, narrated by Susan Zimmerman].
Feb 10, 2020
Everything changed when the fire crystal got stolen | Alex Gendler
00:03:46
Someone has tripped the magical alarms in the Element Temple. When you and the other monks arrive on the scene, you know you have a disaster on your hands. Four young apprentices broke into the temple's inner chamber to steal the sacred element crystals. But when the alarm went off they panicked, and each of them swallowed a crystal. Can you determine who ate which crystal? Alex Gendler shows how. [Directed by Artrake Studio, narrated by Addison Anderson].
Feb 07, 2020
Do politics make us irrational? | Jay Van Bavel
00:05:14
Can someone's political identity actually affect their ability to process information? The answer lies in a cognitive phenomenon known as partisanship. While identifying with social groups is an essential and healthy part of life, it can become a problem when the group's beliefs are at odds with reality. So how can we recognize and combat partisanship? Jay Van Bavel shares helpful strategies. [Directed by Patrick Smith, narrated by Addison Anderson].
Feb 04, 2020
The life, legacy & assassination of an African revolutionary | Lisa Janae Bacon
00:05:07
In 1972, Thomas Sankara was swept into the revolution seeking to wrest control of Madagascar from France's lingering colonial rule. The protests inspired the West African native to read works by socialist leaders and seek wisdom from military strategy. Leaving Madagascar in 1973, he was determined to free his country from its colonial legacy. Lisa Bacon details the life of the revolutionary icon. [Directed by Tomás Pichardo-Espaillat, narrated by Christina Greer, music by WORKPLAYWORK / Cem Misirlioglu].
Feb 03, 2020
The Chasm | Think Like A Coder, Ep 6 | Alex Rosenthal
00:06:24
This is episode 6 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and must solve their way through a series of programming puzzles. [Directed by Kozmonot Animation Studio, narrated by Addison Anderson].
Jan 30, 2020
Licking bees and pulping trees: The reign of a wasp queen | Kenny Coogan
00:04:52
As the sun rises, something royal stirs inside a pile of firewood. It's the wasp queen; one of thousands who mated in late autumn and hibernated through the winter. Now she must emerge into the spring air to begin her reign. This queen is the lone survivor of her old hive, and now, she must become the foundress of a new one. Kenny Coogan details a year in the life of a wasp queen. [Directed Biljana Labovic, animated by Denis Chapon, narrated by Addison Anderson, music Stephen LaRosa].
Jan 28, 2020
How bones make blood | Melody Smith
00:04:21
Bones might seem rock-solid, but they're actually quite porous inside. Most of the large bones of your skeleton have a hollow core filled with soft bone marrow. Marrow's most essential elements are blood stem cells and for patients with advanced blood cancers like leukemia and lymphoma, the best chance for a cure is often a bone marrow transplant. How does this procedure work? Melody Smith explains. [Directed by Artrake Studio, narrated by Bethany Cutmore-Scott, music by Harlan Hodges / WORKPLAYWORK].
Jan 27, 2020
Why is cotton in everything? | Michael R. Stiff
00:04:33
Centuries ago, the Inca developed ingenuous suits of armor that could protect warriors from even the fiercest physical attacks. These hardy structures were made not from iron or steel, but rather something unexpectedly soft: cotton. Today cotton is used to make everything from fabric, to currency, diapers and fishing nets. Michael Stiff explores the science of what makes cotton so versatile. [Directed by WOW-HOW Studio, narrated by Addison Anderson].
Jan 24, 2020
What was so special about Viking ships? | Jan Bill
00:04:30
As the Roman Empire flourished, Scandinavians had small settlements and no central government. Yet by the 11th century, they had spread far from Scandinavia, gaining control of trade routes throughout Europe, conquering kingdoms as far as Africa, and building outposts in North America. What was the secret to their success? Jan Bill dives into the history of the formidable Viking longship. [Directed by TOTEM Studio, narrated by Addison Anderson, music by Julián André and Blas Cernicchiaro].
Jan 21, 2020
Mating frenzies, sperm hoards, and brood raids: the life of a fire ant queen | Walter R. Tschinkel
00:04:59
In the spring, just after a heavy rainfall, male and female fire ants swarm the skies for a day of romance, known as the nuptial flight. Thousands of reproduction-capable ants take part in a mating frenzy, and for one successfully mated female, her work is only beginning. Walter R. Tschinkel details how the new queen builds a colony and protects it from neighboring ant armies. [Directed by Lisa Vertudaches, narrated by Addison Anderson, music by Phil Brookes].
Jan 16, 2020
The Artists | Think Like A Coder, Ep 5 | Alex Rosenthal
00:06:25
This is episode 5 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and must solve their way through a series of programming puzzles. [Directed by Kozmonot Animation Studio, narrated by Addison Anderson].
Jan 13, 2020
Can you solve the dragon jousting riddle? | Alex Gendler
00:04:23
After years of war, the world's kingdoms have come to an agreement. Every five years, teams representing the elves, goblins, and treefolk will compete in a grand tournament of dragon jousting. You have the important job of recording the scores for the inaugural tournament. But, you overslept and the games are already underway. Can you figure out the real score of each match? Alex Gendler shows how. [Directed by Artrake Studio, narrated by Addison Anderson].
Jan 10, 2020
The mysterious life and death of Rasputin | Eden Girma
00:04:52
On a night in 1916, Russian aristocrats set a plot of assassination into motion. If all went as planned, a man would be dead by morning, though others had already tried and failed. The monarchy was on the brink of collapse, and they believed this man was the single cause of it all. Who was he, and why was he to blame for the fate of an empire? Eden Girma explores the life of the notorious Rasputin. [Directed by Hype CG, narrated by Addison Anderson, music by Gabriel Maia].
Jan 08, 2020
Could a breathalyzer detect cancer? | Julian Burschka
00:04:17
How is it that a breathalyzer can measure the alcohol content in someone's blood, hours after they had their last drink, based on their breath alone? And could we use this same technology to detect disease by analyzing a person's breath, without having to use more invasive diagnostic tools like biopsies, blood draws, and radiation? Julian Burschka details the complicated process. [Directed by Cabong Studios, narrated by Addison Anderson, music by Matheus Wittmann].
Jan 06, 2020
A brief history of alcohol | Rod Phillips
00:04:56
Nobody knows exactly when humans began to create fermented beverages. The earliest known evidence comes from 7,000 BCE in China, where residue in clay pots has revealed that people were making an alcoholic beverage from fermented rice, millet, grapes, and honey. So how did alcohol come to fuel global trade and exploration? Roderick Phillips explores the evolution of alcohol. [Directed by Anton Bogaty, narrated by Addison Anderson].
Jan 02, 2020
Why should you read "Lord of the Flies" by William Golding? | Jill Dash
00:04:25
After witnessing the atrocities of his fellow man in World War II, William Golding was losing his faith in humanity. Later, during the Cold War, as superpowers began threatening one another with nuclear annihilation, he was forced to interrogate the very roots of human nature and violence. These musings would inspire his first novel: "Lord of the Flies." Jill Dash dives into the timeless satire. [Directed by Lucy Animation Studio / Silvia Prietov, narrated by Addison Anderson, music by Stephen LaRosa].
Dec 12, 2019
Hacking bacteria to fight cancer | Tal Danino
00:04:51
In 1884, an unlucky patient who had a rapidly growing cancer in his neck came down with an unrelated bacterial skin infection. As he recovered from the infection, the cancer surprisingly began to recede. The infection had stimulated the patient's immune system. Today, synthetic biologists program bacteria to safely deliver drugs directly to tumors. How is this possible? Tal Danino investigates. [Directed by Chris Bishop, narrated by Addison Anderson].
Dec 11, 2019
The Train Heist | Think Like A Coder, Ep 4 | Alex Rosenthal
00:05:43
This is episode 4 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and must solve their way through a series of programming puzzles. [Directed by Kozmonot Animation Studio, narrated by Addison Anderson].
Dec 09, 2019
How does chemotherapy work? | Hyunsoo Joshua No
00:05:05
During World War I, scientists were trying to develop an antidote to the poisonous yellow cloud known as mustard gas. They discovered the gas was irrevocably damaging the bone marrow of affected soldiers. This gave the scientists an idea: cancer cells and bone marrow both replicate rapidly. Could mustard gas be used to fight cancer? Hyunsoo No details the discovery and development of chemotherapy. [Directed by Artrake Studio, narrated by Addison Anderson].
Dec 05, 2019
Why doesn't the Leaning Tower of Pisa fall over? | Alex Gendler
00:04:49
In 1990, the Italian government enlisted top engineers to stabilize Pisa's famous Leaning Tower. There'd been many attempts during its 800 year history, but computer models revealed the urgency of their situation. The tower would topple if it reached an angle of 5.44 degrees— and it was currently leaning at 5.5. What gives the tower its infamous tilt? Alex Gendler explores the monument's history. [Directed by Aim Creative Studios, narrated by Addison Anderson, music by André Aires].
Dec 03, 2019
How corn conquered the world | Chris A. Kniesly
00:05:01
Corn currently accounts for more than one tenth of our global crop production. And over 99% of cultivated corn is the exact same type: Yellow Dent #2. This means that humans grow more Yellow Dent #2 than any other plant on the planet. So how did this single variety of this single plant become the biggest success story in agricultural history? Chris Kniesly investigates the rise of this wonder-crop. [Directed by Artrake Studio, narrated by Addison Anderson].
Dec 02, 2019
Is marijuana bad for your brain? | Anees Bahji
00:06:21
In 1970, marijuana was classified as a schedule 1 drug in the United States: the strictest designation possible, meaning it was completely illegal and had no recognized medical uses. Today, marijuana's therapeutic benefits are widely acknowledged, but a growing recognition for its medical value doesn't answer the question: is recreational marijuana use bad for your brain? Anees Bahji investigates. [Directed by Anton Bogaty, narrated by Addison Anderson, music by Bamm Bamm Wolfgang].
Dec 02, 2019
Can you outsmart this logical fallacy? | Alex Gendler
00:03:21
Meet Lucy. She was a math major in college, and aced all her courses in probability and statistics. Which do you think is more likely: that Lucy is a portrait artist, or that Lucy is a portrait artist who also plays poker? How do we know which statement is more likely to be true? Alex Gendler explores our tendency to look for shortcuts and the phenomenon known as the conjunction fallacy. [Directed by Artrake Studio, narrated by Addison Anderson, music by WORKPLAYWORK / Cem Misirlioglu].
Nov 25, 2019
History's "worst" nun | Theresa A. Yugar
00:04:32
Juana Ramírez de Asbaje sat before a panel of prestigious theologians, jurists, and mathematicians. They had been invited to test Juana's knowledge with the most difficult questions they could muster. But she successfully answered every challenge, from complicated equations to philosophical queries. Who was this impressive woman? Theresa Yugar details the life of the Mexican poet and scholar. [Directed by WOW-HOW Studio, narrated by Christina Greer, music by Stephen LaRosa].
Nov 21, 2019
How does laser eye surgery work? | Dan Reinstein
00:05:16
In 1948, Spanish ophthalmologist Jose Ignacio Barraquer Moner was fed up with glasses. He wanted a solution for blurry vision that fixed the eye itself, without relying on external aids. The surgery he eventually devised was called "keratomileusis," and his technique focused on reshaping the cornea— what we now know as LASIK. So how does laser eye surgery actually work? Dan Reinstein explains. [Directed by Hype CG, narrated by Addison Anderson].
Nov 19, 2019
The Furnace Bots | Think Like A Coder, Ep 3 | Alex Rosenthal
00:05:55
This is episode 3 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and must solve their way through a series of programming puzzles. [Directed by Kozmonot Animation Studio, narrated by Addison Anderson].
Nov 18, 2019
The myth of Loki and the master builder | Alex Gendler
00:04:25
Asgard, a realm of wonders, was where the Norse Gods made their home. There Odin's great hall of Valhalla towered above the mountains and Bifrost, the rainbow bridge, anchored itself. Though their domain was magnificent, it stood undefended from the giants and trolls who sought to destroy them. But a stranger appeared and made the gods an offer. Alex Gendler details the myth of the master builder. [Directed by Hype CG, narrated by Addison Anderson].
Nov 14, 2019
How does impeachment work? | Alex Gendler
00:04:56
For most jobs, it's understood that you can be fired – whether for crime, incompetence, or just poor performance. But what if your job happens to be the most powerful position in the country – or the world? That's where impeachment comes in. But how does it work? Alex Gendler details the process of impeachment. [Directed by Mark Phillips, narrated by Addison Anderson].
Sep 26, 2019
A brief history of cannibalism | Bill Schutt
00:04:30
15th century Europeans believed they had hit upon a miracle cure: a remedy for epilepsy, hemorrhage, bruising, nausea and virtually any other medical ailment. It was a brown powder known as "mumia," and was made by grinding up mummified human flesh. But just how common is human cannibalism, and how do cultures partake in it? Bill Schutt explores the complex history of cannibalism. [Directed by Basa, narrated by Addison Anderson].
Jul 25, 2019
The Opposites Game | Brendan Constantine
00:04:25
A classroom erupts into a war of words as students grapple with a seemingly simple prompt: what is the opposite of a gun? This animation is part of the TED-Ed 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. [A TED-Ed Production, a film by Anna Samo + Lisa LaBracio, poem by Brendan Constantine, poem performed by Brendan Constantine, sound Design by Weston Fonger, animation & Design by Anna Samo + Lisa LaBracio, animation Produced by Gerta Xhelo].
Jun 03, 2019
The genius of Marie Curie | Shohini Ghose
00:04:43
Marie Skłodowska Curie's revolutionary research laid the groundwork for our understanding of physics and chemistry, blazing trails in oncology, technology, medicine, and nuclear physics, to name a few. But what did she actually do? Shohini Ghose expounds on some of Marie Skłodowska Curie's most revolutionary discoveries. [Directed by Anna Nowakowska, narrated by Julianna Zarzycki, music by Matthias Runge].
Apr 05, 2019
How to spot a pyramid scheme | Stacie Bosley
00:04:49
In 2004, a nutrition company offered a life-changing opportunity to earn a full-time income for part-time work. There were only two steps to get started: purchase a $500 kit and recruit two more members. By 2013, the company was making $200 million. There was just one problem -- the vast majority of members earned less than they paid in. Stacie Bosley explains what a pyramid scheme is and how to spot one. [Directed by Wooden Plane Productions, narrated by Bethany Cutmore-Scott, music by Matthew Reid].
Apr 02, 2019
Frida Kahlo: The woman behind the legend | Iseult Gillespie
00:03:54
In 1925, Frida Kahlo was on her way home from school in Mexico City when the bus she was riding collided with a streetcar. She suffered near-fatal injuries and her disability became a major theme in her paintings. Over the course of her life, she would establish herself as the creator and muse behind extraordinary pieces of art. Iseult Gillespie dives into the life and work of Frida Kahlo. [Directed by Ivana Bošnjak and Thomas Johnson, narrated by Christina Greer, music by Stephen LaRosa].
Mar 28, 2019
Why do we love? A philosophical inquiry | Skye C. Cleary
00:05:35
Ah, romantic love; beautiful and intoxicating, heart-breaking and soul-crushing... often all at the same time! If romantic love has a purpose, neither science nor psychology has discovered it yet – but over the course of history, some of our most respected philosophers have put forward some intriguing theories. Skye C. Cleary outlines five of these philosophical perspectives on why we love. [Directed by Avi Ofer, narrated by Addison Anderson, music by Brooks Ball and Cem Misirlioglu].
Mar 15, 2019
How stress affects your brain | Madhumita Murgia
00:04:00
Stress isn't always a bad thing; it can be handy for a burst of extra energy and focus, like when you're playing a competitive sport or have to speak in public. But when it's continuous, it actually begins to change your brain. Madhumita Murgia shows how chronic stress can affect brain size, its structure, and how it functions, right down to the level of your genes. [Directed by Andrew Zimbelman, narrated by Addison Anderson, music by Josh Smoak].
Mar 15, 2019
What is depression? | Helen M. Farrell
00:04:14
Depression is the leading cause of disability in the world; in the United States, close to ten percent of adults struggle with the disease. But because it's a mental illness, it can be a lot harder to understand than, say, high cholesterol. Helen M. Farrell examines the symptoms and treatments of depression, and gives some tips for how you might help a friend who is suffering. [Directed by Artrake Studio, narrated by Addison Anderson].
Mar 01, 2019
Why is ketchup so hard to pour? | George Zaidan
00:04:14
Ever go to pour ketchup on your fries...and nothing comes out? Or the opposite happens, and your plate is suddenly swimming in a sea of red? George Zaidan describes the physics behind this frustrating phenomenon, explaining how ketchup and other non-Newtonian fluids can suddenly transition from solid to liquid and back again. [Directed by TOGETHER, narrated by George Zaidan].
Feb 22, 2019
What would happen if you didn't drink water? | Mia Nacamulli
00:04:37
Water is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role does water play in our bodies, and how much do we actually need to drink to stay healthy? Mia Nacamulli details the health benefits of hydration. [Directed by Chris Bishop, narrated by Addison Anderson].
Feb 15, 2019
The wars that inspired Game of Thrones | Alex Gendler
00:05:45
Beginning around 1377, medieval England was shaken by a power struggle between two noble families, which spanned generations and involved a massive cast of characters, complex motives and shifting loyalties. Sound familiar? Alex Gendler illustrates how the historical conflict known as the Wars of the Roses served as the basis for much of the drama in Game of Thrones. [Directed by Brett Underhill, narrated by Addison Anderson, music by WORKPLAYWORK and Cem Misirlioglu].
Feb 15, 2019
The science of spiciness | Rose Eveleth
00:03:39
When you take a bite of a hot pepper, your body reacts as if your mouth is on fire -- because that's essentially what you've told your brain! Rose Eveleth details the science and history behind spicy foods, giving insights into why some people continue to pay the painful price for a little spice. [Directed by Flaming Medusa Studios Inc., narrated by Rose Eveleth].
Feb 15, 2019
How Thor got his hammer | Scott A. Mellor
00:04:39
Loki the mischief-maker, writhes in Thor's iron grip. The previous night, he'd snuck up on Thor's wife and shorn off her beautiful hair. To fix what he'd done, Loki rushes to the dwarves and tricks them into making gifts for the gods. Wanting to best their smith rivals, the dwarves make a set of golden treasures, including a hammer called Mjolnir. Scott A. Mellor traces the legend of Thor's hammer. [Directed by Remus and Kiki, narrated by Addison Anderson, music by Playhead].
Jan 07, 2019
The history of the world according to cats | Eva-Maria Geigl
00:04:20
In ancient times, wildcats were fierce carnivorous hunters. And unlike dogs, who have undergone centuries of selective breeding, modern cats are genetically very similar to ancient cats. How did these solitary, fierce predators become our sofa sidekicks? Eva-Maria Geigl traces the domestication of the modern house cat. [Directed by Chintis Lundgren, narrated by Bethany Cutmore-Scott, music by Draško Ivezić].
Jan 03, 2019
Are we running out of clean water? | Balsher Singh Sidhu
00:04:43
Despite water covering 71% of the planet's surface, more than half the world's population endures extreme water scarcity for at least one month a year. Current estimates predict that by 2040, up to 20 more countries could be experiencing water shortages. These statistics raise a startling question: is the Earth running out of clean water? Balsher Singh Sidhu takes a closer look at water consumption. [Directed by Kozmonot Animation Studio, narrated by Addison Anderson, music by Deniz Dogancay].
Dec 06, 2018
Why should you read Kurt Vonnegut? | Mia Nacamulli
00:05:04
Kurt Vonnegut found the tidy, satisfying arcs of many stories at odds with reality, and he set out to explore the ambiguity between good and bad fortune in his own novels. He tried to make sense of human behavior by studying the shapes of stories — ditching straightforward chronologies and clear-cut fortunes. Mia Nacamulli dives into the sometimes dark, yet hopeful works of Vonnegut. [Directed by TED-Ed, narrated by Addison Anderson].
Nov 29, 2018
Does time exist? | Andrew Zimmerman Jones
00:05:10
The earliest time measurements were observations of cycles of the natural world, using patterns of changes from day to night and season to season to build calendars. More precise time-keeping eventually came along to put time in more convenient boxes. But what exactly are we measuring? Andrew Zimmerman Jones contemplates whether time is something that physically exists or is just in our heads. [TED-Ed Animation by Nice Shoes].
Oct 23, 2018
How do cigarettes affect the body? | Krishna Sudhir
00:05:13
Cigarettes aren't good for us. That's hardly news -- we've known about the dangers of smoking for decades. But how exactly do cigarettes harm us, and can our bodies recover if we stop? Krishna Sudhir details what happens when we smoke -- and when we quit. [TED-Ed Animation by TED-Ed].
Sep 13, 2018
The treadmill's dark and twisted past | Conor Heffernan
00:03:55
The constant thud underneath your feet. The constrained space. The monotony of going nowhere fast. Running on a treadmill can certainly feel like torture, but did you know it was originally used for that very purpose? Conor Heffernan details the dark and twisted history of the treadmill. [Directed by Yukai Du, narrated by Addison Anderson, music by WORKPLAYWORK and Cem Misirlioglu].
Sep 07, 2017