TED-Ed: Lessons Worth Sharing

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Episodes

Date Title & Description Contributors
2020-08-09

  Can you solve the honeybee riddle? | Dan Finkel

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 ...
  Dan Finkel author
2020-08-09

  Ethical dilemma: The burger murders | George Siedel and Christine Ladwig

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 a...
  George Siedel and Christine Ladwig author
2020-08-09

  No one can figure out how eels have sex | Lucy Cooke

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 coul...
  Lucy Cooke author
2020-07-23

  How do our brains process speech? | Gareth Gaskell

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 ...
  Gareth Gaskell author
2020-07-21

  The myth of Jason, Medea, and the Golden Fleece | Iseult Gillespie

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 hel...
  Iseult Gillespie author
2020-07-21

  The rise and fall of the Celtic warriors | Philip Freeman

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....
  Philip Freeman author
2020-07-16

  The Egyptian myth of the death of Osiris | Alex Gendler

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....
  Alex Gendler author
2020-07-14

  The race to decode a mysterious language | Susan Lupack

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 lan...
  Susan Lupack author
2020-07-13

  What makes volcanoes erupt? | Steven Anderson

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 ...
  Steven Anderson author
2020-07-09

  What happened when the United States tried to ban alcohol | Rod Phillips

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...
  Rod Phillips author