How the world’s first subway system was built – Christian Wolmar

From TED Ed. Learn more about our student voice program, TED-Ed Clubs: http://bit.ly/2J5g4eS View full lesson: https://ed.ted.com/lessons/how-the-world-s-first-subway-system-was-built-christian-wolmar It was the dawn of 1863, and London’s not-yet-opened subway system — the first of its kind in the world — had the city in an uproar. Most people thought the project, which cost more than 100 million…

The surprising reasons animals play dead – Tierney Thys

From TED Ed. Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-surprising-reasons-animals-play-dead-tierney-thys From lemurs to lizards, ants to amphibians, sharks to chickens, hundreds of animals “play dead” as a survival tactic. But how and why do animals do this? Tierney Thys explains how this curious behavior, known as tonic immobility or TI for short,…

What causes headaches? – Dan Kwartler

From TED Ed. Download a free audiobook and support TED-Ed’s nonprofit mission: https://adbl.co/2Hejwql Check out Oliver Sacks’s “The Man Who Mistook His Wife for a Hat”: http://bit.ly/2Hk8ShM View full lesson: https://ed.ted.com/lessons/what-causes-headaches-dan-kwartler In ancient Greece, the best-known remedy for a long-standing headache was to drill a small hole in the skull to drain supposedly infected blood.…

The Cambodian myth of lightning, thunder, and rain – Prumsodun Ok

From TED Ed. Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-cambodian-myth-of-lightning-thunder-and-rain-prumsodum-ok “Moni Mekhala Ream Eyso” is the most sacred dance drama in Cambodia. It is performed every year in the buong suong ceremony, and explains the origins of lightning, thunder and rain according to the Khmer people. Prumsodun Ok tells this empowering tale…

The rise and fall of the Byzantine Empire – Leonora Neville

From TED Ed. Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-rise-and-fall-of-the-byzantine-empire-leonora-neville Most history books will tell you that the Roman Empire fell in the fifth century CE, but this would’ve come as a surprise to the millions who lived in the Roman Empire through the Middle Ages. This Medieval Roman Empire, today called…

The most successful pirate of all time – Dian Murray

From TED Ed. Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-most-successful-pirate-of-all-time-dian-murray At the height of their power, infamous Caribbean pirates like Blackbeard and Henry Morgan commanded as many as ten ships and several hundred men. But their stories pale next to the most successful pirate of all time, who commanded 1,800 vessels, made…

Why isn’t the world covered in poop? – Eleanor Slade and Paul Manning

From TED Ed. Learn more by reading Douglas J. Emlen’s “Animal Weapons”: http://bit.ly/2GqvjkS View full lesson: https://ed.ted.com/lessons/why-isn-t-the-world-covered-in-poop-eleanor-slade-and-paul-manning Check out our book rec page: http://bit.ly/2I3INQC Each day, the animal kingdom produces roughly enough poop to match the volume of water pouring over Victoria Falls. So why isn’t the planet covered in the stuff? You can thank…

Can you solve the buried treasure riddle? – Daniel Griller

From TED Ed. Practice more problem-solving at https://brilliant.org/TedEd/ View full lesson: https://ed.ted.com/lessons/can-you-solve-the-buried-treasure-riddle-daniel-griller After a massive storm tears through the Hex Archipelago, you find five grizzled survivors in the water. As an act of gratitude for saving them, they reveal a secret – the island they were just on holds some buried treasure. But when the…

Cannibalism in the animal kingdom – Bill Schutt

From TED Ed. Check out Bill Schutt’s “Cannibalism: A Perfectly Natural History”: http://bit.ly/2HLWjrU View full lesson: https://ed.ted.com/lessons/cannibalism-in-the-animal-kingdom-bill-schutt Until recently, scientists thought cannibalism was a rare response to starvation or other extreme stress. Well-known cannibals like the praying mantis and black widow were considered bizarre exceptions. But now, we know they more or less represent the…

Why should you read “The Handmaid’s Tale”? – Naomi R. Mercer

From TED Ed. Download a free audiobook and support TED-Ed’s nonprofit mission: http://adbl.co/2I9LlgS Check out Margaret Atwood’s “The Handmaid’s Tale”: http://bit.ly/2FASwQV View full lesson: https://ed.ted.com/lessons/why-should-you-read-the-handmaid-s-tale-naomi-r-mercer Margaret Atwood’s speculative fiction masterpiece “A Handmaid’s Tale” explores the consequences of complacency and how power can be wielded unfairly. Atwood’s chilling vision of a dystopian regime has captured readers’…

The myth of King Midas and his golden touch – Iseult Gillespie

From TED Ed. Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-king-midas-and-his-golden-touch-iseult-gillespie In Greek mythology, King Midas is known as a rogue ruler whose antics bemused his people and irritated the Gods. Many know the classic story of Midas’s golden touch, but the foolish king was also known for his unusual pair of ears.…

The weird and wonderful metamorphosis of the butterfly – Franziska Bauer

From TED Ed. Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-weird-and-wonderful-metamorphosis-of-the-butterfly-franziska-bauer In order to become a butterfly, a caterpillar’s body dissolves almost completely and is rebuilt from its own juices. Butterflies are just a few of the 800,000 insect species that transition from larvae to adults through complete metamorphosis. But how exactly does…

The myth of Thor’s journey to the land of giants – Scott A. Mellor

From TED Ed. Download a free audiobook and support TED-Ed’s nonprofit mission: http://adbl.co/2om4O4Q Check out Neil Gaiman’s “Norse Mythology”: http://bit.ly/2opZptA View full lesson: https://ed.ted.com/lessons/the-myth-of-thor-s-journey-to-the-land-of-giants-scott-a-mellor Thor – son of Odin, god of thunder, and protector of mankind – struggled mightily against his greatest challenge yet: opening a bag of food. How had the mighty god fallen…