TED-Ed

View full lesson: http://ed.ted.com/lessons/the-genius-of-mendeleev-s-periodic-table-lou-sericoThe elements had been listed and carefully arranged before Dmitri Mendeleev. They had even been organized by similar properties before. So why is Mendeelev's periodic table the one that has endured? Lou Serico explains via eka-aluminum, an element whose existence Mendeelev predicted years before it was d...

View full lesson: http://ed.ted.com/lessons/david-mccandless-the-beauty-of-data-visualizationDavid McCandless turns complex data sets, like worldwide military spending, media buzz, and Facebook status updates, into beautiful, simple diagrams that tease out unseen patterns and connections. Good design, he suggests, is the best way to navigate information glut -- and it may just change the way we se...

View full lesson: http://ed.ted.com/lessons/a-needle-in-countless-haystacks-finding-habitable-planets-ariel-anbarOut of billions of galaxies and billions of stars, how do we find Earth-like habitable worlds? What is essential to support life as we know it? Ariel Anbar provides a checklist for finding life on other planets. Lesson by Ariel Anbar, animation by TED-Ed. Learn more about your ad choice...

Puzzle through the ethical dilemma of intellectual property rights, and decide: how should we determine ownership of work?--In the city of Ockham, spellcasters invent incantations and publish them in scrolls that others can purchase. Unfortunately, you can’t always afford them. But one day, a friend tells you he uses an illegal duplication spell to copy scrolls. So, do you use his counterfeit scro...

Episode 4: Decide on a presentation plan that makes you feel prepared to communicate an idea to an audience confidently and passionately.--This is episode 4 of the animated series, “Public Speaking 101.” Ideas change everything — and since language lets us share our ideas, learning how to use it well gives speakers the power to inspire people and even change how they think. This 11-episode course...

View full lesson: http://ed.ted.com/lessons/three-anti-social-skills-to-improve-your-writing-nadia-kalmanYou need social skills to have a conversation in real life -- but they're quite different from the skills you need to write good dialogue. Educator Nadia Kalman suggests a few "anti-social skills," like eavesdropping and muttering to yourself, that can help you write an effective dialogue for y...

Discover the world’s biggest battery and explore how inventors are creating other giant batteries to help power the world— sustainably. --As of 2020, the world’s biggest lithium-ion battery is hooked up to the Southern California power grid and can provide enough power for about 250,000 homes. But it's actually not the biggest battery in the world: a pair of lakes are. How can lakes be a battery?...

When two people are trying to make a deal -- whether they're competing or cooperating -- what's really going on inside their brains? Behavioral economist Colin Camerer shows research that reveals just how little we're able to predict what others are thinking. And he presents an unexpected study that shows chimpanzees might just be better at it than we are. (Filmed at TEDxCalTech.)Talk by Colin Cam...

Practice more problem-solving at https://brilliant.org/TedEd--It’s moments after the Big Bang and you’re still reeling. You’re a particle of matter, amidst a chaotic stew of forces, fusion, and annihilation. If you’re lucky and avoid being destroyed by antimatter, you’ll be the seed of a future galaxy. Can you ensure that you’re the last particle standing? James Tanton shows how. Lesson by James T...

Learn more at https://brilliant.org/TedEd--Ever since Einstein published his Special Theory of Relativity, one equation has been the bane of humans hoping to explore the stars: E=mc². In addition to informing our understanding of gravity, space, and time, this formula implies that traveling at or beyond light speed is impossible. Why is that? Lindsay DeMarchi and Fabio Pacucci explain the physics...

View full lesson: http://ed.ted.com/lessons/how-life-came-to-land-tierney-thysSpiders and crustaceans, also known as arthropods, led the charge from water to land--now outnumbering all terrestrial animals. But what about arthropods makes them so adaptable to life on land? Marine biologist Tierney Thys, and Noé Sardet and Sharif Mirshak of the Plankton Chronicles Project, shows us a world of fascin...

Travel into the digestive system to see how food is turned into waste, and what causes the different colors and textures of poop.--The average person poops out approximately 11,030 kilograms of cumulative waste in a lifetime. That’s the equivalent of more than 6 SUVs. Oftentimes, that poop is brown. Why is that, considering all the comestibles one consumes? And what’s going on when poop appears in...

View full lesson: http://ed.ted.com/lessons/would-you-weigh-less-in-an-elevator-carol-heddenWhat happens when you jump in a moving elevator? Do you weigh more when you're going up and less when you're going down? Carol Hedden explores the relationship between gravity, weight, and relative motion, using a moving elevator to explain the fascinating physics. Lesson by Carol Hedden, animation by Londo...

View full lesson: http://ed.ted.com/lessons/the-oddities-of-the-first-american-election-kenneth-c-davisHow did George Washington become the first president of the United States in 1789? Who got to decide--or vote--who would become president, and how did they decide the winner? Kenneth C. Davis unveils the surprising story behind America's first presidential election. Lesson by Kenneth C. Davis, an...

Explore the challenges of Parker Solar Probe’s mission to touch the Sun, and what we could learn about the star as we get closer.--In 2021, the Parker Solar Probe achieved its mission to touch the Sun, skimming through its outermost atmosphere. Since then, it’s carved closer and closer paths, but probing deeper into the corona— without melting, exploding, or falling into the Sun— is a monumental e...

Former "young Republican" Larry Lessig talks about what Democrats can learn about copyright from their opposite party, considered more conservative. A surprising lens on remix culture. (Filmed at TEDxNYED.)Talk by Lawrence Lessig. Learn more about your ad choices. Visit megaphone.fm/adchoices

Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/BMHi/View full lesson: http://ed.ted.com/lessons/kevin-alloca-why-videos-go-viralKevin Allocca is YouTube's Trends Manager, and he has deep thoughts about silly web videos. In this talk from TEDYouth, he shares the 4 reasons a video goes viral. Talk by Kevin Allocca. Learn more about your ad choices. Visit megaphone.f...

Episode 5: Learn to develop your voice and body language so that you are conveying meaning authentically, confidently, and comfortably.--This is episode 5 of the animated series, “Public Speaking 101.” Ideas change everything — and since language lets us share our ideas, learning how to use it well gives speakers the power to inspire people and even change how they think. This 11-episode course wi...

Dig into the Maya myth of the moon goddess, Ix Chel, and follow her story as she falls in— and out of— love with the sun god. --The sun god was in love with the moon goddess, Ix Chel. But the goddess’ grandfather was very possessive, and would not let the sun god anywhere near his beloved granddaughter. Desperate to be together, they escaped and were ready to light up the sky with their powerful r...

When most well-intentioned aid workers hear of a problem they think they can fix, they go to work. This, Ernesto Sirolli suggests, is naïve. In this funny and impassioned talk, he proposes that the first step is to listen to the people you're trying to help, and tap into their own entrepreneurial spirit. His advice on what works will help any entrepreneur. Talk by Ernesto Sirolli. Learn more about...

Episode 1: Learn how to identify the qualities that make an idea worth sharing with an audience.--This is episode 1 of the animated series, “Public Speaking 101.” Ideas change everything — and since language lets us share our ideas, learning how to use it well gives speakers the power to inspire people and even change how they think. This 11-episode course will teach you how to identify, develop,...

View full lesson: http://ed.ted.com/lessons/does-your-vote-count-the-electoral-college-explained-christina-greerYou vote, but then what? Discover how your individual vote contributes to the popular vote and your state's electoral vote in different ways--and see how votes are counted on both state and national levels. Lesson by Christina Greer, animation by Marked Animation. Learn more about your a...

Get to know the story of Antigone, daughter of Oedipus, who was determined to give her slain brother Polyneices a proper burial.--The gods watched as Oedipus’ daughter, Antigone, stole out of the palace in Thebes the morning after a devastating battle. Antigone was on a dangerous mission to do what she felt was right, though it meant risking her life. She sought to abide by divine law and honor he...

Dig into the close relationship between figs and wasps, and find out if it's normal and safe for bugs to be in our food.--In 2023, a US grocer recalled over 10,000 cases of broccoli-cheddar soup over concerns they contained too much of an unintended ingredient. That ingredient? Bugs. We know insects regularly come into contact with our food— but how many are you actually eating? And is it okay? Ca...

The only way into the world’s most exclusive club is to solve a challenge from the Demon of Reason. Can you get into the party?--Once a year, thousands of logicians descend into the desert for Learning Man. At the center of that gathering is the world’s most exclusive club, where under the full moon the annual logician’s rave takes place. The entry is guarded by the Demon of Reason, and the only w...