TED Talks
TED: Fighting with nonviolence | Scilla Elworthy
How do you deal with a bully without becoming a thug? In this wise and soulful talk, peace activist Scilla Elworthy maps out the skills we need -- as nations and individuals -- to fight extreme force without using force in return. To...
TED Talks
TED: A novel idea for cleaning up oil spills | Cesar Harada
When TED Senior Fellow Cesar Harada heard about the devastating effects of the BP Oil spill in the Gulf of Mexico in 2010, he quit his dream job and moved to New Orleans to develop a more efficient way to soak up the oil. He designed a...
TED Talks
Farida Nabourema: Is your country at risk of becoming a dictatorship? Here's how to know
Farida Nabourema has dedicated her life to fighting the military regime in Togo, Africa's oldest autocracy. She's learned two truths along the way: no country is destined to be oppressed -- and no country is immune to dictatorship. But...
SciShow
Skylab: The First Americans Living In Space
Skylab set the stage for future space stations like Mir and the ISS, and showed that people really could live in space for a while and do important scientific research.
3Blue1Brown
Circle Division Solution: Circle Division - Part 2 of 2
Moser's circle problem, and its solution.
3Blue1Brown
Derivative formulas through geometry | Chapter 3, Essence of calculus
Introduction to the derivatives of polynomial terms and trigonometric functions thought about geometrically and intuitively. The goal is for these formulas to feel like something the student could have discovered, rather than something...
TED Talks
TED: The taboo secret to better health | Molly Winter
Our poop and pee have superpowers, but for the most part we don't harness them. Molly Winter faces down our squeamishness and asks us to see what goes down the toilet as a resource, one that can help fight climate change, spur innovation...
SciShow
Crypto and NFTs Are Environmental Disasters...But Do They Have to Be?
The world of cryptocurrency and NFTs is riddled with controversy, but somewhere amid all of that blockchain there's some reckoning with reality that must be done.
MinuteEarth
How To Turn Poop Into Power
We could generate a lot of usable energy from human and animal poop through greater adoption of a process for using microbes to break down poop into methane gas. ___________________________________________ To learn more, start your...
SciShow
Facts About Fracking
Hank gives us a summary of the important facts about fracking: what it is, why we do it, and how it actually isn't all butterflies and cupcakes.
TED Talks
Julia Bacha: Pay attention to nonviolence
In 2003, the Palestinian village of Budrus mounted a 10-month-long nonviolent protest to stop a barrier being built across their olive groves. Did you hear about it? Didn't think so. Brazilian filmmaker Julia Bacha asks why we only pay...
TED Talks
Soraya Chemaly: The power of women's anger
Anger is a powerful emotion -- it warns us of threat, insult, indignity and harm. But across the world, girls and women are taught that their anger is better left unvoiced, says author Soraya Chemaly. Why is that, and what might we lose...
SciShow
How Long Will the Voyager Spacecraft Last?
For more than 40 years, the Voyager probes have traveled through space sending back all kinds of fascinating data. But these probes were never meant to send us data forever - so how much longer will these amazing probes last?
TED Talks
TED: A librarian's case against overdue book fines | Dawn Wacek
Libraries have the power to create a better world; they connect communities, promote literacy and spark lifelong learners. But there's one thing that keeps people away: the fear of overdue book fines. In this thought-provoking talk,...
TED Talks
Erica Frenkel: The universal anesthesia machine
What if you're in surgery and the power goes out? No lights, no oxygen -- and your anesthesia stops flowing. It happens constantly in hospitals throughout the world, turning routine procedures into tragedies. Erica Frenkel demos one...
TED Talks
Randall Munroe: Comics that ask "what if?"
Web cartoonist Randall Munroe answers simple what-if questions ("what if you hit a baseball moving at the speed of light?") using math, physics, logic and deadpan humor. In this charming talk, a reader's question about Google's data...
MinuteEarth
The Great Acceleration
We’re in the middle of a rapid, unprecedented, and world-changing increase in the intensity and scale of human activity on this planet.
TED Talks
TED: The ocean's ingenious climate solutions | Susan Ruffo
The ocean is often thought of as a victim of climate change, in need of human protection. But ocean expert Susan Ruffo says that mindset needs to shift. From storing carbon to providing protection to coastal communities, Ruffo highlights...
TED Talks
César Hidalgo: A bold idea to replace politicians
César Hidalgo has a radical suggestion for fixing our broken political system: automate it! In this provocative talk, he outlines a bold idea to bypass politicians by empowering citizens to create personalized AI representatives that...
TED Talks
TED: How to topple a dictator | Srdja Popovic
People-powered resistance: can it work? Srdja Popovic led the nonviolent movement that took down Milosevic in Serbia in 2000; he lays out the plans, skills and tools that a people-powered movement needs -- from nonviolent tactics to a...
SciShow
5D, Holograms, & DNA: Amazing Hard Drives of the Future
Today's data storage solutions have an expiration date. What's on the horizon to replace them?
Crash Course
The Anthropocene and the Near Future: Crash Course Big History
In which John Green, Hank Green, and Emily Graslie teach you about the Anthropocene, an unofficial geological era that covers the last century or so, in which humanity has made massive progress. We've discovered the Higgs-Boson particle,...
SciShow
Catching Solar Wind: A Truly Endless Energy Source?
We could quite possibly catch solar winds as a means for endless energy, and though it sounds like science fiction, we have the materials to do this now.
SciShow
Space Robots That Hop
Have you ever wanted to know what it would be like to have an army of hopping robots? NASA might bring that dream to life as we explore our solar system.