TED Talks
TED: The world doesn't need more nuclear weapons | erika Gregory
Today nine nations collectively control more than 15,000 nuclear weapons, each hundreds of times more powerful than those dropped on Hiroshima and Nagasaki. We don't need more nuclear weapons; we need a new generation to face the...
SciShow
Why Do Earthworms Come Out After It Rains?
Scientists come up with lots of possible reasons why rain triggers earthworms mysterious behavior: popping out of the soil and getting stranded on the ground.
SciShow
Why Is My Poop Green?
One of the most commonly googled questions in the world is why feces can be green. Well, Quick Questions has the answer!
TED-Ed
TED-ED: The philosophy of cynicism - William D. Desmond
In the 4th century BCE, a young Diogenes of Sinope was found to be counterfeiting coins. He was stripped of his citizenship, his money, all his possessions and sent into exile. He decided he would live self-sufficiently, close to nature,...
TED Talks
TED: How to upgrade democracy for the Internet era | Pia Mancini
Pia Mancini and her colleagues want to upgrade democracy in Argentina and beyond. Through their open-source mobile platform they want to bring citizens inside the legislative process, and run candidates who will listen to what they say.
SciShow
The Times and Troubles of the Scientific Method
UPDATE: We got a couple of things wrong when it comes to gravity (particularly that it has nothing to do with photons). Science is working tirelessly night and day to disprove its own theories about how the universe works (or at least,...
SciShow
What We’re Learning from the Brightest Supernova Ever Seen - SciShow News
It’s been a great week for space explosions! Astronomers learned more about the mechanism that causes novas by looking at the nova V906 Carinae, and the brightest supernova ever recorded shed some new light on pulsation pair-instability.
SciShow Kids
Amazing Snakes!
Snakes are super cool and super helpful, but people believe a lot of things about them that just aren't true. Join Jessi and Squeaks to learn what's true and what's false about these radical reptiles!
TED Talks
María Neira: This is your brain on air pollution
Air pollution knows no borders -- even in your own body, says public health expert María Neira. In this startling talk, she describes how the microscopic particles and chemicals you breathe affect all your major organs (including your...
SciShow
Animal Clothes & Exploding Toads | SciShow Quiz Show
Two authors battle it out on SciShow to see who knows the most about animal clothes and mysterious circumstances.
SciShow
Why does Saturn have rings?
Hank fields one of the most commonly asked questions about our solar system: Why does Saturn have rings? Part of the answer has to do with the fact that it's not the only planet that has them. Watch to learn more!
TED Talks
Robert Full: Robots inspired by cockroach ingenuity
Insects and animals have evolved some amazing skills -- but, as Robert Full notes, many animals are actually over-engineered. The trick is to copy only what's necessary. He shows how human engineers can learn from animals' tricks.
Crash Course Kids
Defining a Problem
So, how do engineers even figure out what problem needs to get fixed? And what's the difference between identifying a problem and just complaining about something. In this episode of Crash Course Kids, Sabrina talks about how we can all...
MinuteEarth
Why Do You Make So Many Poop Videos? (& Other Questions)
We answer your burning questions in our first-ever Q&A video. Thanks for asking, and for watching!! ___________________________________________ Credits (and Twitter handles): Script Editor: Alex Reich (@alexhreich) Video Illustrator:...
TED Talks
TED: Rethinking infidelity ... a talk for anyone who has ever loved | Esther Perel
Infidelity is the ultimate betrayal. But does it have to be? Relationship therapist Esther Perel examines why people cheat, and unpacks why affairs are so traumatic: because they threaten our emotional security. In infidelity, she sees...
TED Talks
TED: Want to be happier? Stay in the moment | Matt Killingsworth
When are humans most happy? To gather data on this question, Matt Killingsworth built an app, Track Your Happiness, that let people report their feelings in real time. Among the surprising results: We're often happiest when we're lost in...
3Blue1Brown
What does area have to do with slope? Essence of Calculus - Part 9 of 11
Derivatives are about slope, and integration is about area. These ideas seem completely different, so why are they inverses?
TED Talks
Barry Schwartz: The way we think about work is broken
What makes work satisfying? Apart from a paycheck, there are intangible values that, Barry Schwartz suggests, our current way of thinking about work simply ignores. It's time to stop thinking of workers as cogs on a wheel.
TED Talks
TED: This is what enduring love looks like | Alec Soth and Stacey Baker
Stacey Baker has always been obsessed with how couples meet. When she asked photographer Alec Soth to help her explore this topic, they found themselves at the world's largest speed-dating event, held in Las Vegas on Valentine's Day, and...
SciShow
Do Women Have Adam's Apples?
Quick Questions takes on the matter of the adam's apple -- The fact is, everyone has one! Learn what it really is, what its purpose is, and why they might look different in different people.
TED Talks
Paul Sereno: Digging up dinosaurs
Strange landscapes, scorching heat and (sometimes) mad crocodiles await scientists seeking clues to evolution's genius. Paleontologist Paul Sereno talks about his surprising encounters with prehistory -- and a new way to help students...
TED-Ed
TED-Ed: The story behind your glasses - Eva Timothy
What scientific thinkers and achievements have led to vast improvements in optics over the centuries? Discover the fascinating ways that our understanding of light informs the world in which we live.
TED-Ed
TED-Ed: How folding paper can get you to the moon - Adrian Paenza
Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential growth. This lesson will leave you wanting to grab a piece of paper...