TED Talks
TED: It's time for women to run for office | Halla Tomasdottir
With warmth and wit, Halla Tomasdottir shares how she overcame media bias, changed the tone of the political debate and surprised her entire nation when she ran for president of Iceland -- inspiring the next generation of leaders along...
SciShow
Why It's Good for COVID-19 Models to Be Wrong
As we react to the predictions that epidemiological models make, changing the ways we act and go about our lives, those estimates can appear totally off. But if a model’s predictions end up being wrong, that might mean it's done exactly...
SciShow
How Old Are You? Well, Your Liver Is 3
This week, a group of researchers use nuclear fallout to figure out how old liver cells are, while another gets one step closer to predicting volcanic eruptions.
TED Talks
Arthur Benjamin: A performance of "Mathemagic"
In a lively show, mathemagician Arthur Benjamin races a team of calculators to figure out 3-digit squares, solves another massive mental equation and guesses a few birthdays. How does he do it? He’ll tell you.
TED-Ed
TED-Ed: Can you solve the fortress riddle? | Henri Picciotto
Bad news: your worst enemies are at the gate. Your fledgling kingdom guards the world's only herd of tiny dino creatures. To you, they're sacred. To everyone else, they're food. The three closest nation-states have teamed up to smash...
TED Talks
TED: Have we reached the end of physics? | Harry Cliff
Why is there something rather than nothing? Why does so much interesting stuff exist in the universe? Particle physicist Harry Cliff works on the Large Hadron Collider at CERN, and he has some potentially bad news for people who seek...
3Blue1Brown
Vectors, what even are they? Essence of Linear Algebra - Part 1 of 15
What is a vector? Is it an arrow in space? A list of numbers?
SciShow
10 Bizarre Ways to Avoid Being Dinner
If you’re a wild animal, you might spend your days actively trying to NOT become another animal's dinner. And some animals have come up with some pretty bizarre strategies to stay safe.
TED Talks
Chris Jordan: Turning powerful stats into art
Artist Chris Jordan shows us an arresting view of what Western culture looks like. His supersized images picture some almost unimaginable statistics -- like the astonishing number of paper cups we use every single day.
SciShow
Killer Gulls Rip Into Whales and Murder Seal Pups
If gulls just stole some of your chips while you were out trying to enjoy your lunch, you should feel lucky, because one species has recently developed a taste for live mammal meat!
SciShow
SciShow Quiz Show: Weird Water Creatures & Spontaneous Combustion!
SciShow Quiz Show is back, with familiar faces Hank Green and Caitlin Hofmeister battling it out over questions on water, fire, and computer science!
SciShow
The Truth About Subliminal Messages
Subliminal advertising would be every advertiser’s perfect fantasy and every consumer’s worst nightmare… if it really worked.
TED Talks
TED: How we can find ourselves in data | Giorgia Lupi
Giorgia Lupi uses data to tell human stories, adding nuance to numbers. In this charming talk, she shares how we can bring personality to data, visualizing even the mundane details of our daily lives and transforming the abstract and...
TED Talks
TED: 3 lessons on decision-making from a poker champion | Liv Boeree
Is it better to be lucky or good? Should we trust our gut feelings or rely on probabilities and careful analysis when making important decisions? In this quick talk, professional poker player Liv Boeree shares three strategies she's...
Crash Course
The Roaring 20's Crash Course US History
In which John Green teaches you about the United States in the 1920s. They were known as the roaring 20s, but not because there were lions running around everywhere. In the 1920s, America's economy was booming, and all kinds of social...
Crash Course
Crime: Crash Course Sociology
We’ve talked about deviance more broadly, but today we’re focusing on crime, specifically in the US. We’ll start with legal definitions of crime and use FBI data to get an idea of the amount and kinds of crime committed in the US. We’ll...
PBS
What Does It Mean to Be a Number? (The Peano Axioms)
If you needed to tell someone what numbers are and how they work, without using the notion of number in your answer, could you do it?
TED Talks
TED: Refugees have the right to be protected | António Guterres
António Guterres thinks that we can solve the global refugee crisis -- and he offers compelling, surprising reasons why we must try. In conversation with TED's Bruno Giussani, Guterres discusses the historical causes of the current...
SciShow
Could E.T. Really Find Us? | Compilation
Being the only observable intelligent life in the universe gets lonely sometimes, so it's no wonder we're trying to find something out there to phone home about.
SciShow
The Weird Truth About Arabic Numerals
Hank unravels the fascinating yarn of how the world came to use so-called Arabic numerals -- from the scholarship of ancient Hindu mathematicians, to Muslim scientist Al-Khwarizmi, to the merchants of medieval Italy.
TED Talks
TED: The magic of Fibonacci numbers | Arthur Benjamin
Math is logical, functional and just ... awesome. Mathemagician Arthur Benjamin explores hidden properties of that weird and wonderful set of numbers, the Fibonacci series. (And reminds you that mathematics can be inspiring, too!)
SciShow
How to Make A Humanzee
We all know about inter species animal hybrids - Napoleon Dynamite's favorite animal, the liger, is a typical example. But could a human and our closest primate relative the chimpanzee also breed a living hybrid? Hank explores this ......
TED-Ed
TED-Ed: Can you solve the rogue submarine riddle? Difficulty level: Master | Alex Rosenthal
Smuggling yourself aboard the rogue submarine was the easy part. Hacking into the nuclear missile launch override — a little harder. And you've got a problem: you don't have the override code. You know you need the same numbers that were...
SciShow
Why Physics Can't Totally Explain the Universe's Expansion - SciShow News
Astronomers have gotten pretty good at calculating how fast the universe is expanding, but new measurements don’t line up with the predictions of well-tested laws of physics. Now scientists have a new question to ponder: Why are these...