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
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...
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...
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 ......
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...
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...
Crash Course
Gambling: Crash Course Games
Today we're going to talk about gambling. Now, gambling is interesting because it could be argued that gambling doesn't even have anything to do with games. It's usually about making money after all - which makes it much closer to work....
SciShow
The Randomness Problem: How Lava Lamps Protect the Internet
Randomness is important for all kinds of things, from science to security, but to generate true randomness, engineers have turned to some pretty odd tricks!
Curated Video
Mathematical Thinking - Crash Course Statistics
Today we’re going to talk about numeracy - that is understanding numbers. From really really big numbers to really small numbers, it's difficult to comprehend information at this scale, but these are often the types of numbers we see...
SciShow
What Does a 95% Effective Vaccine Really Mean?
If you've received a vaccine that's 95% effective, that does not mean you have a 5% chance of getting sick. That’s just not how the numbers are calculated. So let’s take a closer look at how it does work, why we can’t compare these...
TED Talks
TED: Meet e-Patient Dave | Dave deBronkart
When Dave deBronkart learned he had a rare and terminal cancer, he turned to a group of fellow patients online -- and found the medical treatment that saved his life. Now he calls on all patients to talk with one another, know their own...
Be Smart
How to Figure Out the Day of the Week For Any Date Ever
You might think that computers are the only things that run algorithms, but you're wrong. Here's a neat mental trick for calculating the day of the week for any day ever, developed by famous mathematician John H. Conway.
3Blue1Brown
Why do prime numbers make these spirals?
A curious pattern in polar plots with prime numbers, together with discussion of Dirichlet's theorem
MinutePhysics
Higgs Boson Part III - How to Discover a Particle
How do you know when you've "discovered" a particle? What do we mean by "discovery"?
Crash Course
Degrees of Freedom and Effect Sizes - Crash Course Statistics
Today we're going to talk about degrees of freedom - which are the number of independent pieces of information that make up our models. More degrees of freedom typically mean more concrete results. But something that is statistically...