Can conflict actually bring you and your partner closer? It depends on how you fight, say Julie and John Gottman, the world's leading relationship scientists. They share why the way couples fight can predict the future of their...

Collaboration in the workplace is more important than ever -- but it's making us less productive in some ways. Here's what collaboration pioneer Rob Cross says is driving us to take on way too much -- and how we can reclaim our time and...

Astronomers are the worst at naming things. Dark energy AND dark matter? Who can remember which is which. But perhaps one astronomer has just fixed it, with a theory that says perhaps actually they are they same stuff.

Throughout history, there has been much speculation about what the fate of the universe would be. Many theorized that the universe would eventually succumb to the pull of gravity, and reverse its expansion in what was being called ‘The...

Quick Questions explains why, when it comes right down to it, there are really only eight kinds of people in the world.

You’re probably aware that your blood can be A, B, AB or O, but it turns out that blood types can get a lot more complicated than that! *We made a mistake in the credits of this video: The writer of this episode was Alane Lim.

Microphones keep getting smaller and smaller, but have you ever asked what it would be like to have a bigger one in the form of a shirt? And though we tend to incorrectly think that we’re having two-way conversations with our pets, we...

From A positive to O negative, everyone's born with a blood type, and they're stuck with that blood type for their whole lives... or are they?

Researchers believe you can get reinfected with COVID-19, but we're not quite sure if that's a bad thing yet.

Venomous snakes produce some of the world’s deadliest substances, so they have to be pretty careful about how they use it. But what happens if they accidentally inject themselves with their own harmful cocktail?

There's a downside to the upside, and believe it or not, an upside to the downside. Here's why considering the worst case might lead to better outcomes. Hosted by: Hank Green (he/him)

People can be enthusiastic about their interests, but where does that enthusiasm come from? This compilation explores the psychology behind why humans love the things we love.

Movie magic is more than just what's happening on screen, sometimes the work is all in what's going on inside your brain.

Paul Andersen introduces the concept of bioenergetics. He explains how living organisms utilize free energy in the Universe. He begins with a brief discussion of thermodynamics and Gibbs free energy. He then explains how reactions can...

We've come a long way in our understanding of dark energy. In previous episodes we've looked at how our universe is paradoxically flat and how dark energy is exponentially accelerating the expansion of the universe. Now, let's dive into...

Have you ever panicked before a drug test because you just ate a poppy seed muffin? Check out this episode to see if there’s really something to worry about with poppy seeds.

In this episode of Crash Course Psychology, Hank takes a look at a few experiments that helped us understand how we develop as human beings. Things like attachment, separation anxiety, stranger anxiety, and morality are all...

The cross product is a way to multiple to vectors in 3d. This video shows how to visualize what it means.

An overview of what a neural network is, introduced in the context of recognizing hand-written digits.

How one of the introductory ideas in a field called "measure theory" can be thought of in terms of musical harnomy and dissonance.

The cross product is a way to multiple to vectors in 3d. This video shows how to visualize what it means.

While feedback loops are a bummer at band practice, they are essential in nature. What does nature's feedback look like, and how does it build the resilience of our world? Anje-Margriet Neutel describes some common positive and negative...

Negative campaigns—or campaigns that work by painting opposing candidates in a negative light—have been used for decades. But today, thanks to information that can be gained from social media, these campaigns may be even more effective...

Author Robert Wright explains "non-zero-sumness" -- the network of linked fortunes and cooperation that has guided our evolution to this point -- and how we can use it to help save humanity today.