As we mentioned last episode, one of the best test spaces for building new AI systems are games. This is because games provide a great framework for an AI to learn an objective and slowly improve. In recent years, AI has made huge...

Hollywood was riding high until their formula got to be stale. In places like Italy and France (as well as other places in the world we'll talk about soon) filmmakers were starting to break out of the mold and make daring films that...

Dr. Shini Somara joins us on the Talk Show today to talk Crash Course Physics and her background in fluid dynamics and television. Then Jessi from Animal Wonders brings on Sydney, their Brush-tailed Bettong.

So... what makes the wind? You might be surprised to learn that it has to do with two of Earth's spheres; The Hydrosphere and the Geosphere. In this episode of Crash Course Kids, Sabrina takes us to the beach to chat about how the wind...

We’ve spent most of this series talking about computers. Which makes sense - this is Crash Course COMPUTER SCIENCE after all. But at their core computers are tools employed by humans and humans are pretty complicated. So today, we’re...

Today, we wrap up our discussion of the console wars by taking a look at Microsoft's Xbox which was announced in 2001. The early 2000s saw a lot of innovation in hardware and games and we'll cover some of that, but one significant change...

This week, we're continuing our discussion of Mark Twain's 'The Adventures of Huckleberry Finn.' This is part two of our talk about Huck Finn, and this time we're looking at the metaphors in the book, a little bit about what the...

There was a lot of bad stuff going on in Europe in the 17th century. We've seen wars, plagues, and unrest of all types. But, there is some good news. Huge advances were underway in the scientific community in Europe at this time. In this...

The Silent Era of Hollywood set a lot of things into motion in terms of how movies were made and sold. Big stars were one of the main ways studios tried to make their movies stand apart from one another and get the public to make choices...

So, today we're talking about African Pantheons. Now, you might say, that's ridiculous. Africa isn't a single place with a single pantheon, and we'd be fools to try and cover all that in an eleven minute video. You'd be right. Instead...

In which you are introduced to the life and accomplishments of Alexander the Great, his empire, his horse Bucephalus, the empires that came after him, and the idea of Greatness. Is greatness a question of accomplishment, of impact, or...

Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system.

From 1932 to 1972, the United States Public Health Service and the Centers for Disease Control and Prevention operated an extremely unethical medical experiment on the effects of outcomes of untreated syphilis. Hundreds of poor Black men...

Russia went and had a revolution in 1917 and cinema was a big part of its aftermath. Even though film stock was hard to come by, we saw the first film school started, and the study of film became hugely important. Russian filmmakers...

Francis Ford Coppola's "Apocalypse Now" is a different kind of war movie. It's a multi-genre film that maybe says more about human psychology than it does about war. In this episode of Crash Course Film Criticism, Michael Aranda takes us...

The Sound! The Fury! Today, we're talking about Shakespeare's Scottish play, Macbeth. So, was Macbeth really predestined to do all the murdering and bad kinging and other terrible stuff? That's the big question in Macbeth, and it's one...

It's Craig's last episode of Film and in it he's going to talk about weird stuff... and real stuff. Experimental and Documentary films could each take up their own Crash Course series. The different styles and intents of different...

Today we’re going to discuss how 3D graphics are created and then rendered for a 2D screen. From polygon count and meshes, to lighting and texturing, there are a lot of considerations in building the 3D objects we see in our movies and...

Today Hank kicks off our look around MISSION CONTROL: your nervous system.


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Sensory Input, Int
egration and Motor Output 1:36
Organization of
Central and Peri
pheral Systems...

Today we’ll cover the fourth and final of our core disciplines of engineering: chemical engineering. We’ll talk about its history and evolution going from soda ash competitions to oil refineries and renewable energies. We’ll also discuss...

Try CuriosityStream todayef='http://curiositystream.com/crashcourse' target='_blank' rel='nofollow'>today and use the promo code "crashcourse" to get the first two months free! Is Citizen Kane the BEST MOVIE EVER MADE? Is that even...

Who takes the pictures in a movie? Who is responsible for making a movie look good, or creating meaning with light and shadow, or make an action scene clear and thrilling? A lot of the time, that's the job of the cinematographer. In this...

In which John Green, Hank Green, and Emily Graslie teach you about our Sun, and the formation of the planets. We're going to focus on the formation and development of the Earth, because that's where people live. You'll learn about the...

Finally, after what seems like eons and eons, the end is nigh. We're talking not only about the end of Crash Course Big History, but also the end of everything. The end of humanity and the end of the universe.John and Hank Green will...