Crash Course
Aldehyde and Ketone Reactions - Hydrates, Acetals, & Imines: Crash Course Organic Chemistry
We’ve already learned the basics of carbonyl chemistry and talked about how we can synthesize aldehydes and ketones, but there’s still so much more to learn, like the role carbonyl groups play in reactions involving sedatives! In this...
Crash Course Kids
Water Fix!
How can we fix water shortages? Well, we know that shortages are a problem and can cause fighting because water is a resource. When you limit a resource, things get scary. But, in this episode of Crash Course Kids, Sabrina talks about...
Crash Course
Nintendo and a New Standard for Video Games: Crash Course Games
So we ended the last episode at the North American Video Game Crash of 1983, and even though the video game market had collapsed in the United States, demand for video games remained strong in Europe and Asia. Nintendo of Japan,...
Crash Course
Chordates - CrashCourse Biology
Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal...
Crash Course
Marsha P. Johnson and the Stonewall Rebellion: Crash Course Black American History #41
Today we’re learning about Marsha P. Johnson and the Stonewall rebellion. Serving as a pivotal moment in the modern Gay Rights Movement, Stonewall began on June 28th, 1969, and lasted six days in New York City’s Greenwich Village. And...
Crash Course
Colonialism: Crash Course Geography
Empire, imperialism, and colonialism are all interrelated tactics of geopolitics that are used to achieve similar goals of one state maintaining economic, political, or even cultural dominance over other territories. Today, we’re going...
Crash Course
Tyranny of the Map: Crash Course Geography
Today we’re going to talk about borders. Borders can bring people together, evoke passion and war, divide, conquer, and solidify power. We’re going to focus on the tyranny of the map which is what happens when those in power draw...
Crash Course
How Do We Investigate Outbreaks? Epidemiology Crash Course Outbreak Science
At the heart of outbreaks are people! People are the ones who get sick, transmit diseases, and change the way they live in response to outbreaks. In outbreak science, we can better understand the relationship between people and disease...
Crash Course
Catholic Counter-Reformation: Crash Course European History
When the Protestant Reformation broke out in Western Europe, the Catholic Church got the message, at least a little bit. Pope Paul III called a council to look into reforming some aspects of the Catholic Church and try to stem the tide...
Crash Course
Federalism: Crash Course Government and Politics
In which Craig Benzine teaches you about federalism, or the idea that in the United States, power is divided between the national government and the 50 state governments. Craig will teach you about how federalism has evolved over the...
Crash Course
Television Production: Crash Course Film Production
In our final episode of Crash Course Film Production, it's time to take a look at television production and how it differs from feature film production. It's subtle but it has a lot to do with how television shows make money for their...
Crash Course
The Editor: Crash Course Film Production
The Editor is yet another unsung hero in the filmmaking process. For a century of film history, Editors have taken raw footage and worked to transform it into a cohesive whole. Basically making one thing from many. But, how do they do...
Crash Course
Ford, Cars, and a New Revolution: Crash Course History of Science
Historians love to debate each other. So some of them pointed out that the first half of this revolution looks a lot different from the second. Let's chat about industry, cars, and Henry Ford.
Crash Course
Files & File Systems: Crash Course Computer Science
Today we’re going to look at how our computers read and interpret computer files. We’ll talk about how some popular file formats like txt, wave, and bitmap are encoded and decoded giving us pretty pictures and lifelike recordings from...
Crash Course
Capitalism and the Dutch East India Company: Crash Course World History 229
In which John Green teaches you about the Vereenigde Oostindische Compagnie, doing business as the VOC, also known as the Dutch East India Company. In the 16th and 17th centuries, the Dutch managed to dominate world trade, and they did...
Crash Course
To the Lighthouse: Crash Course Literature 408
John Green teaches you about Virginia Woolf's modernist novel, To the Lighthouse. Let's face it. You're not reading To the Lighthouse for the plot. There's not a whole lot of plot, unless you count the tension about the beef stew. You're...
Crash Course
Network Solids and Carbon: Crash Course Chemistry
In this episode, Hank talks about Network solids and Carbon and how you can actually create a Diamond from plain old Carbon... well, YOU probably can't unless you own a bunch of elephants. It's a long story. BUT, within you will learn...
Crash Course
Magnetism: Crash Course Physics
You’re probably familiar with the basics of magnets already: They have a north pole and a south pole. Two of the same pole will repel each other, while opposites attract. Only certain materials, especially those that contain iron, can be...
Crash Course
Population, Sustainability, and Malthus: Crash Course World History 215
In which John Green teaches you about population. So, how many people can reasonably live on the Earth? Thomas Malthus got it totally wrong in the 19th century, but for some reason, he keeps coming up when we talk about population. In...
Crash Course
Web Search
Today we’re going to talk about search engines, which are just AI systems that try to help us find what we’re looking for. Search engines can be the sort that serve up a list of results, like during a Google or Bing search, using web...
Crash Course Kids
Seasons and the Sun
Ever wonder why we have seasons? A lot of people think it's because the Earth gets further away from the sun in winter, and closer in the summer. But, it's actually more interesting than that. In this episode of Crash Course Kids,...
Crash Course
Intro to Algorithms: Crash Course Computer Science
Algorithms are the sets of steps necessary to complete computation - they are at the heart of what our devices actually do. And this isn’t a new concept. Since the development of math itself algorithms have been needed to help us...
Crash Course Kids
The Basics of Freshwater
We have a lot of water on Earth, but we also can't actually drink much of it... or use it for farming. That's because most of the water on Earth is saltwater. We humans, like a lot of living things, need freshwater to survive. In this...
Crash Course
Plato and Aristotle: Crash Course History of Science
Plato and Aristotle: Crash Course History of Science #3