Crash Course
Black Americans in the Civil War Crash Course Black American History
The American Civil War is one of the deadliest in US History, and let's just get this out of the way: it was about slavery. In the more than 150 years since the end of the Civil War, there have been many attempts to litigate the reasons...
Crash Course
Reader, it's Jane Eyre - Crash Course Literature 207
In which John Green teaches you about Charlotte Bronte's classic coming of age novel, Jane Eyre. Look, we don't like to make judgement values here, but Jane Eyre is awesome. By which we mean the book is great, and the character is...
Crash Course
What's all the Yellen About? Monetary Policy and the Federal Reserve: Crash Course Economics
This week on Crash Course Economics, we're talking about monetary policy. The reality of the world is that the United States (and most of the world's economies) are, to varying degrees, Keynesian. When things go wrong, economically, the...
Crash Course
Political Parties: Crash Course Government and Politics
Today, Craig is going to talk about political parties and their role in American politics. So, when most people think about political parties they associate them with the common ideologies of the voters and representatives within that...
Crash Course
Civil Rights & Liberties: Crash Course Government
Today, Craig is going to give you an overview of civil rights and civil liberties. Often these terms are used interchangeably, but they are actually very different. Our civil liberties, contained in the Bill of Rights, once only...
Crash Course
Introduction to Astronomy
Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?"
Crash Course Kids
Material World
So, we know what materials are, but can we make new materials? Or improve the materials we already have? In this episode of Crash Course Kids, Sabrina shows us how Material Scientists are working on these two things today. Also, your...
Crash Course
Polymers - Crash Course Chemistry
Did you know that Polymers save the lives of Elephants? Well, now you do! The world of Polymers is so amazingly integrated into our daily lives that we sometimes forget how amazing they are. Here, Hank talks about how they were developed...
Crash Course
Unsupervised Learning
Today, we’re moving on from artificial intelligence that needs training labels, called Supervised Learning, to Unsupervised Learning which is learning by finding patterns in the world. We’ll focus on the performing unsupervised...
Crash Course
Pantheons of the Ancient Mediterranean: Crash Course World Mythology
In which Mike Rugnetta begins our unit on pantheons, which are families of gods. We further define pantheons and talk about why they're important. Then, we discuss pantheons from the myths of the ancient Mediterranean, starting with...
Crash Course
Adolescence: Crash Course Psychology
In this episode of Crash Course Psychology, Hank has a look at that oh so troublesome time in everyone's life: Adolescence! He talks about identity, individuality, and The Breakfast Club. -- Table of Contents Erikson's 8 Stages of...
Curated Video
Wait For It...The Mongols!: Crash Course World History
In which John Green teaches you, at long last, about the most exceptional bunch of empire-building nomads in the history of the world, the Mongols! How did the Mongols go from being a relatively small band of herders who occasionally...
Crash Course Kids
The End Is Only The Beginning
It's the end of this first year of Crash Course Kids and we've learned so many things. In this episode, Sabrina takes us on a tour of some of the ideas we've talked about and how they fit into our lives. Also, what all of these ideas...
Crash Course
How Do Outbreaks Start? Pathogens and Immunology - Crash Course Outbreak Science
You may not realize it, but your body is like a fortress, designed to defend you from tiny foreign invaders known as pathogens. This seemingly small world is actually super diverse, and sometimes super dangerous too. That’s why in this...
Crash Course
The Fugitive Slave Act of 1793 Crash Course Black American History
One of the ways that the US Constitution baked the institution of slavery into the very core of the new United States was through the fugitive slave clause. The clause required that people who escaped slavery be returned to their...
Crash Course
The Singularity, Skynet, and the Future of Computing: Crash Course Computer Science
In our SERIES FINALE of Crash Course Computer Science we take a look towards the future! In the past 70 years electronic computing has fundamentally changed how we live our lives, and we believe it’s just getting started. From ubiquitous...
Crash Course
Jupiter
Jupiter is the biggest planet in our solar system. The gas giant is NOT a failed star, but a really successful planet! It has a dynamic atmosphere with belts and zones, as well as an enormous red spot that’s actually a persistent...
Crash Course
Race, Class, and Gender in To Kill a Mockingbird: Crash Course Literature 211
In which John Green teaches you MORE about To Kill a Mockingbird. In this installment, John teaches you about race, class, and gender in the American south, as seen through the eyes of Scout and Harper Lee. John will talk about how Scout...
Crash Course
How To Speak Chemistrian: Crash Course Chemistry
Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native. Table of Contents Determining Formulas...
Crash Course
Langston Hughes & the Harlem Renaissance: Crash Course Literature 215
In which John Green teaches you about the poetry of Langston Hughes. Langston Hughes was a poet and playwright in the first half of the 20th century, and he was involved in the Harlem Renaissance, which was a cultural movement among...
Crash Course
To Sleep, Perchance to Dream - Crash Course Psychology
Why do we sleep? Well... that's a tricky question. More easily answered is the question,"How do we sleep?" In this episode of Crash Course Psychology, Hank discusses some of the ways our brain functions when sleeping and how it can...
Crash Course
Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry
Atoms are a lot like us - we call their relationships "bonds," and there are many different types. Each kind of atomic relationship requires a different type of energy, but they all do best when they settle into the lowest stress...
Crash Course
The Crusades - Pilgrimage or Holy War?: Crash Course World History
In which John Green teaches you about the Crusades embarked upon by European Christians in the 12th and 13th centuries. Our traditional perception of the Crusades as European Colonization thinly veiled in religion isn't quite right. John...
Crash Course
Crash Course Outbreak Science Preview
Welcome to Crash Course Outbreak Science! What do pathogens actually do to us that makes us sick? Why do societies respond to outbreaks of infectious diseases the way they do? How can we stop the next outbreak? These are the kinds of...