Crash Course
Deficits & Debts: Crash Course Economics
What is debt? What is a deficit? And do these things have different outcomes for individuals and nations? Adriene and Jacob answer all these questions and more on this week's Crash Course Econ. Deficit and debt are easy to misunderstand,...
Crash Course Kids
Space Compilation
Maybe you'd like to just hear about one topic for a while. We understand. Thus, we've created our Compilation Series. In this video, we look at some of our videos about Space. Sabrina talks to us about the Sun, stars, the universe, and...
Crash Course
Like Pale Gold - The Great Gatsby Part I: Crash Course English Literature
In which John Green explores F. Scott Fitzgerald's novel of the Jazz Age, The Great Gatsby. John introduces you to Nick Carraway, Jay Gatsby, Daisy and Tom Buchanan, and the other characters in the novel, and tries to look beyond the...
Crash Course
WWI's Civilians, the Homefront, and an Uneasy Peace: Crash Course European History
World War I was a total war for millions of people in Europe. Many men were enlisted in the fighting, but the war work had implications for the daily lives of a huge number of Europeans. Women entered the workforce in huge numbers, and...
Crash Course
The Nervous System, Part 2 - Action! Potential!: Crash Course A&P
What do you and a sack of batteries have in common? Today, Hank explains. -- Table of Contents: Ion Channels Regulate Electrochemistry to Create Action Potential 4:51 Resting State 3:22 Depolarization 6:09 Repolarization 7:35...
Crash Course Kids
Feed Me: Classifying Organisms
FEED ME! In this episode of Crash Course Kids, Sabrina has a chat with us about what living things eat to get energy. What makes something an omnivore, or a carnivore, or an herbivore? And how do plants fit in to all of this? This first...
Crash Course
Enols and Enolates - Reactivity, Halogenation, and Alkylation: Crash Course Organic Chemistry
You may know that cows produce methane, which is a big concern when it comes to global heating, but did you know that organic chemistry provides a potential solution to this problem? Feeding cows small amounts of red seaweed can greatly...
Crash Course
Perceiving is Believing - Crash Course Psychology
So what does perception even mean? What's the difference between seeing something and making sense of it? In today's episode of Crash Course Psychology, Hank gives us some insight into the differences between sensing and...
Crash Course Kids
Astronaut Experiment
Air resistance! It's a thing! In this episode of Crash Course Kids, Sabrina does her own Astronaut Experiment to show us how we can prove it!
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Data & Infographics: Crash Course Navigating Digital Information #8
Today, we're going to discuss how numbers, like statistics, and visual representations like charts and infographics can be used to help us better understand the world or profoundly deceive. Data is a really powerful form of evidence...
Crash Course
Water and Solutions -- for Dirty Laundry: Crash Course Chemistry
Dihydrogen monoxide (better know as water) is the key to nearly everything. It falls from the sky, makes up 60% of our bodies, and just about every chemical process related to life takes place with it or in it. Without it, none of the...
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Types of Bureaucracies: Crash Course Government and Politics
This week Craig Benzine breaks down the different types of bureaucracies. I mean sure, they’re all part of the executive branch, but some work more directly with the president than others. Some bureaucracies exist solely to independently...
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Florence and the Renaissance: Crash Course European History
The Renaissance was a cultural revitalization that spread across Europe, and had repercussions across the globe, but one smallish city-state in Italy was in many ways the epicenter of the thing. Florence, or as Italians might say,...
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Why Human Ancestry Matters: Crash Course Big History 205
This week, Emily Graslie is teaching you about human ancestry and geneaology, how we got to be the species we are, and why that matters in our zoomed out look at Big History.
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The End of Civilization (In the Bronze Age): Crash Course World History 211
In which John Green teaches you about the Bronze Age civilization in what we today call the middle east, and how the vast, interconnected civilization that encompassed Egypt, The Levant, and Mesopotamia came to an end. What's that you...
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The Transatlantic Slave Trade Crash Course Black American History
Today we're learning about the Transatlantic Slave Trade, which brought millions of captive Africans to the Americas between the 16th and 19th centuries, with the largest number of people trafficked between 1700 and 1808. We'll look at...
Crash Course Kids
Normal Stuff in Not-So-Normal Places
So, what happens to normal stuff (like water) when it goes to not so normal places? What happens if you take a glass of water to the top of Mt. Everest? Or Space? In this episode of Crash Course Kids, Sabrina shows us how matter is...
Crash Course Kids
Weather Channels
Why is my weather app sometimes wrong? Well it has a lot to do with wind. Jet Streams, air cells, the shape and movement of the Earth... there are a lot of things that make weather a little unpredictable. In this episode of Crash Course...
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Presidential Power: Crash Course Government and Politics
This week Craig looks at the expressed powers of the President of the United States - that is the ones you can find in the Constitution. From appointing judges and granting pardons, to vetoing laws and acting as the nation’s chief...
Crash Course
World War II: Black American History
Black Americans have long fought in America's wars, very often fighting for a country that doesn't always fight for them. Today we'll learn about the experience of Black Americans in World War II. We'll look at the ways Black men and...
Crash Course Kids
Down to Earth
In this episode of Crash Course Kids, Sabrina talks about why things on the bottom of the Earth, don't just fall off into space. Plus... PENGUINS! This first series is based on 5th grade science. We're super excited and hope you enjoy...
Crash Course
The Poetry of Sylvia Plath: Crash Course Literature 216
In which John Green teaches you about the poetry of Sylvia Plath. When a lot of people think about Sylvia Plath, they think about her struggles with mental illness and her eventual suicide. Her actual work can get lost in the shuffle a...
Crash Course
Hackers & Cyber Attacks: Crash Course Computer Science
Today we're going to talk about hackers and their strategies for breaking into computer systems. Now, not all hackers are malicious cybercriminals intent on stealing your data (these people are known as Black Hats). There are also White...
Curated Video
Congressional Elections: Crash Course Government and Politics
This week Craig Benzine talks about the importance of elections. But he isn’t going to focus on presidential elections, but instead those of the strongest part of our government: congressional elections. Craig will talk about the...