What’s the Most “Animal” Animal?: Crash Course Zoology #2

Picture an “animal” in your mind right now. What does it look like? A dog? A lion? Maybe a sloth, pangolin, naked mole rat, or even just a human? There’s a good chance that you imagined a mammal, which is understandable since we are mammals after all, but there is so much more animal life…

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How Do We Investigate Outbreaks? Epidemiology: Crash Course Outbreak Science #8

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 through the discipline of epidemiology. In this episode of Crash Course Outbreak Science, we’ll look at…

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Zora Neale Hurston: Crash Course Black American History #30

The Harlem Renaissance produced many remarkable artists, writers, and thinkers. Today we’ll talk about one of the most interesting minds of the time, Zora Neale Hurston. Hurston was an anthropologist by training and spent much of her career studying and documenting the lives of Black people in the southern US. She later went on to…

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Memory: Crash Course Study Skills #3

An essential part of learning and studying is remembering things, so this week Thomas explains some of how your memory works so that you can spend less time working against your memory’s limitations and more time playing to its real strengths. Resources: How We Make Memories: Crash Course Psychology #13 The Magical Mystery Four: How…

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Supervised Machine Learning: Crash Course Statistics #36

We’ve talked a lot about modeling data and making inferences about it, but today we’re going to look towards the future at how machine learning is being used to build models to predict future outcomes. We’ll discuss three popular types of supervised machine learning models: Logistic Regression, Linear discriminant Analysis (or LDA), and K Nearest…

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Theories of Global Stratification: Crash Course Sociology #28

Today we’ll discuss two theories of global stratification. First, we’ll go over modernization theory and Walt Rostow’s Four Stages of Modernization. Next, we’ll explain dependency theory, the legacy of colonialism, and Immanuel Wallerstein’s Capitalist World Economy Model. CC World History #23: The Columbian Exchange CC World History #33: Capitalism and Socialism CC Sociology course textbook:…

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History of Media Literacy, Part 1: Crash Course Media Literacy #2

In order to understand the history of media literacy, we have to go all the way back to straight-up literacy. In the first half of our look at the history of media literacy, Jay takes us all the way back to Ancient Greece and forward through the printing press, newspapers, and Yellow Journalism. Resources &…

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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 African Americans of the time that produced all kinds of great works in literature,…

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The French Revolution: Crash Course European History #21

In 1789, the French Monarchy’s habit of supporting democratic popular revolutions in North America backfired. Today, we’re talking about the French Revolution. Across the world, people were rising up to throw off monarchies, and Louis didn’t see the writing on the wall until it was too late. Today we’ll talk about how the French Revolution…

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Why We Can’t Invent a Perfect Engine: Crash Course Engineering #10

We’ve introduced the 0th and 1st laws of thermodynamics, so now it’s time to move on to the second law and how we came to understand it. We’ll explain the differences between the first and second laws, and we’ll talk about the Carnot cycle and why we can never design a perfectly efficient engine. Crash…

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The First & Zeroth Laws of Thermodynamics: Crash Course Engineering #9

In today’s episode, we’ll explore thermodynamics and some of the ways it shows up in our daily lives. We’ll learn the zeroth law of thermodynamics, what it means to reach thermal equilibrium, and define the first law of thermodynamics. We’ll also explore how stationary, adiabatic, and isochoric processes can make our lives as engineers a…

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Educational Technology: Crash Course Computer Science #39

Today we’re going to go a little meta and talk about how computer science can support learning with educational technology. We here at Crash Course are big fans of interactive in-class learning and hands-on experiences, but we also believe in the additive power of educational technology inside and outside the classroom from the Internet itself…

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The Future of Artificial Intelligence: Crash Course AI #20

Today, in our final episode of Crash Course AI, we’re going to look toward the future. We’ve spent much of this series explaining how and why we don’t have the Artificial General Intelligence (or AGI) that we see in the movies like Bladerunner, Her, or Ex Machina. Siri frequently doesn’t understand us, we probably shouldn’t…

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ABOUT At Crash Course, we believe that high quality educational videos should be available to everyone for free. The Crash Course team has produced more than 45 courses to date, and these videos accompany high school and college level classes ranging from the humanities to the sciences. Crash Course transforms the traditional textbook model by…

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WELCOME TO Crash Course Crash Course is one of the best ways to educate yourself, your classmates, and your family on YouTube! From courses like Astronomy to US History and Anatomy & Physiology it’s got you covered with an awesome variety of AP high school curriculum topics. With various witty hosts at your service, you…

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