Crash Course
Organometallic Reagents and Carbanions: Crash Course Organic Chemistry
Have you ever wondered why the gas station has “unleaded fuel” but there isn’t a “leaded” option? The answer has to do with a chemical called tetraethyl lead, which is an organometallic compound, or an organic compound with a...
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American Floods: Crash Course World Mythology
We don't want to deluge you with information on the subject, but this week on Crash Course Mythology, Mike Rugnetta is talking once again about floods. We're looking at ancient flood myths in the Americas, and what they can tell us about...
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School Segregation and Brown v Board: Crash Course Black American History
In 1955, the Supreme Court ruled unanimously that public schools should be racially integrated, and overturned the separate but equal doctrine established in Plessy v Ferguson decades before. This was made possible by a concerted legal...
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Robots: Crash Course Computer Science
Today we're going to talk about robots! Robots are often thought as a technology of the future, but they're already here by the millions in the workplace, our homes, and pretty soon on the roads. We'll discuss the origins of robotics to...
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Home Video: Crash Course Film History
As the New Hollywood gained steam in the late 70s and early 80s, another revenue stream opened its doors: home video. From Betamax to Laserdisc to Bluray to streaming services, home video revolutionized how we ingest movies. In this...
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Monkeys and Morality: Crash Course Psychology
In this episode of Crash Course Psychology, Hank takes a look at a few experiments that helped us understand how we develop as human beings. Things like attachment, separation anxiety, stranger anxiety, and morality are all discussed......
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Anita Hill and Clarence Thomas: Crash Course Black American History #46
Today, Clint will teach you about the Supreme Court confirmation hearing of Clarence Thomas. During the screening process, Anita Hill came forward alleging that Thomas had sexually harassed her when the two of them worked together at the...
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Floods in the Ancient Near East: Crash Course World Mythology
This week on Crash Course mythology, Mike is talking to you about floods. You may have heard the story of Noah and the Ark from the Bible, but that is not the only deluge story humans tell. It's a common thing across culture. You could...
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The First Home Consoles: Crash Course Games
So last week Andre talked about Atari's role in the rise of the video game industry, but Atari wasn't the only major player in the 1970s. So we're going to step back a few years and first talk about Ralph Baer who designed the first...
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Carbon... SO SIMPLE: Crash Course Biology
And thus begins the most revolutionary biology course in history. Come and learn about covalent, ionic, and hydrogen bonds. What about electron orbitals, the octet rule, and what does it all have to do with a mad man named Gilbert Lewis?...
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The Mind/Brain: Crash Course History of Science
Scientists in the nineteenth century discovered a lot about life and matter. But exactly what kind of stuff is the human brain? That one was—and is—tricky. The brain sciences—with experiments and therapies tied to biological theories of...
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Gender, Guilt, and Fate - Macbeth, Part 2: Crash Course Literature 410
This week on Crash Course Literature, John Green is continuing to talk about Shakespeare's dark, bloody, Scottish play, Macbeth. This time around, we're looking at the play's characters operate, how the play deals with gender, and the...
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Brains Vs. Bias: Crash Course Psychology
In this episode of Crash Course Psychology, Hank takes a look at WAIS and WISC intelligence tests and how bias can really skew both results and the usefulness of those results. -- Table of Contents WAIS & WISC Tests 01:09:22...
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Indiana Jones & Pascal's Wager: Crash Course Philosophy
Today we conclude our unit on Philosophy of Religion and Hank gets a little help from Indiana Jones to explain religious pragmatism and Pascal’s Wager, fideism, and Kierkegaard’s leap to faith.
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Exploring the Universe: Crash Course Big History
In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic background radiation, how a bunch of hydrogen and helium turned into stars, formed...
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21st Century Challenges: Crash Course European History
The 21st century brought a whole new host of challenges to the world, and Europe was no exception. In this video you'll learn about how an increasingly connected and complex world led to some pretty deep rifts in countries across the...
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Supervised Learning
Today we’re going to teach John Green Bot how to tell the difference between donuts and bagels using supervised learning! Supervised learning is the process of learning WITH training labels, and is the most widely used kind of learning...
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Eating and Body Dysmorphic Disorders: Crash Course Psychology
In this episode of Crash Course Psychology, Hank walks us through the troubling world of Eating and Body Dysmorphic disorders. There's a lot going on here and, even though we still have a lot of dots to connect, a lot we can learn to...
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Personhood: Crash Course Philosophy
Now that we’ve started talking about identity, today Hank tackles the question of personhood. Philosophers have tried to assess what constitutes personhood with a variety of different criteria, including genetic, cognitive, social,...
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How Does Disease Move? Crash Course Geography
From outbreaks of measles in the United States and cholera in Haiti to patterns of lead poisoning near gold mines in Nigeria, medical geographers play an important role in tracking disease in the landscape. Today, we're going to look at...
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The Big Bang: Crash Course Big History
In which John Green, Hank Green, and Emily Graslie teach you about, well, everything. Big History is the history of everything. We're going to start with the Big Bang, take you right through all of history (recorded and otherwise), and...
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The Bobo Beatdown - Crash Course Psychology
In this episode of Crash Course Psychology, Hank talks about how we learn by observation... and how that can mean beating the tar out of an inanimate clown named Bobo. -- Table of Contents Limitations of Classical and Operant...
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The Economics of Healthcare: Crash Course Econ
Why is health care so expensive? Once again, there are a lot of factors in play. Jacob and Adriene look at the many reasons that health care in the US is so expensive, and what exactly we get for all that money. Spoiler alert: countries...
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How Presidents Govern: Crash Course Government and Politics
This week Craig Benzine talks about how the president gets things done. Filling the role of the executive branch is a pretty big job - much too big for just one person. It's so big that the president employs an entire federal...