Crash Course
The Lumiere Brothers: Crash Course Film History
As cinema started to take off, things like "single viewer" devices weren't going to cut it as the medium advanced. In this episode of Crash Course Film History, Craig talks to us about the Lumiere brothers, their invention of the...
Crash Course
Registers and RAM: Crash Course Computer Science
Today we’re going to create memory! Using the basic logic gates we discussed in episode 3 we can build a circuit that stores a single bit of information, and then through some clever scaling (and of course many new levels of abstraction)...
Curated Video
The Agricultural Revolution: Crash Course World History
In which John Green investigates the dawn of human civilization. John looks into how people gave up hunting and gathering to become agriculturalists, and how that change has influenced the world we live in today. Also, there are some...
Crash Course
Aromaticity, Hückel's Rule, and Chemical Equivalence in NMR: Crash Course Organic Chemistry
If you’ve been paying attention so far in this series, you’ve probably heard of benzene. This molecule is flat, cyclic, and belongs to a special class of compounds known as aromatics. In this episode of Crash Course Organic Chemistry,...
Crash Course
100 Years of Solitude Part 2: Crash Course Literature 307
In which we continue our exhaustive look at One Hundred Years of Solitude by Gabriel Garcia Marquez.
Crash Course Kids
Succeed by Failing
We all know that failure is bad... but is it? Actually, Engineers need things to fail so they can understand how to make things better. In this episode of Crash Course Kids, Sabrina chats to us about failure points and how they can help...
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More EAS - Electron Donating and Withdrawing Groups: Crash Course Organic Chemistry
In the previous episode we discussed what happens when we use electrophilic aromatic substitution to add a group to a benzene ring, but what happens when you try to add even more groups? Well, things get a little more complicated. In...
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Monopolies and Anti-Competitive Markets: Crash Course Economics
What is a monopoly? It turns out, it's more than just a board game. It's a terrible, terrible economic practice in which giant corporations dominate markets and hurt consumers. Except when it isn't. In some industries, monopolies are the...
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Barack Obama: Crash Course Black American History #50
Barack Obama was the first Black man elected President in the United States in 2008. In this episode, Clint Smith will explore the early life, political career, presidential campaign, and legislative milestones of Barack Obama.
Crash Course
Low Mass Stars
Today we are talking about the life -- and death -- of stars. Low mass stars live a long time, fusing all their hydrogen into helium over a trillion years. More massive stars like the Sun live shorter lives. They fuse hydrogen into...
Crash Course
Cycles in the Sky
This week we build on our naked eye observations from last week and take a look at the cyclical phenomena that we can see at work in the universe.
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Inflation and Bubbles and Tulips: Crash Course Economics
In which Adriene and Jacob teach you about how and why prices rise. Sometimes prices rise as a result of inflation, which is a pretty normal thing for economies to do. We'll talk about how across the board prices rise over time, and how...
Crash Course
Reversibility & Irreversibility: Crash Course Engineering #8
How do we design the most efficient machines and processes? Today we’ll try to figure that out as we discuss heat & work, reversibility & irreversibility, and how to use efficiency to measure a system.
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Alchemy: History of Science
In fantasy stories, charlatans in fancy robes promise to turn lead into gold. But real alchemists weren’t just mystical misers. They were skilled experimentalists, backed by theories of matter. And they played a huge role in the...
Crash Course
Early Programming: Crash Course Computer Science
Since Joseph Marie Jacquard’s textile loom in 1801, there has been a demonstrated need to give our machines instructions. In the last few episodes, our instructions were already in our computer’s memory, but we need to talk about how...
Crash Course
Partial Pressures & Vapor Pressure: Crash Course Chemistry
This week we continue to spend quality time with gases, more deeply investigating some principles regarding pressure - including John Dalton's Law of Partial Pressures, vapor pressure - and demonstrating the method for collecting gas...
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Naked Eye Observations
Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye.
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Carboxylic Acids: Crash Course Organic Chemistry
What do the smells of feet, armpits, vomit, and goats all have in common? (Besides being super gross…) Carboxylic acids! Despite being responsible for some of our least favorite odors, carboxylic acids are also super useful in organic...
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Big Guns: The Muscular System - CrashCourse Biology
Hank tells us the story of the complicated chemical dance that allows our skeletal muscles to contract and relax.
Crash Course
Exoplanets
Today Phil explains that YES, there are other planets out there and astonomers have a lot of methods for detecting them. Nearly 2000 have been found so far. The most successful method is using transits, where a planet physically passes...
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Taste & Smell: Crash Course A&P
Hank resists the urge to devour a slice of pizza so that he can walk you through the way we experience our major special senses. It all boils down to one thing: sensory cells translating chemical, electromagnetic, and mechanical stimuli...
Crash Course
Entropy: Embrace the Chaos! Crash Course Chemistry
Life is chaos and the universe tends toward disorder. But why? If you think about it, there are only a few ways for things to be arranged in an organized manner, but there are nearly infinite other ways for those same things to be...
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Special Effects: Crash Course Film Production
Chances are, when you hear the phrase "Special Effects," you may have images pop into your mind. The Hulk smashing a city, a lightsaber fight, or maybe an alien world. But effects can be much more subtle and have been around really since...
Crash Course
Hydrocarbon Derivatives - Crash Course Chemistry
Functional groups? Functional groups within functional groups? Hank takes today's Crash Course video to discuss some confusing ideas about Hydrocarbon Derivatives, but then makes it all make more sense.
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Table of Contents
Alcohols...