Much has been written about what exactly caused World War I. As befits a true global war, the reality is that there isn't a single cause. There aren't even three causes. There are a vast array of causes. Today we'll get into just a few...

Group projects have a reputation of being difficult at times. But there are ways to make sure everything from the project to meetings about the project go smoothly. In this episode, Evelyn chats about how we can make sure and avoid...

In our final episode of Crash Course Sociology we are going to talk about what the health care system in the US looks like, the five A’s of health care accessibility, and a couple of contributing factors to the affordability of health...

So the 1980s was the golden age of arcade games. Games like Donkey Kong, Pac- Man, Space Invaders, and Centipede had become a cultural phenomenon. These games had expanded the gamer demographic and even encouraged the rise of competitive...

If you want to make a movie, generally you're going to want to start with a script. In this episode of Crash Course Film Production, Lily Gladstone talks about the basics of screenplays and how to get started thinking about and actually...

So, we're still talking about sex this week, but we're talking about Earth Mothers and their children. We'll start with Gaia, and her son Kronos, who had a classic childhood rebellion, and castrated his father. We'll also get into...

Today we’re going to build the ticking heart of every computer - the Central Processing Unit or CPU. The CPU’s job is to execute the programs we know and love - you know like GTA V, Slack... and Power Point. To make our CPU we’ll bring...

Today, we're going to take a look at a seemingly cutting-edge technology that has actually been around for decades - virtual reality. Virtual reality devices have been introduced multiple times in the video game era, but they never seem...

In which John Green teaches you about the end of World History, and the end of the world as we know it, kind of. For the last hundred years or so, it seemed that one important ingredient for running an economically successful country was...

In our series finale, we're going to take a look at some of the times we've used statistics to gaze into our crystal ball, and actually got it right! We'll talk about how stores know what we want to buy (which can sometimes be a good...

Today we’re exploring social mobility in some more depth. We’ll look at intergenerational and intragenerational mobility and the difference between absolute and relative mobility. We’ll go over the long run upward social mobility trends...

Feeling motivated? Even if you are, do you know why? The story of Aaron Ralston can tell us a lot about motivation. In this episode of Crash Course Psychology, Hank tells us Ralston's story, as well as 4 theories of motivation and some...

Today we're going to introduce one of the most flexible statistical tools - the General Linear Model (or GLM). GLMs allow us to create many different models to help describe the world - you see them a lot in science, economics, and...

We’ve talked about benzene a bit already in this series, but did you know that benzene rings are present in all kinds of familiar substances? The styrofoam packaging that comes with new appliances, some pharmaceuticals, pesticides, and...

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 law, and we’ll talk about the Carnot...

Our next stop in our tour of the ethical lay of the land is utilitarianism. With a little help from Batman, Hank explains the principle of utility, and the difference between act and rule utilitarianism.

We're going to finish up our discussion of p-values by taking a closer look at how they can get it wrong, and what we can do to minimize those errors. We'll discuss Type 1 (when we think we've detected an effect, but there actually isn't...

Today we’re going to talk about good and bad surveys. From user feedback surveys, telephone polls, and those questionnaires at your doctors office, surveys are everywhere, but with their ease to create and distribute, they're also...

We learn a lot about our surroundings thanks to sound. But... what is it exactly? Sound, that is. What is sound? And how does it travel? And what is this Doppler Effect that we've heard so much about? In this episode of Crash Course...

Engineering helped make this video possible. This week we’ll look at how it’s possible for you to watch this video with the fundamentals of signal processing. We’ll explore things from Morse Code, to problems like bandwidth capacity and...

Today we’ll explore how sociology defines family and the different terms used to describe specific types of family. We’ll look at marriage in different societies, as well as marital residential patterns and patterns of descent. And, of...

What's that smell? Smell's like Organic Chemistry! This week Hank talks about Aromatics and Cyclic Compounds and naming their substituents, resonance as well as common reactions & uses. -- Table of Contents Cyclic Organic Compounds &...

The drafting and adoption of the United States Constitution recalled many of the high ideals of liberty and freedom that were espoused during the Revolutionary War. But the compromises that were made to get all of the new states on board...

Jay continues our journey through the history of media literacy with the arrival of movies, television, and the other screens that now permeate our lives – along with some of the different approaches to media literacy that these...