Instructional Video10:54
Crash Course

The Natives and the English - Crash Course US History

12th - Higher Ed
In which John Green teaches you about relations between the early English colonists and the native people the encountered in the New World. In short, these relations were poor. As soon as they arrived, the English were in conflict with...
Instructional Video15:13
Crash Course

Witchcraft: Crash Course European History

12th - Higher Ed
During our last several episodes, Europe and the European-controlled world have been in crisis. Wars, disease, climate changes, and shifts in religious and political power threw the European world into turmoil. People were looking for a...
Instructional Video10:38
Crash Course

Water and Classical Civilizations: Crash Course World History 222

12th - Higher Ed
In which John Green teaches you about water! So, we talk about resources a lot on Crash Course, and today is no exception. It turns out people can't live without water, which means it's absolutely necessary for civilization. Today John...
Instructional Video10:23
Crash Course

Mineral Extraction: Crash Course Geography

12th - Higher Ed
Today we're going to take a look at mineral extraction -- or the removal of rocks and minerals from the Earths' crust -- and examine how this human activity impacts all aspects of Geography. We'll focus on the Democratic Republic of the...
Instructional Video11:06
Crash Course

Reinforcement Learning

12th - Higher Ed
Reinforcement learning is particularly useful in situations where we want to train AIs to have certain skills we don’t fully understand ourselves. Unlike some of the techniques we’ve discussed so far, reinforcement learning generally...
Instructional Video11:33
Crash Course

Europe in the Global Age: Crash Course European History

12th - Higher Ed
In which John looks at what it even means to live in a global age, as we've been talking about Europe's role in the gobal community for 47 episodes now. But, pedantry aside, the world is more connected than ever, and that has had effects...
Instructional Video10:17
Crash Course

Remembering and Forgetting - Crash Course Psychology

12th - Higher Ed
In this REALLY IMPORTANT EPISODE of Crash Course Psychology, Hank talks about how we remember and forget things, why our memories are fallible, and the dangers that can pose. -- Table of Contents How Memories are Stored 01:12:05...
Instructional Video14:02
Crash Course

World War II Civilians and Soldiers: Crash Course European History

12th - Higher Ed
Our look at World War II continues with a closer examination of just how the war impacted soldiers in the field, and the people at home. For many of the combatants, the homefront and the warfront were one and the same. The war disrupted...
Instructional Video10:33
Crash Course

Aliens, Time Travel, and Dresden -Slaughterhouse-Five Part I: Crash Course Literature 212

12th - Higher Ed
In which John Green teaches you about Kurt Vonnegut's most famous novel, Slaughterhouse-Five. Vonnegut wrote the book in the Vietnam era, and it closely mirrors his personal experiences in World War II, as long as you throw out the time...
Instructional Video13:28
Crash Course

Life Begins: Crash Course Big History

12th - Higher Ed
In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the...
Instructional Video8:42
Crash Course

Nonexistent Objects & Imaginary Worlds: Crash Course Philosophy

12th - Higher Ed
Today we transition between units on language and aesthetics with a discussion of nonexistent and imaginary objects. Is it possible to make true assertions about things that aren’t real? We’ll explore Meinong’s Jungle and the concept of...
Instructional Video7:58
Crash Course

Producers: Crash Course Film Production

12th - Higher Ed
So... what do Producers even do? It's a hard question to answer because there are so many different kinds of producers on a movie. In this episode of Crash Course Film Production, Lily Gladstone talks us through the different kinds of...
Instructional Video12:13
Crash Course

Islam, the Quran, and the Five Pillars All Without a Flamewar Crash Course World History

12th - Higher Ed
In which John Green teaches you the history of Islam, including the revelation of the Qu'ran to Muhammad, the five pillars of Islam, how the Islamic empire got its start, the Rightly Guided Caliphs, and more. Learn about hadiths, Abu...
Instructional Video11:22
Crash Course

Asteroids

12th - Higher Ed
Now that we’ve finished our tour of the planets, we’re headed back to the asteroid belt. Asteroids are chunks of rock, metal, or both that were once part of smallish planets but were destroyed after collisions. Most orbit the Sun between...
Instructional Video12:09
Crash Course

Westward Expansion Crash Course US History

12th - Higher Ed
In which John Green teaches you about the Wild, Wild, West, which as it turns out, wasn't as wild as it seemed in the movies. When we think of the western expansion of the United States in the 19th century, we're conditioned to imagine...
Instructional Video10:39
Crash Course

Hearing & Balance: Crash Course A&P

12th - Higher Ed
Crash Course A&P continues the journey through sensory systems with a look at how your sense of hearing works. We follow sounds as they work there way into the ear where they are registered and transformed into action potentials. This...
Instructional Video13:38
Crash Course

The Congress of Vienna: Crash Course European History

12th - Higher Ed
The end of the Napoleonic Wars left the great powers of Europe shaken. Judging from the destruction that had been wrought across the continent, it seemed to the powers that be that the Enlightenment had liberated the people, and led to...
Instructional Video11:45
Crash Course

Advanced CPU Designs: Crash Course Computer Science

12th - Higher Ed
So now that we’ve built and programmed our very own CPU, we’re going to take a step back and look at how CPU speeds have rapidly increased from just a few cycles per second to gigahertz! Some of that improvement, of course, has come from...
Instructional Video13:02
Crash Course

Black Lives Matter: Crash Course Black American History #51

12th - Higher Ed
In the final episode of Crash Course Black American History, Clint Smith teaches you about the Black Lives Matter movement. We'll discuss some of the major events that contributed to the rise of BLM, including the deaths of Trayvon...
Instructional Video8:12
Crash Course

Where Does Your Mind Reside?: Crash Course Philosophy

12th - Higher Ed
Today we continue our unit on identity by asking where the mind resides. Hank explains the mind body problem and several approaches to the question of where our minds reside, including reductive physicalism, substance dualism, and...
Instructional Video13:22
Crash Course

Dutch Golden Age: Crash Course European History

12th - Higher Ed
While the English were falling apart a little, with their civil war and their restoration and their succession problems, the Dutch were getting their act together. They were throwing off the yoke of the Spanish Empire, uniting their...
Instructional Video12:47
Crash Course

War and Civilization: Crash Course World History 205

12th - Higher Ed
In which John Green investigates war, and what exactly it may or may not be good for. Was war a result of human beings organizing into larger and more complex agricultural social orders, or did war maybe create agriculture and...
Instructional Video9:53
Crash Course

Prejudice & Discrimination: Crash Course Psychology

12th - Higher Ed
In this episode of Crash Course Psychology, Hank tackles some difficult topics dealing with prejudice, stereotyping, and discrimination. There's a lot here, so let's get started. -- Table of Contents: Prejudice, Stereotyping, &...
Instructional Video9:23
Crash Course

Economic Systems the Labor Market Crash Course Sociology

12th - Higher Ed
This week we’ll see how economies can be broken down into the primary, secondary, and tertiary sectors. We’ll look at the three stages of economic revolution that brought us to the modern post-industrial era. We’ll also explore two types...