Why do we argue? To out-reason our opponents, prove them wrong, and, most of all, to win! Right? Philosopher Daniel H. Cohen shows how our most common form of argument -- a war in which one person must win and the other must lose --...

It's 1843, and a debate is raging about one of the most common killers of women: childbed fever— no one knows what causes it. One physician has observed patients with inflammation go on to develop childbed fever, and therefore believes...

The idea that our reality is a simulation is not as far-fetched as you may think. Many philosophers, scientists and tech-billionaires are seriously considering not just the possibility but the high probability that our civilization may...

We humans like to think we’re special in basically all ways, but if the history of life is any indication, our species has a limited time on this planet. So the question is: when are we gonna go extinct?

Paul Andersen explains the importance of argumentation in improving both understanding and design. This video begins with a discussion of the heliocentric and geocentric model of the Universe that eventually lead to the Copernican...

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Here's a TED first: an animated Socratic dialog! In a time when irrationality seems to rule both politics and...

You might not be able to completely reverse a person’s stance on any given issue, but you might be able to change their mind a little by presenting your argument in just the right way.

In this video Paul Andersen explains how to have your students engage in argumentation in the science classroom.

Last week we introduced Thomas Aquinas’s four cosmological arguments for the existence of god; today we introduce his fifth argument: the teleological argument, and the ensuing dialogue it initiated.

Today we are introducing a new area of philosophy – philosophy of religion. We are starting this unit off with Anselm’s argument for God’s existence, while also considering objections to that argument.

In which John Green wraps up revolutions month with what is arguably the most revolutionary of modern revolutions, the Industrial Revolution. While very few leaders were beheaded in the course of this one, it changed the lives of more...

In which John Green wraps up revolutions month with what is arguably the most revolutionary of modern revolutions, the Industrial Revolution. While very few leaders were beheaded in the course of this one, it changed the lives of more...

Before we dive into the big questions of philosophy, you need to know how to argue properly. We’ll start with an overview of philosophical reasoning and breakdown of how deductive arguments work (and sometimes don’t work).

We continue our look at philosophical reasoning by introducing two more types: induction and abduction. Hank explains their strengths and weaknesses, as well as counterarguments and the Socratic method.

It's 1954. Vietnamese nationalists are on the verge of securing an independent Vietnam under communist leader Ho Chi Minh. U.S. President Eisenhower claims that by virtue of the "falling domino principle," communist control of Vietnam...

If you think scientists lead boring, monotonous lives, you must not know about Tycho Brahe. The 16th century astronomer who accurately predicted planetary motion led quite a dramatic life -- complete with a kidnapping, a sword duel and...

In business, you need to know how to write. And that involves learning a bunch of things like knowing who you're writing to and what kind of thing you're writing. In this episode of Crash Course Business Soft Skills, Evelyn talks to us...

Artist Raghava KK demos his new children's book for iPad with a fun feature: when you shake it, the story -- and your perspective -- changes. In this charming short talk, he invites all of us to shake up our perspective a little bit.

New ReviewIn this video we are going to work on expanding a logarithmic expression into multiple logarithms. Sometimes the problems can look hard but this one is not that bad.

Many people have to wait too long to see a doctor. And it could get worse. If, as many people believe, we have a shortage of doctors in the United States, then it follows that we can fix this only by training and hiring more physicians.

Let's practice applying reading standards to literary nonfiction! In this video, we explain how to analyze works of historical and political literary nonfiction. The examples used in the video are: the Brown v. Board of Education Supreme...

What is a claim? And what is a counterclaim? This video defines the terms and explores how to craft a strong claim and support it with evidence, using the example of whether or not students should be allowed to play tackle football.

Combine multiple commands using pipes, a powerful feature for executing complex tasks efficiently.

Understand the structure of Linux commands, unlocking the ability to construct commands with confidence and precision.