On today’s episode…CATS. Also: Hank talks about some philosophy stuff, like a few of the key concepts philosophers use when discussing belief and knowledge, such as what defines an assertion and a... Read more »
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse We’ve been asking big questions for a really long time and we’ve all wanted to explore how... Read more »
In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color.... Read more »
What’s the difference between race and ethnicity? Today we’ll look at how definitions of races and ethnicities have changed over time and across places. We also discuss the terms minority and minority-majority... Read more »
In which John Green teaches you about one of the least funny subjects in history: slavery. John investigates when and where slavery originated, how it changed over the centuries, and how Europeans... Read more »
In which John Green teaches you about the roots of the American Revolution. The Revolution did not start on July 4, 1776. The Revolutionary War didn’t start on July 4 either. (as... Read more »
In this episode of Crash Course Chemistry, Hank discusses what molecules actually look like and why, some quantum-mechanical three-dimensional wave functions are explored, he touches on hybridization, and delves into sigma and... Read 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... Read more »
Today Hank gains insight from that most philosophical of figures…Leonardo DiCaprio. In this episode, we’re talking about the process of philosophical discovery and questioning the relationship between appearance and reality by taking... Read more »
In which John Green explores exactly when Rome went from being the Roman Republic to the Roman Empire. Here’s a hint: it had something to do with Julius Caesar, but maybe less... Read more »