Crash Course
Fluids at Rest: Crash Course Physics
In this episode of Crash Course Physics, Shini is very excited to start talking about Fluids. You see, she's a Fluid Dynamicist and Mechanical Engineer, so fluids are really important to her. Actually they're really important to anyone...
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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.
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Where US Politics Came From Crash Course US History
In which John Green teaches you where American politicians come from. In the beginning, soon after the US constitution was adopted, politics were pretty non-existent. George Washington was elected president with no opposition, everything...
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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...
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ANOVA - Crash Course Statistics
Today we're going to continue our discussion of statistical models by showing how we can find if there are differences between multiple groups using a collection of models called ANOVA. ANOVA, which stands for Analysis of Variance is...
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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...
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Statics: Crash Course Physics
The Physics we're talking about today has saved your life! Whenever you walk across a bridge or lean on a building, Statics are at work. Statics is the study of objects when they're NOT accelerating. In this episode of Crash Course...
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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...
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Stoichiometry: Chemistry for Massive Creatures - Crash Course Chemistry
Chemists need stoichiometry to make the scale of chemistry more understandable - Hank is here to explain why, and to teach us how to use it. Table of Contents Atomic Mass Units 2:24 Moles 5:12 Molar Mass 5:59 Equation Balancing 8:45...
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Light
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. Spectroscopy allows us to analyze those colors and determine an object’s...
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Cybersecurity: Crash Course Computer Science
Cybersecurity is a set of techniques to protect the secrecy, integrity, and availability of computer systems and data against threats. In today’s episode, we’re going to unpack these three goals and talk through some strategies we use...
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The World Wide Web: Crash Course Computer Science
Today we’re going to discuss the World Wide Web - not to be confused with the Internet, which is the underlying plumbing for the web as well as other networks. The World Wide Web is built on the foundation of simply linking pages to...
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Discrimination: Crash Course Philosophy
Is it OK to discriminate? Do you do it? Is it always wrong or are there cases where it can be acceptable? Today we’re talking through several tricky cases and different philosophical perspectives on this issue.
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The Rise of Conservatism Crash Course US History
In which John Green teaches you about the rise of the conservative movement in United States politics. So, the sixties are often remembered for the liberal changes that the decade brought to America, but lest you forget, Richard Nixon...
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Family Obligations: Crash Course Philosophy
Today we are investigating our moral obligations to our parents and our families. Do we owe our parents anything as adults? Would it be a good idea to license parents? We’ll explore these questions as well as the ethics of care, and some...
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How Do We Produce Food? Crash Course Geography
Over the millennia, every region on Earth has developed its own successful agricultural ecosystem from flat fields of grain and mountainside rice terraces to coastal fish farms and goat herding. Today, we’re going to break down...
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The Constitution, the Articles, and Federalism Crash Course US History
In which John Green teaches you about the United States Constitution. During and after the American Revolutionary War, the government of the new country operated under the Articles of Confederation. While these Articles got the young...
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More EAS & Benzylic Reactions: Crash Course Organic Chemistry
We’ve already learned a lot about electrophilic aromatic substitution (EAS) and benzene, but guess what? There’s even more to learn! In this episode of Crash Course Organic Chemistry we’ll revisit our old friends the Friedel-Crafts...
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Digestive System, part 2: Crash Course A&P
Nearly 200 years ago, Alexis St. Martin was shot in the stomach. He was saved by local army doctor William Beaumont, but had to live out his remaining years with a gaping hole in the stomach -- allowing Beaumont to learn a lot about how...