Search Results: "compression crash computer science 21"

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04:28 Popular
Life On Other Planets: Crash Course Kids #45.1

1,046 views / 0 likes - added 8 years ago

Have you ever wondered if there is anyone (or anything) else out there in the universe? Well, you're not alone. But what would alien life look like? And what would their food chains and food webs look like? In this episode of Crash Course Kids, Sabrina gi
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12:22
Creation from the Void: Crash Course Mythology #2

656 views / 0 likes - added 7 years ago

Today on Crash Course Mythology we’re starting in on creation stories. This week, we’ll focus on the creation of the universe out of nothing, or Ex Nihlio creation. Basically, a god decides to make a universe out of nothing. We’ll look a
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Let's Fly!: Crash Course Kids 26.2

875 views / 1 likes - added 8 years ago

Selecting which solution is the best solution to a problem may seem difficult at first. But if you are patient and think about what you need an effective solution to be, you can do it. In this episode of Crash Course Kids, Sabrina shows us how to do just
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03:33 Popular
Land And Water: Crash Course Kids #16.1

1,240 views / 2 likes - added 8 years ago

Remember Sol, the closest star to Earth? We like to call it The Sun and we haven't talked about it in a little while. One interesting thing about the energy we get from the sun is that it's not absorbed the same way by different materials. In fact, even a
10:08 Popular
Social Influence: Crash Course Psychology #38

781 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
11:34 Popular
Marginal Analysis, Roller Coasters, Elasticity, And Van Gogh: Crash Course Econ #18

1,110 views / 0 likes - added 8 years ago

This week Jacob and Adriene teach you about marginal analysis, which you're using RIGHT NOW! The video is coming from inside the house! Or something. You'll learn how marginal analysis guides the decision making if cities, nations, companies, and amusemen
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Test Anxiety: Crash Course Study Skills #8

614 views / 0 likes - added 6 years ago

Exams can be terrifying. It’s easy to feel like the weight of the world rests in these moments – like this one test determines your grades and, in turn, your whole future – even if you know, rationally, that this isn’t really the case. What’s worse is tha
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Metaethics: Crash Course Philosophy #32

914 views / 0 likes - added 7 years ago

We begin our unit on ethics with a look at metaethics. Hank explains three forms of moral realism – moral absolutism, and cultural relativism, including the difference between descriptive and normative cultural relativism – and moral subjectivism, which i
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How To Become An Engineer: Crash Course Engineering #45

355 views / 0 likes - added 4 years ago

Hopefully this course has gotten you excited about all the things we can do with engineering. If so, today were going to try to help you answer a very important question: how do you become an engineer? What are the steps? What kinds of careers can you pur
Fixing Failure Points: Crash Course Kids #42.2

172 views / 0 likes - added 2 years ago

Now that we've talked about failure points, let's talk about how to fix them. In this episode of Crash Course Kids, Sabrina shows us how to set up models and trails to find and fix failure points. ///Standards Used in This Video///3-5-ETS1-3. Plan and car
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Uniform Circular Motion: Crash Course Physics #7

1,349 views / 0 likes - added 8 years ago

Did you know that centrifugal force isn't really a thing? I mean, it's a thing, it's just not real. In fact, physicists call it a "Fictitious Force." Mind blown yet? To explore this idea further, this week Shini sits down with us to discuss centripetal fo
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Macroeconomics: Crash Course Economics #5

1,073 views / 0 likes - added 8 years ago

This week, Adriene and Jacob teach you about macroeconomics. This is the stuff of big picture economics, and the major movers in the economy. Like taxes and monetary policy and inflation and policy. We need this stuff, because if you don't have a big pict
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Planetary Plants: Crash Course Kids #45.2

999 views / 0 likes - added 8 years ago

So we know what life needs here to work, and we've talked a little about what life COULD look like on other planets. But what about plant life? What could plant life look like on other planets? In this episode of Crash Course Kids, Sabrina chats to us jus
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10:38 Popular
5 Human Impacts On The Environment: Crash Course Ecology #10

1,586 views / 1 likes - added 8 years ago

Hank gives the run down on the top five ways humans are negatively impacting the environment and having detrimental effects on the valuable ecosystem services which a healthy biosphere provides. Like Crash Course? http://www.facebook.com/YouTubeCrashCours
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Earth's Rotation & Revolution: Crash Course Kids 8.1

1,531 views / 1 likes - added 9 years ago

So, have you ever wondered why we have seasons? Or maybe where the sun goes when it's night time? *Hint: It doesn't actually go anywhere* In this episode of Crash Course Kids, Sabrina talks about the Earth's rotation and revolution and how these things co
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How Not to Set Your Pizza on Fire: Crash Course Engineering #15

315 views / 0 likes - added 4 years ago

Today were going to explain how exchangers...exchange heat. Well look at concentric tubes, finned tubes, plate heat exchangers, and shell-and-tube heat exchangers. And well look at some equations to help us sort through heat transfer and decide what heat
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Specialization And Trade: Crash Course Economics #2

3,173 views / 1 likes - added 8 years ago

In which Adriene Hill and Jacob Clifford teach you about specialization and trade, and how countries decide whether they're going to make stuff or trade for stuff. You'll learn about things like comparative advantage, the production possibilities frontier
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Social Groups: Crash Course Sociology #16

695 views / 1 likes - added 6 years ago

How do the groups that you're part of affect you? How do you, in turn, affect those groups? Today we are talking about how people in society come together with a look at social groups. We’ll look at what social groups are, the different kinds of groups th
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Experimental and Documentary Films: Crash Course Film History #16

549 views / 1 likes - added 6 years ago

It's Craig's last episode of Film and in it he's going to talk about weird stuff... and real stuff. Experimental and Documentary films could each take up their own Crash Course series. The different styles and intents of different filmmakers make each fil
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Social Thinking: Crash Course Psychology #37

723 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
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Aristotle & Virtue Theory: Crash Course Philosophy #38

1,041 views / 0 likes - added 7 years ago

This week we explore final ethical theory in this unit: Aristotle’s virtue theory. Hank explains the Golden Mean, and how it exists as the midpoint between vices of excess and deficiency. We’ll also discuss moral exemplars, and introduce the concept of “e
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Psychology of Gaming: Crash Course Games #16

607 views / 1 likes - added 7 years ago

So we’ve talked a lot about what makes games so great in this series, but we haven’t really addressed the big question: why do we play games anyway? And well, the answer is pretty complicated, especially when you consider that some people really like card
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Try Trials: Crash Course Kids #39.2

896 views / 0 likes - added 8 years ago

We've talked about variables and solving problems. But how do we keep working on a problem if the first solution doesn't fix it? Trials! In this episode of Crash Course Kids, Sabrina shows us how to use Trials to figure out what the problems are with our
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Eating and Body Dysmorphic Disorders: Crash Course Psychology #33

747 views / 0 likes - added 9 years ago

Get Help: If you think you have an eating disorder, please contact http://www.nationaleatingdisorders.org/ for help! You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we'r
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Game Design: Crash Course Games #19

778 views / 0 likes - added 7 years ago

Good game design is essential for a positive player experience whether it’s a board games, video game, or even dice game. So today, we’re going to take some time to give you an introductory overview of the process of creating a game, and talk about some o
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Hearing & Balance: Crash Course A&P #17

1,241 views / 0 likes - added 9 years ago

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 mechanism not only h
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11:18 Popular
The Vikings! - Crash Course World History 224

1,311 views / 5 likes - added 9 years ago

In which John Green teaches you about Vikings! That's right, one of our most requested subjects, the Vikings, right here on Crash Course. So what's the deal with Vikings? Well, the stuff you've heard about them may not be true. The Vikings weren't just pa
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Compatibilism: Crash Course Philosophy #25

777 views / 0 likes - added 7 years ago

As we continue explore free will, today Hank considers a middle ground between hard determinism and libertarian free will: compatibilism. This view seeks to find ways that our internally motivated actions can be understood as free in a deterministic world
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Immune System, Part 2: Crash Course A&P #46

1,051 views / 0 likes - added 8 years ago

In the penultimate episode of Crash Course Anatomy & Physiology, Hank explains your adaptive immune system. The adaptive immune system's humoral response guards extracellular terrain against pathogens. Hank also explains B cells, antibodies, and how vacci
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Monopolies And Anti-Competitive Markets: Crash Course Economics #25

1,219 views / 0 likes - added 8 years ago

What is a monopoly? It turns out, it's more than just a board game. It's a terrible, terrible economic practice in which giant corporations dominate markets and hurt consumers. Except when it isn't. In some industries, monopolies are the most efficient wa
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What Is Justice?: Crash Course Philosophy #40

916 views / 0 likes - added 7 years ago

In today’s episode, Hank asks you to consider all the ways people talk about justice and what we really mean when we use that word. We’ll explain various theories of justice, just distribution, and different approaches to punishment. Want more Crash Cours
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Aggression V. Altruism: Crash Course Psychology #40

691 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
09:50 Popular
The Growth of Knowledge: Crash Course Psychology #18

1,044 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
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Economic Schools Of Thought: Crash Course Economics #14

970 views / 0 likes - added 8 years ago

We talk a lot about Keynesian economics on this show, pretty much because the real world currently runs on Keynesian principles. That said, there are some other economic ideas out there, and today we're going to talk about a few of them. So, if you've bee
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Succeed By Failing: Crash Course Kids #42.1

876 views / 0 likes - added 8 years ago

We all know that failure is bad... but is it? Actually, Engineers need things to fail so they can understand how to make things better. In this episode of Crash Course Kids, Sabrina chats to us about failure points and how they can help us find better sol
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09:37 Popular
Immune System, Part 3: Crash Course A&P #47

869 views / 0 likes - added 8 years ago

THE FINAL SHOWDOWN! This is the last episode on the immune system and also the very last episode of Crash Course Anatomy & Physiology. In it, Hank explains how the cellular immune response uses helper, cytotoxic, and regulatory T cells to attack body cell
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Sympathetic Nervous System: Crash Course A&P #14

705 views / 0 likes - added 9 years ago

Hank tries not to stress you out too much as he delves into the functions and terminology of your sympathetic nervous system. -- Table of Contents Sympathetic Nervous System Controls the Body's Stress Response 0:26 How Signals Travel to Effectors 1:48 Ace
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The Global Carbon Cycle - Crash Course Chemistry #46

1,711 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
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09:44 Popular
Arguments Against Personal Identity: Crash Course Philosophy #20

775 views / 0 likes - added 7 years ago

How can Daenerys Targaryen help us understand personal identity? Find out as Hank continues our exploration of personal identity, learning about Hume’s bundle theory and Parfit’s theory of survival through psychological connectedness. Get your own Crash C
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The Nervous System, Part 2 - Action! Potential!: Crash Course A&P #9

1,156 views / 0 likes - added 9 years ago

•••SUBBABLE MESSAGE••• TO: Carla FROM: Christopher Next stop is whenever. Just be like, "stop." *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if
10:58 Popular
Personality Disorders: Crash Course Psychology #34

890 views / 1 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
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Migration: Crash Course European History #29

399 views / 0 likes - added 4 years ago

Between 1840 and 1914, an estimated 40 million people left Europe. This is one of the most significant migrations in human history. So, who was leaving Europe? And why? Crash Course is on Patreon! You can support us directly by signing up at http://www.pa
03:31
Armed with tough computer chips, it's time to return to Venus

466 views / 0 likes - added 6 years ago

New research suggests that silicon carbide transistors could let landers survive for months rather than hours in the immense pressure and heat of Venus' surface. Learn more - http://scim.ag/2jbBpIj
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The ancient 'computer' that simply shouldn't exist - BBC REEL

410 views / 0 likes - added 2 years ago

A hundred and twenty years ago, divers discovered a shipwreck off the island of Antikythera in Greece. What they found changed our understanding of human history. The mysterious Antikythera Mechanism has captured the imagination of archaeologists, mathema
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Reading Assignments: Crash Course Study Skills #2

525 views / 0 likes - added 6 years ago

Leaving the bookstore at the beginning of the semester you’re probably wondering how the heck you’re going to get through all of that reading. Today we’re explaining how much of that reading you really need to do and the best strategies for making your wa
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The Robot Challenge: Crash Course Kids #47.1

726 views / 0 likes - added 8 years ago

Robots! They're everywhere. We use them for all kinds of things that we can't, or don't want to do. In this episode of Crash Course Kids, Sabrina shares a problem with us that can probably be solved by building an awesome robot. So let's take the robot ch
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Input Devices: Crash Course Games #24

479 views / 0 likes - added 7 years ago

Today we’re going to talk about controllers. Controllers are incredibly important in the gaming experience because they are how we communicate actions within a game and often play a significant role in why we like or dislike certain games. And over the ye
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Movies are Magic: Crash Course Film History #1

749 views / 0 likes - added 7 years ago

Well, they're not really "magic." Maybe "illusion" is a better way to say it. As we begin this journey of the history of cinema, we need to understand how movies trick our brains into even understanding that a movie is a movie. In this episode of Crash Co
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International IP Law: Crash Course Intellectual Property #6

750 views / 0 likes - added 9 years ago

This week, Stan Muller teaches you how intellectual property law functions internationally. Like, between countries. Well, guess what. There's kind of no such thing as international law. But we can talk about treaties. There are a bevy of international tr
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Steven Universe | Steven's Pet is a Pink Lion | The Cartoon Network Show Ep. 21

163 views / 0 likes - added 2 years ago

What pet do you have or want to have?---Subscribe for more Cartoon Network fun!https://www.youtube.com/channel/UCW5xCqirsmdKqYWYMj-pVUwCheck out our Cartoon Network Facebook page:https://www.facebook.com/CartoonNetworkAUNZ#CartoonNetwork
10:16 Popular
World Cinema - Part 1: Crash Course Film History #14

736 views / 0 likes - added 6 years ago

The world is a big place and cinema isn't limited to just the U.S. and Europe. There are a lot of vibrant and influential film movements and cultures from all over the world. In this episode of Crash Course Film History, Craig talks to us a little about s
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Space Compilation: Crash Course Kids

1,009 views / 0 likes - added 8 years ago

Maybe you'd like to just hear about one topic for a while. We understand. Thus, we've created our Compilation Series. In this video, we look at some of our videos about Space. Sabrina talks to us about the Sun, stars, the universe, and how constellations
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How to Train a Brain - Crash Course Psychology #11

1,125 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
10:15 Popular
Price Controls, Subsidies, And The Risks Of Good Intentions: Crash Course Economics #20

809 views / 0 likes - added 8 years ago

So, during times of inflation or deflation, why doesn't the government just set prices? It sounds reasonable, but price ceilings or floors just don't work. Adriene and Jacob explain why. Subsidies, however, are a little different, and sometimes they even
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The Raft, The River, And The Weird Ending Of Huckleberry Finn: Crash Course Literature 303

567 views / 0 likes - added 7 years ago

This week, we're continuing our discussion of Mark Twain's 'The Adventures of Huckleberry Finn.' This is part two of our talk about Huck Finn, and this time we're looking at the metaphors in the book, a little bit about what the metaphors like the Island
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The Dirt On Decomposers: Crash Course Kids #7.2

2,203 views / 3 likes - added 9 years ago

We've talked about food chains and how energy moves through an ecosystem, but let's take a step back and see how everything starts... and ends. Decomposers! This first series is based on 5th grade science. We're super excited and hope you enjoy Crash Cour
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The Silent Era: Crash Course Film History #9

632 views / 0 likes - added 6 years ago

The Silent Era of Hollywood set a lot of things into motion in terms of how movies were made and sold. Big stars were one of the main ways studios tried to make their movies stand apart from one another and get the public to make choices at the cinema. Bu
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Derivatives: Crash Course Physics #2

1,122 views / 0 likes - added 8 years ago

CALCULUS! Today we take our first steps into the language of Physics; mathematics. Every branch of science has its own way to describe the things that it investigates. And, with Physics, that's math. In this episode, Shini talks us through derivatives and
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Citizen Kane: Crash Course Film Criticism #1

568 views / 0 likes - added 6 years ago

Try CuriosityStream today: http://curiositystream.com/crashcourse and use the promo code "crashcourse" to get the first two months free! Is Citizen Kane the BEST MOVIE EVER MADE? Is that even an answerable question? Michael Aranda will try to help us thro
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How YouTube knows what you should watch: Crash Course AI #15

455 views / 0 likes - added 4 years ago

Subscribe to Sound Field! https://www.youtube.com/channel/UCvMLMyKPomE6kTTL9Kv8Iww Today were going to talk about recommender systems which form the backbone of so much of the content we see online from video recommendations on YouTube and Netflix to ads
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Robotics: Crash Course AI #11

345 views / 0 likes - added 4 years ago

Robots arent like humans who can do a lot of different things. Theyre designed for very specific tasks like vacuuming our homes, assembling cars in a factory, or exploring the surface of other planets. So even though it may be a while before we have a gen
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Aliens: Crash Course Film Criticism

667 views / 0 likes - added 6 years ago

James Cameron rocketed onto the action film scene with 1984's "The Terminator" and followed that up with a highly anticipated sequel to the 1979 film, "Alien." His film, "Aliens," would go on to not only be a financial success, but a critical one and has
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Architecture Adventure: Crash Course Kids #47.2

1,017 views / 3 likes - added 8 years ago

If we want to build a place for us to live, or to hang out, or do eat dinner with our friends, we're going to need a special kind of engineering called architecture. In this episode of Crash Course Kids, Sabrina gets us to help her build a place where she
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09:25 Popular
What's All The Yellen About? Monetary Policy And The Federal Reserve: Crash Course Economics #10

763 views / 0 likes - added 8 years ago

This week on Crash Course Economics, we're talking about monetary policy. The reality of the world is that the United States (and most of the world's economies) are, to varying degrees, Keynesian. When things go wrong, economically, the central bank of th
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Astronaut Experiment: Crash Course Kids #32.2

727 views / 2 likes - added 8 years ago

Air resistance! It's a thing! In this episode of Crash Course Kids, Sabrina does her own Astronaut Experiment to show us how we can prove it! Watch More Crash Course Kids: https://www.youtube.com/user/crashcoursekids ///Standards Used in This Video/// 5-P
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Batman & Identity: Crash Course Philosophy #18

951 views / 1 likes - added 7 years ago

Hank explores different ways of understanding identity – including the Indiscernibility of Identicals, and essential and accidental properties. In what ways does affect identity? In what ways does it not? What does it mean for a thing to persist over time
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What Is Myth? Crash Course Mythology #1

981 views / 4 likes - added 7 years ago

Welcome to Crash Course World Mythology, our latest adventure (and this series may be literally adventurous) in education. Over the next 40 episodes or so, we and Mike Rugnetta are going to learn about the world by looking at the foundational stories of a
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Ecology - Rules for Living on Earth: Crash Course Biology #40

2,269 views / 0 likes - added 9 years ago

Hank introduces us to ecology - the study of the rules of engagement for all of us earthlings - which seeks to explain why the world looks and acts the way it does. The world is crammed with things, both animate and not, that have been interacting with ea
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04:44 Popular
Testing And Trials: Crash Course Kids #44.2

872 views / 1 likes - added 8 years ago

More trials! This time we need to figure out what to do if you don't have all the things you'd like to have to perform your tests. How do you isolate a variable across multiple tests? A good engineer will work to find a way to make it happen. In this epis
Gas Giants Weather: Crash Course Kids #43.2

214 views / 0 likes - added 2 years ago

Last time, we learned that there is in fact weather on other planets. But those were the rocky planets, like Earth. What about the big Gas Giants? What's the weather like there? In this episode of Crash Course Kids, Sabrina takes us on a virtual tour of t
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The Real Reason Planes Crash | Boeing 737 Max 8

525 views / 0 likes - added 5 years ago

Computer bugs, technical failure, company design, or scandal? What If Your Airplane Door Opens Mid-Flight? https://youtu.be/eEDZuFw34YM Listen to Sidenote: https://youtu.be/rCWyU77wTQA WATCH MORE! Tech!: https://youtube.com/playlist?list=PLv... Health!: h
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Gotta Eat! - Crash Course Kids 1.1

1,181 views / 2 likes - added 8 years ago

Welcome to Crash Course Kids. In this first episode, Sabrina takes a look at why all living things need to eat. Plus, she shows you a way to investigate why all living things need to eat. This first series is based on 5th grade science. We're super excite
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Fixing Failure Points: Crash Course Kids #42.2

743 views / 0 likes - added 8 years ago

Now that we've talked about failure points, let's talk about how to fix them. In this episode of Crash Course Kids, Sabrina shows us how to set up models and trails to find and fix failure points. Watch More Crash Course Kids: https://www.youtube.com/user
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The French Revolution: Crash Course World History #29

1,435 views / 3 likes - added 9 years ago

In which John Green examines the French Revolution, and gets into how and why it differed from the American Revolution. Was it the serial authoritarian regimes? The guillotine? The Reign of Terror? All of this and more contributed to the French Revolution
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What Is Artificial Intelligence? Crash Course AI #1

293 views / 0 likes - added 4 years ago

Artificial intelligence is everywhere and it's already making a huge impact on our lives. It's autocompleting texts on our cellphones, telling us which videos to watch on YouTube, beating us at video games, recognizing us in photos, ordering products in s
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Unsupervised Learning: Crash Course AI #6

323 views / 0 likes - added 4 years ago

For more information go tohttps://wix.com/go/CRASHCOURSEToday, were moving on from artificial intelligence that needs training labels, called Supervised Learning, to Unsupervised Learning which is learning by finding patterns in the world. Well focus on t
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Tissues, Part 1: Crash Course A&P #2

897 views / 0 likes - added 9 years ago

•••SUBBABLE MESSAGE••• TO: Jordan Schoonover FROM: Mom, Dad&Madison Happy Birthday Jordan! We love you sweetheart!! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything w
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The History of Game Shows: Crash Course Games #25

500 views / 0 likes - added 7 years ago

Today we're going to talk about game shows! Game shows have a long history going all the way back to the 1920s on the radio and then proliferating across media to the massive pop culture icons they are today. And they're different from most game genres we
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Personal Identity: Crash Course Philosophy #19

874 views / 0 likes - added 7 years ago

Today Hank is building on last week’s exploration of identity to focus on personal identity. Does it in reside in your body? Is it in the collective memories of your consciousness? There are, of course, strengths and weaknesses to both of these ideas, and
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Endocrine System, Part 2 - Hormone Cascades: Crash Course A&P #24

902 views / 0 likes - added 8 years ago

In the second half of our look at the endocrine system, Hank discusses chemical homeostasis and hormone cascades. Specifically, he looks at the hypothalamus-pituitary-thyroid axis, or HPT axis, and all the ways your body can suffer when that system, or yo
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Matter Compilation: Crash Course Kids

5,657 views / 15 likes - added 8 years ago

Maybe you'd like to just hear about one topic for a while. We understand. So today, let's just watch some videos about Matter. What is matter? What are particles? And why is this important to know? Did you know that coal can turn into diamonds? Or that so
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Engineering Games: Crash Course Kids #29.2

2,127 views / 7 likes - added 8 years ago

So how can a game teach us about engineering? Pretty easily! When you're trying to solve a game, or a puzzle, or whatever, you will have a bunch of variables. The trick is knowing how to change one variable at a time to see what changes. In this episode o
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Invisible Man: Crash Course Literature 308

600 views / 2 likes - added 7 years ago

This week, we’re on to reading Ralph Ellison’s great novel about the black experience in America after World War II, Invisible Man. John will teach you about Ellison’s nameless narrator, and his attempts to find his way in a social order that dehumanizes
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Seeing Stars: Crash Course Kids

800 views / 0 likes - added 8 years ago

***Corrected with Images of Stars/planets*** So you know what a star is, right? Well, if you don't, you should. We've talked about that big one in the sky a few times: The Sun! But there are a lot of bright dots in the night sky and not all of them are st
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Bowled Over - Isolating Variables: Crash Course Kids #39.1

778 views / 0 likes - added 8 years ago

So, variables. There are lots of them when trying to test an idea. The trick is to isolate one variable at a time to get reliable results every time. But, how do we do that? In this episode of Crash Course Kids, Sabrina shows us how to isolate variables a
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How Words Can Harm: Crash Course Philosophy #28

717 views / 0 likes - added 7 years ago

Content warning: today’s episode contains language that some viewers might find upsetting and that may not be viewable in all settings. We’ve talking about how language works and how powerful it can be. Sometimes, that power can be harmful. Today, Hank ex
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The Adventures Of Huckleberry Finn Part 1: Crash Course Literature #302

530 views / 1 likes - added 7 years ago

In which John Green teaches you about Mark Twain's The Adventures of Huckleberry Finn. This week, we'll talk a little bit about Samuel Langhorne Clemens, who wrote under the name Mark Twain, and how he mined his early life for decades to produce his prett
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Teen Titans Go! | Beast Boy turns into a computer | Cartoon Network

830 views / 1 likes - added 6 years ago

Beast Boy touches a monkey so that he can use more than 10% of his brain to find hidden images in a puzzle. Episode: Brain Percentages CN GAMES: http://cartn.co/ytgames SUBSCRIBE: http://cartn.co/subscribe WATCH MORE: http://cartn.co/morettg About Teen Ti
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Engineering Compilation: Crash Course Kids

748 views / 0 likes - added 8 years ago

Maybe you'd like to just hear about one topic for a while. We understand. Thus, we've created our Compilation Series. In this first (and longest) compilation video, we look at some of our videos about Engineering. Sabrina helps us to understand how engine
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Gravity Compilation: Crash Course Kids

990 views / 2 likes - added 8 years ago

Maybe you'd like to just hear about one topic for a while. We understand. So today, let's just watch some videos about Gravity. We'll learn about why we don't fly off into space, what mass has to do with it, how does air resistance work, and why gravity i
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Economic Systems And Macroeconomics: Crash Course Economics #3

1,005 views / 0 likes - added 8 years ago

In which Jacob Clifford and Adrienne Hill teach you about Economic Systems and Macroeconomics. So, economics is basically about choices. We'll look at some of the broadest economic choices when we talk about the difference between planned economies and ma
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Mass Separation: Crash Course Engineering #17

420 views / 0 likes - added 4 years ago

It can be really important to separate out chemicals for all kinds of reasons. Today were going over three different processes engineers use to achieve that separation: distillation, which separates substances based on their different boiling points; liqu
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Globalization And Trade And Poverty: Crash Course Economics #16

1,002 views / 0 likes - added 8 years ago

What is globalization? Is globalization a good thing or not. Well, I have an answer that may not surprise you: It's complicated. This week, Jacob and Adriene will argue that globalization is, in aggregate, good. Free trade and globalization tend to provid
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Non-Human Animals: Crash Course Philosophy #42

618 views / 0 likes - added 7 years ago

Today we are taking all the things we have learned this year about doing philosophy and applying that to moral considerations regarding non-human animals. We’ll explore what philosophers like Peter Singer and Carl Cohen have to say about their use, includ
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Motion In A Straight Line: Crash Course Physics #1

1,699 views / 1 likes - added 8 years ago

In this, THE FIRST EPISODE of Crash Course Physics, your host Dr. Shini Somara introduces us to the ideas of motion in a straight line. She talks about displacement, acceleration, time, velocity, and the definition of acceleration. Also, how does a physic
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Trauma&Addiction: Crash Course Psychology #31

675 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
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The Roaring 20's: Crash Course US History #32

2,210 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th
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Political Campaigns: Crash Course Government And Politics #39

561 views / 0 likes - added 8 years ago

So political campaigns are a pretty big deal in the United States. For instance the 2012 presidential election clocked in at the most expensive ever - at around $6 billion dollars! Needless to say, money plays a very big role in American elections. So tod
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Kant & Categorical Imperatives: Crash Course Philosophy #35

994 views / 0 likes - added 7 years ago

Our next stop on our tour of ethics is Kant’s ethics. Today Hank explains hypothetical and categorical imperatives, the universalizability principle, autonomy, and what it means to treat people as ends-in-themselves, rather than as mere means. Get your ow
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Recession, Hyperinflation, And Stagflation: Crash Course Econ #13

987 views / 0 likes - added 8 years ago

If you're ever put in charge of a national economy, there are a few things you should try to avoid. Before you laugh, just remember, you COULD be in charge of an economy someday. Someone has to do it, and anyway, if it could happen to Alan Greenspan, it c
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Skyscrapers, Statics, & Dynamics: Crash Course Engineering #26

276 views / 0 likes - added 4 years ago

What if you were on a high floor of a skyscraper and the building started swaying? Today well explore statics and dynamics, and what they mean for the structures we design. We look at the idea of static equilibrium, forces, and torques, and how free body
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Why We Can't Invent a Perfect Engine: Crash Course Engineering #10

679 views / 0 likes - added 4 years ago

Weve introduced the 0th and 1st laws of thermodynamics, so now its time to move on to the second law and how we came to understand it. Well explain the differences between the first and second law, and well talk about the Carnot cycle and why we can never
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Gas Giants Weather: Crash Course Kids #43.2

762 views / 1 likes - added 8 years ago

Last time, we learned that there is in fact weather on other planets. But those were the rocky planets, like Earth. What about the big Gas Giants? What's the weather like there? In this episode of Crash Course Kids, Sabrina takes us on a virtual tour of t
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Electrochemistry: Crash Course Chemistry #36

1,497 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
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Modern Thought and Culture in 1900: Crash Course European History #31

362 views / 0 likes - added 4 years ago

Europe was in transition politically and culturally at the beginning of the 20th century. Today, we're looking at the dawn of modern science, and the rise of Modernism in the arts, especially in music, dance, and visual arts. We'll look at changes in musi
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Vision: Crash Course A&P #18

1,273 views / 0 likes - added 9 years ago

Next stop in our tour of your sensory systems? VISION. With a little help from an optical illusion, we take a look inside your eyes to try to figure out how your sense of vision works -- and how it can be tricked. *** Table of Contents The Structure of th
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Water - Liquid Awesome: Crash Course Biology #2

1,649 views / 0 likes - added 9 years ago

Hank teaches us why water is one of the most fascinating and important substances in the universe. Follow SciShow on Twitter: http://www.twitter.com/scishow Like SciShow on Facebook: http://www.facebook.com/scishow Review: Re-watch = 00:00 Introduction =
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04:35 Popular
Designing A Trial: Crash Course Kids #44.1

879 views / 1 likes - added 8 years ago

It's time to design some trials. Sometimes engineers need to figure out how to test ideas. In order to do that, we need to design trials to find failure points and see how things are going to work in the real world (with gravity, wind, and human error all
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Why Human Ancestry Matters: Crash Course Big History 205

504 views / 0 likes - added 6 years ago

This week, Emily Graslie is teaching you about human ancestry and geneaology, how we got to be the species we are, and why that matters in our zoomed out look at Big History. For more information, visit the Big History Project: http://www.bighistoryprojec
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Family Obligations: Crash Course Philosophy #43

767 views / 1 likes - added 7 years ago

For most of you, your parents brought you into this world. They also fed you, and changed your diapers, and wiped your tears. They raised you. Yet, according to contemporary American philosopher Jane English, once you’re grown, you don’t owe your parents
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Divine Command Theory: Crash Course Philosophy #33

719 views / 0 likes - added 7 years ago

As we venture into the world of ethics, there are a lot of different answers to the grounding problem for us to explore. One of the oldest and most popular is the divine command theory. But with age comes a long history of questions, too, such as the dile
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The First Home Consoles: Crash Course Games #5

546 views / 3 likes - added 8 years ago

So last week Andre talked about Atari’s role in the rise of the video game industry, but Atari wasn’t the only major player in the 1970s. So we’re going to step back a few years and first talk about Ralph Baer who designed the first video game console - t
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Web Search: Crash Course AI #17

332 views / 0 likes - added 4 years ago

Today were going to talk about search engines, which are just AI systems that try to help us find what were looking for. Search engines can be the sort that serve up a list of results, like during a Google or Bing search, using web crawlers, an inverted i
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Poverty & Our Response To It: Crash Course Philosophy #44

660 views / 2 likes - added 7 years ago

We’re picking up where we left off last time, exploring the “ethics of care” and how it applies to extreme poverty. Are we responding to global poverty in a moral way? Philosophers like Peter Singer argue that we have an obligation to prevent harm caused
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Chi-Square Tests: Crash Course Statistics #29

373 views / 0 likes - added 4 years ago

Today we're going to talk about Chi-Square Tests - which allow us to measure differences in strictly categorical data like hair color, dog breed, or academic degree. We'll cover the three main Chi-Square tests: goodness of fit test, test of independence,
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Degrees of Freedom and Effect Sizes: Crash Course Statistics #28

403 views / 1 likes - added 4 years ago

Today we're going to talk about degrees of freedom - which are the number of independent pieces of information that make up our models. More degrees of freedom typically mean more concrete results. But something that is statistically significant isn't alw
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Absolute Monarchy: Crash Course European History #13

747 views / 0 likes - added 4 years ago

So far, the rulers of Europe have been working to consolidate their power and expand their kingdoms, and this is it. The moment they've been working toward: Absolute Monarchy. We're going to learn about how kings and queens became absolute rulers in Europ
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100 Years of Solitude Part 1: Crash Course Literature 306

641 views / 1 likes - added 7 years ago

Our first of two episodes about Gabriel Garcia Marquez's novel, 100 Years of Solitude. This week, we're looking at the Buendia family, and their many generations of people with the same names. We'll also look at the fascinating way the author thinks about
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Why It's So Hard To Make Better Batteries: Crash Course Engineering #32

344 views / 0 likes - added 4 years ago

There are batteries powering so many parts of our everyday lives, so today were going to talk about how they work and how we can make them better. Well explain how they provide power by discharging ions between a cathode and an anode, and how reversing th
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Climate Change: Crash Course Kids #41.2

1,413 views / 6 likes - added 8 years ago

How does climate change? And what happens to environments and ecosystems when it does? In this episode of Crash Course Kids, Sabrina shows us the effects that climate change can have and how one small change in an ecosystem can throw everything off. Watch
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Stress, Strain & Quicksand: Crash Course Engineering #12

783 views / 0 likes - added 4 years ago

Today were talking all about fluid mechanics! Well look at different scales that we work with as engineers, mass and energy transfers, the no-slip condition, stress and strain, Newtons law of viscosity, Reynolds number, and more!Crash Course Engineering i
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Copyright, Exceptions, And Fair Use: Crash Course Intellectual Property #3

729 views / 0 likes - added 9 years ago

Stan Muller teaches you a few things about copyright enforcement, and talks about the exceptions to copyright enforcement. While there are several, the one you've probably heard of is Fair Use, and it's a pretty tricky one. We'll try to explain it, and te
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(LEGO) Block Party: Crash Course Kids #23.2

1,023 views / 0 likes - added 8 years ago

Playing with LEGOS is fun. But, they can also teach us something about matter. In this episode of Crash Course Kids, Sabrina chats about chemical reactions and the Conservation of Matter. Watch More Crash Course Kids: https://www.youtube.com/user/crashcou
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The Impacts of Social Class: Crash Course Sociology #25

568 views / 0 likes - added 6 years ago

This week we are building on last week’s outline of American stratification to explore how class differences affect people’s daily lives. We’ll explore variations in everything from values & beliefs to health outcomes, and look at how these things can per
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Joints: Crash Course A&P #20

976 views / 0 likes - added 9 years ago

We continue our look at your bones and skeletal system, skipping over the silly kid's song in favor of a more detailed look at your your axial and appendicular skeleton. This episode also talks about the structural and functional classifications of your j
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LARP: Crash Course Games #26

466 views / 0 likes - added 7 years ago

Today we’re going to talk about LARPs or live action role-playing games. Larping tends to conjure up the image of a bunch of nerds hitting each other with foam weapons but it’s much more than that. LARPs merge performance, community, and art in a way that
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Autonomic Nervous System: Crash Course A&P #13

1,525 views / 1 likes - added 9 years ago

Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical differences - where ner
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How Voters Decide: Crash Course Government And Politics #38

732 views / 0 likes - added 8 years ago

So today, Craig is going to try to get inside the heads of voters by discussing how voters make decisions. Now obviously, like all decision making, voter decisions are influenced by a multitude of factors, but the three we are going to focus on today (and
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Orbitals: Crash Course Chemistry #25

893 views / 0 likes - added 9 years ago

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 pi bonds. -- Table of Conten
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Money&Debt: Crash Course World History 202

915 views / 0 likes - added 9 years ago

In which John Green teaches about filthy, filthy lucre. Money. And Debt. So, what is money? And what is it for? And why do we use money? And why does it all disappear so quickly after payday? John will look into 75% of these questions, and if he doesn't c
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Freezing pipes & soda can science demonstration // Homemade Science with Bruce Yeany

814 views / 0 likes - added 7 years ago

The physical change of water to ice can exert a tremendous amount of force during the freezing process, somewhere in the range of 30,000 pounds per square inch. That's 15 tons, wonder water pipe don't stand a chance when they freeze. A few metal pipes,fit
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Cheese, Catastrophes, & Process Control: Crash Course Engineering #25

361 views / 0 likes - added 4 years ago

Engineering, like life, could really use a lot more cheese. This week we are looking at a cheese factory in Toronto and what it can teach us about process control systems. Well explore feedforward and feedback systems, and see how integrating them both wi
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Spaced Out: Crash Course Kids #25.1

759 views / 2 likes - added 8 years ago

So... how big is the Universe? It's big... really big... no, bigger than that... it's big. In this episode of Crash Course Kids, Sabrina gives us some perspective on this whole Universe thing and how we fit into it. Watch More Crash Course Kids: https://w
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09:28 Popular
Stock Market Crash of 1929: The Great Depression

934 views / 1 likes - added 2 years ago

History and lessons from the 1929 stock market crash.
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Whisper tube science demonstration /// Homemade Science with Bruce Yeany

836 views / 0 likes - added 7 years ago

The whisper tube is a 35 foot long vacuum hose that is able to carry whispers for the length of the tube with very little loss of energy. Even though the person speaking is 35 feet away, to the person listening, it sounds just as loud as if the person wer
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OCD&Anxiety Disorders: Crash Course Psychology #29

905 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
10:54 Popular
Intro to Psychology - Crash Course Psychology #1

1,014 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
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Lymphatic System: Crash Course A&P #44

1,691 views / 0 likes - added 8 years ago

Today Hank explains your unsung lymphatic system and how it supports cardiovascular function by collecting, filtering, and returning interstitial fluid back into the bloodstream via a system of lymphatic vessels. He also explains the system’s major role i
03:58 Popular
Landforms, Hey!: Crash Course Kids #17.1

1,926 views / 8 likes - added 8 years ago

If you look out your window, you'll probably notice a bunch of things; houses, streets... hopefully a tree. But beyond that you'll see things like mountains, rivers, volcanoes... well, hopefully not a volcano. These are landforms and they come in differen
12:59 Popular
The End of Civilization (In the Bronze Age): Crash Course World History 211

873 views / 1 likes - added 9 years ago

In which John Green teaches you about the Bronze Age civilization in what we today call the middle east, and how the vast, interconnected civilization that encompassed Egypt, The Levant, and Mesopotamia came to an end. What's that you say? There was no su
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Why Star Stuff Matters: Crash Course Big History 202

578 views / 0 likes - added 7 years ago

So, the stars made the elements, we're all made of star stuff, etc. But what does all this mean? This week Emily Graslie teaches you how the formation of chemical elements in the bellies of the earliest stars made life as we know it possible. Namely, we'l
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You Know I'm All About that Bayes: Crash Course Statistics #24

366 views / 0 likes - added 4 years ago

Today were going to talk about Bayes Theorem and Bayesian hypothesis testing. Bayesian methods like these are different from how we've been approaching statistics so far, because they allow us to update our beliefs as we gather new information - which is
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Training Neural Networks: Crash Course AI #4

315 views / 0 likes - added 4 years ago

Today were going to talk about how neurons in a neural network learn by getting their math adjusted, called backpropagation, and how we can optimize networks by finding the best combinations of weights to minimize error. Then well send John Green Bot into
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Why Early Globalization Matters: Crash Course Big History #206

623 views / 0 likes - added 6 years ago

Globalization has been in process for centuries, and has had a huge effect on Big History, and on Collective Learning. This week, Emily is investigating early globalization through three things that moved around the world and shaped collective learning in
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Patents, Novelty, And Trolls: Crash Course Intellectual Property #4

1,417 views / 0 likes - added 9 years ago

This week, Stan teaches you about patents. It turns out, they're patently complicated! So, patents have some similarity to copyright, in that they grant a limited monopoly to people who invent things. The key difference in patents and copyright is that pa
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Luther and the Protestant Reformation: Crash Course World History #218

1,009 views / 4 likes - added 9 years ago

In which John Green teaches you about the Protestant Reformation. Prior to the Protestant Reformation, pretty much everyone in Europe was a Roman Catholic. Not to get all great man, but Martin Luther changed all that. Martin Luther didn't like the corrupt
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Sociology Research Methods: Crash Course Sociology #4

707 views / 0 likes - added 7 years ago

Today we’re talking about how we actually DO sociology. Nicole explains the research method: form a question and a hypothesis, collect data, and analyze that data to contribute to our theories about society. Crash Course is made with Adobe Creative Cloud.
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The Olympics, FIFA, and why we love sports: Crash Course Games #17

625 views / 1 likes - added 7 years ago

Today, John Green is going to be your substitute teacher as we dive into the world of sports! Now “sports” is a pretty broad genre of game, we probably couldn’t even cover them in an entire series, but today we’re going to do our best to look at the origi
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Utilitarianism: Crash Course Philosophy #36

1,116 views / 1 likes - added 7 years ago

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. Get your own Crash Course Philosophy mug or Chom Ch
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Constellation Location: Crash Course Kids #31.2

949 views / 2 likes - added 8 years ago

Let's say you're looking for a specific constellation in the sky, but can't find it? That could be because you're on the wrong part of the planet to see it. In this episode of Crash Course Kids, Sabrina talks about how the Earth's rotation and axis can af
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Studying for Exams: Crash Course Study Skills #7

497 views / 0 likes - added 6 years ago

It turns out that saving all of your studying until after midnight on the night before your big exam is not actually a great way to prepare. Today, Thomas explains some test prep strategies that actually work. Crash Course is made with Adobe Creative Clou
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Why Human Evolution Matters: Crash Course Big History 204

709 views / 0 likes - added 6 years ago

This week on Crash Course Big History, Emily is talking about process of human evolution, and the knack for innovation that has allowed humans to become so dominant on the Earth. Human innovation, and the ability to build on those innovations generation a
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Respiratory System, Part 1: Crash Course A&P #31

1,255 views / 2 likes - added 8 years ago

So we all know that breathing is pretty important, right? Today we're going to talk about how it works, starting with the nameless evolutionary ancestor that we inherited this from, and continuing to the mechanics of both simple diffusion and bulk flow, a
10:57 Popular
Equilibrium: Crash Course Chemistry #28

1,195 views / 0 likes - added 9 years ago

In this episode of Crash Course Chemistry, Hank goes over the ideas of keeping your life balance... well, your chemical life. Equilibrium is all about balance and today Hank discusses Chemical Equilibrium, Concentration, Temperature, and Pressure. Also, h
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Science Fiction Inspires the Future of Science | National Geographic

345 views / 1 likes - added 4 years ago
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H2O-NO! - Fresh Water Problems: Crash Course Kids #33.1

1,106 views / 2 likes - added 8 years ago

What happens to a single ecosystem when the amount of freshwater available in it changes? Not really much good. In this episode of Crash Course Kids, Sabrina talks about ecosystems and how one small change can lead to a cascade effect in the entire ecosys
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Part(icles) Of Your World: Crash Course Kids #3.2

4,756 views / 6 likes - added 9 years ago

Have you ever heard the phrase, "You look like a Million Bucks?" Well, you do... but you also look like a million particles. In this episode, Sabrina talks to us about matter and particles and that all matter is made up of particles. Also, she shows us ho
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Big Data Problems: Crash Course Statistics #39

425 views / 0 likes - added 4 years ago

There is a lot of excitement around the field of Big Data, but today we want to take a moment to look at some of the problems it creates. From questions of bias and transparency to privacy and security concerns, there is still a lot to be done to manage t
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Weather Vs. Climate: Crash Course Kids #28.1

2,313 views / 5 likes - added 8 years ago

So we have Weather and Climate... but are they the same thing? No, no they are not. But they are both super important to how the geosphere is shaped. In this episode of Crash Course Kids, Sabrina chats with us about the differences between Weather and Cli
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Existentialism: Crash Course Philosophy #16

807 views / 0 likes - added 8 years ago

Now that we’ve left behind the philosophy of religion, it’s time to start exploring what other ways might exist to find meaning in the world. Today we explore essentialism and its response: existentialism. We’ll also learn about Jean-Paul Sartre and his i
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Digestive System, Part 3: Crash Course A&P #35

932 views / 1 likes - added 8 years ago

Nachos are great...if you are among the lucky ones whose body can digest them. When digestion goes according to plan, the small intestine performs most of your chemical digestion in the duodenum, while accessory organs including the liver, gallbladder, an
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The Normal Distribution: Crash Course Statistics #19

1,168 views / 0 likes - added 4 years ago

Today is the day we finally talk about the normal distribution! The normal distribution is incredibly important in statistics because distributions of means are normally distributed even if populations aren't. We'll get into why this is so - due to the Ce
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The Cold War: Crash Course US History #37

927 views / 3 likes - added 9 years ago

Crash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom. You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything
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1984 by George Orwell, Part 1: Crash Course Literature 401

615 views / 1 likes - added 6 years ago

In which John Green returns for a dystopian new season of Crash Course Literature! We're starting with George Orwell's classic look at the totalitarian state that could be in post-war England. Winston Smith is under the eye of Big Brother, and making us t
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Work, Energy, And Power: Crash Course Physics #9

1,383 views / 0 likes - added 8 years ago

When you hear the word, "Work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in Physics and today, Shini is going to walk us through it
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Precipitation Reactions: Crash Course Chemistry #9

674 views / 0 likes - added 9 years ago

A lot of ionic compounds dissolve in water, dissociating into individual ions. But when two ions find each other that form an insoluble compound, they suddenly fall out of solution in what's called a precipitation reaction. In this episode of Crash Course
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Contractarianism: Crash Course Philosophy #37

673 views / 0 likes - added 7 years ago

Today we explore the penultimate ethical theory in this unit: contractarianism. Hank explains Hobbes’ state of nature, and implicit and explicit contracts, as well as the Prisoner’s Dilemma, and the benefits, and costs, of violating contracts. Get your ow
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Unsupervised Machine Learning: Crash Course Statistics #37

335 views / 0 likes - added 4 years ago

Today we're going to discuss how machine learning can be used to group and label information even if those labels don't exist. We'll explore two types of clustering used in Unsupervised Machine Learning: k-means and Hierarchical clustering, and show how t
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Artificial Intelligence & Personhood: Crash Course Philosophy #23

744 views / 0 likes - added 7 years ago

Today Hank explores artificial intelligence, including weak AI and strong AI, and the various ways that thinkers have tried to define strong AI including the Turing Test, and John Searle’s response to the Turing Test, the Chinese Room. Hank also tries to
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Intelligent Design: Crash Course Philosophy #11

868 views / 0 likes - added 8 years ago

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. -- Bokeh Spiral by Eric Wüstenhagen: https://www.flickr
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Reinforcement Learning: Crash Course AI#9

359 views / 1 likes - added 4 years ago

Reinforcement learning is particularly useful in situations where we want to train AIs to have certain skills we dont fully understand ourselves. Unlike some of the techniques weve discussed so far, reinforcement learning generally only looks at how an AI
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Material World: Crash Course Kids #40.1

1,448 views / 0 likes - added 8 years ago

So, we know what materials are, but can we make new materials? Or improve the materials we already have? In this episode of Crash Course Kids, Sabrina shows us how Material Scientists are working on these two things today. Also, your cell phone holds the
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The Problem Of Evil: Crash Course Philosophy #13

728 views / 0 likes - added 8 years ago

After weeks of exploring the existence of nature of god, today Hank explores one of the biggest problems in theism, and possibly the biggest philosophical question humanity faces: why is there evil? -- Images and video via VideoBlocks or Wikimedia Commons
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Bonding Models and Lewis Structures: Crash Course Chemistry #24

713 views / 0 likes - added 9 years ago

Models are great, except they're also usually inaccurate. In this episode of Crash Course Chemistry, Hank discusses why we need models in the world and how we can learn from them... even when they're almost completely wrong. Plus, Lewis Structures! -- Tab
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Parasympathetic Nervous System: Crash Course A&P #15

1,130 views / 1 likes - added 9 years ago

This week we are looking at your parasympathetic division, which is the "resting and digesting" unit. Unfortunately, learning about this de-stressing division also involves a whole lot of memorization. Don't worry, though - we've got some mnemonic devices
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Supervised Learning: Crash Course AI #2

318 views / 0 likes - added 4 years ago

Today were going to teach John Green Bot how to tell the difference between donuts and bagels using supervised learning! Supervised learning is the process of learning WITH training labels, and is the most widely used kind of learning with it comes to AI
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Super Stars (Constellations): Crash Course Kids #31.1

1,291 views / 0 likes - added 8 years ago

So, you know about stars. But what if those stars formed a super group like The Avengers? Well, then you have a Constellation! In this episode of Crash Course Kids, Sabrina chats about stars, constellations, and how humans have used constellations to tell
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Algorithmic Bias and Fairness: Crash Course AI #18

283 views / 1 likes - added 4 years ago

Check out my collab with "Above the Noise" about Deepfakes: https://www.youtube.com/watch?v=Ro8b69VeL9UToday, we're going to talk about five common types of algorithmic bias we should pay attention to: data that reflects existing biases, unbalanced classe
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Procrastination: Crash Course Study Skills #6

689 views / 0 likes - added 6 years ago

You’re on YouTube right now, but you should probably be studying or writing that research paper. But as long as you’re here, we’re going to help you figure out how to get the better of your desire to procrastinate in the future. Just don’t forget about us
11:08 Popular
Measuring Personality: Crash Course Psychology #22

1,043 views / 1 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.
03:33 Popular
Danger! Falling Objects: Crash Course Kids #32.1

1,318 views / 1 likes - added 8 years ago

So, what would happen if you dropped a hammer and a feather at the same time, from the same height? Well, the hammer would hit the ground first, right? But why? You might think it's because the hammer is heavier, or has more mass than the feather. But it'
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04:33 Popular
Look Who's Talking: Crash Course Kids #27.2

932 views / 0 likes - added 8 years ago

Plants! We absolutely depend on them. Oxygen, food, and looking super nice to boot! But, plants have a lot more going on than meets the eye. How do we know that? Investigations and Experimentations! Watch More Crash Course Kids: https://www.youtube.com/us
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10:18 Popular
How To Argue - Induction & Abduction: Crash Course Philosophy #3

813 views / 1 likes - added 8 years ago

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. -- Images and video via VideoBlocks or Wikimedia Com
10:02 Popular
Ecological Succession: Change Is Good - Crash Course Ecology #6

1,996 views / 0 likes - added 8 years ago

In the world of ecology, the only constant is change - but change can be good. Today Hank explains ecological succession and how ecological communities change over time to become beautiful, biodiverse mosaics. Like Crash Course on Facebook! http://www.fac
06:36
Congressional Decisions: Crash Course Government and Politics #10

641 views / 0 likes - added 9 years ago

This week Craig breaks out the crystal ball to try and figure out why our congresspeople do the things that they do. We’ll talk about the three motivating factors of congressional decisions - constituency, interest groups, and political parties - and we’l
09:26 Popular
Aesthetic Appreciation: Crash Course Philosophy #30

789 views / 0 likes - added 7 years ago

Today we are talking about art and aesthetic appreciation. What makes something an artwork? Can art really be defined? Is aesthetic value is objective or subjective? Can taste be developed? How? Get your own Crash Course Philosophy mug or Chom Chom shirt
08:54
MMORPGs - Crash Course Games #12

615 views / 0 likes - added 7 years ago

So we ended the last episode with casual gaming and a more connected gaming community, but these connected communities started much before smartphones and Facebook. Today, we’re going to talk about MMORPGs - or Massively Multiplayer Online Role Playing Ga
11:25
The 2008 Financial Crisis: Crash Course Economics #12

646 views / 0 likes - added 8 years ago

Today on Crash Course Economics, Adriene and Jacob talk about the 2008 financial crisis and the US Goverment's response to the troubles. So, all this starts with home mortgages, and the use of mortgages as an investment instrument. For years, it seemed li
08:39
Grip and Electric: Crash Course Film Production #10

559 views / 0 likes - added 6 years ago

It's time to look at some of the most under-sung heroes of the film world, Grip and Electric. Doing everything from setting up dollies and tripods, to helping the cinematographer shape the light with flags and silks, the Grips are there to make it work pr
09:43 Popular
How To Argue - Philosophical Reasoning: Crash Course Philosophy #2

900 views / 0 likes - added 8 years ago

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). -- Images and video via VideoBlo
04:26 Popular
Severe Weather: Crash Course Kids #28.2

1,926 views / 5 likes - added 8 years ago

So, what's the difference between "weather" and "severe weather"? Is it just how hard the wind is blowing? Is it just thunder and lighting? Well, it can be some or all of those things. In this episode of Crash Course Kids, Sabrina talks to us about what m
06:47 Popular
Introduction: Crash Course U.S. Government and Politics

823 views / 0 likes - added 9 years ago

In which Craig Benzine introduces a brand new Crash Course about U.S. Government and Politics! This course will provide you with an overview of how the government of the United States is supposed to function, and we'll get into how it actually does functi
11:23
Intro to Big Data: Crash Course Statistics #38

413 views / 0 likes - added 4 years ago

Today, we're going to begin our discussion of Big Data. Everything from which videos we click (and how long we watch them) on YouTube to our likes on Facebook say a lot about us - and increasingly more and more sophisticated algorithms are being designed
08:13 Popular
Interest Groups: Crash Course Government And Politics #42

749 views / 0 likes - added 8 years ago

Today, Craig is going to talk about something you fans out there have been demanding for months - money in politics. Specifically, we're going to talk about special interest groups and their role in the U.S. political system. Special interest groups are g
13:29
Natural Language Processing: Crash Course AI #7

486 views / 0 likes - added 4 years ago

For more information go to https://curiositystream.com/crashcourse So far in this series, we've mostly focused on how AI can interpret images, but one of the most common ways we interact with computers is through language - we type questions into search e
11:04 Popular
Liquids: Crash Course Chemistry #26

753 views / 1 likes - added 9 years ago

In this episode of Crash Course Chemistry, Hank gives you the low down on things like London Dispersion Forces, Hydrogen Bonds, Cohesion, Adhesion, Viscosity, Capillary Action, Surface Tension, and why liquids are just... WEIRD! -- TABLE OF CONTENTS Londo
01:51
Fizz Inflator Science Experiment with Science Bob

622 views / 0 likes - added 7 years ago

http://www.sciencebob.com has all the instructions to create this balloon inflating contraption that uses the chemical reaction of vinegar and baking soda. Try it out and have fun!
10:08 Popular
Metabolism & Nutrition, Part 2: Crash Course Anatomy & Physiology #37

1,609 views / 0 likes - added 8 years ago

If you're like us, you love the sound of a brunch buffet. But not everything you eat at that glorious buffet is going to be turned into energy. Your body has to work with different forms of food in different ways. In this episode of Crash Course Anatomy &
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Controlling Bureaucracies: Crash Course Government And Politics #17

650 views / 0 likes - added 9 years ago

In which Craig Benzine tells you how we keep bureaucracy in check. So we've spent the last few episodes telling you all about what bureaucracies are and why they are formed. And throughout we've hinted about this ever-expanding power within the executive
11:42 Popular
Mythical Mountains: Crash Course World Mythology #33

933 views / 0 likes - added 6 years ago

Our mythical places series continues, and this week Mike Rugnetta is talking about some stories that revolve around mountains. Mountains loom large in human stories, not least because mountains are, well, large. So ascend with us to the lofty peaks of The
08:16
Pitching and Pre-Production: Crash Course Film Production #2

554 views / 0 likes - added 6 years ago

Pitching your movie to people can be hard. A studio, a friend, your mom... each of these entities will have different stressed and give you different results. But, what's important in a pitch? And what happens after the pitch? How do you get your movie re
12:18 Popular
Copyright Basics: Crash Course Intellectual Property 2

829 views / 0 likes - added 9 years ago

EPISODE DESCRIPTION This week, Stan Muller teaches you the basics of copyright in the United States. Copyright law is territorial, so we're going to cover the system we know the most about, and that's the US. Stan will talk about what kind of ideas can be
04:26 Popular
Star Personalities: Crash Course Kids #25.2

751 views / 0 likes - added 8 years ago

Down here, on Earth, if you look up at the night sky, it seems like all the stars up there look the same. Or maybe at least similar. But, it turns out that stars are very different and we shouldn't stereotype them. Some are bigger, some burn through their
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04:56 Popular
Water Water Everywhere: Crash Course Kids #14.2

1,711 views / 3 likes - added 9 years ago

So you know about Freshwater and Saltwater now and you know that there's not that much Freshwater for us (and other life) to get to. So how do different animals deal with different amounts of water where they live? In this episode of Crash Course Kids, Sa

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