Search Results: "derby crash"

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11:50 Popular
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

808 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 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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PC Gaming: Crash Course Games #20

710 views / 1 likes - added 7 years ago

Today, we're FINALLY going to talk about PC Gaming. So the personal computer is the precursor to the console, but it's not quite accurate to say that it just led to the console. PCs and the video games created on them have and continue to influence the re
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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

453 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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Ford, Cars, and a New Revolution: Crash Course History of Science #28

449 views / 0 likes - added 4 years ago

Historians love to debate each other. So some of them pointed out that the first half of this revolution looks a lot different from the second. Let's chat about industry, cars, and Henry Ford.***Crash Course is on Patreon! You can support us directly by s
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Genetics and The Modern Synthesis: Crash Course History of Science #35

310 views / 0 likes - added 4 years ago

Remember how Darwin and Mendel lived around the same time, but everyone forgot about Mendel until 1900, and even then biologists saw Darwinism and Mendelism as two competing grand theories about how life works?Well, in this episode of Crash Course History
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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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Genetics - Lost and Found: Crash Course History of Science #25

791 views / 0 likes - added 4 years ago

Sometimes trail blazers of science aren't famous like Darwin or Pasteur. Sometimes they're humble Abbots, just growing peas in the back of their Abbey. This is the story of Gregor Mendel and how his work was done, lost, then found again. ***Crash Course i
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Architecture Adventure: Crash Course Kids #47.2

1,016 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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Psychology of Computing: Crash Course Computer Science #38

655 views / 0 likes - added 6 years ago

We’ve spent most of this series talking about computers. Which makes sense - this is Crash Course COMPUTER SCIENCE after all. But at their core computers are tools employed by humans and humans are pretty complicated. So today, we’re going to discuss some
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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
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The Industrial Revolution: Crash Course History of Science #21

413 views / 0 likes - added 4 years ago

You probably know some of the signs of industrialization in the nineteenth century: Trains connected cities, symbolizing progress. But they also brought about the destruction of rural lands, divisions between social classes, and rapid urbanization. But th
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Supervised Machine Learning: Crash Course Statistics #36

392 views / 0 likes - added 4 years ago

We've talked a lot about modeling data and making inferences about it, but today we're going to look towards the future at how machine learning is being used to build models to predict future outcomes. We'll discuss three popular types of supervised machi
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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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Newton and Leibniz: Crash Course History of Science #17

387 views / 1 likes - added 4 years ago

The standard story of the Scientific Revolution culminates with the long life of one man: Sir Isaac Newtona humble servant of the Royal Mint, two-time parliamentarian, and a scientific titan whose name, along with Einsteins, is synonymous with physics tod
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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

5,656 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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Controversy of Intelligence: Crash Course Psychology #23

1,009 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.
03:15 Popular
Resources: Welcome To The Neighborhood - Crash Course Kids #2.1

1,658 views / 8 likes - added 8 years ago

Welcome to the Neighborhood! Humans need a lot of things to survive (I'm sure you've noticed). We need food, water, and shelter and it takes a lot of resources to get all of those things. What are resources? In this episode of Crash Course Kids, Sabrina t
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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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Ecology: Crash Course History of Science #38

348 views / 0 likes - added 4 years ago

Weve explored the origins of modern biology, the earth sciences, and even the sciences of outer space. Now its time to put these disciplines together. It's Ecology time!!!***Crash Course is on Patreon! You can support us directly by signing up at http://w
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The New Astronomy: Crash Course History of Science #13

336 views / 0 likes - added 4 years ago

This week on Crash Course: History of the Scientific Revolutionastronomical anomalies accrued. Meanwhile, in Denmarkan eccentric rich dude constructed not one but two science castles! And his humble German assistant synthesized a lot of new, old, and bold
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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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Frankenstein Part II: Crash Course Literature 206

678 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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Defining A Problem: Crash Course Kids #18.1

1,505 views / 0 likes - added 8 years ago

So, how do engineers even figure out what problem needs to get fixed? And what's the difference between identifying a problem and just complaining about something. In this episode of Crash Course Kids, Sabrina talks about how we can all be better Engineer
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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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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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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
What is an Animal? Crash Course Zoology #1

210 views / 1 likes - added 3 years ago

Check out Animal IQ on PBS Terra! https://youtu.be/Ejhbr_t7BlcSo what is an animal anyway? In our inaugural episode of Crash Course Zoology, well endeavor to answer just that because as it turns out, its complicated! But before we get there well need to i
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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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Over (to) The Moon: Crash Course Kids #13.2

1,040 views / 1 likes - added 9 years ago

Sabrina gets a new set in this episode of Crash Course Kids. Do you want to be an astronaut? Would you like to someday walk on the moon? Well, you better learn a little about gravity so you can escape from Earth and head into space. Today, Sabrina chats w
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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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How Computers Calculate - the ALU: Crash Course Computer Science #5

720 views / 0 likes - added 7 years ago

Take the 2017 PBS Digital Studios Survey: http://surveymonkey.com/r/pbsds2017. Today we're going to talk about a fundamental part of all modern computers. The thing that basically everything else uses - the Arithmetic and Logic Unit (or the ALU). The ALU
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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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Life and Longevity: Crash Course History of Science #44

315 views / 0 likes - added 4 years ago

It's time to have a look at the future of human life and how technology could possibly extend longevity. But, within that tech, are questions of ethics that are not always at the top of mind when the tech is being developed. In this episode, Hank sits dow
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Bodies and Dollars: Crash Course History of Science #41

358 views / 0 likes - added 4 years ago

After World War Two, the applications of basic discoveries in biology took offand became big business. Today, well look at the rise of Big Pharma and GMO foods. Well also discuss how life-science technologies fundamentally changed reproduction: its time t
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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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Up, Up & Away: Crash Course Kids #16.2

1,014 views / 0 likes - added 8 years ago

So... what makes the wind? You might be surprised to learn that it has to do with two of Earth's spheres; The Hydrosphere and the Geosphere. In this episode of Crash Course Kids, Sabrina takes us to the beach to chat about how the wind comes into being an
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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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Early Programming: Crash Course Computer Science #10

606 views / 0 likes - added 7 years ago

Since Joseph Marie Jacquard’s textile loom in 1801, there has been a demonstrated need to give our machines instructions. In the last few episodes, our instructions were already in our computer’s memory, but we need to talk about how they got there - this
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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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The Atomic Bomb: Crash Course History of Science #33

557 views / 0 likes - added 4 years ago

The story picks up where we left off last time, with Einstein writing the president of his new homeland, the United States, urging him to build a nuclear weapon before Hitler. This is the tale of the most destructive force humans have ever unleashed. The
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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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Personhood: Crash Course Philosophy #21

827 views / 0 likes - added 7 years ago

Now that we’ve started talking about identity, today Hank tackles the question of personhood. Philosophers have tried to assess what constitutes personhood with a variety of different criteria, including genetic, cognitive, social, sentience, and the grad
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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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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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The Mind/Brain: Crash Course History of Science #30

288 views / 0 likes - added 4 years ago

Scientists in the nineteenth century discovered a lot about life and matter. But exactly what kind of stuff is the human brain? That one wasand istricky.The brain scienceswith experiments and therapies tied to biological theories of the bodyemerged in the
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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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The Great Escape: Crash Course Kids #13.1

1,251 views / 2 likes - added 9 years ago

Do you know how many people have been to the moon? Only 12! Part of the reason it's so few is because of how difficult it is to escape Earth and get into space in the first place. In this episode of Crash Course Kids, Sabrina talks about gravity, escape v
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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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Darwin and Natural Selection: Crash Course History of Science #22

779 views / 0 likes - added 4 years ago

"Survival of the Fittest" sounds like a great WWE show but today we're talking about that phrase as it relates to Charles Darwin and Alfred Wallace. Darwin and Wallace are at the heart of understanding evolution and natural selection. Today, Hank talks ab
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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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The Singularity, Skynet, and the Future of Computing: Crash Course Computer Science #40

537 views / 0 likes - added 6 years ago

In our SERIES FINALE of Crash Course Computer Science we take a look towards the future! In the past 70 years electronic computing has fundamentally changed how we live our lives, and we believe it’s just getting started. From ubiquitous computing, artifi
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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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The Scientific Methods: Crash Course History of Science #14

740 views / 0 likes - added 4 years ago

Historically speaking, there is no one scientific method. Theres more than one way to make knowledge. In this episode we're going to look at a few of those ways and how they became more of the "norm."***Crash Course is on Patreon! You can support us direc
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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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Defining Gravity: Crash Course Kids #4.1

1,981 views / 7 likes - added 9 years ago

So, if gravity pulls everything down, then why don't things on the bottom of the Earth get pulled down into space? In this episode of Crash Course Kids, Sabrina talks about gravity and explains that when we talk about gravity pulling things down, what we
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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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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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Exercise: Crash Course Study Skills #10

679 views / 0 likes - added 6 years ago

We’re finally to the end of our time together here on Crash Course Study Skills, so this week we’re taking a more holistic approach to being the best learner you can. Part of taking care of your brain is taking care of your whole body, of which your brain
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The Cold War and Consumerism: Crash Course Computer Science #24

592 views / 0 likes - added 6 years ago

Today we’re going to step back from hardware and software, and take a closer look at how the backdrop of the cold war and space race and the rise of consumerism and globalization brought us from huge, expensive codebreaking machines in the 1940s to afford
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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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The Central Processing Unit (CPU): Crash Course Computer Science #7

1,141 views / 0 likes - added 7 years ago

Take the 2017 PBS Digital Studios Survey: http://surveymonkey.com/r/pbsds2017. Today we’re going to build the ticking heart of every computer - the Central Processing Unit or CPU. The CPU’s job is to execute the programs we know and love - you know like G
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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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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
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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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Einstein's Revolution: Crash Course History of Science #32

338 views / 0 likes - added 4 years ago

There was physics before Einstein in the same way that there was biology before Darwin. Einstein didnt just add some new ideas to physics. And he didnt just add a unifying framework for doing physics, like Newton. Einstein took what people thought was phy
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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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The Basics Of Freshwater: Crash Course Kids 14.1

1,983 views / 6 likes - added 9 years ago

We have a lot of water on Earth, but we also can't actually drink much of it... or use it for farming. That's because most of the water on Earth is saltwater. We humans, like a lot of living things, need freshwater to survive. In this episode of Crash Cou
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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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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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Compression: Crash Course Computer Science #21

1,396 views / 0 likes - added 6 years ago

Get your first two months of CuriosityStream free by going to http://curiositystream.com/crashcourse and using the promo code “crashcourse”. So last episode we talked about some basic file formats, but what we didn’t talk about is compression. Often files
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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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H2O-NO! - Fresh Water Problems: Crash Course Kids #33.1

1,105 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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Measurement Mystery: Crash Course Kids #9.2

1,060 views / 0 likes - added 9 years ago

So now that we know what Properties are, how can we use them to figure things out? In this episode of Crash Course Kids, Sabrina uses them to solve the mystery of what she tripped over last night. This first series is based on 5th grade science. We're sup
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3D Graphics: Crash Course Computer Science #27

677 views / 0 likes - added 6 years ago

Today we’re going to discuss how 3D graphics are created and then rendered for a 2D screen. From polygon count and meshes, to lighting and texturing, there are a lot of considerations in building the 3D objects we see in our movies and video games, but th
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Graphical User Interfaces: Crash Course Computer Science #26

662 views / 0 likes - added 6 years ago

Today, we're going to discuss the critical role graphical user interfaces, or GUIs played in the adoption of computers. Before the mid 1980's the most common way people could interact with their devices was through command line interfaces, which though ef
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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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What On Earth: Crash Course Kids #10.1

1,306 views / 2 likes - added 9 years ago

We've already talked about how the Earth is divided into four spheres (The Hydrosphere, the Biosphere, the Geosphere, and the Atmosphere). But, how do these different sphere interact with each other? In this episode of Crash Course Kids, Sabrina chats wit
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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
09:55 Popular
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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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

712 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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Glow On: Crash Course Kids #20.2

1,077 views / 3 likes - added 8 years ago

So, have you ever wondered why some stars are brighter than others? You might think it's because they're closer to us, but that's not the whole story? In this episode of Crash Course Kids, Sabrina chats about how stars glow and how astronomers judge their
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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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Fabulous Food Chains: Crash Course Kids #7.1

1,441 views / 4 likes - added 9 years ago

Everyone eats, right? But how does that food get the energy to power you? In this episode of Crash Course Kids, Sabrina talks about the way energy moves, or flows, through an ecosystem and how that movement forms Food Chains! This first series is based on
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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
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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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Vectors And 2D Motion: Crash Course Physics #4

651 views / 0 likes - added 8 years ago

Continuing in our journey of understanding motion, direction, and velocity... today, Shini introduces the ideas of Vectors and Scalars so we can better understand how to figure out motion in 2 Dimensions. But what does that have to do with baseball? Or tw
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Marie Curie and Spooky Rays: Crash Course History of Science #31

636 views / 3 likes - added 4 years ago

It's time to talk about one of the most awesome scientists that has ever been awesome: Marie Curie. She figured out ways to get an amazing education despite the limitations of her homeland, discovered some really important answers to the question "what is
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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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What's Matter? - Crash Course Kids #3.1

3,115 views / 12 likes - added 9 years ago

Hey... what's matter? No no no, not what's THE matter. What's MATTER? In this episode of Crash Course Kids, Sabrina talks about what matter is and the three states of matter: Solid, Liquid, and Gas. She also does a quick experiment that you can do at home
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How To Argue - Induction & Abduction: Crash Course Philosophy #3

812 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
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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
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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
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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
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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
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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
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Cybersecurity: Crash Course Computer Science #31

670 views / 0 likes - added 6 years ago

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 like passwords, biom
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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
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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
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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
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Why No Polar Pineapples: Crash Course Kids #11.2

1,083 views / 0 likes - added 9 years ago

Plants are amazing. Really! Photosynthesis is an incredible thing. But it also means that some plants can't live everywhere. They need to get the right amount of sunlight for the right amount of time. In this episode of Crash Course Kids, Sabrina chats ab
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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
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Bayes in Science and Everyday Life: Crash Course Statistics #25

372 views / 0 likes - added 4 years ago

Today we're going to finish up our discussion of Bayesian inference by showing you how we can it be used for continuous data sets and be applied both in science and everyday life. From A/B testing of websites and getting a better understanding of psycholo
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Water Fight!: Crash Course Kids #36.1

1,532 views / 1 likes - added 8 years ago

So, what happens when there's not enough water? Well... not good things. Do we let homes have more water for showering and cooking? Or do we let farms have the water for growing crops? There aren't any easy solutions, but today Sabrina chats with us about
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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
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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
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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
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Hunting For Properties: Crash Course Kids #9.1

800 views / 1 likes - added 9 years ago

Remember pre-school? If not, IT WAS SO MUCH EASIER! But when you were stacking blocks and figuring out which block went into which shaped hole, you were learning about properties. In this episode of Crash Course Kids, Sabrina talks about what properties a
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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
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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
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Vegetation Transformation: Crash Course Kids #5.2

1,110 views / 0 likes - added 9 years ago

Have you ever seen a magic trick where one thing changes to another thing? Well, that's nothing compared to what plants can do through a process called photosynthesis. In this episode, Sabrina talks about how photosynthesis works! This first series is bas
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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
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Weathering And Erosion: Crash Course Kids #10.2

3,386 views / 10 likes - added 9 years ago

In this episode of Crash Course Kids, Sabrina gives us a real world example of how the Hydrosphere and Geosphere affect each other in the form of Weathering and Erosion. Think of Weathering as the force that makes a mess and Erosion as the force that clea
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Seasons And The Sun: Crash Course Kids 11.1

2,263 views / 1 likes - added 9 years ago

Updated with graphics fixed. Thanks for pointing that out! Ever wonder why we have seasons? A lot of people think it's because the Earth gets further away from the sun in winter, and closer in the summer. But, it's actually more interesting than that. In
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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
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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
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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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Italian and German Unification: Crash Course European History #27

580 views / 0 likes - added 4 years ago

So, we haven't talked much about Italy and Germany so far in Crash Course Euro, and that's because prior to the mid-19th century, those two nation-states weren't really a thing. Today we'll look at how Italy and Germany pulled it together in the second ha
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Keyboards & Command Line Interfaces: Crash Course Computer Science #22

694 views / 0 likes - added 6 years ago

Today, we are going to start our discussion on user experience. We've talked a lot in this series about how computers move data around within the computer, but not so much about our role in the process. So today, we're going to look at our earliest form o
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Political Parties: Crash Course Government And Politics #40

672 views / 1 likes - added 8 years ago

Today, Craig is going to talk about political parties and their role in American politics. So, when most people think about political parties they associate them with the common ideologies of the voters and representatives within that party, but the goal
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Taking Notes: Crash Course Study Skills #1

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The first step in honing your new study skills is to take better notes. This week Thomas will tell you everything you need to know to come to class prepared and find a note-taking system that will help you retain and review like a champ. Resources: Study
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History of the 4th of July: Crash Course US History Special

835 views / 3 likes - added 9 years ago

In which John Green teaches you a bit about the 4th of July. In this special short Crash Course, John celebrates American Independence Day by teaching you how the holiday came to be on the 4th of July, and the many ways that Americans celebrate the day. T
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Registers and RAM: Crash Course Computer Science #6

739 views / 0 likes - added 7 years ago

Take the 2017 PBS Digital Studios Survey: http://surveymonkey.com/r/pbsds2017. Today we’re going to create memory! Using the basic logic gates we discussed in episode 3 we can build a circuit that stores a single bit of information, and then through some
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Memory & Storage: Crash Course Computer Science #19

590 views / 0 likes - added 6 years ago

Pre-order our limited edition Crash Course: Computer Science Floppy Disk Coasters here! https://store.dftba.com/products/computer-science-coasters So we’ve talked about computer memory a couple times in this series, but what we haven’t talked about is sto
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Types Of Bureaucracies: Crash Course Government And Politics #16

612 views / 0 likes - added 9 years ago

This week Craig Benzine breaks down the different types of bureaucracies. I mean sure, they’re all part of the executive branch, but some work more directly with the president than others. Some bureaucracies exist solely to independently regulate industry
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Test Anxiety: Crash Course Study Skills #8

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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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Tissues, Part 2 - Epithelial Tissue: Crash Course A&P #3

1,553 views / 0 likes - added 9 years ago

•••SUBBABLE MESSAGE••• TO : Phoebe and James McMullan FROM : Dad Continue being awesome Phoebe&James from John&Hank! *** 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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Papers & Essays: Crash Course Study Skills #9

550 views / 0 likes - added 6 years ago

Writing research papers is an essential skill in your career as a student, and this week we’re going to help you do that like a pro. From figuring out where to begin, to finding the best systems, to breaking out of “research recursion system” (maybe just
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Screens & 2D Graphics: Crash Course Computer Science #23

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Today we begin our discussion of computer graphics. So we ended last episode with the proliferation of command line (or text) interfaces, which sometimes used screens, but typically electronic typewriters or teletypes onto paper. But by the early 1960s a
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Respiratory System, Part 2: Crash Course A&P #32

1,174 views / 1 likes - added 8 years ago

Can a paper bag really help you when you are hyperventilating? It turns out that it can. In part 2 of our look at your respiratory system Hank explains how your blood cells exchange oxygen and CO2 to maintain homeostasis. We'll dive into partial pressure
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Why the Evolutionary Epic Matters: Crash Course Big History #203

448 views / 0 likes - added 6 years ago

Today we're talking about evolution–basically the history of all life on Earth. The thing is, why are we talking about this. Well, the story of life, all the way back to single celled microbes billions of years ago, is all part of our human story. An impo
What Are Rocks and How Do They Form? Crash Course Geography #18

229 views / 0 likes - added 2 years ago

From towering mountains to pebbles along a river, the Earth is made of a huge variety of rocks. In today's episode, we're going to follow the rock cycle of a piece of granite in the Himalayan mountains, and as you'll see, every rock has a far-reaching sto
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Immune System, Part 1: Crash Course A&P #45

1,253 views / 2 likes - added 8 years ago

Our final episodes of Anatomy & Physiology explore the way your body keeps all that complex, intricate stuff alive and healthy -- your immune system. The immune system’s responses begin with physical barriers like skin and mucous membranes, and when they’
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Breaking the Silence: Crash Course Film History #10

559 views / 1 likes - added 6 years ago

Nothing changed movies like the arrival of synchronous sound. NOTHING! Acting, directing, cinematography, and presentation all had to be rethought. Some studios were more quick to take on the challenge while others waited until the last moment. Some actor
03:47 Popular
A Change Of Scenery: Crash Course Kids #17.2

4,441 views / 2 likes - added 8 years ago

The world changes. It really does! But sometimes it changes so slowly that we don't notice it. Other times it changes REALLY FAST!!! In this episode of Crash Course Kids, Sabrina talks about some of the reasons things can change quickly or slowly. This fi
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Digestive System, Part 1: Crash Course A&P #33

1,808 views / 5 likes - added 8 years ago

Nachos are delicious. And versatile because today they're also going to help us learn a thing or two about your digestive system. Nachos can provide us with energy and raw materials, by first ingesting something nutritious, propelling it through the alime
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The Reagan Revolution: Crash Course US History #43

1,181 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. 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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Robots: Crash Course Computer Science #37

605 views / 2 likes - added 6 years ago

Today we're going to talk about robots! Robots are often thought as a technology of the future, but they're already here by the millions in the workplace, our homes, and pretty soon on the roads. We'll discuss the origins of robotics to its proliferation,
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Taste&Smell: Crash Course A&P #16

986 views / 0 likes - added 9 years ago

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 into action potent
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The Enlightenment: Crash Course European History #18

846 views / 2 likes - added 4 years ago

So far in this series, we've covered a lot of war, disease, climate disaster, and some more war. Well, prepare yourself for something a little more positive. This week, we're talking about the Enlightenment. In this video, you'll learn about the ideas of
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Wood, Water, And Properties: Crash Course Kids #15.1

827 views / 1 likes - added 8 years ago

Quick, think of three words to describe yourself. TIME'S UP! What did you think of? Chances are you thought of descriptive words that we call Properties. In this episode of Crash Course Kids, Sabrina talks about how properties help us understand objects.
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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
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Polymers - Crash Course Chemistry #45

2,012 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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Living Things Change: Crash Course Kids #41.1

1,329 views / 3 likes - added 8 years ago

Have you ever heard of the Peppered Moth? It's a great example of how living things can change because their environment has changed. And it's not just them! There used to be giant insects roaming the world, but they got smaller through time because their
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