Search Results: "stock market crash 1929"

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15:33
Witchcraft: Crash Course European History #10

427 views / 2 likes - added 4 years ago

During our last several episodes, Europe and the European-controlled world have been in crisis. Wars, disease, climate changes, and shifts in religious and political power threw the European world into turmoil. People were looking for a scapegoat, and for
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Commerce, Agriculture, and Slavery: Crash Course European History #8

410 views / 0 likes - added 4 years ago

We've been talking a lot about kings, and queens, and wars, and religious upheaval for most of this series, but let's take a moment to zoom out, and look at the ways that individuals' lives were changing in the time span we've covered so far. Some people'
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Card Games: Crash Course Games #13

754 views / 0 likes - added 7 years ago

Today, we’re going to step away from video games and take a closer look at a game type that has been with us for over a millennium - card games. Since Tang Dynasty China, cards have proven to have quite the staying power spawning a countless variety of ga
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Modern Life: Crash Course European History #30

350 views / 0 likes - added 4 years ago

So, "modern" is kind of a loaded term, but today we're going to talk about modern life in Europe, as it looked around the time the 19th century turned into the 20th. We'll look at what life was like in the rapidly growing urban centers of Europe, how deve
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Part(icles) Of Your World: Crash Course Kids #3.2

4,749 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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Judicial Decisions: Crash Course Government And Politics #22

657 views / 1 likes - added 8 years ago

Today, Craig Benzine is going to dive into the factors that influence judicial decisions. As you may have noticed, the Supreme Court recently handed down some pretty big decisions on same-sex marriage (in Obergefell v Hodges) and the Affordable Care Act (
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Tissues, Part 3 - Connective Tissues: Crash Course A&P #4

1,148 views / 0 likes - added 9 years ago

•••SUBBABLE MESSAGE••• TO: Ashley FROM: Fee Happy birthday nerd also I love you lots and lots *** 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 y
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Judicial Review: Crash Course Government And Politics #21

1,197 views / 0 likes - added 8 years ago

Today, Craig Benzine is going to tell you about the Supreme Court's most important case, Marbury v. Madison, and how the court granted itself the power of judicial review. Judicial review is the power to examine and invalidate actions of the legislative a
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The Industrial Revolution: Crash Course European History #24

588 views / 0 likes - added 4 years ago

We've talked about a lot of revolutions in 19th Century Europe, and today we're moving on to a less warlike revolution, the Industrial Revolution. You'll learn about the development of steam power and mechanization, and the labor and social movements that
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Cats Vs Dogs? Let's make an AI to settle this: Crash Course Ai #19

345 views / 0 likes - added 4 years ago

Follow along: https://colab.research.google.com/drive/1N5IdMTmiNbwEOD8dqammN8GAfpk41arwToday, in our final lab, Jabril tries to make an AI to settle the question once and for all, "Will a cat or a dog make us happier?" But in building this AI, Jabril will
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Programming Basics: Statements & Functions: Crash Course Computer Science #12

1,173 views / 0 likes - added 7 years ago

Today, Carrie Anne is going to start our overview of the fundamental building blocks of programming languages. We’ll start by creating small programs for our very own video game to show how statements and functions work. We aren’t going to code in a speci
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Machine Learning & Artificial Intelligence: Crash Course Computer Science #34

545 views / 0 likes - added 6 years ago

So we've talked a lot in this series about how computers fetch and display data, but how do they make decisions on this data? From spam filters and self-driving cars, to cutting edge medical diagnosis and real-time language translation, there has been an
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Hackers & Cyber Attacks: Crash Course Computer Science #32

679 views / 1 likes - added 6 years ago

Today we're going to talk about hackers and their strategies for breaking into computer systems. Now, not all hackers are are malicious cybercriminals intent on stealing your data (these people are known as Black Hats). There are also White Hats who hunt
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Food Webs: Crash Course Kids #21.2

1,645 views / 4 likes - added 8 years ago

Last time we put a Polar Bear in the desert and we still feel bad about that, but there's a lot more going on in ecosystems than just temperature. In fact, there are so many elements in ecosystems, that if just one leaves or gets out of whack, it can be t
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Buffers, the Acid Rain Slayer: Crash Course Chemistry #31

1,022 views / 2 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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Instructions & Programs: Crash Course Computer Science #8

643 views / 1 likes - added 7 years ago

Take the 2017 PBS Digital Studios Survey: http://surveymonkey.com/r/pbsds2017. Today we’re going to take our first baby steps from hardware into software! Using that CPU we built last episode we’re going to run some instructions and walk you through how a
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Natural Language Processing: Crash Course Computer Science #36

642 views / 0 likes - added 6 years ago

Today we’re going to talk about how computers understand speech and speak themselves. As computers play an increasing role in our daily lives there has been an growing demand for voice user interfaces, but speech is also terribly complicated. Vocabularies
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Social Stratification in the US: Crash Course Sociology #23

587 views / 0 likes - added 6 years ago

Social class in America is... hard to talk about. As Sociology, the difficulty lies in pinning down what we mean by "Social Class." In this episode of Crash Course Sociology, Nicole chats to us about how Sociologists figure this out so we can all have a c
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Nonexistent Objects & Imaginary Worlds: Crash Course Philosophy #29

604 views / 0 likes - added 7 years ago

Today we transition between units on language and aesthetics with a discussion of nonexistent and imaginary objects. Is it possible to make true assertions about things that aren’t real? We’ll explore Meinong’s Jungle and the concept of a universe of disc
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English Civil War: Crash Course European History #14

448 views / 0 likes - added 4 years ago

The English Civil War. We'll talk about England after Elizabeth, in which things didn't go that smoothly. We'll talk about James I, Charles I, Oliver Cromwell, Charles II, and James II, all of whom ruled England, (and tried to rule all of Britain and Irel
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Intro to Algorithms: Crash Course Computer Science #13

975 views / 0 likes - added 7 years ago

Algorithms are the sets of steps necessary to complete computation - they are at the heart of what our devices actually do. And this isn’t a new concept. Since the development of math itself algorithms have been needed to help us complete tasks more effic
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What's My Property: Crash Course Kids #35.2

1,187 views / 0 likes - added 8 years ago

What exactly can we tell about an unknown substance by it's properties. We already know that a substance is matter that’s made of one kind of atom or molecule, and that has specific properties and that some substances are elements, which means they can’t
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English Theater After Shakespeare: Crash Course Theater #17

364 views / 0 likes - added 4 years ago

You can learn more about CuriosityStream at https://curiositystream.com/crashcourseThis week on Crash Course Theater, Shakespeare is dead. Long live Shakespeare. Well, long live English theater, anyway. Actually, it's about to get banned. Anyway, we're di
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Obamanation: Crash Course US History #47

774 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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How Seawater Sabotages Ships: Crash Course Engineering #43

1,138 views / 0 likes - added 4 years ago

This week were headed out to sea for some marine engineering. How do we design ships to handle aquatic environments? How do we deal with marine life and corrosion and all of the other problems that come with engineering in the ocean? How can large maritim
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Advanced CPU Designs: Crash Course Computer Science #9

575 views / 0 likes - added 7 years ago

So now that we’ve built and programmed our very own CPU, we’re going to take a step back and look at how CPU speeds have rapidly increased from just a few cycles per second to gigahertz! Some of that improvement, of course, has come from faster and more e
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Ancient Games: Crash Course Games #2

743 views / 0 likes - added 8 years ago

From the ancient Egyptian game of Senet to the Aztec’s Patolli, games have been played since the beginning of civilization. Today, your host Andre Meadows is going to take a look at a few of these games, including some that are actually still played today
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Monetary And Fiscal Policy: Crash Course Government And Politics #48

827 views / 0 likes - added 8 years ago

Today, Craig is going to dive into the controversy of monetary and fiscal policy. Monetary and fiscal policy are ways the government, and most notably the Federal Reserve, influences the economy - for better or for worse. So we’re going to start by lookin
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The Protestant Reformation: Crash Course European History #6

380 views / 0 likes - added 4 years ago

You may have noticed that the internet is terrible at religious discourse. Well, this is not a new phenomenon. In the early 16th century, the Roman Catholic church dominated Christianity in Europe, and the institution was starting to show some cracks. Ten
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Blood, Part 1 - True Blood: Crash Course A&P #29

1,822 views / 0 likes - added 8 years ago

Now that we've talked about your blood vessels, we're going to zoom in a little closer and talk about your blood itself. We'll start by outlining the basic components of blood -- including erythrocytes, leukocytes, platelets, and plasma -- as well as the
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Stress, Strain & Quicksand: Crash Course Engineering #12

782 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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World War II Part 2 - The Homefront: Crash Course US History #36

1,481 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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Dutch Golden Age: Crash Course European History #15

472 views / 0 likes - added 4 years ago

While the English were falling apart a little, with their civil war and their restoration and their succession problems, the Dutch were getting their act together. They were throwing off the yoke of the Spanish Empire, uniting their provinces, and buildin
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Silicon - The Internet's Favorite Element: Crash Course Chemistry #35

1,295 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 World Wide Web: Crash Course Computer Science #30

623 views / 0 likes - added 6 years ago

Today we’re going to discuss the World Wide Web - not to be confused with the Internet, which is the underlying plumbing for the web as well as other networks. The World Wide Web is built on the foundation of simply linking pages to other pages with hyper
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Foreign Policy: Crash Course Government And Politics #50

2,188 views / 1 likes - added 8 years ago

Today Craig finishes up our series on U.S. Government and Politics by talking about both the least and most important aspect of government: foreign policy. Foreign policy is important because it has the potential to affect the largest number of people, bu
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Heat Engines, Refrigerators, & Cycles: Crash Course Engineering #11

894 views / 0 likes - added 4 years ago

Cycles are a big deal in engineering. Today well explain what they are and how theyre used in heat engines, refrigerators, and heat pumps. Well also discuss phase diagrams and the power of using renewable energy resourcesCrash Course Engineering is produc
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Enlightened Monarchs: Crash Course European History #19

658 views / 0 likes - added 4 years ago

Last time we learned about the Enlightenment, and the philosophers and thinkers whose ideas would shape governance for hundred of years. This week, we're learning how monarchs across Europe were influenced by those ideas. Adoption of Enlightenment ideas a
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Medieval Europe: Crash Course European History #1

753 views / 1 likes - added 4 years ago

Our European history is going to start around 1500 with the Renaissance, but believe it or not, that is not the actual beginning of history in the continent. So, today, we're going to teach you the broad outlines of the so-called Middle Ages, and look at
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Intelligent Design: Crash Course Philosophy #11

866 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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Structure Of The Court System: Crash Course Government And Politics #19

997 views / 0 likes - added 9 years ago

This week Craig Benzine is going to talk about the structure of the U.S. court system and how exactly it manages to keep things moving smoothly. We’’ll talk about trial courts, district courts, appeals courts, circuit courts, state supreme courts, and of
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Open World Games: Crash Course Games #22

709 views / 1 likes - added 7 years ago

Today we’re going to talk about open world games. Open world games are different than most video games because although they often have goals and tasks, they usually encourage what is known as “emergent stories.” These are stories that weren’t planned by
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Russian Revolution and Civil War: Crash Course European History #35

706 views / 0 likes - added 4 years ago

World War I was very hard on the Russian Empire. So hard, in fact, that it led to the end of the Russian Empire. As the global conflict ground on, Tsar Nicholas II faced increasing unrest at home. Today we'll learn about the Revolutions of 1917, the rise
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World War I Battlefields: Crash Course European History #33

530 views / 0 likes - added 4 years ago

Europe's system of alliances and centuries-old tensions erupted into war in August of 1914. This week on Crash Course Euro, we're talking about the military history of World War I, and taking a look at the broad strokes of how the war unfolded. We'll take
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Home Sweet Habitat: Crash Course Kids #21.1

1,112 views / 3 likes - added 8 years ago

How would a Polar Bear do if you put it in the desert? Not well. But why? Why can't anything live anywhere? Well, this has to do with Habitats and how animals (including humans) are suited for living in one place over another. In this episode, Sabrina tal
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Role-playing Games: Crash Course Games #18

752 views / 2 likes - added 7 years ago

Today, we’re going to explore the world of role-playing games. Role-playing games are different than most, because they’re technically a form of interactive storytelling with one player managing the game as the game master (or dungeon master), and all of
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What Is Sociology?: Crash Course Sociology #1

618 views / 0 likes - added 7 years ago

Today we kick off Crash Course Sociology by explaining what exactly sociology is. We’ll introduce the sociological perspective and discuss how sociology differentiates itself from the other social sciences. We’ll also explore what sociology can do, and ho
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The Meaning Of Knowledge: Crash Course Philosophy #7

779 views / 0 likes - added 8 years ago

On today’s episode...CATS. Also: Hank talks about some philosophy stuff, like a few of the key concepts philosophers use when discussing belief and knowledge, such as what defines an assertion and a proposition, and that belief is a kind of propositional
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Water and Solutions -- for Dirty Laundry: Crash Course Chemistry #7

1,634 views / 0 likes - added 9 years ago

Dihydrogen monoxide (better know as water) is the key to nearly everything. It falls from the sky, makes up 60% of our bodies, and just about every chemical process related to life takes place with it or in it. Without it, none of the chemical reactions t
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Samurai, Daimyo, Matthew Perry, and Nationalism: Crash Course World History #34

808 views / 1 likes - added 9 years ago

In which John Green teaches you about Nationalism. Nationalism was everywhere in the 19th century, as people all over the world carved new nation-states out of old empires. Nationalist leaders changed the way people thought of themselves and the places th
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How the Leaning Tower of Pisa Was Saved: Crash Course Engineering #40

391 views / 0 likes - added 4 years ago

This week were going underground to explore geotechnical and seismic engineering. Well look at how structures connect to the ground and transmit loads through their foundations, and how those foundations need to provide a high bearing capacity. Well see h
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Water Water Everywhere: Crash Course Kids #14.2

1,709 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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Educational Games: Crash Course Games #15

706 views / 0 likes - added 7 years ago

Chess, Number Munchers, The Oregon Trail! Today, we’re going to talk about gaming’s role in education. Now technically all games have an educational component, because games are defined by their rules and players have to learn those rules to participate.
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The Mighty Power of Nanomaterials: Crash Course Engineering #23

379 views / 0 likes - added 4 years ago

Just how small are nanomaterials? And what can we do with stuff that small? Today well discuss some special properties of nanomaterials, how some can change at different sizes, and the difference between engineered nanomaterials and ones that occur natura
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War and Civilization: Crash Course World History 205

730 views / 3 likes - added 9 years ago

In which John Green investigates war, and what exactly it may or may not be good for. Was war a result of human beings organizing into larger and more complex agricultural social orders, or did war maybe create agriculture and "civilization?" It's hard to
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The Law of Conservation: Crash Course Engineering #7

302 views / 0 likes - added 4 years ago

Today Shini explains the law of conservation, beginning with simple, steady-state systems. Well discuss conversion and yield, accumulation, and how generation and consumption can affect how much accumulation there is in a system.This episode is sponsored
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The Dawn Of Video Games: Crash Course Games #3

679 views / 1 likes - added 8 years ago

Over the next few episodes we’re going to talk about the history of video games. Today, we’re going to start with the first re-programmable computers in the 1940’s. Now, these computers were serious tools. They were for codebreaking and calculating artill
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Disease! Crash Course World History 203

987 views / 2 likes - added 9 years ago

In which John Green teaches you about disease, and the effects that disease has had in human history. Disease has been with man since the beginning, and it has shaped the way humans operate in a lot of ways. John will teach you about the Black Death, the
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Sound Production: Crash Course Film Production #5

1,155 views / 0 likes - added 6 years ago

Good sound is easy to miss because, usually, you're not paying attention to it. You're just simply, "in the story." But, sound recordists and engineers need to have a lot of technical know how as well as an instinct for story to help immerse us in the wor
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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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Population Ecology: The Texas Mosquito Mystery - Crash Course Ecology #2

1,289 views / 1 likes - added 8 years ago

Population ecology is the study of groups within a species that interact mostly with each other, and it examines how they live together in one geographic area to understand why these populations are different in one time and place than they are in another
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Reform and Revolution 1815-1848: Crash Course European History #25

495 views / 0 likes - added 4 years ago

In the aftermath of the revolutions and upheaval in 18th and early 19th century Europe, there was a hunger for reform across the continent. Reformers like Robert Owen, Charles Fourier, and Auguste Comte proposed radical new ideas, and at the same time, re
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Four Spheres Part 1 (Geo And Bio): Crash Course Kids #6.1

1,577 views / 5 likes - added 9 years ago

In this episode of Crash Course Kids, Sabrina talks about two of the four spheres that make up our planet; The Geosphere and the Biosphere. What's in these spheres? How do they affect us? How do they fit into the puzzle that is Earth? All is contained wit
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The Modern Revolution: Crash Course Big History #8

822 views / 0 likes - added 9 years ago

In which Hank and John Green teach you a Crash Course on the modern revolution, and the upside of the progress that humanity has made in the last 500 years or so. And while there are two sides to every history, and many of these changes haven't been great
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Eastern Europe Consolidates: Crash Course European History #16

418 views / 0 likes - added 4 years ago

While the focus has been on Western Europe so far, there has also been a lot going on in Eastern Europe, which we'll be looking at today. The Commonwealth of Poland-Lithuania, The Ottoman Empire, and Russia were all competing at the eastern end of the con
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Humans and AI working together: Crash Course AI #14

340 views / 0 likes - added 4 years ago

Theres been a lot of discussion about how automation is going to take peoples jobs and we dont want to downplay that real impact, but today were going to focus on the benefits of humans and AI working together. Human-AI teams allow us to fill in each othe
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Expansion and Consequences: Crash Course European History #5

408 views / 0 likes - added 4 years ago

European exploration had a lot of side effects. When the Old World and the New World began to interact, people, wealth, food, animals, and disease began to flow in both directions. In the New World, countless millions were killed by smallpox, measles, and
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The 17th Century Crisis: Crash Course European History #11

400 views / 0 likes - added 4 years ago

The 17th Century in Europe was pretty rough in a lot of ways. The Thirty Years War involved a lot of countries, and a lot of battles, and it was terrible for everyone involved, as wars have aa historical tendency to be. At the same time, disease and hunge
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Biomaterials: Crash Course Engineering #24

372 views / 0 likes - added 4 years ago

Weve talked about different materials engineers use to build things in the world, but theres a special category of materials they turn to when building things to go inside our bodies. In this episode well explore the world biomaterials like titanium and t
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Mass-Producing Ice Cream with Food Engineering: Crash Course Engineering #39

336 views / 0 likes - added 4 years ago

In this episode, we looked at food engineering. We explored how foods capacity to spoil makes it a unique challenge from an engineering viewpoint. We saw how many branches of engineering come into play to process ingredients, ensure safety for consumers,
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Communists, Nationalists, and China's Revolutions: Crash Course World History #37

854 views / 3 likes - added 9 years ago

Don't forget! Crash Course posters and t-shirts at http://www.dftba.com/crashcourse In which John Green teaches you about China's Revolutions. While the rest of the world was off having a couple of World Wars, China was busily uprooting the dynastic syste
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Civil Rights and the 1950s: Crash Course US History #39

1,187 views / 5 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
04:46 Popular
Normal Stuff In Not-So-Normal Places: Crash Course Kids 46.2

821 views / 0 likes - added 8 years ago

So, what happens to normal stuff (like water) when it goes to not so normal places? What happens if you take a glass of water to the top of Mt. Everest? Or Space? In this episode of Crash Course Kids, Sabrina shows us how matter is affected by different p
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The Integumentary System, Part 2 - Skin Deeper: Crash Course A&P #7

762 views / 0 likes - added 9 years ago

•••SUBBABLE MESSAGE••• TO: Helle Søndergaard FROM: Martin Søndergaard Congratulations for finishing first semester on physiotherapy! I'm so proud! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as
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Women in the 19th Century: Crash Course US History #16

1,170 views / 1 likes - added 9 years ago

In which John Green finally gets around to talking about some women's history. In the 19th Century, the United States was changing rapidly, as we noted in the recent Market Revolution and Reform Movements episodes. Things were also in a state of flux for
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18th Century Warfare: Crash Course European History #20

422 views / 0 likes - added 4 years ago

European powers had a lot of wars in the 18th century, and they weren't confined to Europe. Conflict raged across the globe, in what might be called a World War...but we don't call it that, because we already have a couple of those coming up in the 20th c
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Blood, Part 2 - There Will Be Blood: Crash Course A&P #30

961 views / 0 likes - added 8 years ago

It's time to start talking about some of the terrible things you can do to your own body, like blood doping. We'll start by explaining the structure and function of your erythrocytes, and of hemoglobin, which they use to carry oxygen. We'll follow the for
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Computer Engineering & the End of Moore's Law: Crash Course Engineering #35

1,187 views / 0 likes - added 4 years ago

This week were exploring a field of engineering that is essential to how youre watching this video: computers and computer engineering. Well explain differences between hardware and software, how engineers are working on making computers smaller and more
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Migrations and Intensification: Crash Course Big History #7

1,037 views / 0 likes - added 9 years ago

In which Hank and John Green teach you about humanity conquering the Earth. Or at least moving from Africa into the rest of the Earth. As human beings spread out across the world and populations grew, humanity reached a critical mass of innovators, and co
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Charles V and the Holy Roman Empire: Crash Course World History #219

1,097 views / 2 likes - added 9 years ago

Get the new Crash Course World History Character poster here: http://store.dftba.com/products/crashcourse-characters-poster In which John Green teaches you about the Holy Roman Empire by teaching you about Charles V. Charles Hapsburg was the holy Roman Em
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Nuclear Chemistry Part 2: Fusion and Fission - Crash Course Chemistry #39

1,740 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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Computer Networks: Crash Course Computer Science #28

1,452 views / 1 likes - added 6 years ago

Today we start a three episode arc on the rise of a global telecommunications network that changed the world forever. We’re going to begin with computer networks, and how they grew from small groups of connected computers on LAN networks to eventually lar
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The Heart, Part 2 - Heart Throbs: Crash Course A&P #26

1,170 views / 1 likes - added 8 years ago

Today we're talking the heart and heart throbs -- both literal and those of the televised variety. Hank explains how your heart’s pacemaker cells use leaky membranes to generate their own action potentials, and how the resulting electricity travels throug
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Smart Tattoos & Tiny Robots: Crash Course Engineering #37

326 views / 0 likes - added 4 years ago

This week we are exploring biodevices and the part they play in the healthcare world. Well look at the challenges of implantable biodevices, like biocompatibility, power and connectivity, packaging, structural design, delivery systems, and device manageme
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How A Meteorite Crash Ended The Age Of Dinosaurs | Life Of Earth From Space

357 views / 1 likes - added 4 years ago

Experts detail and speculate how a meteorite crash contributed towards the extinction of dinosaurs on planet Earth. Subscribe to Discovery UK for more great clips:http://www.youtube.com/subscription_center?add_user=DiscoveryTVFollow Discovery UK on Twitte
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Programming Languages: Crash Course Computer Science #11

671 views / 0 likes - added 7 years ago

Get your first two months of Curiosity Stream free by going to http://curiositystream.com/crashcourse and using the promo code “crashcourse”. So we ended last episode with programming at the hardware level with things like plugboards and huge panels of sw
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Symbolic AI: Crash Course AI #10

352 views / 0 likes - added 4 years ago

Today we're going to talk about Symbolic AI - also known as "good old-fashioned AI". Symbolic AI is really different from the modern neural networks we've discussed so far, instead, it represents problems using symbols and then uses logic to search for so
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World War II Civilians and Soldiers: Crash Course European History #39

426 views / 0 likes - added 4 years ago

Our look at World War II continues with a closer examination of just how the war impacted soldiers in the field, and the people at home. For many of the combatants, the homefront and the warfront were one and the same. The war disrupted life for millions
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Make an AI sound like a YouTuber (LAB): Crash Course AI #8

321 views / 0 likes - added 4 years ago

Please take the PBS Digital Studios survey here! https://www.pbsresearch.org/c/r/CC_YTvideoFollow Along: https://colab.research.google.com/drive/1f8ik5kSPEvDCcM7R_-Wb3AjifizVEsHD Lets try to help John Green Bot sound a bit more like the real John Green us
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The New Deal: Crash Course US History #34

1,230 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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Board Games: Crash Course Games #14

713 views / 0 likes - added 7 years ago

Today, we’re going to talk about board games, but instead of trying to trace their histories, which we’ve already covered a bit of in ep2 on ancient games, we’re going to look really closely at just two board games - Monopoly and The Settlers of Catan. Th
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Integrated Circuits & Moore’s Law: Crash Course Computer Science #17

1,017 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 you may have heard of Moore's Law and while it isn't truly a law it has pretty closely estimated a trend we've
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Big Changes In The Big Forest: Crash Course Kids #38.2

819 views / 1 likes - added 8 years ago

What do beavers, termites, and prairie dogs have in common? They all change their environments! Last time we talked about how humans change their environments, but humans are animals and all animals change their environments just by living in them. Watch
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The Birth of the Feature Film: Crash Course Film History #6

753 views / 0 likes - added 7 years ago

Movies didn't always look like they do now. There was a period (kind of a problematic one) where movies transitioned from short novelties to big, epic, feature films. That's our focus this week as Craig talks to us about the birth of the feature film and
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PLANE CRASH IN 360 - BOOKCRAFT VR

783 views / 5 likes - added 7 years ago

Here's the third 360 Bookcraft video! Plane crash episode: https://www.youtube.com/watch?v=5pt2oi_gBMo Episode 1: https://www.youtube.com/watch?v=0JzMPG7pJ9M Episode 2: https://www.youtube.com/watch?v=JOD6FSTotfI&t=4s Bookcraft build team: https://www.you
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The Lives of Nonvascular Plants: Alternation of Generations - Crash Course Biology #36

1,396 views / 0 likes - added 9 years ago

Hank introduces us to nonvascular plants - liverworts, hornworts&mosses - which have bizarre features, kooky habits, and strange sex lives. Nonvascular plants inherited their reproductive cycle from algae, but have perfected it to the point where it i
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S.C.O.T.U.S. Procedures: Crash Course Government And Politics #20

647 views / 0 likes - added 9 years ago

This week Craig Benzine talks about what happens when a case makes it to the Supreme Court of the United States (or the SCOTUS). We're going to focus on court procedure today. We talk about how to petition to get your case heard, how written arguments, or
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AI Playing Games: Crash Course AI #12

420 views / 1 likes - added 4 years ago

As we mentioned last episode, one of the best test spaces for building new AI systems are games. This is because games provide a great framework for an AI to learn an objective and slowly improve. In recent years, AI has made huge strides in games from be
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Ecosystem Ecology: Links In The Chain - Crash Course Ecology #7

1,235 views / 1 likes - added 8 years ago

Hank brings us to the next level of ecological study with ecosystem ecology, which looks at how energy, nutrients, and materials are getting shuffled around within an ecosystem (a collection of living and nonliving things interacting in a specific place),
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Rethinking Civilization - Crash Course World History 201

753 views / 0 likes - added 9 years ago

In which John Green returns to teaching World History! This week, we'll be talking about the idea of civilization, some of the traditional hallmarks of so-called civilization, and why some people would choose to live outside the civilization model. It tur
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The Deep Future: Crash Course Big History #10

835 views / 2 likes - added 9 years ago

Finally, after what seems like eons and eons, the end is nigh. We're talking not only about the end of Crash Course Big History, but also the end of everything. The end of humanity and the end of the universe.John and Hank Green will teach you about what
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War&Human Nature: Crash Course World History 204

928 views / 2 likes - added 9 years ago

In which John Green teaches you about war! Specifically, John talks about whether humanity is naturally warlike, hard-wired to kill, or if perhaps war is a cultural construct. John will talk about the Hobbes versus Rousseau debate, the effects that war ha
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The Internet: Crash Course Computer Science #29

862 views / 0 likes - added 6 years ago

Today, we're going to talk about how the Internet works. Specifically, how that stream of characters you punch into your browser's address bar, like "youtube.com", return this very website. Just to clarify we're talking in a broader sense about that massi
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Catholic Counter-Reformation: Crash Course European History #9

461 views / 0 likes - added 4 years ago

When the Protestant Reformation broke out in Western Europe, the Catholic Church got the message, at least a little bit. Pope Paul III called a council to look into reforming some aspects of the Catholic Church and try to stem the tide of competing Christ
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Karl Popper, Science, And Pseudoscience: Crash Course Philosophy #8

719 views / 1 likes - added 8 years ago

The early 1900s was an amazing time for Western science, as Albert Einstein was developing his theories of relativity and psychology was born, as Sigmund Freud and psychoanalysis took over the scientific mainstream. Karl Popper observed these developments
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Ophelia, Gertrude, and Regicide - Hamlet II: Crash Course Literature 204

618 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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Drought and Famine: Crash Course World History #208

1,223 views / 0 likes - added 9 years ago

In which John Green teaches you a little bit about drought, which is a natural weather phenomenon, and famine, which is almost always the result of human activity. Throughout human history, when food shortages strike humanity, there was food around. There
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Changing the Blueprints of Life - Genetic Engineering: Crash Course Engineering #38

338 views / 0 likes - added 4 years ago

Can we change the blueprints of life? This week we are exploring that question with genetic engineering. Well discuss how selective breeding can improve agricultural practices, and the potential DNA-level engineering could have on other fields of engineer
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Water - Liquid Awesome: Crash Course Biology #2

1,648 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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04:57 Popular
Big Changes In The Big Apple: Crash Course Kids #38.1

782 views / 1 likes - added 8 years ago

Did you know that all living things change their environments? It's true. Beavers, deer, worms, and humans all change their environments. It just so happens that humans change our environments in big, obvious ways. In this episode, Sabrina chats about how
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Cryptography: Crash Course Computer Science #33

652 views / 0 likes - added 6 years ago

Today we’re going to talk about how to keep information secret, and this isn’t a new goal. From as early as Julius Caesar’s Caesar cipher to Mary, Queen of Scots, encrypted messages to kill Queen Elizabeth in 1587, theres has long been a need to encrypt a
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From the NASA Archives: The Crash in the Desert

302 views / 0 likes - added 4 years ago

In late 1984, NASA and the Federal Aviation Administration conducted a dramatic experiment in which they intentionally crashed a remote-controlled Boeing 720 passenger jet (filled with crash-test dummies) in the Mojave Desert. The NASA Ames Research Cente
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How to Engineer Health - Drug Discovery & Delivery: Crash Course Engineering #36

346 views / 0 likes - added 4 years ago

Engineers are problem solvers, and our own health is full of problems to be engineered. In this episode we discuss drug discovery and drug delivery. Well explore everything from classical and reverse pharmacology to the new field of synthetic biology. Wel
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Atari And The Business Of Video Games: Crash Course Games #4

863 views / 3 likes - added 8 years ago

Today, Andre is going to talk about the rise of Atari and with it the rise of the video game industry. So if you remember from last episode, we mentioned that the first arcade machine, Galaxy Game, happened to have a coin slot, but this was just the begin
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Cell Meiosis: Crash Course Biology #13

994 views / 0 likes - added 9 years ago

Hank gets down to the nitty gritty about meiosis, the special type of cell division that is necessary for sexual reproduction in eukaryotic organisms. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Compl
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The Personal Computer Revolution: Crash Course Computer Science #25

604 views / 3 likes - added 6 years ago

Today we're going to talk about the birth of personal computing. Up until the early 1970s components were just too expensive, or underpowered, for making a useful computer for an individual, but this would begin to change with the introduction of the Alta
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War&Expansion: Crash Course US History #17

646 views / 0 likes - added 9 years ago

In which John Green teaches you about the Mexican-American War in the late 1840s, and the expansion of the United States into the western end of North America. In this episode of Crash Course, US territory finally reaches from the Atlantic coast to the Pa
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WWI's Civilians, the Homefront, and an Uneasy Peace: Crash Course European History #34

411 views / 0 likes - added 4 years ago

World War I was a total war for millions of people in Europe. Many men were enlisted in the fighting, but the war work had implications for the daily lives of a huge number of Europeans. Women entered the workforce in huge numbers, and for a lot of people
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Things Fall Apart, Part 2: Crash Course Literature 209

664 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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Computer Vision: Crash Course Computer Science #35

668 views / 0 likes - added 6 years ago

Today we’re going to talk about how computers see. We’ve long known that our digital cameras and smartphones can take incredibly detailed images, but taking pictures is not quite the same thing. For the past half-century, computer scientists have been wor
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Tissues, Part 4 - Types of Connective Tissues: Crash Course A&P #5

1,656 views / 0 likes - added 9 years ago

•••SUBBABLE MESSAGE••• TO: the world. FROM: Laura Love Rathbun Learning is the best thing to do with your you! *** 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
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Four Spheres Part 2 (Hydro And Atmo): Crash Course Kids #6.2

1,358 views / 1 likes - added 9 years ago

The second part of our two part tale of the puzzle that is Earth. In this episode, Sabrina talks about the Hydrosphere and the Atmosphere and what is contained in each one. Let's dive in!!! This first series is based on 5th grade science. We're super exci
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How to make an AI read your handwriting (LAB) : Crash Course Ai #5

337 views / 0 likes - added 4 years ago

Follow along: https://colab.research.google.com/drive/1NyYH1EPpaJlMBLK0fcKYz4icaD1SNSLKJohn Green Bot wrote his first novel! Today, in our first ever Lab were going to program a neural network to recognize handwritten letters to convert the first part of
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Federalism: Crash Course Government and Politics #4

704 views / 0 likes - added 9 years ago

In which Craig Benzine teaches you about federalism, or the idea that in the United States, power is divided between the national government and the 50 state governments. Craig will teach you about how federalism has evolved over the history of the US, an
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Government Regulation: Crash Course Government And Politics #47

742 views / 2 likes - added 8 years ago

Today, we’re going to wrap up our discussion of economic policy by looking at government regulation. We're going to talk about the government's goals for the U.S. economy and the policies it employs to achieve those goals. Ever since the New Deal, we've s
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The Dark Ages...How Dark Were They, Really?: Crash Course World History #14

835 views / 1 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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Simple Animals: Sponges, Jellies,&Octopuses - Crash Course Biology #22

847 views / 0 likes - added 9 years ago

Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex molluscs, octopuses a
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Derivatives: Crash Course Physics #2

1,121 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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Everything, The Universe...And Life: Crash Course Astronomy #46

806 views / 1 likes - added 8 years ago

Here it is, folks: the end. In our final episode of Crash Course Astronomy, Phil gives the course a send off with a look at some of his favorite topics and the big questions that Astronomy allows us to ask. Thank you for watching. -- Crash Course Astronom
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Moon Phases: Crash Course Astronomy #4

1,973 views / 6 likes - added 9 years ago

In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases. -- Why the Moon Has Phases 0:36.1 Spheres in Orbit 1:05.4 Name of the Moon Phases 2:25.5 How We See It 7:48.2 -- PBS Digital Studios: http://youtube
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The Holocaust,Genocides, and Mass Murder of WWII: Crash Course European History #40

547 views / 2 likes - added 4 years ago

During World War II, Nazi Germany undertook the imprisonment and summary execution of many of its own citizens, and citizens of the nations they occupied. One of the groups that came under assault was the European Jewish population. More than six million
11:54 Popular
The Rise of the West and Historical Methodology: Crash Course World History #212

909 views / 2 likes - added 9 years ago

In which John Green talks about the methods of writing history by looking at some of the ways that history has been written about the rise of the West. But first he has to tell you what the West is. And then he has to explain the Rise of the West. And the
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The Electron: Crash Course Chemistry #5

979 views / 0 likes - added 9 years ago

Hank brings us the story of the electron and describes how reality is a kind of music, discussing electron shells and orbitals, electron configurations, ionization and electron affinities, and how all these things can be understood via the periodic table.
11:39 Popular
Slavery, Ghosts, and Beloved: Crash Course Literature 214

736 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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How To Speak Chemistrian: Crash Course Chemistry #11

656 views / 0 likes - added 9 years ago

Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native. Table of Contents Determining Formulas and Names of Monatom
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How a Bill Becomes a Law: Crash Course Government and Politics #9

794 views / 1 likes - added 9 years ago

Oh my, Craig has his work cut out for him this week. The process of how a bill becomes a law can be pretty complex, fraught with potential bill-death at every corner. As if just getting through committee isn’t difficult enough, bills have to navigate a se
13:53 Popular
George HW Bush and the End of the Cold War: Crash Course US History #44

970 views / 2 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
11:52 Popular
Playstation And More Immersive Video Games: Crash Course Games #9

1,154 views / 5 likes - added 8 years ago

So by the mid-90s the video game industry was once again booming and this attracted the attention of the Japanese electronics giant Sony. In 1994, Sony introduced their Playstation console which successfully coupled cutting edge technologies with some gre
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Islam and Politics: Crash Course World History 216

1,115 views / 0 likes - added 9 years ago

In which John Green teaches you about how Islam has interacted with politics during it's history, and how it continues to do so today. Islamist movements are in the news a lot lately, but how did that happen. John will point out that Islam has alway been
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Congressional Elections: Crash Course Government and Politics #6

673 views / 0 likes - added 9 years ago

This week Craig Benzine talks about the importance of elections. But he isn’t going to focus on presidential elections, but instead those of the strongest part of our government: congressional elections. Craig will talk about the frequency of elections in
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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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The History of Atomic Chemistry: Crash Course Chemistry #37

1,056 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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Naked Eye Observations: Crash Course Astronomy #2

673 views / 0 likes - added 9 years ago

Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye. -- Table of Contents: Naked Eye Observations 0:28.4 Constellations 3:09.7 The Color of Stars 2:44.5 View of the
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Boolean Logic & Logic Gates: Crash Course Computer Science #3

1,251 views / 0 likes - added 7 years ago

Today, Carrie Anne is going to take a look at how those transistors we talked about last episode can be used to perform complex actions. With the just two states, on and off, the flow of electricity can be used to perform a number of logical operations, w
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Light: Crash Course Astronomy #24

1,664 views / 0 likes - added 8 years ago

In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object’s temperature, dens
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Life Begins: Crash Course Big History #4

884 views / 1 likes - added 9 years ago

In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the ways that they dev
Whats the Most Animal Animal? Crash Course Zoology #2

253 views / 2 likes - added 3 years ago

Thank you to The Great Courses Plus for supporting PBS. For more information and a trial, go tohttp://ow.ly/zREQ30rDCDz. Picture an animal in your mind right now. What does it look like? A dog? A lion? Maybe a sloth, pangolin,naked mole-rat, or even just
09:05 Popular
The Bicameral Congress: Crash Course Government and Politics #2

709 views / 0 likes - added 9 years ago

In which Craig Benzine teaches you about the United States Congress, and why it's bicameral, and what bicameral means. Craig tells you what the Senate and House of Representatives are for, some of the history of the institutions, and reveal to you just ho
11:37 Popular
Christianity from Judaism to Constantine: Crash Course World History #11

862 views / 2 likes - added 9 years ago

In which John Green teaches you the history of Christianity, from the beginnings of Judaism and the development of monotheism, right up to Paul and how Christianity stormed the Roman Empire in just a few hundred years. Along the way, John will cover Abram
11:18 Popular
The Poetry of Sylvia Plath: Crash Course Literature 216

727 views / 2 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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Kinetics: Chemistry's Demolition Derby - Crash Course Chemistry #32

639 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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Congressional Leadership: Crash Course Government and Politics #8

653 views / 0 likes - added 9 years ago

This week Craig Benzine explores the leadership structure of congress. We’ll break out the clone machine to examine the responsibilities of the speaker of the house, the majority and minority leaders as well as the majority and minority whips in both the
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World War II Part 1: Crash Course US History #35

1,500 views / 6 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
11:55 Popular
Ancient Egypt: Crash Course World History #4

1,583 views / 9 likes - added 9 years ago

In which John covers the long, long history of ancient Egypt, including the Old, Middle and New Kingdoms, and even a couple of intermediate periods. Learn about mummies, pharaohs, pyramids and the Nile with John Green. Crash Course World History is now av
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Terrorism, War, and Bush 43: Crash Course US History #46

872 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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The Anthropocene and the Near Future: Crash Course Big History #9

689 views / 1 likes - added 9 years ago

In which John Green, Hank Green, and Emily Graslie teach you about the Anthropocene, an unofficial geological era that covers the last century or so, in which humanity has made massive progress. We've discovered the Higgs-Boson particle, and awesome elect
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Conflict in Israel and Palestine: Crash Course World History 223

867 views / 1 likes - added 9 years ago

In which John Green teaches you about conflict in Israel and Palestine. This conflict is often cast as a long-term beef going back thousands of years, and rooted in a clash between religions. Well, that's not quite true. What is true is that the conflict
11:55 Popular
To Kill a Mockingbird, Part I - Crash Course Literature 210

766 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
11:55 Popular
Partial Pressures&Vapor Pressure: Crash Course Chemistry #15

726 views / 0 likes - added 9 years ago

This week we continue to spend quality time with gases, more deeply investigating some principles regarding pressure - including John Dalton's Law of Partial Pressures, vapor pressure - and demonstrating the method for collecting gas over water. Table of
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The Nucleus: Crash Course Chemistry #1

922 views / 1 likes - added 9 years ago

Hank does his best to convince us that chemistry is not torture, but is instead the amazing and beautiful science of stuff. Chemistry can tell us how three tiny particles - the proton, neutron and electron - come together in trillions of combinations to f
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The Persians&Greeks: Crash Course World History #5

672 views / 0 likes - added 9 years ago

In which John compares and contrasts Greek civilization and the Persian Empire. Of course we're glad that Greek civilization spawned modern western civilization, right? Maybe not. From Socrates and Plato to Darius and Xerxes, John explains two of the grea
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Heredity: Crash Course Biology #9

843 views / 0 likes - added 9 years ago

Hank and his brother John discuss heredity via the gross example of relative ear wax moistness. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook! http:/
13:35 Popular
Fate, Family, and Oedipus Rex: Crash Course Literature 202

801 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
12:20 Popular
The Seven Years War: Crash Course World History #26

1,473 views / 6 likes - added 9 years ago

In which John teaches you about the Seven Years War, which may have lasted nine years. Or as many as 23. It was a very confusing was. The Seven Years War was a global war, fought on five continents, which is kind of a lot. John focuses on the war as it ha
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Solutions: Crash Course Chemistry #27

705 views / 0 likes - added 9 years ago

This week, Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity, molality, and mass percent. Also, why polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar solutes. All that plus
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Langston Hughes&the Harlem Renaissance: Crash Course Literature 215

876 views / 3 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
12:51 Popular
Population, Sustainability, and Malthus: Crash Course World History 215

1,144 views / 0 likes - added 9 years ago

In which John Green teaches you about population. So, how many people can reasonably live on the Earth? Thomas Malthus got it totally wrong in the 19th century, but for some reason, he keeps coming up when we talk about population. In 1800, the human popu
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Your Immune System: Natural Born Killer - Crash Course Biology #32

920 views / 0 likes - added 9 years ago

Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCour
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Race, Class, and Gender in To Kill a Mockingbird: Crash Course Literature 211

725 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
10:35 Popular
What Is Philosophy?: Crash Course Philosophy #1

1,027 views / 0 likes - added 8 years ago

Today Hank begins to teach you about Philosophy by discussing the historical origins of philosophy in ancient Greece, and its three main divisions: metaphysics, epistemology, and value theory. He will also introduce logic, and how you’re going to use it t
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Congressional Committees: Crash Course Government and Politics #7

703 views / 0 likes - added 9 years ago

This week Craig Benzine clears up the role of committees in Congress. We’ll talk about standing committees, joint committees, conference committees, and caucuses (and not the candidate-choosing kinds) as well as the staff agencies that help advise these c
11:33 Popular
The Renaissance: Was it a Thing? - Crash Course World History #22

1,172 views / 1 likes - added 9 years ago

In which John Green teaches you about the European Renaissance. European learning changed the world in the 15th and 16th century, but was it a cultural revolution, or an evolution? We'd argue that any cultural shift that occurs over a couple of hundred ye
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Acid-Base Reactions in Solution: Crash Course Chemistry #8

1,421 views / 0 likes - added 9 years ago

Last week, Hank talked about how stuff mixes together in solutions. Today, and for the next few weeks, he will talk about the actual reactions happening in those solutions - atoms reorganizing themselves to create whole new substances in the processes tha
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Nonviolence and Peace Movements: Crash Course World History 228

868 views / 1 likes - added 9 years ago

In which John Green teaches you about nonviolence and peace movements in the 20th century. What is nonviolence? What is a peace movement? Well. traditionally, humans often resort to violence when they come into conflict. In the 20th century, it became muc
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How Engineering Robots Works: Crash Course Engineering #33

486 views / 0 likes - added 4 years ago

In this episode we looked at robots and the engineering principles of robots. We learned how robots use sensors to interpret their environment, how actuators and effectors allow a robot to manipulate the objects around it to accomplish a task, and how com
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If One Finger Brought Oil - Things Fall Apart part I: Crash Course Literature 208

693 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
10:31 Popular
Mansa Musa and Islam in Africa: Crash Course World History #16

873 views / 0 likes - added 9 years ago

In which John Green teaches you about Sub-Saharan Africa! So, what exactly was going on there? It turns out, it was a lot of trade, converting to Islam, visits from Ibn Battuta, trade, beautiful women, trade, some impressive architecture, and several empi
12:36 Popular
A Brief History Of The Universe: Crash Course Astronomy #44

955 views / 0 likes - added 8 years ago

Thanks to the wonders of physics, astronomers can map a timeline of the universe’s history. Today, Phil’s going to give you an overview of those first few minutes (yes, MINUTES) of the universe’s life. It started with a Big Bang, when the Universe was inc
09:35 Popular
Indus Valley Civilization: Crash Course World History #2

894 views / 1 likes - added 9 years ago

In which John Green teaches you about the Indus Valley Civilization, one of the largest of the ancient civilizations. John teaches you the who, how, when, where and why of the Indus Valley Civilization, and dispenses advice on how to be more successful in
11:13 Popular
Redox Reactions: Crash Course Chemistry #10

1,133 views / 0 likes - added 9 years ago

All the magic that we know is in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from atom to atom, they c
08:57 Popular
Constitutional Compromises: Crash Course Government and Politics #5

798 views / 1 likes - added 9 years ago

In which Craig Benzine teaches you about the compromises met in ratifying the U.S. Constitution. The United State’s didn’t always have its current system of government. Actually, this is it’s second attempt. Craig will delve into the failures (and few suc
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The History of Chemical Engineering: Crash Course Engineering #5

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Today well cover the fourth and final of our core disciplines of engineering: chemical engineering. Well talk about its history and evolution going from soda ash competitions to oil refineries and renewable energies. Well also discuss some newer and emerg
13:55 Popular
Globalization II - Good or Bad?: Crash Course World History #42

755 views / 0 likes - added 9 years ago

In which John asks whether globalization is a net positive for humanity. While the new global economy has created a lot of wealth, and lifted a lot of people out of poverty, it also has some effects that aren't so hot. Wealth disparity, rising divorce rat
08:31 Popular
Separation of Powers and Checks and Balances: Crash Course Government and Politics #3

1,698 views / 2 likes - added 9 years ago

In which Craig Benzine teaches you about the US Governments Separation of powers and the system of checks and balances. In theory, the Legislative Branch, the Executive Branch, and the Judicial Brach are designed to keep each other in check, and to keep a
14:09 Popular
Biological Molecules - You Are What You Eat: Crash Course Biology #3

1,542 views / 0 likes - added 9 years ago

Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCou
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13:46 Popular
Imperialism: Crash Course World History #35

2,310 views / 0 likes - added 9 years ago

In which John Green teaches you about European Imperialism in the 19th century. European powers started to create colonial empires way back in the 16th century, but businesses really took off in the 19th century, especially in Asia and Africa. During the
15:07 Popular
Progressive Presidents: Crash Course US History #29

734 views / 1 likes - added 9 years ago

In which John Green teaches you about the Progressive Presidents, who are not a super-group of former presidents who create complicated, symphonic, rock soundscapes that transport you into a fantasy fugue state. Although that would be awesome. The preside
12:07 Popular
A Long and Difficult Journey, or The Odyssey: Crash Course Literature 201

757 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
11:33 Popular
The Crusades - Pilgrimage or Holy War?: Crash Course World History #15

990 views / 0 likes - added 9 years ago

In which John Green teaches you about the Crusades embarked upon by European Christians in the 12th and 13th centuries. Our traditional perception of the Crusades as European Colonization thinly veiled in religion isn't quite right. John covers the First
12:26 Popular
Black Holes: Crash Course Astronomy #33

942 views / 3 likes - added 8 years ago

We’ve covered a lot of incredible stuff, but this week we’re talking about the weirdest objects in space: BLACK HOLES. Stellar mass black holes form when a very massive star dies, and its core collapses. The core has to be more than about 2.8 times the Su
12:26 Popular
The Roman Empire. Or Republic. Or...Which Was It?: Crash Course World History #10

1,063 views / 1 likes - added 9 years ago

In which John Green explores exactly when Rome went from being the Roman Republic to the Roman Empire. Here's a hint: it had something to do with Julius Caesar, but maybe less than you think. Find out how Caesar came to rule the empire, what led to him ge
11:45 Popular
Ideal Gas Problems: Crash Course Chemistry #13

935 views / 0 likes - added 9 years ago

We don't live in a perfect world, and neither do gases - it would be great if their particles always fulfilled the assumptions of the ideal gas law, and we could use PV=nRT to get the right answer every time. Unfortunately, the ideal gas law (like our cul
11:35
Real Gases: Crash Course Chemistry #14

577 views / 0 likes - added 9 years ago

Hank bursts our ideal gas law bubble, er, balloon, and brings us back to reality, explaining how the constants in the gas law aren't all that constant; how the ideal gas law we've spent the past two weeks with has to be corrected for volume because atoms
12:31 Popular
The Railroad Journey and the Industrial Revolution: Crash Course World History 214

753 views / 2 likes - added 9 years ago

In which John Green teaches you about railroads, and some of the ways they changed the world, and how they were a sort of microcosm for the Industrial Revolution as a whole. Prior to the invention of steam powered railroads, pretty much all locomotion had
11:14 Popular
The Milky Way: Crash Course Astronomy #37

791 views / 0 likes - added 8 years ago

Today we’re talking about our galactic neighborhood: The Milky Way. It’s a disk galaxy, a collection of dust, gas, and hundreds of billions of stars, with the Sun located about halfway out from the center. The disk has grand spiral patterns in it, formed
12:09 Popular
The Columbian Exchange: Crash Course World History #23

1,033 views / 0 likes - added 9 years ago

In which John Green teaches you about the changes wrought by contact between the Old World and the New. John does this by exploring the totally awesome history book "The Columbian Exchange" by Alfred Cosby, Jr. After Columbus "discovered" the Americas, Eu
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PTSD and Alien Abduction - Slaughterhouse-Five Part 2: Crash Course Literature 213

669 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
09:47 Popular
Tides: Crash Course Astronomy #8

1,100 views / 1 likes - added 9 years ago

Today Phil explores the world of tides! What is the relationship between tides and gravity? How do planets and their moons become tidally locked? What would happen if you were 300km tall? Important questions. -- Gravity Over Distance 0:44 Tidal Force Para
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Dark Matter: Crash Course Astronomy #41

623 views / 1 likes - added 8 years ago

Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe isn’t all there is. Galaxies and other large structures in the universe are created and shifted by a force we detect mostly indirect
07:21 Popular
Humans and Energy: Crash Course World History 207

1,108 views / 1 likes - added 9 years ago

In which Stan Muller subs for John Green and teaches you about energy and humanity. Today we discuss the ideas put forth by Alfred Crosby in his book, Children of the Sun. Historically, almost all of the energy that humans use has been directly or indirec
10:46 Popular
Polar&Non-Polar Molecules: Crash Course Chemistry #23

1,024 views / 1 likes - added 9 years ago

*** PLEASE WATCH WITH ANNOTATIONS ON! SOME INACCURACIES IN GRAPHICS ARE NOTED AND CORRECTED IN ANNOTATIONS. THANKS! *** Molecules come in infinite varieties, so in order to help the complicated chemical world make a little more sense, we classify and cate
15:15 Popular
Deep Time: Crash Course Astronomy #45

733 views / 0 likes - added 8 years ago

As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered. Stars will die out after a few trillion years, protons will decay and matter will dissolve after a thousand trillion trillion trillion ye
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What Is Statistics: Crash Course Statistics #1

564 views / 0 likes - added 6 years ago

Welcome to Crash Course Statistics! In this series we're going to take a look at the important role statistics play in our everyday lives, because statistics are everywhere! Statistics help us better understand the world and make decisions from what you'l
09:03 Popular
Lab Techniques&Safety: Crash Course Chemistry #21

937 views / 0 likes - added 9 years ago

Hank takes a break from the desk to bring you to the lab in order to demonstrate some important points about the practical side of chemistry - experimentation in the laboratory. You'll learn what to wear in the lab, how to dispose of chemicals safely, how

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