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Pbs Learning Media: Crash Course Artificial Intelligence: Robotics #11
Robots aren't like humans who can do a lot of different things. They're designed for very specific tasks like vacuuming our homes, assembling cars in a factory, or exploring the surface of other planets. Today, we're going to take a look...
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Pbs Learning Media: Crash Course Government and Politics: Party Systems
Throughout most of the United States history, our political system has been dominated by a two-party system, but the policies and groups that support these parties have changed over time. There have been five, arguably six, party systems...
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Pbs Learning Media: Crash Course Government and Politics: Judicial Review
In this episode, we discuss 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 and...
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Pbs Learning Media: Crash Course Government and Politics: Interest Groups
In this episode, we discuss money in politics and special interest groups, and the role they play in the U.S. political system. Special interest groups are groups of individuals that make policy-related appeals to government - like the...
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Pbs Learning Media: Crash Course Ecology: Community Ecology Ii: Predators
Hank gets to the more aggressive part of community ecology by describing predation and the many ways prey organisms have developed to avoid it. [10:22]
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Pbs Learning Media: Crash Course Astronomy: The Gravity of the Situation
Learn how gravity plays out across the universe. In this episode, the forces of gravity at home and in space are explored. Gravity accelerates things that have mass. Objects that move along a path controlled by gravity are said to be in...
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Pbs Learning Media: Crash Course Artificial Intelligence: Web Search #17
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 index, and measuring stuff like click through and bounce back to figure out what you want to see. They...
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Pbs Learning Media: Crash Course Anatomy and Physiology: Tissues, Part 1
In this episode, Hank provides a brief history of histology and introduces the different types and functions of your body's tissues. [10:42]
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Pbs Learning Media: Crash Course Government and Politics: Election Basics
There are a lot of people in the U.S, and holding individual issues up to a public vote doesn't seem particularly plausible. To deal with this complexity, we vote for people, not policies, that represent our best interests. But as you'll...
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Pbs Learning Media: Crash Course Astronomy: Dark Energy, Cosmology Part 2
The majority of the universe is made up of a currently mysterious entity that pervades space: dark energy. We don't know exactly what it is, but we do know that dark energy accelerates the expansion of space. We think this means the...
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Pbs Learning Media: Crash Course Artificial Intelligence: Symbolic Ai #10
This type of AI is used broadly in video games and in expert systems like those that manage inventory at grocery stores and set rates at insurance companies. We'll show you how we represent symbols and their relations, teach you how to...
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Pbs Learning Media: Crash Course Government and Politics: Media Regulation
Today we wrap up our discussion of the media by talking about how the government interacts with and influences the content we see. Now it may be easy to assume that because we live in a free-market capitalist society, the only real...
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Pbs Learning Media: Crash Course Government and Politics: Equal Protection
In this episode, we discuss the most important part of the Constitution-the Fourteenth Amendment. In particular, we discuss the "equal protection" clause and how it relates to our civil rights. We've discussed in previous episodes civil...
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Pbs Learning Media: Crash Course Anatomy and Physiology: Hearing & Balance
Continue on a journey through the sensory systems with a look at how your sense of hearing works. We follow sounds as they work there way into the ear, where they are registered and transformed into action potentials. This mechanism not...
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Pbs Learning Media: Crash Course Astronomy: The Big Bang, Cosmology Part 1
Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly its expanding also allows us to run the clock backwards 14 billion years to the way the...
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Pbs Learning Media: Crash Course Government and Politics: Media Institution
So today we're going to look at the rather thorny issue of the media and its role in politics. Whether you're talking about older forms of media like newspapers and radio or newer forms like television and the Internet, all media serves...
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Pbs Learning Media: Crash Course Government and Politics: How Voters Decide
Like all decision-making, voter decisions are influenced by a multitude of factors, but the three we are going to focus on in this episode are party loyalty, the issues involved in an election, and candidate characteristics. This all...
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Pbs Learning Media: Crash Course Government and Politics: Political Parties
In this episode, we discuss political parties and their role in American politics. When most people think about political parties, they associate them with the common ideologies of the voters and representatives within that party, but...
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Pbs Learning Media: Crash Course Government and Politics: Freedom of Speech
Free speech not only allows you to critique the government, but it also protects you from the government. It is essential to remember that not all speech is protected equally under the first amendment, and just because you have a right...
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Pbs Learning Media: Crash Course Astronomy: A Brief History of the Universe
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...
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Pbs Learning Media: Crash Course Us History: Who Won the American Revolution
John Green teaches you about the American Revolution. John will teach you about the major battles of the war, and discuss the strategies on both sides. Everyone is familiar with how this war played out for the Founding Fathers; they got...
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Pbs Learning Media: Crash Course Us History: The Clinton Years, or the 1990s
In which John Green teaches you about the United States as it was in the 1990s. You'll remember from last week that the old-school Republican George H.W. Bush had lost the 1992 presidential election to a young upstart Democrat from...
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Pbs Learning Media: Crash Course Government and Politics: Search and Seizure
The fourth amendment says that you have the right to be protected against "unreasonable searches and seizures," but what does that mean, exactly? Well, it's complicated. The police often need warrants issued with proof of probable cause,...
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Pbs Learning Media: Crash Course Government and Politics: Judicial Decisions
Learn about the factors that influence judicial decisions. The supreme court handed down some pretty big decisions on same-sex marriage (in Obergefell v. Hodges) and the Affordable Care Act (in King v. Burwell). It's important to...