This learning video uses a simple analog setup to explore why earthquakes …
This learning video uses a simple analog setup to explore why earthquakes are so unpredictable. The setup is simple enough that students should be able to assemble and operate it on their own with a teacher's supervision. The teaching approach used in this module is known as the 5E approach, which stands for Engagement, Exploration, Explanation, Elaboration, and Evaluation. Over the course of this lesson, the basic mechanisms that give rise to the behavior of the simple analog system are explained, and further elaboration helps the students to apply their understanding of the analog system to complex fault systems that cause earthquakes
Whether in a desert, the savanna, or a tropical rainforest, plants have …
Whether in a desert, the savanna, or a tropical rainforest, plants have an important role in the ecological processes of Earth’s biomes. In this episode of Crash Course Botany, we’ll explore these different living locales, the effects of climate change on them, and how our photosynthetic friends make the world go ‘round.
Chapters: Backpacking Across Earth Types of Biomes Plants' Role in Biomes How Climate Change Affects Biomes Is Planting Trees the Answer? Protecting Earth's Biomes Review & Credits Credits
It’s one thing to say a business is carbon neutral. It’s another …
It’s one thing to say a business is carbon neutral. It’s another to be able to truly account for that carbon at all stages of the production process. In this episode of Crash Course Climate and Energy, we’ll take a look at efforts to count all those greenhouse gas emissions, reduce them, and capture the ones we can’t avoid.
Chapters: Introduction: Carbon Neutrality Defining Biofuels Ethanol Carbon Accounting & Greenwashing Cellulosic Biofuels Carbon Capture Storing & Using Carbon The Future of Carbon Emissions Review & Credits Credits
From the cars that take us downtown to the airplanes that fly …
From the cars that take us downtown to the airplanes that fly us across the globe, transportation is one of the most visible and personal ways we are impacting the Earth’s climate. In this episode of Crash Course Climate and Energy, we’ll explore the benefits and challenges of electric vehicles, and look at some of the ways we’re trying to decarbonize much larger modes of transportation.
Chapters: Introduction: Decarbonizing Transportation Greenhouse Gas Emissions from Transportation Electric Vehicles Designing Pedestrian-Friendly Cities Reducing Emissions From Trucks, Ships, & Planes Review & Credits Credits
Humans have come up with some clever ways of keeping cool when …
Humans have come up with some clever ways of keeping cool when it's warm, and staying warm when it’s cool. But unfortunately, our heating and air conditioning systems are worsening the climate crisis. In this episode of Crash Course Climate and Energy, we’ll take a look at some of the ways we might be able to decarbonize those systems to reduce the amount of greenhouse gases they produce.
Chapters: Introduction: Heating Without Fossil Fuels Fracking & Natural Gas The Problem of Heating with Coal Cooling Without Fossil Fuels Heat Pumps for Heating & Cooling Alternative Fuels for Low-Carbon Heating Review & Credits Credits
Nearly a third of all our greenhouse gas emissions come from generating …
Nearly a third of all our greenhouse gas emissions come from generating electricity. Scientists agree that we have to find ways to make electricity without releasing so much carbon dioxide into the air. In this episode of Crash Course Climate and Energy, we’re going to tell you about some of the ways scientists and engineers are decarbonizing the electricity supply with energy sources such as solar, wind, nuclear, and hydroelectric and the benefits and drawbacks of each.
Chapters: Introduction: Decarbonizing Electricity Electricity From Solar & Wind Power Challenges of Solar & Wind Power Hydroelectric Power Nuclear Power Why Carbon-Free Electricity Matters Review & Credits Credits
When outbreaks happen, we need to be able to predict the course …
When outbreaks happen, we need to be able to predict the course they’ll take in the future, but of course we can’t run experiments on real people to figure that out. Thankfully we can simulate outbreaks and use models to find out how different scenarios could play out! In this episode of Crash Course Outbreak Science, we’ll look at what models are, how they help predict the course of an outbreak, and how we can use them to manage real world outbreaks.
What does it mean for a river to be a person? An …
What does it mean for a river to be a person? An ancestor, even? In this episode of Crash Course Religions, we’ll learn how Indigenous religious traditions’ emphasis on place, kinship, and diverse spirits challenge the dominant assumptions of the Western worldview. Chapters: Introduction: The Whanganui River Indigenous Religion? Indigenous Beliefs Kinship The Importance of Place Law & Resistance Review & Credits Credits
John Green teaches you about Voltaire's hugely important Enlightenment novel, Candide. Candide …
John Green teaches you about Voltaire's hugely important Enlightenment novel, Candide. Candide tells a pretty wild story, but for the most part, it's about the best of all possible worlds. Which, spoiler alert, doesn't seem to be the best of all possible worlds. Voltaire's novel is a pretty frank look at Enlightenment philosophy that finds a lot of the thinking of the time wanting. It's also got lots of sex, death, and travel!
By now you know your way around a basic DC circuit. You’ve …
By now you know your way around a basic DC circuit. You’ve learned how to simplify circuits with resistors connected in series and parallel with a single battery source. But a lot of the real-world circuits that you encounter — and will have to describe — are much more complicated. For example, what happens when there are MULTIPLE batteries, connected in ‘parallel’? And what happens when we add ‘capacitors’ into the mix, with resistors in our DC circuits? On this, our last go-round inside a DC circuit, we’ll encounter junctions, loops, and capacitors! --
Just like many great duos throughout history, Bulgaria and Germany have a …
Just like many great duos throughout history, Bulgaria and Germany have a fascinating (though uneven) relationship. In today’s episode, we’re going to take a closer look at the impact of politics on economies as we trace this history of Bulgaria and Germany following World War II, and examine the ways capitalism, and communism, impacted their economic strength today.
In this course, we will seek to interpret capitalism using ideas from …
In this course, we will seek to interpret capitalism using ideas from biological evolution: firms pursuing varied strategies and facing extinction when those strategies fail are analogous to organisms struggling for survival in nature. For this reason, it is less concerned with ultimate judgment of capitalism than with the ways it can be shaped to fit our more specific objectives for the natural environment, public health, alleviation of poverty, and development of human potential in every child. Each book we read will be explicitly or implicitly an argument about good and bad consequences of capitalism.
In which John Green teaches you about capitalism and socialism in a …
In which John Green teaches you about capitalism and socialism in a way that is sure to please commenters from both sides of the debate. Learn how capitalism arose from the industrial revolution, and then gave rise to socialism. Learn about how we got from the British East India Company to iPhones and consumer culture in just a couple of hundred years. Stops along the way include the rise of industrial capitalism, mass production, disgruntled workers, Karl Marx, and the Socialist Beard. The socialist reactions to the ills of capitalism are covered as well, and John discusses some of the ideas of Karl Marx, and how they've been implemented or ignored in various socialist states. Plus, there are robots!
Chapters: Introduction: Capitalism What is Industrial Capitalism? How did Industrial Capitalism begin? Capitalism Increased Productivity Capitalism as a Cultural System Criticisms of Capitalism Socialism An Open Letter to Karl Marx's Beard Karl Marx's Ideology Socialism vs. Industrial Capitalism Today Credits
In which John Green teaches you about the Vereenigde Oostindische Compagnie, doing …
In which John Green teaches you about the Vereenigde Oostindische Compagnie, doing business as the VOC, also known as the Dutch East India Company. In the 16th and 17th centuries, the Dutch managed to dominate world trade, and they did all through the pioneering use of corporations and finance. Well, they did also use some traditional methods like violently enforced monopolies, unfair trade agreements, and plain old warfare. You'll learn how the Dutch invented stuff like joint stock corporations, maritime insurance, and futures trading. Basically, how the Dutch East India Company crashed the US economy in 2008. I'm kidding. Or am I?
This art history video discussion examines Caravaggio's "Calling of St. Matthew," oil …
This art history video discussion examines Caravaggio's "Calling of St. Matthew," oil on canvas, c. 1599-1600 (Contarelli Chapel, San Luigi dei Francesi, Rome).
This art history video discussion examines Caravaggio's "Death of the Virgin," 1605-06, …
This art history video discussion examines Caravaggio's "Death of the Virgin," 1605-06, Oil on canvas, 12 feet, 10 inches x 8 feet (369 x 245 cm) (Musee du Louvre, Paris). Painted for the altar of a family chapel in the church of Santa Maria della Scala del Trastevere, Rome.
Despite the diverse appearance and characteristics of organisms on Earth, the chemicals …
Despite the diverse appearance and characteristics of organisms on Earth, the chemicals that make up living things are remarkably similar, often identical. In this episode of Crash Course Biology, we’ll look at the building blocks of the four major classes of biomolecules, how those join up to form macromolecules, and how a team of six atoms forms the vast majority of living matter.
Chapters: Introduction to Life’s Molecules Chemical Bonds The Major Biological Molecules Polymerization Hydrolysis Review & Credits Credits
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