SciShow
Will We Ever be Able to Predict Earthquakes?
Here on SciShow, we’ve talked quite a bit about how difficult it is to predict earthquakes, and how we prepare for them. So today, let’s take a tour of earthquake science!
Bozeman Science
Ecosystem Change
Paul Andersen explains how ecosystems change over time. He starts by explaining how global climate change will impacts ecosystems around the planet. He then discusses how continental drift created climatic changes that impacted mammal...
TED Talks
David Logan: Tribal leadership
David Logan talks about the five kinds of tribes that humans naturally form -- in schools, workplaces, even the driver's license bureau. By understanding our shared tribal tendencies, we can help lead each other to become better...
Crash Course
American Imperialism Crash Course US History
In which John Green teaches you about Imperialism. In the late 19th century, the great powers of Europe were running around the world obtaining colonial possessions, especially in Africa and Asia. The United States, which as a young...
TED-Ed
TED-Ed: An unsung hero of the civil rights movement - Christina Greer
Learn about the life of Bayard Rustin, a leader in the Civil Rights Movement, a gay rights activist, and one of Martin Luther King’s closest advisors. -- In 1963, Martin Luther King Jr. delivered his “I Have a Dream” speech at the March...
TED Talks
Robert Ballard: The astonishing hidden world of the deep ocean
Ocean explorer Robert Ballard takes us on a mindbending trip to hidden worlds underwater, where he and other researchers are finding unexpected life, resources, even new mountains. He makes a case for serious exploration and mapping....
Crash Course
Revolutions of 1848: Crash Course European History
In 1848, Europe experienced a wave of revolutions. Last week we covered some of the reform movements that presaged these uprisings. This week, we're learning about what the people wanted from the revolutions, who was involved, and how...
SciShow
You Don’t Need to Worry About Yellowstone (or Any Other Supervolcano)
You’ve probably heard that the supervolcano under Yellowstone National Park is a ticking time bomb ready to go off at any time. But as it turns out, volcanologists aren't too worried about it.
TED Talks
Katharine Hayhoe: The most important thing you can do to fight climate change: talk about it
How do you talk to someone who doesn't believe in climate change? Not by rehashing the same data and facts we've been discussing for years, says climate scientist Katharine Hayhoe. In this inspiring, pragmatic talk, Hayhoe shows how the...
Crash Course
Civil Rights and the 1950s Crash Course US History
In which John Green teaches you about the early days of the Civil Rights movement. By way of providing context for this, John also talks a bit about wider America in the 1950s. The 1950s are a deeply nostalgic period for many Americans,...
Crash Course
World War II Part 1 Crash Course US History
In which John Green teaches you about World War II, a subject so big, it takes up two episodes. This week, John will teach you how the United States got into the war, and just how involved America was before Congress actually declared...
TED Talks
The Great Migration and the power of a single decision
Sometimes, a single decision can change the course of history. Join journalist and author Isabel Wilkerson as she tells the story of the Great Migration, the outpouring of six million African Americans from the Jim Crow South to cities...
Crash Course
18th Century Warfare: Crash Course European History
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...
TED Talks
TED: Why aren't there more Native American restaurants? | Sean Sherman
When you think of North American cuisine, do Indigenous foods come to mind? Chef Sean Sherman serves up an essential history lesson that explains the absence of Native American culinary traditions across the continent, highlighting why...
Crash Course
The Progressive Era Crash Course US History
In which John Green teaches you about the Progressive Era in the United States. In the late 19th and early 20th century in America, there was a sense that things could be improved upon. A sense that reforms should be enacted. A sense...
TED-Ed
TED-Ed: The secret society of the Great Dismal Swamp | Dan Sayers
Straddling Virginia and North Carolina is an area that was once described as the "most repulsive of American possessions." By 1728, it was known as the Great Dismal Swamp. But while many deemed it uninhabitable, recent findings suggest...
Crash Course
America in World War I Crash Course US History
In which John Green teaches you about American involvement in World War I, which at the time was called the Great War. They didn't know there was going to be a second one, though they probably should have guessed, 'cause this one didn't...
TED Talks
Jay Walker: The world's English mania
Jay Walker explains why two billion people around the world are trying to learn English. He shares photos and spine-tingling audio of Chinese students rehearsing English -- "the world's second language" -- by the thousands.
Crash Course
What's all the Yellen About? Monetary Policy and the Federal Reserve: Crash Course Economics
This week on Crash Course Economics, we're talking about monetary policy. The reality of the world is that the United States (and most of the world's economies) are, to varying degrees, Keynesian. When things go wrong, economically, the...
Crash Course
Civil Rights & Liberties: Crash Course Government
Today, Craig is going to give you an overview of civil rights and civil liberties. Often these terms are used interchangeably, but they are actually very different. Our civil liberties, contained in the Bill of Rights, once only...
TED Talks
Eli Pariser: What obligation do social media platforms have to the greater good?
Social media has become our new home. Can we build it better? Taking design cues from urban planners and social scientists, technologist Eli Pariser shows how the problems we're encountering on digital platforms aren't all that new --...
TED Talks
TED: Cities are driving climate change. Here's how they can fix it | Angel Hsu
Cities pump out 70 percent of all global carbon emissions -- which means they also have the greatest opportunity to lower CO2 levels and energy consumption. Climate and data scientist Angel Hsu shares how cities around the world are...
TED-Ed
TED-Ed: What really happened during the Salem Witch Trials
You’ve been accused of a crime you did not commit. It’s impossible to prove your innocence. If you insist that you’re innocent anyway, you’ll likely be found guilty and executed. But if you confess, apologize, and implicate others,...
Crash Course
Capitalism and Socialism Crash Course World History
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...