TED-Ed
TED-Ed: How is power divided in the United States government? - Belinda Stutzman
Articles I-III of the United States Constitution allow for three separate branches of government (legislative, executive, and judicial), along with a system of checks and balances should any branch get too powerful. Belinda Stutzman...
TED-Ed
TED-ED: Why should you read "Macbeth"? - Brendan Pelsue
There's a play so powerful that an old superstition says its name should never be uttered in a theater. A play that begins with witchcraft and ends with a bloody, severed head. A play filled with riddles, prophecies, nightmare visions,...
TED-Ed
TED-Ed: A brief history of numerical systems - Alessandra King
1, 2, 3, 4, 5, 6, 7, 8, 9 and 0. With just these ten symbols, we can write any rational number imaginable. But why these particular symbols? Why ten of them? And why do we arrange them the way we do? Alessandra King gives a brief history...
TED Talks
TED: An interactive map to track (and end) pollution in China | Ma Jun
China has pledged to be carbon neutral by 2060 -- and its citizens are helping industries across the country reach that goal. Environmentalist Ma Jun introduces the Blue Map, an app that empowers people to report pollution violations in...
Crash Course
Absolute Monarchy: Crash Course European History
So far, the rulers of Europe have been working to consolidate their power and expand their kingdoms, and this is it. The moment they've been working toward: Absolute Monarchy. We're going to learn about how kings and queens became...
Crash Course
Samurai, Daimyo, Matthew Perry, and Nationalism Crash Course World History
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...
SciShow
These 100-Million-Year-Old Microbes Are Still Alive!
Researchers have found ancient communities of microbes that have been buried deep, for a hundred million years! This discovery might be the oldest living thing on Earth, and could even expand the search for life on other planets.
Crash Course
Thomas Jefferson & His Democracy Crash Course US History
In which John Green teaches you about founding father and third president of the United States, Thomas Jefferson. Jefferson is a somewhat controversial figure in American history, largely because he, like pretty much all humans, was a...
TED Talks
TED: How India could pull off the world's most ambitious energy transition | Varun Sivaram
India has a historic opportunity to power its industrialization with clean energy -- and its energy choices will make or break the world's fight against climate change, says clean energy executive, physicist and author Varun Sivaram....
Crash Course
The Future of Clean Energy: Crash Course Engineering #31
This week we are exploring alternative energy sources. We'll look at how biomass can be burned as a fuel source, how hydrogen can be used in a fuel cell to generate electrical power, and how nuclear fission provides power to the grid....
TED Talks
TED: What it takes to make change | Jacqueline Novogratz
What can you do to build a better world? Sharing stories from her pioneering career dedicated to tackling poverty, Jacqueline Novogratz offers three principles to spark and sustain a moral revolution. Learn how you can commit (or...
Crash Course
Iran's Revolutions: Crash Course World History 226
In which John Green teaches you about Iran's Revolutions. Yes, revolutions plural. What was the1979 Iranian Revolution about? It turns out, Iran has a pretty long history of unrest in order to put power in the hands of the people, and...
MinuteEarth
This Atom Can Predict The Future
Many of the bewildering correlations in our world - like that between Beryllium-7 and the Asian monsoon - are a result of huge and unseen forces that tie them together.
TED-Ed
TED-Ed: Pazit Cahlon and Alex Gendler: What "Machiavellian" really means
From Shakespeare's plays to modern TV dramas, the unscrupulous schemer for whom the ends always justify the means has become a familiar character type we love to hate. For centuries, we've had a single word to describe such characters:...
Bozeman Science
Renewable Energy
In this video Paul Andersen discusses the technology, advantages and disadvantages of six sources of renewable energy; biomass, hydroelectric, solar, geothermal wind, and hydrogen. He also explains how changes in the storage and flow of...
SciShow
Can Danger Give You Super Strength?
Have you ever heard that you become more powerful in life-or-death situations? There are a lot of anecdotes about super strength, but is it a real thing?
TED Talks
TED: The origins of blackface and Black stereotypes | Dwan Reece
If you're wondering why blackface -- mimicking people of African descent via stereotypes and makeup-darkened skin -- is a big deal, then perhaps a little history lesson can help demystify the outcry. Dwan Reece, curator at the National...
Crash Course
Decolonization and Nationalism Triumphant Crash Course World History
In which John Green teaches you about the post-World War II breakup of most of the European empires. As you'll remember from previous installments of Crash Course, Europeans spent several centuries sailing around the world creating...
Crash Course
Programming Basics: Statements & Functions: Crash Course Computer Science
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...
SciShow
Why Haven't We Built a Better Battery?
Improving batteries is a tough problem, but it’s also an important one because in many ways the future of our planet also depends on the future of batteries. Luckily, scientists are on the case, figuring out ways to give this essential...
SciShow
The World's First Human-Made Nuclear Reactor
Today on SciShow, Hank brings us a little science history, telling us the tale of the world's first human-made nuclear reactor, which was built by a team of scientists and students led by Enrico Fermi in a converted squash court under a...
TED Talks
Elon Musk: The mind behind Tesla, SpaceX, SolarCity ...
Entrepreneur Elon Musk is a man with many plans. The founder of PayPal, Tesla Motors and SpaceX sits down with TED curator Chris Anderson to share details about his visionary projects, which include a mass-marketed electric car, a solar...
SciShow
How Paintings Help You See the World Differently
Emerging research suggests that paintings might be more than just pretty pictures: how we process what we see in paintings might also impact the way we process the world around us.
SciShow
3 Amazing Photosynthetic Animals
Hank's love affair with plants takes a slight hit now that he's learned about several animal species that can photosynthesize. Fortunately, he's excited enough about these animals to share them with all of us! Let SciShow introduce you...