Crash Course
The Spanish Golden Age: Crash Course Theater #19
This week on Crash Course Theater, Mike and Yorick take us to beautiful Spain, and look at its Golden Age. Spain was having kind of a moment in the 16th and 17th centuries. They had this big empire, the culture was really flowering, and...
TED-Ed
TED-Ed: The rise and fall of the Celtic warriors | Philip Freeman
One summer evening in 335 BCE, Alexander the Great was resting by the Danube River when a band of strangers approached his camp. Alexander had never seen anything like these tall, fierce-looking warriors with huge golden neck rings and...
TED-Ed
TED-ED: How does impeachment work? - Alex Gendler
For most jobs, it's understood that you can be fired _ whether for crime, incompetence, or just poor performance. But what if your job happens to be the most powerful position in the country _ or the world? That's where impeachment comes...
SciShow Kids
Let’s Make Oobleck!
Jessi's in the lab, mixing up something kind of strange: Oobleck! Come find out all about this goo that can be a solid and a liquid at the same time, and then learn how to make some for yourself!
TED-Ed
TED-Ed: The rise and fall of the Kingdom of Man | Andrew McDonald
On a small island in the Irish Sea, fortresses preside over the rugged shores. This unlikely location was the birthplace of a medieval empire that lasted 200 years. Rulers built coastal fortresses on cliffs, roved the seaways, and threw...
TED-Ed
TED-Ed: Why tragedies are alluring - David E. Rivas
The story goes something like this: A royal, rich, or righteous individual - who is otherwise a lot like us - makes a mistake that sends his or her life spiraling into ruin. It's the classic story arc for a Greek tragedy, and we love it...
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,...
SciShow
Calendars, Codes & Virgins: 3 Myths About the Maya
Hank talks about the Maya, and helps dispel some myths about their historic civilization, revealing how, ultimately, they were just like us: smart, flawed, and awesome.
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...
TED-Ed
TED-Ed: How the Normans changed the history of Europe - Mark Robinson
In the year 1066, 7,000 Norman infantry and knights sailed in warships across the English Channel. Their target: England, home to more than a million people . Around the same period of time, other groups of Normans were setting forth all...
SciShow
7 Animals That Aren't What We Call Them
Picking common and scientific names is a puzzle of taxonomy, and sometimes we end up naming huge frogs "Mountain Chickens". So, let's figure out this puzzle.
Crash Course
Martin Luther King, Jr: Crash Course Black American History
Today we're going to learn about perhaps the best-known leader in the Civil Rights Era, Martin Luther King, Jr. From his rise to notoriety during the Montgomery Bus Boycott in 1955, his leadership of the Southern Christian Leadership...
TED-Ed
TED-ED: The real story behind Archimedes' Eureka! - Armand D'Angour
When you think of Archimedes' Eureka moment, you probably imagine a man in a bathtub, right? As it turns out, there's much more to the story. Armand D'Angour tells the story of Archimedes' biggest assignment -- an enormous floating...
TED-Ed
TED-Ed: The biggest mistakes in mapmaking history | Kayla Wolf
For thousands of years, people made both functional maps and what are known as cosmographies, illustrating the earth and its position in the cosmos, often including constellations, gods, and mythic locations. These maps were meant to...
TED-Ed
TED-Ed: The first and last king of Haiti | Marlene Daut
The royal couple of Haiti rode into their coronation to thunderous applause. After receiving his ornate crown, Henry Christophe ascended his throne, towering 20 meters in the air. But little did the cheering onlookers know that the first...
Be Smart
Why Does February Have 28 Days?
Why does February only get 28 days when all the other months get 30 or 31? The answer is part superstition, part politics, and parts astronomy. Basically, it's the Romans' fault.
MinuteEarth
The Best Worst Energy Source
Although coal is such an amazing energy source that we've kept using it despite the harm it causes, today we may be better poised to stop using it than at any previous time in history.
TED-Ed
TED-Ed: Can you solve the cheating royal riddle? | Dan Katz
You're the chief advisor to an eccentric king who needs to declare his successor. He wants his heir to be good at arithmetic, lucky, and above all else, honest. So he's devised a competition to test his children, and ordered you to...
TED-Ed
TED-Ed: Can you solve the Alice in Wonderland riddle? | Alex Gendler
After many adventures in Wonderland, Alice has once again found herself in the court of the temperamental Queen of Hearts. She's about to pass through the garden undetected, when she overhears the king and queen arguing that 64 is the...
Crash Course
Intro to Algorithms: Crash Course Computer Science
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...
TED-Ed
TED-ED: What caused the French Revolution? - Tom Mullaney
What rights do people have, and where do they come from? Who gets to make decisions for others, and on what authority? And how can we organize society to meet people's needs? Tom Mullaney shows how these questions challenged an entire...
TED-Ed
TED-Ed: The dark history of the overthrow of Hawaii | Sydney Iaukea
On January 16th, 1895, two men arrived at Liliʻuokalani's door, arrested her, and imprisoned her. The Missionary Party had recently seized power and now confiscated her diaries, ransacked her house, and claimed her lands. Liliʻuokalani...
TED-Ed
TED-Ed: The hidden treasures of Timbuktu | Elizabeth Cox
On the edge of the vast Sahara desert, citizens snuck out of the city of Timbuktu and took to the wilderness. They buried chests in the desert sand, hid them in caves, and sealed them in secret rooms. Inside these chests was a treasure...