PBS
Is Twitter the Newest Form of Literature?
Everyone is familiar with Twitter, the uber-popular micro-blogging site, which limits the user to 140 characters. The tweet is perfect for sharing your favorite links and updating the world about your life, but it might also be the...
Crash Course
Alexander the Great and the Situation ... the Great Crash Course World History
In which you are introduced to the life and accomplishments of Alexander the Great, his empire, his horse Bucephalus, the empires that came after him, and the idea of Greatness. Is greatness a question of accomplishment, of impact, or...
Crash Course
The Yellow Wallpaper: Crash Course Literature 407
Today on Crash Course Literature, John Green teaches you about The Yellow Wallpaper, by Charlotte Perkins Gilman. The Yellow Wallpaper tells the story of a woman who is a prisoner in her own home, in the name of caring for her mental...
TED Talks
Adam Savage: How simple ideas lead to scientific discoveries
Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and...
Crash Course
The Handmaid's Tale, Part 1: Crash Course Literature 403
In which John Green teaches you about Margaret Atwood's speculative fiction novel, The Handmaid's Tale. John looks at some of the themes in this classic dystopian novel, many of which are kind of a downer. The world of Gilead that Atwood...
Crash Course
Air Travel and The Space Race: Crash Course History of Science
Like the Industrial or the Einsteinian Revolution, the Space Race is a trope, or way of organizing historical events into a story that makes sense. In this story, the two great powers that emerged after World War Two—the United States...
Crash Course
Biotechnology: Crash Course History of Science
The history of discovering what DNA is, what it looks like, and how it works is... complicated. But, in this episode of History of Science, Hank Green does his best to lay out the basics so we can understand the beginnings of Biotechnology.
Crash Course
The Atomic Bomb: Crash Course History of Science
The story picks up where we left off last time, with Einstein writing the president of his new homeland, the United States, urging him to build a nuclear weapon before Hitler. This is the tale of the most destructive force humans have...
Crash Course
Newton and Leibniz: Crash Course History of Science
The standard story of the Scientific Revolution culminates with the long life of one man: Sir Isaac Newton—a humble servant of the Royal Mint, two-time parliamentarian, and a scientific titan whose name, along with Einstein’s, is...
SciShow Kids
How Do Submarines Work?
Jessi and Squeaks got a question about how submarines go underwater and explore, so Squeaks did some research!
Crash Course
Ragnarok: Crash Course World Mythology
Ragnarok! It's the end of the world, Norse style. It's got everything you want in an apocalypse. Earthquakes, destruction, armies of the dead, a giant evil wolf, giants with flaming swords, and a kind of happy ending. It's got it all....
Be Smart
Where Did Humans Come From?
In part 1 of our special series on human ancestry, we tour through our family tree to meet our ancestors and distant cousins, and to find out what made us human along the way. The story of human ancestry is not a simple progression from...
Crash Course
Muscles, part 1 - Muscle Cells: Crash Course A&P
We're kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contracting and releasing in a process called the...
SciShow
Will-o'-the-Wisps and 5 Other Mysteries Science Can Explain
The world doesn't have to be shrouded in mystery to be fascinating! Here are 6 mysteries that science has managed to solve. Chapters View all 1 THE KENTUCKY MEAT SHOWER 2:35 EASTER ISLAND HATS 3:18 EARTHQUAKE LIGHTS 5:53 4 SAILING STONES...
TED-Ed
TED-ED: Why should you read James Joyce's "Ulysses"? - Sam Slote
James Joyce's "Ulysses" is widely considered to be both a literary masterpiece and one of the hardest works of literature to read. It inspires such devotion that once a year, thousands of people all over the world dress up like the...
Crash Course
Big History 1 Preview
n 10 episodes John Green, Hank Green, and Emily Graslie teach you about, well, everything. It’s Big History! This course will take you on a whirlwind journey from the creation to the death of the universe and is based on the Big History...
Crash Course
Just Say Noh. But Also Say Kyogen: Crash Course Theater #11
This week on Crash Course Theater, Mike is taking you to Japan to have a look at Noh theater. Noh, and its counterpart Kyogen are some of the most revered theater forms in Japan, and are still performed today. Today you'll learn how Noh...
Crash Course
The Big Bang Crash Course Big History 1
In which John Green, Hank Green, and Emily Graslie teach you about, well, everything. Big History is the history of everything. We're going to start with the Big Bang, take you right through all of history (recorded and otherwise), and...
TED Talks
TED: How humanity doubled life expectancy in a century | Steven Johnson
Doubling human life expectancy in a century is our greatest achievement, says author Steven Johnson. How did we make it happen -- and can we keep it going? Backed by fascinating historical anecdotes, he shares some life-lengthening...
Crash Course
Their Eyes Were Watching God: Crash Course Literature 301
In which John Green reads Zora Neale Hurston's novel, "Their Eyes Were Watching God," and talks to you about it. You'll learn about Zora Neale Hurston's life, and we'll also look at how the interpretations of the book have changed over...
SciShow
Why Space Over South America is Deadly for Satellites
There's a region of Earth's atmosphere known as the South Atlantic Anomaly, and it’s one of the most dangerous near-Earth areas of space, both for satellites and humans.
TED Talks
TED: This is your brain on communication | uri Hasson
Neuroscientist uri Hasson researches the basis of human communication, and experiments from his lab reveal that even across different languages, our brains show similar activity, or become "aligned," when we hear the same idea or story....
SciShow
Weird Places Blood Falls
In our continuing series on Earth's weirdest places, Hank describes the crazy place in Antarctica known as Blood Falls in all its scientifically strange majesty.
PBS
From the Cambrian Explosion to the Great Dying
The first era of our current eon, the Paleozoic Era, is probably the most deceptively fascinating time in Earth's history. With near constant revolutions in life, punctuated by catastrophic extinctions, it is also one of the most chaotic.