TED-Ed
TED-Ed: What happened when the United States tried to ban alcohol | Rod Phillips
On January 17, 1920, less than one hour after spirits had become illegal throughout the United States, armed men robbed a Chicago freight train and made off with thousands of dollars worth of whiskey. It was a first taste of the...
Crash Course
The Enlightenment: Crash Course European History
So far in this series, we've covered a lot of war, disease, climate disaster, and some more war. Well, prepare yourself for something a little more positive. This week, we're talking about the Enlightenment. In this video, you'll learn...
Crash Course
Conflict in Israel and Palestine through 2015: Crash Course World History #223
In which John Green teaches you about conflict in Israel and Palestine. This conflict is often cast as a long-term beef going back thousands of years, and rooted in a clash between religions. Well, that's not quite true. What is true is...
Crash Course
Introduction to the Solar System
In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today.
Crash Course
Community Ecology II: Predators - Crash Course Ecology
Hank gets to the more violent part of community ecology by describing predation and the many ways prey organisms have developed to avoid it.
TED-Ed
TED-Ed: How farming planted seeds for the Internet - Patricia Russac
What does farming have to do with invention and innovation? Permanent residences, division of labor, central government, and complex technologies--all essential for advancing civilizations--could not have been developed without the move...
TED-Ed
TED-Ed: The secret student resistance to Hitler - Iseult Gillespie
Learn the story of the WWII student resistance group, called the White Rose, fighting against Hitler in Nazi Germany. -- In 1943, Allied aircraft rained tens of thousands of leaflets on Nazi Germany below. The leaflets urged readers to...
Crash Course
Galaxies, part 1
The Milky Way is our neighborhood in the universe. It’s a galaxy and there are many others out there. Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes: elliptical, spiral, peculiar, and irregular....
Crash Course
Ancient Games: Crash Course Games
From the ancient Egyptian game of Senet to the Aztec's Patolli, games have been played since the beginning of civilization. Today, your host Andre Meadows is going to take a look at a few of these games, including some that are actually...
Crash Course
Polymers - Crash Course Chemistry
Did you know that Polymers save the lives of Elephants? Well, now you do! The world of Polymers is so amazingly integrated into our daily lives that we sometimes forget how amazing they are. Here, Hank talks about how they were developed...
MinuteEarth
Why Is Lyme Disease Getting Worse?
Thanks to the University of Minnesota for sponsoring this video! Lyme disease is spreading like wildfire around the world: here's why. ___________________________________________ If you liked this week’s video, you might also like:...
TED-Ed
The material that could change the world... for a third time | TED-Ed
Today roads, sidewalks, bridges, and skyscrapers are made of a material called concrete. There's three tons of it for every person on Earth. It's also played a surprisingly large role in rising global temperatures over the last century....
Be Smart
The Surprising Origin of Thanksgiving Foods
Ever wonder where your favorite Thanksgiving foods come from? Well the truth may be closer to home than you think.
Be Smart
Beavers: The Smartest Things in Fur Pants
Beavers have done more to shape North American landscapes than any animal beside humans. We don't notice them much today because there aren't many left, but before colonization, North America was home to hundreds of millions of these...
TED Talks
TED: Why we're storing billions of seeds | Jonathan Drori
In this brief talk from TED U 2009, Jonathan Drori encourages us to save biodiversity -- one seed at a time. Reminding us that plants support human life, he shares the vision of the Millennium Seed Bank, which has stored over 3 billion...
TED Talks
TED: Walk with Little Amal, a theatrical journey celebrating the refugee experience | Amir Nizar Zuabi
In a staggering display of creativity and community, theater director Amir Nizar Zuabi introduces "The Walk": a theatrical journey following a nine-year-old refugee girl named Amal (represented by a giant, lifelike puppet) as she makes...
TED Talks
John La Grou: A plug for smart power outlets
John La Grou unveils an ingenious new technology that will smarten up the electrical outlets in our homes, using microprocessors and RFID tags. The invention, Safeplug, promises to prevent deadly accidents like house fires -- and to...
Bozeman Science
r and K selection
Paul Andersen explains the differences between an r and a K selected species. He starts with a brief description of population growth noting the importance of; r or growth rate, N or number of individuals in the population, and K the...
Crash Course Kids
Orbits are Odd
Last week we talked about the orbits of the Earth and our Moon. But today we're going to go a little bigger... well, a lot better. Did you know that there is a massive Black Hole at the center of our Galaxy? Or that Pluto's orbit is...
TED Talks
Read Montague: What we're learning from 5,000 brains
Mice, bugs and hamsters are no longer the only way to study the brain. Functional MRI (fMRI) allows scientists to map brain activity in living, breathing, decision-making human beings. Read Montague gives an overview of how this...
SciShow Kids
Check Out the Great Barrier Reef!
Barrier reefs are home to all kinds of amazing animals, but did you know that the coral itself is an animal? Join Jessi and Squeaks to learn all about coral and the longest coral reef in the world, The Great Barrier Reef!
TED Talks
Nathan Wolfe: The jungle search for viruses
Virus hunter Nathan Wolfe is outwitting the next pandemic by staying two steps ahead: discovering deadly new viruses where they first emerge -- passing from animals to humans among poor subsistence hunters in Africa -- before they claim...
TED Talks
TED: The enchanting music of sign language | Christine Sun Kim
Artist and TED Fellow Christine Sun Kim was born deaf, and she was taught to believe that sound wasn't a part of her life, that it was a hearing person's thing. Through her art, she discovered similarities between American Sign Language...
TED-Ed
TED-ED: How did Polynesian wayfinders navigate the Pacific Ocean? - Alan Tamayose and Shantell De Silva
Imagine setting sail from Hawaii in a canoe. Your target is a small island thousands of kilometers away in the middle of the Pacific Ocean - a body of water that covers more than 160 million square kilometers. For thousands of years,...