Crash Course
The Columbian Exchange Crash Course World History
In which John Green teaches you about the changes wrought by contact between the Old World and the New. John does this by exploring the totally awesome history book "The Columbian Exchange" by Alfred Cosby, Jr. After Columbus...
SciShow Kids
Frog or Toad?
Frogs are really cool! They can jump high, swim fast, and their skin is super slimy! But frogs have some less-slimy, less-hoppy relatives that are just as cool: toads! Join Jessi and squeaks to learn the big and little differences...
Crash Course
The Plate Tectonics Revolution: Crash Course Geography
Today we're going to tell the story of a quiet revolution in the 1960s that shifted our entire understanding of how the Earth works. We currently believe that the Earth's broken outer shell rises from the mantle and folds back in - kind...
Crash Course
Affirmative Action: Crash Course Government and Politics
So we've been talking about civil rights for the last few episodes now, and we're finally going to wrap this discussion up with the rather controversial topic of affirmative action. We'll explain what exactly affirmative action is, who...
SciShow
How Can It Be Too Hot To Fly?
How does heat affect airplanes? Turns out heat, speed and density connect to create dangerous situations.
SciShow Kids
Why Different Soils Feel Different
Squeaks and Mister Brown do some experiments with soil, and learn all about why different soils feel different! Disciplinary Core Ideas: PS1.A: Structure and Properties of Matter - Matter can be described and classified by its observable...
SciShow Kids
Migrations: Big Animal Trips
Have you ever moved? Some animals move too! And if an animal moves from one place to another for weather or food, it's called migration!
TED-Ed
TED-Ed: Are we living in a simulation? | Zohreh Davoudi
All life on Earth— living and inanimate, microscopic and cosmic— is governed by mathematical laws with apparently arbitrary constants. And this opens up a question: If the universe is completely governed by these laws, couldn't a...
SciShow
How the Space Shuttle Atlantis Changed Space Exploration
From launching probes to ferrying experiment racks to the ISS, the Space Shuttle Atlantis has left quite the legacy on space exploration and scientific research.
Crash Course
The Death and Resurrection of Theater as...Liturgical Drama: Crash Course Theater #8
As the Roman Empire fell, so did the theater. If there's anyone who hates theater and actors more than Romans, it's early Christians. As Christianity ascended in the west, theater declined. But, fear not. This isn't the end of the...
Crash Course
Thespis, Athens, and The Origins of Greek Drama: Crash Course Theater #2
This week on Crash Course Theater, Mike is acting like theater started in Greece. Well, for the western theater, this is true. The earliest recorded drama in the west arose in Athen, and these early plays grew out or religious ritual....
Crash Course
Why So Angry, German Theater? Crash Course Theater #27
Theater had a slow start in Germany, mainly because Germany wasn't really a thing until *relatively* recent times. After Germany finally became a unified state, it had a couple of really important theatrical movements. Today we'll talk...
Crash Course
Papers & Essays: Crash Course Study Skills
Writing research papers is an essential skill in your career as a student, and this week we're going to help you do that like a pro. From figuring out where to begin, to finding the best systems, to breaking out of the research recursion...
SciShow Kids
Explore the Rainforest! Ecology for Kids
It's raining where Jessi and Squeaks live, so they decided to bust out some books and read up on a special kind of forest where it rains almost every day!
SciShow
What Happens to an Email After You Click "Send"?
Email is one of the most essential things to our life. But do you actually know what happens when you click the "send" button, and how it's sent to your friends?
Be Smart
Illuminating the Universe: The History of Light
Beyond what we can touch, taste, smell, and hear, we experience the universe through light. But how did we come to discover light, and how did we learn light's true nature, as the fastest thing in the universe, an electromagnetic...
SciShow Kids
Save the Snowman! Engineering for Kids
Squeaks built Jessi a snowman! But, now Jessi and Squeaks need to save it from melting!
Bozeman Science
LS1C - Matter and Energy Flow in Organisms
Sustaining life requires substantial energy and matter inputs. The complex struc- tural organization of organisms accommodates the capture, transformation, trans- port, release, and elimination of the matter and energy needed to sustain...
TED Talks
TED: Two nerdy obsessions meet -- and it's magic | David Kwong
David Kwong is a magician who makes crossword puzzles -- in other words, a pretty nerdy guy. And for his next trick ...
Crash Course
All Night Demon Dance Party - Kathakali: Crash Course Theater #24
This week, we're headed back to India to learn about the all night dance shows that culminate in killing a Demon (metaphorically): Kathakali! This form arose in the Kerala region of India, and tells traditional Indian stories, but with...
TED-Ed
TED-ED: The myth behind the Chinese zodiac - Megan Campisi and Pen-Pen Chen
What's your sign? In Western astrology, it's a constellation determined by when your birthday falls in the calendar. But according to the Chinese zodiac (__), it's your shuxiang, meaning the animal assigned to your birth year. And of the...
SciShow Kids
Make Your Own Recycled Bird Feeders - #sciencegoals
Jessi's on spring break, but Dino's here to teach you about birds and how you can recycle items around the house to make bird feeders! #sciencegoals
SciShow
Weird Places Göreme National Park
There are a lot of weird places on Earth and our new series will explore some of the weirdest. Today Hank takes us to Göreme National Park in Turkey so we can learn about this region's fascinating geological history and about the people...
Be Smart
Life by the Numbers
How successful are we compared to other species? It turns out that biomass, or what things weigh, can be more important than how many of something there are. Find out how our numbers stack up against everything from bugs to bacteria, and...