SciShow
Cicada Symbiosis | SciShow Talk Show
Dr. John McCutcheon is here to educate Hank about just how weird cicadas can be, and Jessi brings by a couple of crabby (but cute) guests.
Crash Course
World War II: Crash Course World History
In which John Green teaches you about World War II, aka The Great Patriotic War, aka The Big One. So how did this war happen? And what does it mean? We've all learned the facts about World War II many times over, thanks to repeated...
Crash Course
Sula: Crash Course Literature
This week, John is talking about Toni Morrison's novel of friendship, betrayal, and loss, Sula. Sula tells the story of two African American girls, the town where they grew up, the tragic even that was central to their youth, and the...
SciShow
Why Are Marine Mammals So Big
Marine mammals are famously large, but why is that? And is there a polar bear-sized sea otter in our future?
TED Talks
TED: 3 questions to ask yourself about US citizenship | Jose Antonio Vargas
At age 16, journalist and filmmaker Jose Antonio Vargas found out he was in the United States illegally. Since then, he's been thinking deeply about immigration and what it means to be a US citizen -- whether it's by birth, law or...
TED Talks
TED: Save the oceans, feed the world! | Jackie Savitz
What's a marine biologist doing talking about world hunger? Well, says Jackie Savitz, fixing the world's oceans might just help to feed the planet's billion hungriest people. In an eye-opening talk, Savitz tells us what’s really going on...
TED-Ed
TED-Ed: A day in the life of an ancient Peruvian shaman
The year is 1400 BCE. At the temple of the fisherman, the morning is unusually still and this is just the latest in a series of troubling signs for Quexo, the village shaman. The villagers live off the sea, but this year the winds have...
Crash Course
What is Urban Planning? Crash Course Geography
Today we’re going to talk about urban planning — which is the design and regulation of space within urban areas. Urban planning helps weave together economic, social, and environmental goals within a region from work, to play, and...
SciShow
Turns Out, Spiders Use Electricity to Fly
Apparently some species of spiders can fly… and it turns out they don’t even need the wind to do it.
SciShow
The Ups and Downs of Air Turbulence
Ever wonder why sometimes the airplane you're flying on decides to lurch suddenly and cause your little baggie of peanuts to spill all over the place? Join Hank on SciShow today as he explores the in and outs and the ups and downs of...
Crash Course Kids
A Change of Scenery
The world changes. It really does! But sometimes it changes so slowly that we don't notice it. Other times it changes REALLY FAST!!! In this episode of Crash Course Kids, Sabrina talks about some of the reasons things can change quickly...
TED Talks
TED: Climate change isn't a distant threat -- it's our reality | Selina Neirok Leem
Every year, ocean levels rise and high tides flood the low-lying Marshall Islands in the Pacific, destroying homes, salinating water supplies and disrupting livelihoods. In a stirring poem and talk, youth climate warrior Selina Neirok...
TED-Ed
TED-Ed: How fiction can change reality - Jessica Wise
Reading and stories can be an escape from real life, a window into another world -- but have you ever considered how new fictional experiences might change your perspective on real, everyday life? From Pride and Prejudice to Harry...
TED Talks
TED: The world in 2200 | Pete Alcorn
In this short, optimistic talk from TED2009, Pete Alcorn shares a vision of the world of two centuries from now -- when declining populations and growing opportunity prove Malthus was wrong.
TED Talks
TED: The silent drama of photography | Sebastião Salgado
Economics PhD Sebastião Salgado only took up photography in his 30s, but the discipline became an obsession. His years-long projects beautifully capture the human side of a global story that all too often involves death, destruction or...
TED-Ed
TED-ED: History through the eyes of the potato - Leo Bear-McGuinness
Baked or fried, boiled or roasted, as chips or fries; at some point in your life you've probably eaten a potato. But potatoes have played a much more significant role in our history than just that of the dietary staple we have come to...
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...
TED Talks
TED: My quest to defy gravity and fly | Elizabeth Streb
Over the course of her fearless career, extreme action specialist Elizabeth Streb has pushed the limits of the human body. She's jumped through broken glass, toppled from great heights and built gizmos to provide a boost along the way....
SciShow
Why Do Our Bones Make Our Blood?
Our bones are multi-functional body builders, but perhaps their most mysterious function is the production of blood. Scientists now think they have a pretty good idea why this is where our blood gets made.
TED Talks
How technology changes our sense of right and wrong | Juan Enriquez
What drives society's understanding of right and wrong? In this thought-provoking talk, futurist Juan Enriquez offers a historical outlook on what humanity once deemed acceptable -- from human sacrifice and public executions to slavery...
SciShow
The Science of the World's Most Colorful Corn
Don't be fooled! The yellow or white corn you see in the grocery store is only the tip of the rainbow-colored iceberg of corn coloration. And these more genetically diverse varieties of corn might just save our husks one day.
SciShow
How Can We Clean Up the Oceans?
Plastic is a huge problem in the oceans, but engineers and research groups are working on how to deal with it. Hank describes some of the leading proposed solutions.
SciShow
5 of the Strangest Prehistoric Crocs
Over the years, scientists have found evidence for a lot of weird prehistoric animals, but some of the strangest have been the crocodyliformes! Chapters MOURASUCHUS: THE WHALE CROCS 1:26 KAPROSUCHUS: THE BOAR CROC 3:21 ARMADILLOSUCHUS:...
TED-Ed
TED-Ed: How to defeat a dragon with math - Garth Sundem
Having trouble remembering the order of operations? Let's raise the stakes a little bit. What if the future of your (theoretical) kingdom depended on it? Garth Sundem creates a world in which PEMDAS is the hero but only heroic when in...