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...

Conflict is an unavoidable part of any relationship. But what if the point of arguing isn't to win, but rather to grow from the experience? Facilitator Darya Shaikh presents a powerful framework for managing conflicts, showing how you...

Drawing on her research into the science of play, evolutionary biologist Carole K. Hooven delves into how testosterone impacts the body and brain, interacting with culture to create differences in human behavior — starting with why boys...

Can conflict actually bring you and your partner closer? It depends on how you fight, say Julie and John Gottman, the world's leading relationship scientists. They share why the way couples fight can predict the future of their...

A flourishing democracy next door is a scary thing for an autocrat, says Ukrainian historian Olesya Khromeychuk. Detailing the history of Ukraine's long struggle for sovereignty and freedom — against Russian tsars, communist dictators...

When you get two doses of a vaccine, you might assume that it doesn't matter which arm gets the shots. But some evidence suggests that it does.

In the long term, shutting down a coal mine means cleaner air and a healthier environment — but in the short term, it can devastate a community or family that relied on the mine's paychecks to make ends meet. Environmental justice...

After decades of improvement, the number of malaria deaths is on the rise again. So scientists are experimenting with a new kind of mosquito control, and it's not an insecticide.

In which John Green talks about the many revolutions of Latin America in the 19th century. At the beginning of the 1800s, Latin America was firmly under the control of Spain and Portugal. The revolutionary zeal that had recently created...

In which John teaches you about the Seven Years War, which may have lasted nine years. Or as many as 23. It was a very confusing was. The Seven Years War was a global war, fought on five continents, which is kind of a lot. John focuses...

Today, about one-tenth of the world's population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place? Daniel M. Abrams investigates how the uneven ratio of lefties and...

When you're sick you just want to be left alone. Sometimes that's because you physically can't move, but other times, it might have more to do with the way your immune system is connected to your brain.

Octopus, squid and cuttlefish -- collectively known as cephalopods -- have strange, massive, distributed brains. What do they do with all that neural power? Dive into the ocean with marine biologist Roger Hanlon, who shares astonishing...

In this powerful talk, P.W. Singer shows how the widespread use of robots in war is changing the realities of combat. He shows us scenarios straight out of science fiction -- that now may not be so fictitious.

What can't Candace Parker do? A two-time NCAA champion, two-time Olympic gold medalist and two-time WNBA champion, Parker knows what it takes to fight for your dreams. In this inspiring talk, she shares what she's learned during a career...

SciShow delivers the latest in science news, including how fist-fighting fueled the evolution of the human face, new insights into the origin of schizophrenic "voices," and new research into the bird flu.

The 17th Century in Europe was pretty rough in a lot of ways. The Thirty Years War involved a lot of countries, and a lot of battles, and it was terrible for everyone involved, as wars have aa historical tendency to be. At the same time,...

What's stopping the American government from recording your phone calls, reading your emails and monitoring your location? Very little, says surveillance and cybersecurity counsel Jennifer Granick. The government collects all kinds of...

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences.

Around the world, black girls are being pushed out of schools because of policies that target them for...

Can government be run like the Internet, permissionless and open? Coder and activist Jennifer Pahlka believes it can -- and that apps, built quickly and cheaply, are a powerful new way to connect citizens to their governments -- and...

In the late 13th century, Osman I established a small principality sandwiched between a crumbling Byzantine Empire and a weakened Sultanate of the Seljuk of Rum, in what is now Turkey. In just a few generations, this territory had...

Ben Fowlkes joins the Talk Show to talk about mixed martial arts and how it affects the brain and body.

You may know about The Marshmallow Test, a popular psychological exam to see if people have willpower, but psychologists found that it might not be measuring willpower after all.

The theory of social networks allows us to mathematically model and analyze the relationships between governments, organizations and even the rival factions warring on Game of Thrones.