From "got milk?" to "avocados from Mexico," marketing influences what you eat more than you may realize. But despite the known power of food marketing, farmers in Africa are more likely to receive funding for seed and fertilizer than...

Loneliness doesn't always stem from being alone. For architect Grace Kim, loneliness is a function of how socially connected we feel to the people around us -- and it's often the result of the homes we live in. She shares an age-old...

One year ago, Abha Dawesar was living in blacked-out Manhattan post-Sandy, scrounging for power to connect. As a novelist, she was struck by this metaphor: Have our lives now become fixated on the drive to digitally connect, while we...

Could the same mechanism used to accelerate vaccine development work for spurring solutions to the climate crisis? Sustainability innovator Stacy Kauk introduces the billion-dollar fund to supercharge the carbon removal market, which...

Digital public servant Amanda Renteria has seen that the millions of people who rely on government welfare services are often discouraged from seeking them out, frustrated by long lines and unnecessarily complicated processes. At Code...

Money, money, money ... in the music business, there seems to be little left for the songwriters that fuel it. ABBA co-founder Björn Ulvaeus calls for the industry to support its most valuable asset, breaking down how the streaming...

In which Craig Benzine tells you how we keep bureaucracy in check. So we've spent the last few episodes telling you all about what bureaucracies are and why they are formed. And throughout we've hinted about this ever-expanding power...

In which John Green teaches you about the United States in the 1920s. They were known as the roaring 20s, but not because there were lions running around everywhere. In the 1920s, America's economy was booming, and all kinds of...

Today, John Green is going to be your substitute teacher as we dive into the world of sports! Now ��_sports��_ is a pretty broad genre of game, we probably couldn't even cover them in an entire series, but today we're going to do...

In the 1980s and 90s, pharmaceutical companies began to market opioid painkillers aggressively, while actively downplaying their addictive potential. The number of prescriptions skyrocketed, and so did cases of addiction, beginning a...

America was built by makers -- curious, enthusiastic amateur inventors whose tinkering habit sparked whole new industries. At TED@MotorCity, MAKE magazine publisher Dale Dougherty says we're all makers at heart, and shows cool new tools...

What if we could find cancerous tumors years before they can harm us -- without expensive screening facilities or even steady electricity? Physician, bioengineer and entrepreneur Sangeeta Bhatia leads a multidisciplinary lab that...

Satellite imaging has revolutionized our knowledge of the Earth, with detailed images of nearly every street corner readily available online. But Planet Labs' Will Marshall says we can do better and go faster -- by getting smaller. He...

Photographer Lisa Kristine travels the world documenting the unbearably harsh realities of modern-day slavery. She shares hauntingly beautiful images -- miners in the Congo, bricklayers in Nepal -- that illuminate the plight of the 27...

Hank is joined by Peter Winkler with some news about sinkholes and DARPA's new robotic mule, and then the boys are joined by Jessi from Animal Wonders and her special friend "Fluffy" the Chilean rose hair tarantula.

Scientists have discovered over 5,000 exoplanets in the last few decades, but where are the Exo-Earths?

Hank discusses some of the taboos which have plagued scientific inquiry in the past and a few that still exist today.

Chinese alchemists searching for an elixir of eternal life discovered the world's first chemical explosive. Hank has the full story on gunpowder in this SciShow about a big idea of science.

In which John Green teaches you about water! So, we talk about resources a lot on Crash Course, and today is no exception. It turns out people can't live without water, which means it's absolutely necessary for civilization. Today John...

In this revelatory talk, technologist Kayvon Tehranian explores why NFTs -- digital assets that represent a certificate of ownership on the internet -- are a technological breakthrough. Learn how NFTs are putting power and economic...

Lighting architect Rogier van der Heide offers a beautiful new way to look at the world -- by paying attention to light (and to darkness). Examples from classic buildings illustrate a deeply thought-out vision of the play of light around...

It might look like a perfect circle, but the Moon is actually wider than it is tall. Now, new calculations indicate that the Moon’s shape is a remnant of a time when Earth might’ve been covered in a single, global ice sheet.

Can public spaces both reclaim the past and embrace the future? Landscape architect Walter Hood has explored this question over the course of an iconic career, with projects ranging from Lafayette Square Park in San Francisco to the...

Sodium pentothal, the so-called "truth serum,' is real! But does it work? Find out what "truth serums' do, and how your brain lets you tell lies.