When the world goes fully electric, what happens to the cars, tools and livelihoods that rely on fossil fuels? Civil engineer and environmental sociologist Emily Grubert visualizes what a clean energy future will look like, outlining the...

Restaurateur Will Guidara's life changed when he decided to serve a two-dollar hot dog in his fancy four-star restaurant, creating a personalized experience for some out-of-town customers craving authentic New York City street food. The...

How do the structures of organisms enable life's functions? Benchmarks for grades 2, 5, 8 and 12 are included.

In this video Paul Andersen explains how energy is used in chemical processes and everyday life. Students should understand that energy is neither created or destroyed but is converted. Most of the energy is delivered to our planet...

Lindsay Amer is the creator of "Queer Kid Stuff," an educational video series that breaks down complex ideas around gender and sexuality through songs and metaphors. By giving kids and their families a vocabulary to express themselves,...

And thus begins the most revolutionary biology course in history. Come and learn about covalent, ionic, and hydrogen bonds. What about electron orbitals, the octet rule, and what does it all have to do with a mad man named Gilbert...

In which John Green, Hank Green, and Emily Graslie teach you about, well, everything. Big History is the history of everything. We're going to start with the Big Bang, take you right through all of history (recorded and otherwise), and...

Paul Andersen explains how to formulate questions to guide discussions and investigations. He starts by describing the proper type of questions that should be asked in an AP Biology classroom. He gives four examples of questions that...

Natural selection can lead to some pretty amazing adaptations, but sometimes the resulting traits aren’t the most efficient solutions to the problems at hand. With the bar set to “good enough,” here are some features that arose from...

Do other planets have weather? It turns out that, yes, they do! But, the weather isn't all the same on other planets because of things like atmosphere. In this episode of Crash Course Kids, Sabrina takes us on a tour of the weather on...

Have you ever lost a tooth? Or maybe you have teeth that are getting a little wiggly? It's all part of growing up! Join Jessi and Squeaks to learn why we lose our baby teeth and how we can take care of our new permanent teeth! Say cheese!

This video is about the original cold fusion: μ muon-catalyzed cold fusion of deuterium, tritium, hydrogen, into helium-3 and helium 4. The problems with it are the half-life of muons and the sticking of muons to alpha...

We all know that when we make decisions in groups, they don't always go right -- and sometimes they go very wrong. How can groups make good decisions? With his colleague Dan Ariely, neuroscientist Mariano Sigman has been inquiring into...

The deadliest severe weather phenomenon is something you might not realize: extreme heat. Eleni Myrivili, chief heat officer of the city of Athens, Greece, explains that extreme heat and heat waves are often overlooked because they're...

How do you think about a non-square matrix as a transformation?

Hank Green interviews Scishow's Chief Editor Blake de Pastino who explains his interest in writing about science, paleontology & anthropology. Special guest Jessi Knudsen Castañeda brings corn snakes for everyone to play with.

In an engaging, insightful conversation, criminal justice reformer Nick Turner breaks down the ways the US criminal legal system perpetuates centuries-old racial and economic inequality. He joins TED current affairs curator Whitney...

How much of what you think about psychology is actually wrong? In this whistle-stop tour of disproved ideas, Ben Ambridge shares nine popular ideas about psychology that have been proven wrong -- and uncovers a few surprising truths...

Why do we trust some companies and not others? Using real-world examples, digital trust advisor Marcos Aguiar decodes this make-or-break quality -- and offers seven tools to help leaders design a foundation of trust into their business...

The Silent Era of Hollywood set a lot of things into motion in terms of how movies were made and sold. Big stars were one of the main ways studios tried to make their movies stand apart from one another and get the public to make choices...

If you play video games, you've shot a gun. And those guns are REALISTIC. So real that many are actually LICENSED by IRL arms dealers. Which means that when you buy a video game, you're also putting money in the pockets of those gun...

Supply chain challenges are real, but they're not new, says global trade expert Dustin Burke. In the face of disruptions ranging from natural disasters to pandemics, how do we make sure supply chains can keep up? Burke offers a...

Consciously or not, the first thing you notice when you visit a website is how the site LOOKS, which is controlled by the CSS Stylesheet. CSS is the fashion of the web- it makes sites pretty (or very very ugly). And as our lives migrate...

Work-life balance, says Nigel Marsh, is too important to be left in the hands of your employer. Marsh lays out an ideal day balanced between family time, personal time and productivity -- and offers some stirring encouragement to make it...