So, moose licking cars in winter is a thing, if you live in a place that has both moose and winter. But why on earth do they do this?!

About 10% of the world population is left-handed. But why does handedness exist and what determines which hand is dominant? Scientists have suggested several theories, but the answer may well lie with evolution.

What's the deal with that sharp pain in your side when you're trying to win that marathon? SciShow has the answers! Hosted by: Hank Green

Nadya Tolokonnikova, founding member of the anti-Putin resistance group Pussy Riot, was named a top enemy of Russia for speaking out against Vladimir Putin's dictatorship throughout the last decade. In this inspiring talk, she tells the...

Music is a tradition nearly as old as humankind itself, so it's no wonder our brains have developed interesting ways of interacting with and responding to it. Here are just a few of the ways music impacts our psychology.

Youth leader Shreya Joshi diagnoses a key source of political polarization in the US and shows why having "uncomfortable conversations" with people you disagree with is crucial to bridging the divide. "When we are able to recognize what...

Imagine a boat that propels by moving its "tail" from side to side, just like a fish. That's the kind of machine that TED Fellow Robert Katzschmann's lab builds: soft-bodied robots that imitate natural movements with artificial, silent...

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

The second law of thermodynamics - the law that entropy must, on average, increase - has been interpreted as the inevitability of the decay of structure. This is .... misleading. Structure can develop in one region even as the entropy...

If we want to fix our politics, we have to do something about inequality, says social psychologist Keith Payne. Showing how economic inequality changes the way people see and behave towards one another, Payne helps explain the rise of...

You have a lot of choices if you’re looking to learn a new language, from Spanish to coding, or even whistling! And there are some broad similarities and patterns in the ways our brains process these different forms of communication.

Paul Andersen explains how living organisms exchange matter with the environment. The importance of the surface area to volume ratio is emphasized using a simple mathematical model. The essential chemicals for life; water, carbon,...

Solving the heat equation.

Solving the heat equation.

Shocking the brain has come and gone as a medical treatment, but it’s currently resurging, as it often provides the best form of relief for severe depression and advanced Parkinson’s disease. ___________________________________________...

The simple eye movements involved in EMDR therapy are supposed to help you reprocess traumatic memories, but does it actually work?

Can Batteries Power Everything? This video is about the physical and chemical limitations to electrolytic batteries, and how we might surpass the energy density and specific energy of lithium-ion...

This week on Crash Course Literature, John Green is continuing to talk about Shakespeare's dark, bloody, Scottish play, Macbeth. This time around, we're looking at the play's characters operate, how the play deals with gender, and the...

In this video Paul Andersen explains hot the force-time graph can be used to determine the impulse of an object. Since the impulse and the change in momentum are equivalent the graph can also be used to determine the change in momentum...

What if there were a tunnel through the middle of the earth and you jumped in?

This week Craig Benzine talks about what happens when a case makes it to the Supreme Court of the United States (or the SCOTUS). We're going to focus on court procedure today. We talk about how to petition to get your case heard, how...

On making math videos

Craig Venter and team make a historic announcement: they've created the first fully functioning, reproducing cell controlled by synthetic DNA. He explains how they did it and why the achievement marks the beginning of a new era for science.

Optical illusions are images that seem to trick our minds into seeing something different from what they actually are. But how do they work? Nathan S. Jacobs walks us through a few common optical illusions and explains what these tricks...