Proving something right isn’t just about quantity. It’s also about quality and over the years, scientists have made measurements proving that we understand ridiculously well how the universe works.

Geckos aren't covered in adhesives or hooks or suction cups, and yet they can effortlessly scale vertical walls and hang from ceilings. What's going on? Eleanor Nelsen explains how geckos' phenomenal feet allow them to defy gravity.

What if we could use existing technologies to provide Internet access to the more than 4 billion people living in places where the infrastructure can't support it? using off-the-shelf LeDs and solar cells, Harald Haas and his team have...

Caviar or fruity ball? Whatever you like! Here’s a rundown of how to spherify your own edible bubbles and why they could help to reduce waste.

Shaffi Mather explains why he left his first career to become a social entrepreneur, providing life-saving transportation with his company 1298 for Ambulance. Now, he has a new idea and plans to begin a company to fight the booming...

In this video Paul Andersen explains how ionic solids form when cations and anions are attracted. When atoms lose or gain electrons they form ions. The strength of the attraction between ions is based on the amount of charge and the...

Scientists picked up two unusual signals that seemed to be coming up from the ground instead of down from space. They're still working on understanding why, but despite what you may have heard, they aren't evidence for a parallel...

In this video Paul Andersen explains how systems are two or more objects that interact with one another. If a system has no relevant internal structure it can be treated as an object. The conservation laws apply to energy, charge and...

Homaro Cantu and Ben Roche come from Moto, a Chicago restaurant that plays with new ways to cook and eat food. But beyond the fun and flavor-tripping, there's a serious intent: Can we use new food technology for good?

It’s usually not a great idea to break laws, but breaking the laws of science is an exception! In fact, it’s often how we make progress.

In this video Paul Andersen explains how electric force on an object inside a field can be calculated by multiplying the charge of the object (in C) times the electric field strength (in N/C).

In this video Paul Andersen explains how electromagnetic forces are exerted over all scales and dominate at the human scale. The magnitude of electromagnetic forces vary with the magnitude and motion of the electric charges involved.

This video is about weird condensed matter systems, aka materials that have bizarre emergent particles in them that are unlike most other particles in the universe.

In this video Paul Andersen explains how you can use Coulomb's Law to determine the electric force between two charges. In Physics 1 students should be able to calculate the force between two charges and in Physics 2 students should be...

If you put your tongue on a 9-volt battery it might taste sour, kind of like lemonade, but why does that shock have a flavor?

Learn more about electric animals with Hank Green.

Over the years, research has shown a counterintuitive fact about human nature: Sometimes, having too much choice makes us less happy. This may even be true when it comes to medical treatment. Baba Shiv shares a fascinating study that...

Venomous snakes produce some of the world’s deadliest substances, so they have to be pretty careful about how they use it. But what happens if they accidentally inject themselves with their own harmful cocktail?

There are batteries powering so many parts of our everyday lives, so today we’re going to talk about how they work and how we can make them better. We’ll explain how they provide power by discharging ions between a cathode and an anode,...

Do you wait to charge your phones battery until it's close to dying? If you do- surprise! You're doing it wrong.

What’s happening with the helicopter on Mars? We have an update on Ingenuity’s progress. Meanwhile, Curiosity’s camera are helping geologists find clues to the mysteries of Martian water!

It's an unfortunate reality in nearly every major city—road congestion, especially during rush hours. Jonas Eliasson reveals how subtly nudging just a small percentage of drivers to stay off major roads can make traffic jams a thing of...

In this video Paul Andersen explains how the electrochemical gradient is a combination of the chemical and electrical gradient of ions. As ions move across a membrane the potential change creates a hidden force that isn't always apparent.

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.