Nearly 350 species of fish have specialized anatomical structures that generate and detect electrical signals. Underwater, where light is scarce, electrical signals offer ways to communicate, navigate, find, and sometimes stun prey. But...

SciShow Space explores the supermassive black hole spinning at the center of our galaxy, and how we've all learned to live with it in harmony.

The Dark Side of the Moon Explained in Ten Seconds

Two proofs for the surface area of a sphere

You’re in the woods, there’s a full moon, and the wind begins to howl. We can’t take you out of this horror movie scenario, but we can explain why the wind sounds so spooky.

This video is about Tuned Mass Dampers, which can be used to reduce or avoid unwanted vibrations, swaying, swinging, bending, etc on engineered structures ranging from buildings, skyscrapers, electricity power transmission lines,...

In this episode of SciShow we look at the most fascinating birds that hover!

Beware: Rives has a contagious obsession with 4 a.m. At TED2007, the poet shared what was then a minor fixation with a time that kept popping up everywhere. After the talk, emails starting pouring in with an avalanche of hilarious...

The European Space Agency is hoping to establish an inhabited research base on the moon by the 2020s. But living in this "moon camp" won't be easy. How will humans deal with the cosmic radiation? What will the inhabitants eat? And what's...

In this collection of classic MinuteEarth videos, we travel beyond Earth and explore some of our favorite mysteries about space.

Today we’re going to talk about the forces that affect a country’s stability. We’ll take a closer look at Costa Rica, Venezuela, Cuba, and Brazil and examine how the cohesiveness of these Latin American countries varies dramatically even...

Symmetry is everywhere in nature. And we usually associate it with beauty: a perfectly shaped leaf or a butterfly with intricate patterns mirrored on each wing. But it turns out that asymmetry is pretty important, too - and more common...

In this video Paul Andersen explains how inertial mass and gravitational mass are equivalent. He shows you too simple methods for calculated individual inertial mass and gravitational mass. Albert Einstein used this principle to build...

Cicadas are small insects, but they're famous for being one of the loudest animals in the world!

Long lines, being patted down, and having your hands swabbed don't make for a wonderful day, but Michael Aranda explains the machines you encounter in airport security and the science and technology behind them.

The other day I got bored and noticed this weird thing happened when I held my finger up to my eye, so I had to science it and figure it out! Let me know if you try these light-bending experiments too, especially that last one that I...

In this video Paul Andersen explains how electric permittivity of a material resists the formation of electric fields. Capacitors store energy be preventing the formation of electric fields in dielectric material. The electric...

In a 1990's study, participants recalled getting lost in a shopping mall as children. Some shared these memories in vivid detail, but there was one problem: none of these people had actually gotten lost in a mall. They produced these...

Some birds fly in V shapes because it has many benefits, but other birds fly in clumps instead. Why would they do that?

Hank fields one of the most commonly asked questions about our solar system: Why does Saturn have rings? Part of the answer has to do with the fact that it's not the only planet that has them. Watch to learn more!

So, how do engineers even figure out what problem needs to get fixed? And what's the difference between identifying a problem and just complaining about something. In this episode of Crash Course Kids, Sabrina talks about how we can all...

How do you know when you've "discovered" a particle? What do we mean by "discovery"?

Why Only Some Monkeys Have Awesome Tails

Can geometry predict the future? Cosmologists think the overall curvature of universe can tell us secrets about how it will eventually end.