Guns in Space

This video is about gravitational waves in the weak field limit as discovered by the LIGO collaboration, explained by parallels to electromagnetic radiation, sound waves, water waves, etc. I want to see Cat LIGO ASAP!

Concrete doesn't dry - it sets!

How do we know atoms exist? And just how big are they? Pi day (3.14) is Albert Einstein's Birthday! To celebrate, we'll explain 4 of his most groundbreaking papers from 1905, when he was just 26 years old.

Want to learn more about the topic in this week's video? Here are some key words/phrases to get your googling started: - Lifting Condensation Level (LCL): The altitude at which the water vapor in rising air begins to condense - Adiabatic...

Today's oceans are full of fish with fins that couldn't evolve into limbs like ours. So, who are our ancestors and where did they go?

How to Turn Sound Into Light - Sonoluminescence

The basic infrastructure that controls plumbing, electricity and more is vital to your individual agency, says engineering professor Deb Chachra. She offers a crash course on how these systems connect to shape our lives — and suggests...

Squeaks and Jessi are learning all about the animals that live at the bottom of the world, including penguins - emperor penguins, macaroni penguins, and more! We learn why penguins look like they're all dressed up, and what kind of food...

In this SciShow Kids compilation, Jessi and Squeaks revisit some of their favorite winter activities and learn a little science along the way.

The oceans around Antarctica are cold, but full of life. Join Jessi and Squeaks to learn about the blubber of seals, the amazing antifreeze blood of fish, and the shrinking skills of krill.

In this SciShow Kids episode, Jessi and Squeaks learn about amazing places where it almost never rains. <br/>

In this episode, Jessi and Squeaks learn about the many kinds of mouths insects can have, and why they look so different!<br/>

Squeaks, Jessi, and the gang are all going on vacation to the lake, but there's a problem. Our friend Juniper needs a boat, and ours is missing! Jessi proposes we think like engineers and gather information to find a way to solve our...

Squeaks, Jessi, and the gang have all designed rafts for our friend Juniper to ride. Now, we'll think like engineers by testing our designs, comparing them, and improving them to make the very best raft we can!

In the millions of years since oxygen began saturating Earth’s oceans and atmosphere, most organisms have evolved to rely on this gas. However, there are some places where oxygen-averse microorganisms like those from Earth’s earliest...

For most of the world’s 4,000 mayfly species, adulthood lasts roughly one day. And for some species, it’s only a matter of minutes. This isn’t because they’re all eaten up by predators. Rather, this abridged adulthood is a natural part...

The Maasai people have lived sustainably off the savanna for centuries, raising cattle for sustenance and income. Climate activist Dorcas Naishorua paints a picture of how the climate crisis is threatening their way of life — and calls...

There's an invisible health threat right under our feet, says investigative journalist Yvette Cabrera. She digs into the pervasive problem of lead contamination in soil — a particular risk for children in cities — and shares her action...

What challenges lie ahead of a staggering 12,700-kilometer paddle around the entire continent of Australia? Crocodiles and sharks were just the beginning, says Ironwoman Bonnie Hancock. Reflecting on her remarkable feat of becoming the...

Many people picture the Arctic as a pristine icy wilderness. But when it comes to microplastics, it's one of the most polluted places on Eart

From cyclones to snowstorms, Earth is home to some spectacular weather events. But they're nothing compared to what you can find on the other planets in our solar system. Magnetic tornadoes? Ammonia mushballs? Let's (not literally) dive...

Liquid nitrogen (LN2) might slow down a T1000 for a bit, and it definitely helps make yummy ice cream during a classroom demo, but it has a lot of applications you may have never considered. Maybe one day it'll help astronauts stay...

There are many conventional ways to treat oil spills, both at sea and on land, but some of the strangest include human hair and chicken manure.