This month's Rocks Box is the perfect combo of beauty and brains. Sodalite is a gorgeous blue mineral that has a superpower - its tiny pores can trap all kinds of molecules, making it the perfect sieve for everything from industrial...

For us terrestrial animals, sneezing is a regular part of life involving the movement of a lot of air. But animals that live underwater and don't breathe air like we do also sneeze. Sea sponges, corals, and hagfish use their snot to...

Do you just hate those little bumps all over your nose? Don’t be a hater, they’re just doing their job! Learn how in this SciShow Quick Question.

Most of us have dealt with acne during puberty, or maybe even after that. You probably wanted to pop or pick them in order to remove them, but don't do that! Learn more about acne and learn how to get rid of it more appropriately!

People have been getting tattoos for thousands of years, but we've never quite been sure why the ink sticks around under our skin. A group of researchers now think they might have the answer. Plus, scientists are on the road to making...

Hank talks with University of Montana Professor Rick Hughes about innovating technology and training the SciShow staff. Special guest appearance with Jessi and Veiled Chameleon 'Twirly'.

Thievery is a known survival strategy in the wild. But you couldn’t steal a toxin...or could you? Meet 5 animals that turn someone else’s poison into their own weapon of choice. PORE-FORMING TOXINS 0:50 BIRDS-FOOT TREFOIL 2:45 SIX-SPOT...

People have been getting tattoos for thousands of years, but we've never quite been sure why the ink sticks around under our skin. A group of researchers now think they might have the answer. Plus, scientists are on the road to making...

Deep below the surface, the ocean floor is full of riches. There’s gold, iron, and lots of other rare, precious metals. What kind of geochemical processes can leave loot all over the seafloor?

Hank talks with University of Montana Professor Rick Hughes about innovating technology and training the SciShow staff. Special guest appearance with Jessi and Veiled Chameleon 'Twirly'.

At any moment, there is an electrical storm coursing through your body. Discover how chemical reactions create an electric current that drives our responses to everything from hot pans to a mother's caress.

In the quest to map the brain, many scientists have attempted the incredibly daunting task of recording the activity of each neuron. Gero Miesenboeck works backward -- manipulating specific neurons to figure out exactly what they do,...

You might be familiar with the phrase "like water off a ducks back". But it's not that ducks don't get wet, it's that they get wet, with style.

Paved roads are nice to look at, but they're easily damaged and costly to repair. Erik Schlangen demos a new type of porous asphalt made of simple materials with an astonishing feature: When cracked, it can be "healed" by induction heating.

Most of us have dealt with acne during puberty, or maybe even after that. You probably wanted to pop or pick them in order to remove them, but don't do that! Learn more about acne and learn how to get rid of it more appropriately!

You probably know that sweating is a way for your body to cool off, but how does it help? And why don't other animals, like cats of dogs sweat? Join Jessi and Squeaks to learn all the answers to these questions and more!

Mr. Andersen talks you through the diffusion demo. After you finish watching this video you should be able to rank the following from smallest to largest: starch, glucose, water, IKI and the pores in the dialysis tubing.

Do you just hate those little bumps all over your nose? Don't be a hater, they're just doing their job! Learn how in this SciShow Quick Question.

Howcast - You can’t change the size of your pores, but you can make them look a lot smaller.

Howcast - Learn how to make a facial toner from licensed esthetician Joanna Vargas in this skin care video from Howcast.

Howcast - Learn about the best facial treatments for oily skin from licensed esthetician Joanna Vargas in this skin care video from Howcast.

Howcast - Learn how to prevent the clogged pores that cause pimples from dermatologist Cybele Fishman, MD in this Howcast skin care video.

Howcast - Learn the best time to get waxed if you spray or self tan from Completely Bare owner (and former Real Housewife) Cindy Barshop in this Howcast video.

Howcast - Learn how to do a hot towel shave at home with the shaving tips in this Howcast video.