After a friend of mine got a tattoo with a representation of the cosecant function, it got me thinking about how there's another sense in which this function is a tattoo on math, so to speak.

In this week's SciShow News, we discuss two new types of sensors being developed. One tracks the content of certain molecules in your sweat while you exercise and the other is a brain implant that can be resorbed once it has finished its...

You’ve probably had some. White lines or spots that appear and grow out with your nails. Why does this happen? There are a few reasons, ranging from bumping your nail to poisoning. Check out his Quick Question to see what might apply to...

A leather mask that clamps the mouth shut. A cannonball sewn into a soldier's uniform. A machine that delivers sudden electrical pulses. These were all treatments for a problem that has haunted humanity for millennia: snoring. It might...

"Music is so much more than sound simply traveling through the ear," says sign language interpreter Amber Galloway-Gallego. In a spirited performance, musician and activist Madame Gandhi plays two songs -- "Top Knot Turn Up" and "Bad...

Having feelings isn't a sign of weakness -- they mean we're human, says producer and activist Nikki Webber Allen. Even after being diagnosed with anxiety and depression, Webber Allen felt too ashamed to tell anybody, keeping her...

The introduction to a series on visualizing core ideas of linear algebra.

A sigh is often taken to be a sign of sadness, but it can indicate a lot more than that,or a lot less.

The introduction to a series on visualizing core ideas of linear algebra.

It's the year 2018, and we now know that flies like to ejaculate. But how does this tie into our understanding of addiction?

Dogs do a lot of weird things, and sometimes they're funny enough to post on Tumblr. But before you do, make sure li'l Scamp isn't doing any of these three things -- because they spell trouble.

Hank goes over some of the more interesting ways that doctors can use to tell what might be wrong with you.

Did you know we have a whole channel dedicated to the human mind, people and interactions between people? It’s called SciShow Psych! And here is a compilation of five videos from that channel explaining some common experiences you may...

Many species show off their teeth as a threat, so where did humans get our friendly smiles?

We all want to save more money -- but overall, people today are doing less and less of it. Behavioral scientist Wendy De La Rosa studies how everyday people make decisions to improve their financial well-being. What she's found can help...

Landing will take place the night of August 5th, 1:30 AM eastern, 10:30 pm pacific, and 6:30 AM GMT (August 6th.)

The Mars Science Laboratory or Curiosity Rover is the largest payload ever delivered to the surface of a planet and...

What should you do after your phone goes for a swim?

Astrophysicist and TED Fellow Sarah Rugheimer searches for aliens -- but not the cartoony green kind. She's looking for extraterrestrial microbes by studying how these single-celled organisms emit gases, which could reveal evidence of...

Great design is a never-ending journey of discovery -- for which it helps to pack a healthy sense of humor. Sociologist and surfer-turned-designer David Carson walks through a gorgeous (and often quite funny) slide deck of his work and...

In baseball, a curveball can be pretty hard for a batter to hit. And it turns out the reason why might have more to do with the batter's eyes than the pitcher's arm!

The hymen is a human structure that is surrounded by myths and misunderstandings. So today, we shed some light on what the hymen actually is, where it comes from, and why it can’t actually tell you anything about a person.

Don't make people pay for music, says Amanda Palmer: Let them. In a passionate talk that begins in her days as a street performer (drop a dollar in the hat for the Eight-Foot Bride!), she examines the new relationship between artist and...

If you found the whiteish-yellowish lump on your throat, that might be a tonsil stone. But where does the lump come from? Why do you have it?

SciShow Space News explains what happened to Philae, the first spacecraft on the surface of a comet, and shares what scientists say about the future of the mission.