The year is 1400 BCE. At the temple of the fisherman, the morning is unusually still and this is just the latest in a series of troubling signs for Quexo, the village shaman. The villagers live off the sea, but this year the winds have...

What if we could capture pollution in the air around us and turn it into something useful? Inventor Anirudh Sharma shares how he created AIR-INK, a deep black ink that's made from PM 2.5 pollution. See how he hacked together a clever way...

During the 17th century, the Dutch East India Company cornered the booming spice market and pioneered trade routes between Asia and Europe. It is widely considered the most profitable corporation ever created. But such success came with...

The pee you just flushed without thinking could be a great sample to know what is going on in your body!

How worried should you be when your urine isn't yellow, but instead it's green, red, or even black?

What's happening inside our ears when we can hear that ringing? What's happening inside our brains? Sit back, clean the wax out of your ears, and let Michael Aranda explain!

Your nails can do more than just look pretty. They can tell you some things about your health!

Paul Andersen explains how feedback loops allow living organisms to maintain homeostasis. He uses thermoregulation in mammals to explain how a negative feedback loop functions. He uses fruit ripening to explain how a positive feedback...

If we want to build a place for us to live, or to hang out, or do eat dinner with our friends, we're going to need a special kind of engineering called architecture. In this episode of Crash Course Kids, Sabrina gets us to help her build...

Thanks to the St. Croix Watershed Research Station for sponsoring this video! To learn more about their work, visit

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Nausea and vomiting are common side effects of severe pain, but why do our bodies do this!?

In this video Paul Andersen explains how a charge particle will experience a magnetic force when it is moving through a magnetic field. The right-hand rule is described as a method for determining the direction of the force. The...

From lemurs to lizards, ants to amphibians, sharks to chickens, hundreds of animals "play dead" as a survival tactic. But how and why do animals do this? Tierney Thys explains how this curious behavior, known as tonic immobility or TI...

What's your sign? In Western astrology, it's a constellation determined by when your birthday falls in the calendar. But according to the Chinese zodiac (__), it's your shuxiang, meaning the animal assigned to your birth year. And of the...

What is a differential equation, the pendulum equation, and some basic numerical methods

Rajesh Rao is fascinated by "the mother of all crossword puzzles": how to decipher the 4000-year-old Indus script. He's enlisting modern computation to try to read this lost language, the key to understanding this ancient civilization.

SpaceX CEO Elon Musk announced some ambitious plans at the International Aeronautical Congress. If he's right, we could have humans living on the moon and Mars within a decade, and you might never have an 18 hour flight again!

New ReviewThis video explains the ambiguous case in trigonometry where no triangle can be formed despite given measurements (0:00). The presenter, Brian McLogan, provides three examples (0:10) to illustrate how to identify when a solution is...

Healthcare Triage is a new series from Dr. Aaron Carroll and the team behind Crash Course and Mental Floss Videos. In this episode, Aaron gets a visit from noted hypochondriac John Green, and allays some of his fears about Obamacare. He...

In this shorts video we will ask ourselves is the product or quotient positive or negative. We will review the question and recognize that all number facts are either multiplication or division. We will review the rule which states...

Continuing our discussion on influencer marketing, here we are talking about the goals that brands and companies should have when they decide to work with influencers.

Filmed in Las
Vegas
#influencermarketing...

Biology and Psychology are interconnected sciences. In this video we analyse the stages of prenatal development to understand what is happening in the womb during pregnancy, and how this connects to psychological development. Given that...

These Gestures Might Mean Something Else Abroad!

Elmiene opens up about signing with Def Jam after receiving messages from CEO Tunji Balogun — and why the label’s embrace of “Black Weirdos” sealed the deal. Watch more on The Newprint from Boardroom.