Irina Karamanos Adrian didn't plan on becoming Chile's First Lady — but she set out to transform the role all the same. She shares how she's fighting gender stereotypes and protecting democracy by shifting political power back to where...

In this gripping talk, lawyer Jason McCue urges for a new way to attack terrorism, to weaken its credibility with those who are buying the product -- the recruits. He shares stories of real cases where he and other activists used this...

Visual artist Helen Marriage stages astonishing, large-scale public art events that expand the boundaries of what's possible. In this visual tour of her work, she tells the story of three cities she transformed into playgrounds of the...

It was Christmas in Camelot and King Arthur was throwing a party. In the midst of the revelry, a towering knight proposed a game. He challenged the warriors present to attack him with his own axe. If they could strike him down, they...

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Media big shot Felix Dennis roars his fiery, funny, sometimes racy original poetry, revisiting haunting memories...

Hank takes us on a trip through the history of pregnancy tests through the ages, from ancient Egypt to the first home pregnancy tests of the 1970s. It's generally not a very pretty story, but it should help make us very grateful for the...

Why do we call women ladies? Well, etymologically-speaking, the word comes from the Old English words for hlaf (bread) and daege (maid), which, combined, mean the female head of the household and eventually indicated high social...

Violinist Sirena Huang gives a technically brilliant and emotionally nuanced performance. In a charming interlude, the 11-year-old praises the timeless design of her instrument.

Robert Neuwirth spent four years among the chaotic stalls of street markets, talking to pushcart hawkers and gray marketers, to study the remarkable "System D," the world's unlicensed economic network. Responsible for some 1.8 billion...

Comedian Aparna Nancherla loves to take out the trash. In this funny and sharp meditation on garbage -- "the stuff that our modern, consumerist, carbon-powered culture makes us buy endlessly, and often for no reason" -- she shares...

Evolution doesn't care about ethics - it cares about surviving and getting your alleles out there as much as possible. From that perspective, cannibalism can seem like a pretty good idea to some creatures. Hank introduces us to three...

Let's get Heroic with Mike Rugnetta. This week on Crash Course World Mythology, we're talking about the Hero's Journey and the Monomyth, as described by Joseph Campbell. Campbell's theories about the shared qualities of human story...

Howcast - Learn how to continue the conversation with a girl after the song ends in this Howcast club dancing video with expert Tweetie.

Howcast - Check out part 2 and beat Chapter 1 of Act 2 - "Shipwreck" with this online walkthrough for the third person action shooter "Gears of War 3".

Howcast - Check out part 49 of this L.A. Noire walkthrough and beat "The White Shoe Slaying" with this online demo.

Howcast - Check out part 111 of this L.A. Noire walkthrough and beat "House Of Sticks" with this online demo.

Howcast - Check out part 97 of this L.A. Noire walkthrough and beat "The Gas Man" with this online demo.

Howcast - Learn the triple drag, also known as the triple arrastre, from tango instructors Diego Blanco and Ana Padron in this Howcast Argentine tango video.

Howcast - Learn about Bradley Desir, one of Howcast's leg lock experts, in this video.

Howcast - Check out part 7 and beat Episode 2: "The Cavalry" of Jurassic Park: The Game with this online demo of the third-person adventure .

Howcast - Learn how to dance a cha-cha open break with underarm turns in this Howcast dance video.

Howcast - Learn how to dance cha-cha outside partner breaks in this Howcast dance video.

Howcast - Learn how to dance a cha-cha cross body lead in this Howcast dance video.

Howcast - Learn how to dance a cha-cha underarm turn (for the ladies) in this Howcast dance video.