The most popular language on earth isn’t spoken, it’s smelled. Those smells are made up of terpenes, a multipurpose class of chemical compounds.

The Internet is older than you might think!

Welcome to the romantic, violent, treacherous, and murderous mating lives of bugs.

If you’re a wild animal, you might spend your days actively trying to NOT become another animal's dinner. And some animals have come up with some pretty bizarre strategies to stay safe. Hosted by: Michael Aranda

Freezer burn, what's your deal? Why are you ruining our dinner plans?

Hank serves up a buffet of news items that includes an approximate date for the end of everything, scientific proof that when it comes to sex bigger IS better, and a look behind how the London Olympics are going green. Bon appetit!

Could the next wonder drug be somewhere in Canada's snowy north? Take a trip to this beautiful, frigid landscape as chemist Normand Voyer explores the mysterious molecular treasures found in plants thriving in the cold. These scarcely...

For almost two millennia, the Pope has been a figure of supreme spiritual authority for Catholics around the world. But in the late 14th century, Catholics found themselves with not one, not two, but three popes. Where did this plethora...

In 1960, composer John Cage went on television to share his latest work. But rather than using traditional instruments, Cage appeared surrounded by household clutter, including a bathtub, ice cubes, a toy fish, a rubber duck, several...

In the last few decades, China has gone from technological scarcity to abundance. What sparked this shift? Economist Keyu Jin explores how China has fostered a model of innovation unlike any other and shows why understanding its...

As Squeaks continues to prep for his big trip with Jessi, Mr. Brown helps him learn all about how the wind outside the fort will also affect how long his airplane ride with Jessi takes!

Squeaks and Mister Brown love cotton candy, so they learn how cotton candy machines turn regular sugar into fluffy, delicious cotton candy!

Squeaks and Mr. Brown saw some really cool birds while they were birdwatching at The Fort, so they’re revisiting old videos to remind themselves about a bunch of really cool birds!

The fossil fuel industry is a factory of fairy tales, says activist and School Strike for Climate organizer Luisa Neubauer. Tracing the industry's five-decade trickle of lies about climate science, she busts the myth that economic growth...

Conservation champion and TED Fellow Adjany Costa is on a mission to empower Indigenous communities. Instead of imposing pre-designed policy and plans on local people, she says, conservation efforts should center those who know the land...

Lawyers are advocates for their clients -- and, in court, they're usually the ones who do the talking. Should that always be the case? In an effort to shift this power dynamic, TED Fellow and legal aid activist Lam Ho shares how lawyers...

In this video Paul Andersen explains how reaction intermediates are created in elementary steps and may not appear as either a reactant or product. Experimentation is used in Chemistry to identify reaction intermediates.

The product rule and chain rule in calculus can feel like they were pulled out of thin air, but is there an intuitive way to think about them?

There's an invisible force shaping our lives, affecting the weather, climate, land, economy, and just whether a flag looks majestic or not - we're talking about the wind! Today we’re going to go into the science of where the wind comes...

When you report an emergency in the US, police, firefighters or paramedics answer the call. What if mental health professionals responded, too? Colorado State Representative Leslie Herod shares a straightforward and research-backed...

The lower half of Mr. Andersen's head explains why cells are small. This video begins with a simple geometry problem and ends with a discussion of Allen's Rule and reasoning for the microscopic nature of cells.

This video was made with the support of the Heising Simons Foundation.





This video is about the Ozma problem of distinguishing the chirality (ie left-handedness or...

In which John Green teaches you about the fall of the Roman Empire, which happened considerably later than you may have been told. While the Western Roman Empire fell to barbarians in 476 CE, the Byzantines in Constantinople continued...

The product rule and chain rule in calculus can feel like they were pulled out of thin air, but is there an intuitive way to think about them?