Would you pay two percent more for the carbon-neutral version of the products you buy and use every day? In this innovative talk, climate pathfinder Jens Burchardt walks us through the costs and considerations of producing...

Is there any hope for those of us plagued by headphone tangles?

Venom can kill ... or it can cure. In this fascinating talk, marine chemical biologist Mandë Holford shares her research into animal venom, from killer sea snails to platypuses and slow lorises -- and explores its potential to one day...

Killer whales migrate thousands of kilometers across oceans, because it's good for their skin?

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Our exploration of ethical theories continues with another theistic answer to the grounding problem: natural law theory. Thomas Aquinas’s version of this theory says that we all seek out what’s known as the basic goods and argued that...

Freud is one of the most famous psychologists ever, but a lot of the things he taught are just… well, wrong. So why do we still spend so much time talking about this dude in psychology classes?

Economist Andrew McAfee suggests that, yes, probably, droids will take our jobs -- or at least the kinds of jobs we know now. In this far-seeing talk, he thinks through what future jobs might look like, and how to educate coming...

Some aquarium hobbyists will pay $10,000 or more for a single shrimp because of the rarity of their colors or patterns.

To address the problem of counterfeit goods, African entrepreneurs like Bright Simons have come up with innovative and effective ways to confirm products are genuine. Now he asks: Why aren't these solutions everywhere? From...

You may have satisfied your inner five-year-old by learning why the sky is blue, but where does the ocean's color come from?

Do our smells make us sexy? Popular science suggests yes — pheromones send chemical signals about sex and attraction from our armpits to potential mates. But, despite what you might have heard, there is no conclusive research confirming...

Whether you're picking a place to eat or something to watch, machine learning helps us make smarter decisions in our daily lives.

A very clever proof of Euler's characteristic formula using spanning trees.

When two young Mormon missionaries knock on Julia Sweeney's door one day, it touches off a quest to completely rethink her own beliefs, in this excerpt from Sweeney's solo show "Letting Go of God."

It may seem that we're living in a borderless world where ideas, goods and people flow freely from nation to nation. We're not even close, says Pankaj Ghemawat. With great data (and an eye-opening survey), he argues that there's a delta...

If you spook a spitting cobra, it might literally shoot venom at your eyes... And our ancestors might have caused them to do this, evolutionarily speaking.

These days, almost all of us feel pressed for time. Leadership expert Dorie Clark shares three hidden reasons people fall into an endless loop of feeling constantly busy, and invites you to question what really motivates how you spend...

The report you've been putting off is due tomorrow. It's time to buckle down, open your computer ... and check your phone. Maybe watch your favorite YouTube channel? Or maybe you should just start in the morning? This is the cycle of...

It's 1950. Anti-communist sentiment in the United States is at an all-time high. Senator Joseph McCarthy claims he has a list of communists who are influencing government policy. He makes his first accusation without providing any...

Most of us will do anything to avoid being wrong. But what if we're wrong about that? "Wrongologist" Kathryn Schulz makes a compelling case for not just admitting but embracing our fallibility.

How do you engineer stealth? Sneak a peek at the methods employed to hide aircraft and boats from detection.

Paul Andersen introduces science for the science classroom. He starts with a brief description of Big Data and why it is important that we prepare future scientists to deal intelligently with large amounts of data. He explains the...

In March 2009, North Korean soldiers captured journalist Euna Lee and her colleague Laura Ling while they were shooting a documentary on the border with China. The courts sentenced them to 12 years of hard labor, but American diplomats...