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What if the Earth were Hollow?

Adults Physics Science World
What if there were a tunnel through the middle of the earth and you jumped in?

How does asthma work? - Christopher E. Gaw

Adults Health Human Science
More than 300 million people around the world suffer from asthma, and around 250,000 people die from it each year. But why do people get asthma, and how can this disease be deadly? Christopher E. Gaw describes the main symptoms and treatments of asthma.

A Robot Just Performed the First-Ever Surgery Inside the Human Eye

Adults Health Technology
A surgeon uses controls to guide the robot.

How do focus groups work? - Hector Lanz

Adults Business Marketing Psychology
Focus groups have been widely used by organizations and individuals to find out how their products and ideas will be received by an audience. From the usage of household products to a politician's popularity, almost everything can be explored with this technique. But how are focus groups put together? And how did they come about in the first place? Hector Lanz explains how focus groups work.

4 terrible things that happen to your body when you run too much

Adults Health Sports
Running can bring a lot of health benefits to you, but that's not always the case when you do it for too long. These are 4 terrible things that can happen to your body when you run too much.

Binging with Babish: Ratatouille (Confit Byaldi) from Ratatouille

Adults Creativity Food
Remy is an especially-clean-looking rat that's been given the gift of Gusteau's gastronomy. Let's see if his signature dish is worth staking an entire restaurant's reputation upon for the sake of a pun.

How the popsicle was invented | Moments of Vision 11 - Jessica Oreck

Adults Food History Creativity
Each year, approximately 2 billion popsicles are sold worldwide. But where did the idea for this tasty treat come from? In the eleventh installment of our 'Moments of Vision' series, Jessica Oreck shares the distracted origins of the popsicle.

Check your intuition: The birthday problem - David Knuffke

Adults Math Society
Imagine a group of people. How big do you think the group would have to be before there's more than a 50% chance that two people in the group have the same birthday? The answer is ... probably lower than you think. David Knuffke explains how the birthday problem exposes our often-poor intuition when it comes to probability.

What humans will look like in 1,000 years

Adults Future Human
There will eventually be a day where prosthetics are no longer just for the disabled. However, it's not just our outside appearance that will change - our genes will also evolve on microscopic levels to aid our survival. For example, an Oxford-led study discovered a group of HIV-infected children in South Africa living healthy lives. It turns out, they have a built-in defense against HIV that prevents the virus from advancing to AIDS.

Climate Lab - Climate Lab - Why your old phones collect in a junk drawer of sadness

Adults Gadgets Global Warming Technology
Smartphones shouldn't be so disposable. Could fixing the way we make our phones help solve climate change?

Oxygen's surprisingly complex journey through your body - Enda Butler

Adults Biology Human Science
Oxygen forms about 21% of the air around us. In your body, oxygen forms a vital role in the production of energy in most cells. But if gases can only efficiently diffuse across tiny distances, how does oxygen reach the cells deep inside your body? Enda Butler tracks the surprisingly complex journey of oxygen through your body.

Are You Thinking About Breathing While You Read This? (Now You Are)

Adults Health Human Science
What really drives us to breathe? And how dangerous is it to hyperventilate and hold your breath?

What are the challenges of nuclear power? - M. V. Ramana and Sajan Saini

Adults Global Warming Technology
Our ability to mine great amounts of energy from uranium nuclei has led some to bill nuclear power as a plentiful, utopian source of electricity. But rather than dominate the global electricity market, nuclear power has declined from a high of 18% in 1996 to 11% today. What happened to the great promise of this technology? M.V. Ramana and Sajan Saini detail the challenges of nuclear power.

What Are The Best Universities In The World?

Adults Culture Education
Ivy League schools may be famous, but none of them make it in the top three. So what are the world's best universities?

What happens when you bring meditation to public schools

Adults Education Spirituality
Classrooms all over the country are trying something new: sitting and breathing.

GoPro Karma: Desert Canyons with Dad

Adults Family Film
Join Dorothy and her Dad Garrett as they adventure to the Great American Southwest for a day of exploring some of Earth's most majestic desert landscapes. Whether they're capturing beautiful aerials with Karma, or running through the canyons with Karma Grip, smooth cinematic shots have never been this easy.

What is entropy? - Jeff Phillips

Adults Physics Science
There's a concept that's crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air leaks out of a punctured tire. It's entropy, and it's notoriously difficult to wrap our heads around. Jeff Phillips gives a crash course on entropy.