So... what makes the wind? You might be surprised to learn that it has to do with two of Earth's spheres; The Hydrosphere and the Geosphere. In this episode of Crash Course Kids, Sabrina takes us to the beach to chat about how the wind...

Things get weird under pressure.

Design gives form to the future, says architect Bjarke Ingels. In this worldwide tour of his team's projects, journey to a waste-to-energy power plant (that doubles as an alpine ski slope) and the LEGO Home of the Brick in Denmark -- and...

In this video Paul Andersen explains how object interactions can add or remove mass or energy from a system.

Renewable energy may be the way of the future, but in order to store that energy to make our grids more sustainable, we might need to take a look back at some battery technologies of the past.

What if we took out more greenhouse gases than we put into the atmosphere? This hypothetical scenario, known as "drawdown," is our only hope of averting climate disaster, says strategist Chad Frischmann. In a forward-thinking talk, he...

Some people have this idea that dead batteries bounce if you drop them, but is it true?

It's really difficult for life to create blue pigments, but the color can appear in a handful of compounds that create just the right conditions to reflect blue photons.

Energy is the most powerful and useful concept in all of physics, but what exactly is it?

According to the cosmological principle, the universe is more or less the same in all directions. But what happens when we put this to the test?

Black holes are among the most destructive objects in the universe. Anything that gets too close to a black hole, be it an asteroid, planet, or star, risks being torn apart by its extreme gravitational field. By some accounts, the...

Clean, renewable energy is becoming more and more common in our everyday lives. But, as our cars and buildings become more green, tens of thousands of airplanes fly every day using petroleum-based fuel, and there's seemingly no end in...

Climate change is the epic challenge of our lives, and community leaders like Rahwa Ghirmatzion and Zelalem Adefris are already working on sustainable, resilient solutions. Through their organizations in Buffalo and Miami, they're...

The Sun: an entity worshipped as a god throughout time and across cultures. The source of all life and sustenance for our little blue space rock, and also a force of unthinkable destructive power. But soon humanity will reach out its...

How can architects build a new world of sustainable beauty? By learning from nature. Michael Pawlyn describes three habits of nature that could transform architecture and society: radical resource efficiency, closed loops, and drawing...

Even science can't yet explain these 7 extremely cool, weird phenomena in the universe, despite decades or even centuries of research.

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In the animal kingdom, sleeping can be dangerous. Lying completely motionless and unconscious for hours at a time is just asking for trouble. There are, however, some sleepy risk-takers who spend almost all of their days snoozing.

Taking photos used to require technical knowledge and time in a lab, but now we have electronic devices in our pockets that do all of the work for us. How do these miracle devices do it?

Genomics pioneer Craig Venter takes a break from his epic round-the-world expedition to talk about the millions of genes his team has discovered so far in its quest to map the ocean's biodiversity.

Taylor Wilson believes nuclear fusion is a solution to our future energy needs, and that kids can change the world. And he knows something about both of those: When he was 14, he built a working fusion reactor in his parents' garage. Now...

Breast milk grows babies' bodies, fuels neurodevelopment, provides essential immunofactors and safeguards against famine and disease -- why, then, does science know more about tomatoes than mother's milk? Katie Hinde shares insights into...

The universe began in a Big Bang nearly fourteen billion years ago, and has been expanding ever since. But how does the universe expand and what is it expanding into? Sajan Saini explains the existing theories around the Big Bang and...

Everyone's talking about the "Internet of Things," but what exactly does that mean for our future? In this thoughtful talk, economist Marco Annunziata looks at how technology is transforming the industrial sector, creating machines that...

Want to learn more about the topic in this week's video? Here are some key words/phrases to get your googling started: - Lifting Condensation Level (LCL): The altitude at which the water vapor in rising air begins to condense - Adiabatic...