Artist Doris Mitsch invites us to revel in the wonders of nature through her dazzling photography: stacked images of starlings in flight, hawks surfing thermal updrafts, bats echolocating through the night sky and more. Revealing the...

This is a video about nothing. Hope you learn something!

From the 1650s through the late 1800's, European colonists descended on South Africa. They sought to claim the region, becoming even more aggressive after discovering the area's abundant natural resources. To support their claims to the...

In the physical world, many seemingly basic things turn out to be built from even more basic things. Molecules are made of atoms, atoms are made of protons, neutrons, and electrons. So what are numbers made of?

Billions of galaxies, each with billions of stars, each with .... rather a lot of particles in them. And then there's dark matter, black holes, planets, and the particles and radiation in between the stars and galaxies. But.... is the...

Though the first written number system can be dated back to 2500 years ago in Mesopotamia, a zero-like symbol did not appear until 7th century CE India. Jessica Oreck and Rachael Teel track the evolution of zero from a dot to the symbol...

Since the days of Ancient Greece, philosophers and scientists have been wondering: What is space? Is the absence of things.... a thing? These questions continued to fascinate physicists in the modern era, leading Isaac Newton, Ernst...

Bladeless fans can look like magic. How does all that air come out of that empty ring?! Well, it turns out that bladeless fans are more like a conventional fan than you might think, but that doesn't mean there isn't some really cool...

Pipes can freeze in the winter, but you never hear about fire hydrants freezing. What makes them safe from the cold temperatures in winter time?

SPOILERS: It doesn't end well.

It's okay to be small?

Just how small are atoms? And what's inside them? The answers turn out to be astounding, even for those who think they know. This fast-paced animation uses spectacular metaphors (imagine a blueberry the size of a football stadium!) to...

The time it takes to you to tinkle is probably about the same as an elephant, even though an elephant's bladder is over 100 times larger. How can that be right? The answer is a combination of physiology and fluid dynamics.

Stay informed. Stay cautious, but not scared. Listen to scientists and public health officials and follow their guidance. By protecting yourself, you’re protecting the most vulnerable among us. Together we can flatten the curve on...

Because of space physics, one faraway asteroid is likely the progenitor of almost a third of all the meteorites on Earth.

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If you want to...

Hey... what's matter? No no no, not what's THE matter. What's MATTER? In this episode of Crash Course Kids, Sabrina talks about what matter is and the three states of matter: Solid, Liquid, and Gas. She also does a quick experiment that...

In Poem

This video shows ways to make 10, gives practice with make 10 facts and practice completing make 10 facts.



Perfect for kindergarten, 1st grade, and early learners, this video covers essential number bonds, making 10...

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