Daniel Lismore's closet is probably a bit different than yours -- his clothes are constructed out of materials ranging from beer cans and plastic crystals to diamonds, royal silks and 2,000-year-old Roman rings. In this striking talk,...

Paul Andersen explains how X inactivation works in mammals. This process was first described by Mary Lyon. Each cell in a female will have on activated and one inactivated X chromosome. This explains why almost all calico cats are...

No Judging: At one point you've probably put a finger in your ear and dug out some rather unsightly ear wax, but why does your body produce this yellowy substance in the first place?

Jessi and Squeaks are thinking of visiting the redwoods, the tallest trees in the world, but there's lots for them to learn before they make their trip! First Grade Next Generation Science Standards Disciplinary Core Idea: LS1.A:...

In this video Paul Andersen explains how gravitational forces differ from the other three fundamental forces; electromagnetic, strong, and weak. Gravitational forces are always attractive and operate at all scales. Even though...

Paul Andersen discusses cell communication. He begins by explaining how he communicates with other individuals using various forms of electronic communication. He them explains how cells communicate when the distance between them is...

Jessi and Squeaks have talked about how wells move water from one place to another before; now they're going to show you how to build your very own so you can see for yourself!

Margrethe Vestager wants to keep european markets competitive -- which is why, on behalf of the eu, she's fined Google $2.8 billion for breaching antitrust rules, asked Apple for $15.3 billion in back taxes and investigated a range of...

Learn why we itch and what scientists have discovered that may help chronic itchiness!

Paul Andersen explains how hugs between tissues can help maintain homeostasis. Countercurrent heat exchange allows heat to stay within the core of the body. Close contacts between the capillaries and alveoli allow our body to maintain...

Today we are talking about art and aesthetic appreciation. What makes something an artwork? Can art really be defined? Is aesthetic value is objective or subjective? Can taste be developed? How?

While working with kids who have trouble speaking, Ajit Narayanan sketched out a way to think about language in pictures, to relate words and concepts in "maps." The idea now powers the FreeSpeech app, which can help nonverbal people...

The Deep Space Network is a special network of radio dishes for tracking and talking to spacecraft, and it contributes some cool scientific observations of its own too.

Unlocking the mysteries of ancient ceramics is a bit complicated. Radiometric dating tells us the age of the clay, but when was it first shaped by a human? We can find out by blasting it with heat again!

You might’ve heard people talking about how awesome psychotherapy can be, but is it actually effective?

From Shakespeare's plays to modern TV dramas, the unscrupulous schemer for whom the ends always justify the means has become a familiar character type we love to hate. For centuries, we've had a single word to describe such characters:...

We may be living IN a simulation (according to Elon Musk and many others), but that doesn't mean we don't need to perform simulations ourselves. Today, we're going to talk about good experimental design and how we can create controlled...

In this video Paul Andersen explains how conservative forces can be used to store potential energy in an object or a system. The work done is equal to the amount of potential energy in the object. The following conservative forces are...

We've learned a bit about how hummingbirds see motion in an unexpected way, and scientists are working on a potential new malaria vaccine by genetically manipulating the parasite that causes it!

Continuing in our journey of understanding motion, direction, and velocity... today, Shini introduces the ideas of Vectors and Scalars so we can better understand how to figure out motion in 2 Dimensions. But what does that have to do...

Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane.

Some people question whether Shakespeare really wrote the works that bear his name _ or whether he even existed at all. Could it be true that the greatest writer in the English language was as fictional as his plays? Natalya St. Clair...

Hank continues our series on the four fundamental forces of physics by describing the weak interaction, which operates at an infinitesimally small scale to cause particle decay.

Ever since humans found out about germs, we’ve gone a bit overboard inventing antibacterial soap and antibiotics and antifungals. But despite our aversion to them, microbes aren’t all bad, and some of them could even help us...