A mini-lesson on observational patterns.

This week the FDA approves the first ever blood test for diagnosing concussions, and a group of scientists develop a neural network that could save you a trip to the eye doctor.

Inside you, a daily battle is being waged and your immune system is at the frontline. Most of the time, you may not even notice it's there, but over the course of your life your immune system will guard you against hundreds of...

Explore the endocrine system with the Amoeba Sisters! This video briefly discusses endocrine vs exocrine before showing major endocrine glands and discussing examples of hormones released by each gland. Video also provides an example of...

Even though you probably don't choose to spend a lot of time thinking about it, your pee is kind of a big deal. Today we're talking about the anatomy of your urinary system, and how your kidneys filter metabolic waste and balance salt...

From something as familiar as our bodies to things vast as the formation of galaxies, we can observe the process of self-assembly, or when unordered parts come together in an organized structure. Skylar Tibbits explains how we see...

In this video Paul Andersen explains how the angular momentum of a system can be calculated by determining the angular momentum of all individual objects within the system. An inquiry activity using a gyroscope is also included.

Modern buildings with floor-to-ceiling windows give spectacular views, but they require a lot of energy to cool. Doris Kim Sung works with thermo-bimetals, smart materials that act more like human skin, dynamically and responsively, and...

It's time to heat things up! LITERALLY! It's time for Hank to talk about the history of Thermodynamics!!! It's messy and there are a lot of people who came up with some ideas that worked and other that didn't and then some ideas that...

It starts with a tickle in your throat that becomes a cough. Your muscles begin to ache, you grow irritable, and you lose your appetite. It's official: you've got the flu. It's logical to assume that this miserable medley of symptoms is...

We might be closer to figuring out how our solar system was born and NASA has two finalists for its next New Frontiers mission.

Want to do more than talk to your refrigerator and control your lights with your phone? Hank explains how close we are to the smart home that can do everything for us.

Despite the rise of renewable energy, the backbone of the power grid is fossil fuels. Adapting the grid to green energy sources is more complicated than flipping a switch.

The "broken" US political system is actually working exactly as designed, says business leader and activist Katherine Gehl. Examining the system through a nonpartisan lens, she makes the case for voting innovations, already implemented...

The laws of thermodynamics are cornerstones of physics - but one of them is more breakable than it appears.

Everyone experiences pain -- but why do some people react to the same painful stimulus in different ways? And what exactly is pain, anyway? Karen D. Davis walks you through your brain on pain, illuminating why the "pain experience"...

They say the pen is mightier than the sword, and authorities have often agreed. From outlawed religious tracts and revolutionary manifestos to censored and burned books, we know the potential power of words to overturn the social order....

Given that Earth’s magnetic field helps protect its life-sustaining atmosphere, you might think that the stronger a planet’s magnetic field, the better. But as it turns out, some planets’ relationships with their magnetic fields are a...

Radio, Cinema, and Television have been staples in news coverage, entertainment, and education for almost 100 years. But... where did they all come from? Who started what and when and why? In this episode, Hank Green talks to us about...

When teachers and families work together, everyone wins, says education technology entrepreneur and TED Fellow Heejae Lim. She shines a light on an underutilized resource in US public education -- a family's love for their children --...

You’re probably aware that your blood can be A, B, AB or O, but it turns out that blood types can get a lot more complicated than that!

1, 2, 3, 4, 5, 6, 7, 8, 9 and 0. With just these ten symbols, we can write any rational number imaginable. But why these particular symbols? Why ten of them? And why do we arrange them the way we do? Alessandra King gives a brief history...

Imagine it's late 1990, and you've just met a nice young man named Tim Berners-Lee, who starts telling you about his proposed system called the World Wide Web. Ian Ritchie was there. And ... he didn't buy it. A short story about...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on physical quantities.


TERMS
Physical quantities - the properties of a material or system that can b
e measured
>Standard units
- Weight -...