I was in Arizona recently for Phoenix Comic-Con, and had the amazing pleasure of seeing one of Earth's greatest natural wonders… the Grand Canyon. More than a mile deep, and several miles across, it just defies belief. But I couldn't...

You and the professor have driven your DeLorean back to the past to fix issues with the spacetime continuum caused by your time traveling. But another DeLorean appears with older versions of you and the professor. The professors panic...

In March, FEMA ended its temporary housing program for people affected by Hurricane Irma, which slammed the Florida Keys in September 2017. But as rebuilding continues after one of the costliest storms in U.S. history, shelter for...

MacArthur winner Sendhil Mullainathan uses the lens of behavioral economics to study a tricky set of social problems -- those we know how to solve, but don't. We know how to reduce child deaths due to diarrhea, how to prevent...

Is it better to walk or run when it's cold out? If you run, then you have to deal with wind, wind chill, etc, but your body generates more heat. If you stay still, standing or walking slowly, you don't generate as much...

When you feel like you can get so much done, and nobody can stop you, you might be experiencing what psychologists call "flow." But what’s actually happening to your brain when you're in that state?

What if super speed wasn't just the stuff of epic comic book stories? Is it scientifically possible to be super speedy? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic they can be to us mere...

Fun with Ferrofluid

Why are all the gas stations, cafes and restaurants in one crowded spot? As two competitive cousins vie for ice-cream-selling domination on one small beach, discover how game theory and the Nash Equilibrium inform these retail hotspots.

New York was planning to tear down the High Line, an abandoned elevated railroad in Manhattan, when Robert Hammond and a few friends suggested: Why not make it a park? He shares how it happened in this tale of local cultural activism.

In this episode we talk about distance in space and time and answer "How far away is tomorrow?"

Scott Dinsmore quit a job that made him miserable, and spent the next four years wondering how to find work that was joyful and meaningful. He shares what he learned in this deceptively simple talk about finding out what matters to you —...

Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential growth. This lesson will leave you wanting to grab a piece of paper...

There are 600 million women in India -- yet they are rarely seen outdoors after sunset because of safety concerns like harassment and catcalls. On a mission to create safer public spaces, women's rights advocate Srishti Bakshi talks...

Reading and stories can be an escape from real life, a window into another world -- but have you ever considered how new fictional experiences might change your perspective on real, everyday life? From Pride and Prejudice to Harry...

It is time to close the funding gap for Black female-led start-ups the world over, says entrepreneur Temie Giwa-Tubosun, whose company LifeBank delivers life-saving medical supplies to remote areas in Africa. Today, LifeBank operates...

There is more than one way to measure the same thing! Jessi and her friend The Giant Squidstravaganza (Squid for short) explore the differences between the Metric System and the Imperial System.

The world owes much of its cultural legacy to Constantinople's walls. When Constantinople was under seige by neighboring enemies, the Roman city's elaborate system of moats, outer walls, and inner walls stood tall. Surviving numerous...

In this shorts video we will answer a standardized math test question by comparing rates in miles per hour. We will read the information provided. We will determine the miles per hour from a graph. We will understand the graph shows a...

In this shorts video we will be writing a real world linear system. We will recognize that each equation in the given systems is written in slope-intercept form. We will understand that m represents the slope which is the unit rate in...

In this math video we will find unit rate using a table. We will be given a relationship where both quantities are fractions. We will set up and use a table to find the unit rate. We will find the reciprocal and multiply the...

In this video we will use a double bar diagram to model how to find unit rate with two fractional quantities. We will interpret the information given. We will understand that unit rate is a rate where the second quantity is 1. I will...

In this math video we will learn how to find a unit rate using a double number line. This visual model will make easy work of interpreting the given relationship and how to determine the unit rate with two fractional values with ease. ...

In this math video we will write and simplify a complex fraction to find unit rate. We are given a relationship and asked to find the unit rate. We will write the relationship as a ratio in fraction form. Since both of the quantities...