No other placental mammal that we know of prefers one side of the body so consistently, not even our closest primate relatives. But being right-handed may have deep evolutionary roots in our lineage. And yet, being a leftie does seem to...

You may think you just have to run more, or lift more weights—but the truth is, there is a scientific way to increase your athletic ability! Join Stefan Chin for a new episode of SciShow and learn how you might be able to perform better,...

This video was made with the support of the Heising Simons Foundation.





This video is about the Ozma problem of distinguishing the chirality (ie left-handedness or...

As we forge ahead into the new year, let’s take some time to thank the intrepid researchers, volunteers, and even the occasional dog who came before us, made sure our food and drugs are free from poison, and built the devices that make...

Looking for a mental or physical edge in sports? Here, we'll explore some of the ways that you might be able to perform better while staying safer in your preferred sports ball game.

Scottish funnyman Rory Bremner convenes a historic council on the TEDGlobal stage -- as he lampoons Gordon Brown, Barack Obama, George W. Bush and a cast of other world leaders with his hilarious impressions and biting commentary. See if...

Only 10% of the world is left handed, so why are so many athletes lefties?

We've got two perfectly good hands attached to two perfectly good arms, so why do most people prefer to use one over the other for common tasks?

The DNA inside our cells almost exclusively twists in one direction, but the reason for this might be out of this world!

When you look in mirror, and see what you think is a perfect reflection, you might be looking at universe whose laws are fundamentally different.

Neutrinos are weird. But all the big unsolved problems in physics are somehow connected to one unsolved mystery: Why do neutrinos have mass?

The shape of molecules is super important to life as we know it. In this episode of Crash Course Organic Chemistry we’re learning about stereochemistry and how to identify molecules as chiral or achiral. And as always, we’ll be doing a...

On October 1, 1957, thalidomide was introduced as a new morning sickness cure. Everything seemed great until later the next year, when thousands of infants were born with severe birth defects.

Interaction between cosmic rays and early life-forms may be responsible for the fundamental property of chirality, or “handedness,” in biological molecules.

Lefties, southpaws, goofy footers, katy-handeds, mollydookers. Whatever you call them, 10% of the population is left-handed. But are there any differences between their brains and those of their right-handed friends? Why are some people...

Dr. Aaron Burton and Dr. Marc Fries, Planetary Scientists, talk about searching for organic material in meteorites from around the solar system. They share what we're finding that helps us understand the fundamentals of life here on...

Retired NASA astronaut John Grunsfeld hosts this six-part mini-series about the tools used on the Hubble Space Telescope servicing missions. Hubble was uniquely designed to be serviced in space so that components could be...

Individual follow-along ideas for PE, including warm-ups, fitness, volleyball skills (digging, setting, serving), target hitting, using a volleyball, cones and a bucket

In this video, the teacher explains how to interpret a two-way frequency table to describe categorical data. They differentiate between categorical and quantitative variables, and discuss the concepts of frequency and count. The teacher...

In this video I explain how the production possibilities curve (PPC) shows scarcity, trade-offs, opportunity cost, and efficiency. This is the first graph you are going to learn in your economics class.

Experts in neuroscience help us understand why the human brain is a marvel of structure and function. This video looks at differences between the right side of our brain and the left side. The left brain tends to be seen as the more...

In this video, we learn about conditional probability through the example of determining if someone is right or left thumbed based on their right-handedness. The teacher explains how to read a tree diagram and fills it in with...