Watching a movie at home isn't quite the same experience as seeing it at a movie theater -- but why? Learn how changes in aspect ratio affect every film, and why your television might not be delivering the whole picture.

It seems like a good idea to stretch before exercising, but does it actually prevent injuries, or improve your performance?

We all get a jittery after sitting still for too long. But some people experience an irresistible urge to move their legs, and it can seriously affect their daily lives.

SciShow explains what really causes those popping sounds your joints make -- fluid dynamics, people! -- and what you should watch out for if you're a habitual knuckle-popper.

Hunger claws at your belly. It tugs at your intestines, which begin to writhe, aching to be fed. Being hungry generates a powerful and often unpleasant physical sensation that's almost impossible to ignore. After you've reacted by...

If you've spent any time trying to explode a pumpkin with rubber bands you know that they have a distinct smell to them when stretched, and you have physics to thank for that.

What do Euclid, 12-year-old Einstein, and American President James Garfield have in common? They all came up with elegant proofs for the famous Pythagorean theorem, one of the most fundamental rules of geometry and the basis for...

Earth is not flat. So, representing it on a flat surface can be challenging and always requires compromises.

Learn all about how sound works with Jessi and Squeaks on SciShow Kids!

Jessi and Squeaks look at some amazing creatures that they found in their garden: snails and slugs!

In this video Paul Andersen explains how metallic bonding structure creates the different properties of metals. The electron sea model explains how the positive nuclei are locked into a negative sea of delocalized electrons. This...

Feeling stiff, tired, or off balance? These 5 quick chair stretches can wake up your body, calm your mind, and transform your entire day, without ever getting down on the floor. Perfect for beginners and busy people who want to feel...

In this video we are going to focus on graphing the square root function using a basic medium and difficult example.

The number is the same but the placement is different. How can we determine what the transformation is just by the placement?

Transform your day and feel younger with 5 simple but powerful chair moves that will instantly boost your energy, improve flexibility & mobilize your whole body. Whether you’re working from home, at the office, or just waking up, these...

When you think about robots, do you think of something made from metal? What if robots could have stretchy, flexible skin just like humans? How would they detect when someone tapped them on the shoulder or something rubbed against their...

Elves have taken many forms across cultures and centuries. In early Norse and Germanic myths, they were powerful and mysterious beings connected to nature and magic. Some were seen as helpful spirits, while others were blamed for illness...

Tight from sitting all day? Try these two powerful chair yoga stretches to instantly release neck tension and discomfort from sitting at your desk or working on a computer all day. These quick and effective seated yoga moves help relieve...

A video entitled "Graph Cube Root" that shows how to use the a, k, and h values in the generical cube root equation to shift the parent function and graph the cube root equation.

Chair yoga is a great way to get started on your fitness journey, perfect for beginners!! Enjoy this accessible and effective beginner 3 minute routine to strengthen your core and more!

Transform your day in just 5 minutes! These 5 powerful stretches are perfect for boosting energy, improving posture, and melting away stress. Whether you need a quick morning boost, relief from sitting at your desk or a relaxing evening...

Are you struggling with lower back pain or a sudden sciatica flare up? Discover the one tight muscle that might be making your pain worse, the piriformis! Try these quick & simple stretches to target the piriformis and help relieve...

Looking to boost flexibility, reduce stress and improve mobility, all from the comfort of your chair? Feel more energized and relaxed in just minutes with 5 easy and effective chair yoga stretches you can add to your day, perfect for...

Exercise Programs for Mom and Baby