Sounds that animals make can be really different, and it turns out that there's a reason why some species communicate with certain sounds.

You may have satisfied your inner five-year-old by learning why the sky is blue, but where does the ocean's color come from?

Hot off the presses, this week has been cool! Researchers have discovered the first room-temperature superconductor, and another group has created a type of paint that actually stays cooler than the environment around it!

In this video Paul Andersen explains how stimulated emission can be used to create coherent light. When an atom absorbs a photon it moves to a higher energy level through stimulated absorption. It may then release a photon and moves to...

The deep-sea dragonfish is a predator that lives deep in the Pacific Ocean. Like many other deep sea predators, it's got an oversized jaw and a bioluminescent appendage to attract prey, but it does have one weird (and strangely useful)...

Black holes are everywhere, including at the center of our galaxy. But because they’re invisible they’re quite difficult to study. Looking at the disks of material surrounding them, however, can give us tons of clues about how they...

Lots of animals can change the color of their skin, but there's nothing quite like the chameleon sand tilefish, which can change its appearance in an instant and flash the colors of the rainbow.

We can all appreciate pretty shiny things, but what makes them shiny?

You may have had an ultrasound before, and wondered what that gel does. Well, that weird alien goop has a purpose, and it has to do with being like our weird human skin.

Fabric brighteners can liven up your old, faded clothing. But they don’t actually clean your clothes, and they’re often banned in the military!

The technology we use to keep cool is heating the world in a vicious feedback cycle, so we need to improve it and use it less.

Remember Sol, the closest star to Earth? We like to call it The Sun and we haven't talked about it in a little while. One interesting thing about the energy we get from the sun is that it's not absorbed the same way by different...

Light is everywhere … but it’s not as predictable as you might think. It’s a wave that travels in straight lines, yet it also reflects off of surfaces, refracts through various materials, and generally changes direction all the time!...

Self-reflection could link to negative feelings, but it could also be helpful if you know how to avoid those pitfalls. So let’s learn how self-reflection works and get to know yourself in a healthy way!

This video introduces the concept of sampling in statistics by using relatable examples. It begins by explaining the challenge of collecting data from an entire population, such as residents in a town, and introduces sampling as a...

This video provides an introduction to basic statistical concepts, focusing on the use of bar charts as a visual tool for organizing and understanding data. It explains the components of a bar chart, such as the X and Y axes, and how...

A video entitled "Coordinates of Reflections" that covers reflections over the x-axis and the y-axis.

This video, entitled "Reflection," describes the literary technique of reflection as well as how and why authors use it.

This video, entitled "Reflecting Angles," shows how angles can be reflected over a line of reflection.

Howcast - Learn the pros and cons of wedding packages from celebrity wedding planner Barbara Esses in this Howcast video.

Howcast - Learn how to read a person's posture in this body language video from Howcast.

Howcast - It's never easy healing a broken heart, especially after your first love. Find out how to pick up the pieces and get on with your life.

Howcast - Learn how to reflect objects with Adobe Illustrator from expert Will "Focus" Dubois in this Howcast video.

Howcast - Learn five ways to make your roof eco-friendly in this Howcast video featuring Alegre of Green and Greener.