How does heat affect airplanes? Turns out heat, speed and density connect to create dangerous situations.

There are labs so silent that most people can't stand being inside them, but that stillness lets us run some of our most sensitive experiments.

In this video Paul Andersen explains how linear momentum is conserved in all collisions. In completely elastic collisions the kinetic energy of the objects is also maintained. Several examples and demonstrations are included.

Our respiratory systems do a great job of protecting us, but they are no match for the smallest pollution particles created by the modern world.

Sunbeams shooting down through the clouds make for some great photographs, but what's the science behind these beautiful rays of light?

Mr. Andersen shows you how to read a position vs. time graph to determine the velocity of an object. Objects that are accelerating are covered in this podcast. He also introduces the tangent line (or the magic pen).

On earth a sound echo lets you hear something again. Over great distances, a light echo can let you see something again, specifically an exploding star.

Hot Air Balloons! They're those big, beautiful balloons people can float up to the sky in-- but how do they get up there?!

In this video Paul Andersen explains how gases differ from the other phases of matter. An ideal gas is a model that allows scientists to predict the movement of gas under varying pressure, temperature and volume. A description of both...

In this video Paul Andersen explains how light that is perfectly reflected creates specular reflection. The angle of the incident ray is equal to the angle of the reflected ray. Specular reflection is also known as mirror-like...

Gases are everywhere, and this is good news and bad news for chemists. The good news: when they are behaving themselves, it's extremely easy to describe their behavior theoretically, experimentally and mathematically. The bad...

How does heat affect airplanes? Turns out heat, speed and density connect to create dangerous situations.

Howcast - Learn how to do the bouncing bread roll trick from professional illusionist Ben Nemzer in this Howcast magic tricks video.

Howcast - Learn how to relax with three quick and easy anti-stress tricks recommended by wellness consultant Samantha Ibarguen in this Howcast video.

Howcast - Learn five flash photography techniques from commercial photographer Dan Bracaglia in this digital photography lesson from Howcast.

Howcast - Learn how to improve your running form from competitive runners Doug Oldiges and Stephanie Coburn in this Howcast video.

Howcast - Learn what blocking is on a pedal steel guitar in this Howcast video.

Learn how to store wine properly with these tips from wine expert Gary Vaynerchuk of the Wine Library.

In this physics science fair project, students will investigate the rebound height limits and linearity of dropped bouncy balls.

Town Singer for Social Integration:An artist using her music to help South Africa overcome its past and strive towards living together in an integrated society regardless of color.

Coefficient of restitution: What is it? How is it related to the general bounciness of balls and other objects? Here's a quick, simple and basic explanation of the coefficient of restitution for kids and laymen. Basketballs bounce a lot,...

In this lesson, me (Coach Danny) and Elijah begin to learn how to bounce and dribble a basketball. The simple progressions are great for preschool and kindergarten grade students.



I'm putting together these 'kindy...

During World War 2, a British engineering scientist had a Big Idea. The Big Idea was to bomb a German dam, causing massive water loss to German industry. His plan was to drop bombs from low-flying aircraft, and skip them into the dam...

In this video, we will delve into the fascinating world of Tesla UI cloning, exploring the project's objectives and giving viewers a preview of the exciting journey ahead.