In this video Paul Andersen explains how air pollution is any chemicals in the atmosphere that negatively affect human health. Primary pollutants (like CO, VOCs, NOx, SO2, PM, and Lead) as well as secondary pollutants (like Ozone,...

By the end of the 19th century, nearly 40% of American cars were electric. But these vehicles had a few major problems — early car batteries were expensive and inefficient, and the vehicles were twice the price of a gas-powered car. And...

In this video Paul Andersen explains how fossil fuels are formed when organic material is heating and squeezed in an anaerobic environment. Formation, extraction, advantages, and disadvantages are discussed for coal, petroleum and...

In this video Paul Andersen explains how energy can be transferred from one system to another. In a closed system the energy can be transferred as either work or heat. Thermal energy transfer is know as energy transfer through heat. ...

When will be run out of oil? Why haven’t we run out of oil already?



In 1977, President Jimmy Carter went on TV and declared that the biggest crisis that we were going to face in our...

Howcast - Earth Day is coming up and your holier-than-thou, tree-hugging friends are driving you crazy. Shut them up by making yourself look like the meanest, greenest mother on the block.

Howcast - Check out this Portal 2 walkthrough and find the first three vitrified doors with this online demo.

Howcast - Check out this Portal 2 walkthrough and beat Chapter 6 - Part 2: You'll Know When the Test Starts with this online demo.

Howcast - Learn about rye whiskey from the experts at NYC's Rye House in this Howcast video.

Howcast - Learn all about substance abuse from Dr. Paul Hokemeyer in this Howcast video.

Howcast - Frustrated that gum got stuck in your carpet or clothing? Put Bazooka Joe in his place using these tips.

Howcast - Ethanol has been used in vehicles since the early 1990s to improve fuel economy and to reduce the amount of carbon monoxide produced by the car's engine. Here are some guidelines for using ethanol in your car.

“Interconnected Ecosystems” explores interdependent relationships between living things in various biomes.

“What Is Energy?” describes what kinds of actions are work, who and what can perform work, and how these things get the energy to do the work.

“Stored Energy” explains how potential energy is stored, how objects have potential energy, and how potential energy is changed to kinetic energy.

Cuba's First Short-lived Art Festival:Cuba's first short-lived art festival lasts barely an hour and a half as the works of art melt, go up in flames, or are eaten by children.

The BMW H2R is a record-breaking hydrogen-powered car that combines existing systems with a new concept. It features a modified 12-cylinder engine that burns hydrogen instead of petrol, emitting only water vapor. With its streamlined...

Do vehicles really combust into fireballs when they collide? Are doors and hoods sent flying from the blast? Or is it all just movie myth?

Join us as we learn the process behind an explosion, what makes engines work and how fires...

Gasoline (petrol) and diesel are extracted from the same raw material crude oiland pass through various levels of refinement. Yet, they have different thermal characteristics, making them suitable for very different purposes. For...

Contrary to popular belief (as set by movies), cars are not very prone to explosions, and even a car that is on fire is very unlikely to explode. The necessary conditions for an explosion to take place are not met after a car experiences...

Discover the processes involved in using vegetable oil as a biofuel. Could it become a viable alternative to fossil fuels? Chemistry - Chemical Industries - Learning Points. Vegetable oil is made of long chains of carbon atoms similar to...

Offshore oil spills can lead to decades of ecological harm for marine life. How can we clean-up oil spills and limit damage to the environment? Earth Science - Human Impacts - Learning Points. Offshore oil spills float on the surface of...

This video explores how energy and fuels are derived from natural resources. Special attention is given to how these energy resources affect the enviornment. In this activity students will investigate and describe energy resources. They...

Dr. Forrester teaches about renewable and nonrenewable natural resources.