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Alternative Energies

There are many renewable energy sources available to humans. Renewable means that there is no known limit to the supply. The challenge is to develop the technology into an efficient, cost-effective solution for producing enough energy to meet human needs. Here are a few examples: . . . Read More

Energy

What is energy? Energy is the ability to do work, or cause change. Energy is literally what makes the world and everything in it go . Energy is the magic stuff stored in the battery that makes the flashlight work. The gasoline in a car’s gas tank contains energy. The car’s engine merely . . . Read More

Math

“Will I really use this in life?” This is a question asked by many students when confronted with a subject they find difficult or uninteresting. It is a fair question – albeit an easily answered one – especially when dealing with the subject of mathematics. Nearly . . . Read More

Bridges

What is the purpose of a bridge? To provide a safe, stable road surface over a waterway or ravine. A bridge supports the load of the vehicles that move across it. Because loads are moving and constantly changing, they’re known as live loads. A bridge must also support another load — its . . . Read More

Airplane Flight

How does an airplane fly? What magic force keeps an airplane up in the air, despite the force of gravity pulling it toward Earth? The “magic” is in the way air interacts with the moving airplane wings. To better understand flight, it helps to know a little about the air around us. Read More
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