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Electricity is a major force of nature. In this section, you can learn how electricity works and what its potential uses are.

How Electricity Works

Electricity completely surrounds us whether you're charging your cell phone or watching the sky light up during a violent thunderstorm. For most of us, modern life would be impossible without it, and the natural world relies on it.

Voltage is how we measure the difference in electric potential energy. Learn about what voltage is from this article. See more »

Electrical insulators are materials that don't conduct electricity because the electrons in the atoms of which they're made don't move around. Learn what the different electrical insulators are in this article. See more »

How to Read a Power Meter

How to read a power meter. Visit to learn more about how to read a power meter. See more »

How Faraday Cages Work

Faraday cages shield their contents from static electric fields. Learn how Faraday cages work and how they are used for a variety of purposes. See more »

How are voltage surges and spikes different?

What happens when there's too much voltage? Learn about the difference between voltage surges and spikes from this article. See more »

How Electricity Works

Electricity surrounds us and can be used thousands of different ways. Learn about the basics of electricity, from generators and electrical circuits to voltage and currents. See more »

How Gasoline Works

Without gasoline, the world as we know it would grind to a screeching halt. The U.S. alone consumes well over a hundred billion gallons of gasoline per year. Learn all about this vital fuel. See more »