In the Know

What Can Lasers Do?

Lasers use mirrors to concentrate light energy into a thin, powerful beam. You might be surprised by how often people use lasers. In fact, you may have a laser at home. A DVD player uses a laser to … Read more

In the News

Travel Restrictions Help Reduce Air Pollution

A Dangerous Gas  Nitrogen dioxide (NO2) is a gas that is released into the air when fuel is burned. Emissions from cars, trucks, buses, power plants, and other industrial facilities release nitrogen dioxide. The environmental impact of nitrogen dioxide includes smog and acid rain. … Read more

2018 Roberts Court
In the News

Supreme Court Hears Cases Remotely

Have you been meeting with your class online? If so, you are not alone. Even the justices of the Supreme Court of the United States are hearing their cases remotely—over the phone. Usually, the justices … Read more