A test found that the mileage of drivers in identical cars can vary by as much 75 percent. Here's what you can change to save $100 a month on gas.
Most modern electronics use tiny light-emitting diodes. Here's how scientists are working to create LEDs 10,000 times thinner than a human hair.
A light-emitting diode, or LED, uses a semiconductor to convert electricity into light. Find out more about the possibilities of LED lighting here!