In this step-by-step tutorial, learn how to make a powerful alarm at home using a DC motor. Perfect for DIY enthusiasts, this ...

The Greek inventor Archimedes supposedly used mirrors to set fire to invading ships. To test the possibility, a middle-school student designed an experiment for his science fair. Using light bulbs and ...

KELLER, Texas — Keller High School was evacuated Thursday afternoon after an experiment in a science lab set off the school’s fire alarm system, Keller ISD says. There were no injuries and no physical ...