Smoke detectors are everywhere, but still thousands of people die in fires annually. Fire gas detectors, which detect carbon monoxide and nitrogen oxide, identify fires at an early stage. Thanks to a ...

Not all smoke detectors are equal, and the type of smoke detector installed in many homes might not sound off in all fires. Smoke alarm manufacturers sell alarms with two types of technology.

You may not always be able to smell it, taste it or discern its presence, but toxic and flammable gases can present significant industrial hazards. New technologies are improving gas-detection ...

The rain fell as I stood at the top of the rappel tower; looking down at the ground, I prepared for a 50-foot descent. I had been an Army ROTC cadet for just two weeks, and this was the first time I ...