Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...

Want to safely repair an electric appliance or simply test your home’s wiring? Get shopping tips as well as our top tool ...

Christian Garzone's furnace's heat exchanger had a crack in it and was leaking deadly carbon monoxide into the home. The unit ...

The growing availability of low-cost air quality sensors is helping people across the world track air pollution.

That gives the test utility in monitoring drinking water for two of the most toxic “forever chemicals,” perfluorooctanoic ...

The TDLR is urging Texans to install carbon monoxide detectors and to ensure proper ventilation of heating systems ahead of ...

This test uses saliva and connects to your phone to deliver quick insights into your stress hormones -- no needles needed.

One of the common causes of lost power and performance in diesel-powered vehicles is a malfunctioning nitrogen oxides (NOx) sensor. These sensors monitor NOx levels in the vehicle’s exhaust. If they ...

Samuel Lellouch does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Army Secretary Dan Driscoll is shown the newly arrived Lower Tier Air and Missile Defense Sensor, or LTAMDS, seen in the background during a rainstorm on Guam on July 27, 2025. (SFC Nicole Mejia/U.S.

The U.S. Space Force's secretive X-37B space plane is poised to launch to orbit once again. The X-37B is slated to lift off atop a SpaceX Falcon 9 rocket on Aug. 21 from NASA's Kennedy Space Center in ...