New technology under development at UC Berkeley could soon give bomb-sniffing dogs some serious competition. A team of researchers led by Xiang Zhang, UC Berkeley professor of mechanical engineering, ...

Modern smartphones are packed with a wide range of sensors, and their magnetometer can successfully identify certain kinds of metals.

Every once in a while, you get your hands on a cool piece of hardware, and of course, it’s your first instinct to open it up and see how it works, right? Maybe see if it can be coaxed into doing just ...

This article was updated and checked for accuracy in April 2024. It was originally published in 2021. Believe it or not, metal detection is actually possible on Android phones. In fact, the first ...

Researchers have created a plasmon laser detector that can sniff out tiny traces of airborne molecules of explosives. The sensor detected both DNT and ammonium nitrate at concentrations below one part ...