The Des Moines Police Department's bomb squad handles around 30 calls each year involving suspicious devices or packages.

When light reflects off a surface, not all of it reflects off at the same wavelength; some photons impart a portion of their ...

There are plenty of radios you can buy that pick up MW and SW bands if that’s what you’re into. Or, you can follow [mircemk]’s example, and whip one up yourself instead. The build employs an ESP32 as ...

Researchers at the University of Miami Rosenstiel School have revealed a new airborne imaging technique that accurately detects underwater weapons. The new airborne imaging system combines advanced ...