A British company has developed a camera that can detect weapons, drugs, and explosives hidden under people’s clothes from a distance of up to 25 meters. This new device may prove to be a major breakthrough for the security industry, ...

Scientists at the U.S. Department of Energy’s Argonne National Laboratory, in collaboration with colleagues in Turkey and Japan, have created a compact device that may serve as a basis for developing a portable, battery-operated source of terahertz radiation, known as ...