If entire mountain slopes start to slide, danger threatens. It is not always easy to predict and monitor these mass movements. In an international project, scientists at the Technische Universität ...

Radar, at its simplest, involves sending out pulses of radiation that reflect off an object. The reflected signal is detected, and the time of flight is measured. The time of flight is then translated ...

ORNL buildings researchers, from left Philip Boudreaux, Rui Zhang, Stephen Killough and intern Mercy Sammy, demonstrate how a microwave radar system can detect moisture in a wood panel. For homeowners ...

In the days before integrated circuits became ubiquitous, providing advanced functionality in a single package, designers became adept at extracting the maximum use from discrete components. They’d ...

Microwave absorbers are a kind of material that can effectively absorb incident microwave energy to make objects invisible to radar. Recently, as radar detection devices have improved, scientists are ...

Most aircraft carrying Doppler radar look like they've grown a tail, developed a dorsal fin, or sprouted a giant pancake on their backs. But when the unmanned Global Hawk carries a radar system this ...

A group of scientists from China may have created a stealth material that could make future fighter jets very difficult to detect by some of today’s most cutting-edge anti-stealth radar. The ...

If you’ve ever cast your eyes towards experimenting with microwave frequencies it’s likely that one of your first ports of call was a cheaply-available Doppler radar module. These devices usually ...