One of the most interesting is [Glenn Powers]’ Open Ground Penetrating Radar. It’s exactly what ... If it works for submarines, it should work for a metal cart, right? It’s a great project ...

The Land Scan is a GPS Sinkhole detector. It uses a ground-penetrating radar to detect where sinkholes are starting to form.

Metal detectors, ground penetrating radar (GPR) and prodders (handheld devices) are some of the methods that are used to detect mines. Now, researchers have introduced a laser vibration sensing ...

Without disturbing the ground, Perry mapped out the graveyard recently using ground-penetrating radar and other technology ... "I remember some [repaired] with metal brackets to keep them up." Arthur ...