Radar is a useful tool with familiar uses such as detecting aircraft and observing weather. It also has some less known applications, such as a technology known as ground-penetrating radar (GPR).

One of the most interesting is [Glenn Powers]’ Open Ground Penetrating Radar. It’s exactly what the title says: an open-source radar system that can see into the Earth for less than $500.

Ground penetrating radar detects electrical discontinuities in the shallow subsurface (<50m) by generating pulses of high-frequency electromagnetic energy and detecting the reflections from the ...

The R1 Radar system can use a smartphone or certain Garmin GPS units to show a full display of radar ... [+] operations. Popular GPS maker Garmin has introduced a new device for motorcycle and ...

Ground-penetrating radar reveals new secrets under Milan's Sforza Castle. Credit: Politecnico di Milano Ground-penetrating radar reveals new secrets under Milan's Sforza Castle. Credit ...