A Man, a Robot, and a Mission Courtesy G4
The Navy's Gremlin Uses Sonic Waves to Find Underground Bombs -- Popular Science
The tools for safely disposing of explosive threats like improvised explosive devices (IEDs) have come a long way over the last decade, but one rule of explosives ordnance disposal (EOD) holds fast regardless of how much technology you throw at it: you can’t terminate a threat if you don’t know where it is. To that end, the Office of Naval Research is hoping to field a new sensor package that can see bombs buried under the ground or otherwise obscured from view by blasting them with sound waves and seeing what kinds of vibrations come back.
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My Comment: What a change from using the old fashion metal detector.
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