Sort of inspired by the Boomba (see link).
A probe that is stuck in the ground and generates a high amplitude sound wave, scanning through a range of frequencies. the idea is to get the landmines to resonate violently, enough to give away their location.
I think that some minesweepers may already use ultrasound to find mines in a way similar to sonar.
I don't know how practical this would be, or its effects on the creepy crawlies that live in the soil. Then again, if I knew it all it wouldnt be half baked.-- Helixthecat, Dec 02 2006 Boomba BoombaInspirational [Helixthecat, Dec 02 2006] I thought this was an audio version of the video game.-- JesusHChrist, Dec 02 2006 //resonate wildly, enough to give away their location//
Any resonance would sooner lead the land mine to explosion than let you "hear" it vibrating (on a sonar, or with your bare ears). That's not neccessairly a bad thing, mind you. (Well, it is kind of bad for the creepy crawlies you mentioned, come to think of it.)-- Veho, Dec 02 2006 Creepy-crawlies reproduce faster than people, usually. And they get blown up anyway if some poor schmo walks over a land mine playing soccer, herding his cattle, or attempting to avoid slaughter at the hand of racist dictators.-- shapu, Dec 02 2006 After starting this up, you would want to clear the area in case there were any sandworms about.-- bungston, Dec 02 2006 I didnt want to say that the resonation would cause the mines to explode because I was unsure it would, but if it does thats even better!
Good point about the creepy crawlies. I guess worrying about the environment isn't a priority when your country is loaded with explosoves.-- Helixthecat, Dec 02 2006 random, halfbakery