this post was submitted on 31 Jan 2026
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[–] can@sh.itjust.works 21 points 2 days ago (3 children)
[–] Bbbbbbbbbbb@lemmy.world 17 points 2 days ago (3 children)

Doesnt LIDAR just bounce light off of objects?

[–] Macchi_the_Slime@piefed.blahaj.zone 10 points 2 days ago (1 children)

Yeah that's the surface topography one I think. You'd need specifically ground penetrating radar if you're looking for bodies I think. Assuming of course all they did was bury them and they didn't like mulch up whoever they wanted to disappear first.

[–] can@sh.itjust.works 8 points 2 days ago (1 children)

That's what I thought so too but when I did a quick search eelier I did see some underground results. I will have to do more digging.

[–] Tyrq@lemmy.dbzer0.com 13 points 2 days ago
[–] then_three_more@lemmy.world 4 points 2 days ago (1 children)

Maybe they meant a Magnetometer or ground penetrating radar.

[–] fizzle@quokk.au 2 points 2 days ago (2 children)

These aren't just a little device you pin on your shorts though. You might tow it in a trailer behind a 4 wheel motorbike over a grid pattern.

[–] then_three_more@lemmy.world 1 points 1 day ago (1 children)

Or for the ground penetrating radar pop it on a small private plane and do a series of flybys

[–] fizzle@quokk.au 1 points 1 day ago (1 children)

I don't know anything about this other than what I've seen on Time Team (and supposition), but I think that might be ok if you're trying to measure the size and density of a mineral deposit, but I don't think you'll be able to detect a grave.

I think I'm conflating GPR with... something else to do with magnets, but I still don't think you're going to detect a grave from a plane.

[–] then_three_more@lemmy.world 1 points 1 day ago

Isn't the gpr the one they use to detect bits of wall and stuff and cops use to detect recently dug ground (because it's not as compacted). Of course if they hid the bodies during construction it might not work so well as it would all be dug over.

[–] FellowEnt@sh.itjust.works 1 points 1 day ago

There are relatively small buggy/wheelbarrow ones that you walk the grid pattern with.

[–] whereIsTamara@lemmy.org 3 points 2 days ago

Maybe we can just get Haley Joel Osment

[–] altphoto@lemmy.today 1 points 1 day ago

AlternativeTruthDar