Re: A laser based landmine detector

On a sunny day (Mon, 4 Nov 2024 21:41:02 +1100) it happened Bill Sloman
<bill.sloman@ieee.org> wrote in <vga8bv$suru$2@dont-email.me>:

On 4/11/2024 4:53 pm, Jan Panteltje wrote:

A laser based landmine detector
  https://www.sciencedaily.com/releases/2024/11/241101124009.htm
Research uses lasers to detect landmines, underground objects
Date:
     November 1, 2024
Source:
     University of Mississippi
Summary:
     Enough landmines are buried underground worldwide to circle Earth twice at the equator, but the identification and
     removal of these explosives is costly and time-consuming. New research could help solve the problem.
 
So, now as to looking for gold (down under? billy has a go?) :-)

>
The laser's don't penetrate the ground - they just follow the movement
of the surface of the ground which you have persuaded to vibrate by
other means.
>
It wouldn't be a great way of looking for gold to mine. A lot pf people
did go to Australian to look for gold to mine in the 1850's.
>
None of my ancestors did. They had more reliable ways of making their
livings.
>
The one who got closest to the mine fields was one of my
great-grandfathers, a Methodist minister,

That explains a lot

Dr. George Edwards Rowe who
set up a hospital for the miners at Kalgoorlie around 1892.
>
He'd married a rich woman, so he didn't have to dig for gold himself.
>

There are still people from Europe going down under looking for gold
I followed a TV series on German TV, so I would know how and where to look.
Ye never -no
 https://www.google.com/search?client=firefox-b-e&q=german+TV+series+about+looking+for+gold+in+Australia
Had other things to do when I was there...
Did not need the cash either.

I did build a sort of metal detector once.
No gold here...