On 5/18/2021 8:50 AM, Gary wrote:
> Dsi1 wrote:
>
> > If it was a choice between working deep underground or ripping the
> > earth apart, I'd say rip away. No man should have to work deep in
> > the earth .
>
> My one grandfather and his father did that for their entire working
> life...about 50 years each.
>
> I got to see the inside of that mine once. Dark, damp and a tunnel going
> way underground that mountain.
>
> That would be a scary place to work all your life.
>
>
>

There are abandoned coal mines near me... many concerns back in the old
days. I'd be concerned about a collapse, but primarily as you get
deeper, hitting natural gas pockets. I used to work for a company
(Industrial Scientific) making hand-held gas detectors. I learned here
that miners years ago used to send children (so they didn't risk losing
a full grown man that could work) into mines with a parakeet... when the
parakeet quit squawking and fell, best get out of there! Thank God for
modern gas detectors, and child labor laws.