What might be making you a tad apprehensive, but might not, as it's too soon to tell

[Lamplighter]

I had not heard the term "long wall" before.

I watched a few of the YouTube videos on long wall coal mining.
Some are nothing but commercials for the mining equipment (e.g. Caterpillar, etc.)

This one explains what it is using animations:



Despite the politics of coal (Koch Brothers, global warming, etc.),
I am still amazed at the engineering.

Thanks for the introduction, Ortho...