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comment by b_b
b_b  ·  4420 days ago  ·  link  ·    ·  parent  ·  post: Double jacking (hand-drilling) in a Michigan copper mine - 1875

Candles are good, because when they burn out unexpectedly, you know you're about to suffocate. Good to be able to ask for forgiveness one last time.





mk  ·  4419 days ago  ·  link  ·  

I visited some of these mines. On one tour, the guide cut the lights and lit a candle to mimic the conditions. The darkness felt like it was trying to snuff the candle out.