Submitted by EasterBunnyArt t3_yifno5 in explainlikeimfive
EasterBunnyArt OP t1_iuifcto wrote
Reply to comment by frakc in Eli5 How did humanity manage to ventilate mines? by EasterBunnyArt
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Hellboar414 t1_iuitzad wrote
The trick was to work on a mine with an "old" man who did it every time. Many he knew what to do.
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