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They must've known coal and oil, it was present naturally close to surface or straight up on it in places, still is. The whole digging and drilling business, t
by baq 3y ago
They must've known coal and oil, it was present naturally close to surface or straight up on it in places, still is.
The whole digging and drilling business, though - that's something else entirely.
- NegativeLatency 3y agoAnd pumping out the water, helpful to have a steam engine to lift all that mass out of your mine.