Heavy rainstorms weakened or reversed airflow at a South Dakota underground facility because rainfall acts like a syringe, pushing air through tunnels. This discovery could improve emergency safety protocols at underground mines worldwide.

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Science & Engineering

Heavy rainstorms weakened or reversed underground airflow at a South Dakota research facility because rainwater falling down shafts acts like a syringe, displacing air. This discovery could improve emergency safety protocols at mines worldwide.

Engineers solved an airflow mystery hidden nearly a mile underground

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