Engineers solved an airflow mystery hidden nearly a mile underground

Engineers at a deep underground research facility noticed something strange during major rainstorms: airflow underground sometimes reversed direction. Using new sensors and mathematical modeling, they found that water rushing down a shaft was effectively pushing air through the tunnels like a giant piston. The breakthrough explains a long-standing mystery and could help underground operations better predict and manage ventilation during storms and emergencies.

Raccontata dasciencedaily.com