A 16-year-old teen was rescued from a 50-foot deep mine shaft in Northern California on Monday after the rope he was using to climb back out of the hole snapped, according to the California Department ...
PLACER COUNTY, Calif. -- A 16-year-old teen was rescued from a 50-foot deep mine shaft in Northern California on Monday after the rope he was using to climb back out of the hole snapped, according to ...
A recent article in Scientific Reports examined airflow temperature patterns during ultra-deep shaft construction using ...