What It Took to Drill Down to 33 Trapped Miners

When Igor Proestakis proposed a faster way to drill down to 33 miners trapped in Chile’s San José mine in 2010, he chose a tool that had never been used for a hole that deep or that steep, and part […] The post What It Took to Drill Down to 33 Trapped Miners appeared first on Techspective: A Unique Perspective on Technology .