Drones dive into dark caves too risky for people

摘要

Mining companies in Australia are experimenting with fully autonomous drones to explore and map pitch-dark areas hundreds of feet underground that are too dangerous for humans. "It's very sci-fi," said Zachary McLeay, a production engineer for Australian gold producer Northern Star Resources Ltd. The detailed 3-D maps would help companies like Northern Star find deposits of gold and other minerals that might be missed otherwise.