2021-12-19, 11:19
This New Tech Cuts Through Rock Without Grinding Into It
A startup called Petra uses super-hot gas to penetrate bedrock. The method could make it cheaper to move utilities underground—and make electric lines safer.
https://www.wired.com/story/new-tech-cut...rinding-it
A startup called Petra uses super-hot gas to penetrate bedrock. The method could make it cheaper to move utilities underground—and make electric lines safer.
https://www.wired.com/story/new-tech-cut...rinding-it