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Petra's remarkable thermal bore cuts through undrillable rock


Science & Medicine News Jan 12, 2022 by New Atlas


San Francisco startup Petra says its new contactless thermal drilling robot can make steady progress through the hardest rock on Earth - stuff that would normally destroy drilling equipment - so quickly and cheaply that it could make a lot of underground infrastructure projects economically...



tags: #science #tunnelling #rock #underground #infrastructure #electrical #thermal #boring #spaulation #bore #drill #plumbing

Petra's remarkable thermal bore cuts through undrillable rock

San Francisco startup Petra says its new contactless thermal drilling robot can make steady progress through the hardest rock on Earth - stuff that would normally destroy drilling equipment - so quickly and cheaply that it could make a lot of underground infrastructure projects economically...








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