A robot that can dig quickly and deeply into mud or wet sand could one day help lay underwater cables, dig up and detonate underwater mines, or anchor machines to the seafloor, researchers say. The ...
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Geothermal is too expensive, but Dig Energy’s impossibly small drill rig might fix that
But for Dig Energy, the mud is a feature, not a bug, of its compact drilling rig. The startup, which has been operating in stealth for the last five years, developed the water-jet drilling rig in an ...
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