Talk:Hans Raum/@comment-19541665-20130916022617/@comment-19541665-20130917012920

''"Drills can go through earth, right?" ''That's true, they can and do go through earth, but they don't use propulsion to do that. They use the drills' shape and spinning speed to chip off and dig though materials, while applying pressure to keep it digging. And for the dust, I see now, thank you for pointing that out.