That's really interesting, and is the kind of thing I come to abovetopsecret to see. Is there any evidence this device was built and successfully
demonstrated?
You have to install the viewer software. Look around on the site for it.
On the more conventional boring machines with the grinding wheels in front, and that cast concrete walls as they go, I've heard somewhere they can
potentially tunnel 6 miles a day unless they hit solid rock. That seems incredible to me. I don't believe it.