I remember back in the 1970s, when Popular Science covered then-new waterjet cutting technology. One of the pictures showed how a waterjet cutter could cut out foam rubber insoles at so many "feet per minute" (their pun, and I'm sure it was intended).
And on the "keep hands away" part, no kidding! I'm reminded of something the docents say on the USS Hornet engine room tour (at the old Alameda Naval Base): the steam going to the turbines was under so much pressure that a leak posed an amputation hazard (and hot enough to instantly cauterize said amputation); if they had to locate such a leak, they used a broom: when the bristles (or the handle!) got cut off by something invisible, they'd found the leak.
Edited by hbquikcomjamesl - 10/11/13 at 3:31pm