Vacuuming

You know, I admire Dr. Regal's work, but sometimes I feel like he doesn't understand the potential of his own research. He was showing me some designs for a vacuum vortex system and they were impressive, yes - you could draw objects of considerable mass towards you. But when I pointed out that you could also use it to launch things at high decent velocity - the maths is simple - he didn't even seem to have thought of it.

But what are the actual applications, other than picking up garbage? Just firing it at things?

Until we try it, how do we know what it's good for?