This reminds me of something I saw a while ago, a helical (well, not really, more a twisted plane) white thingy that spins while lasers paint it. I think that one may have been in use on US submarines.

I could ask my brother-in-law, but I'll bet that's one of those things he's not allowed to talk about (his favorite line about his military service: "The carrier I served on may or may not have had the ability to deliver nuclear warheads.").

this is the best news I've heard in weeks.

you'll have a jetcar as soon as someone invents the fusion engine.