For the last two years, AgustaWestland has been secretly test-flying this tilt rotor technology demonstrator. It looks like a freakin' space fighter, doesn't it? SHUT UP AND TAKE MY MONEY!
A reactionless engine is an engine with no exhaust that somehow produces thrust. It seems like it should violate physics, but China says it's tested one.
Once upon a time, the grid was the only place to go for cheap, sustainable power. But if you live somewhere that the grid doesn't yet reach, that's no longer the case.