Keeping Up With The Jetsons.

Now we're getting there. Everyone knows that things float in the future. And we can't use magnets because nothing's made of metal. So some Japanese scientists are working on a way to make fish float. Well, technically they can make tadpoles, insects and fish eggs float too, but I imagine its pretty much any small object. The technology uses sound waves to keep an object suspended for a sustained period. I imagine it'll be a while before we're floating people with it, but that's not why it was designed anyway. The researchers are looking for a way to house compounds that normally corrode their containers. So imagine any video game you've played where the magical floating orb of mystery junx is floating in a temple. We can do that. All we have to do is figure out how to extract essence of water.

• Chinese mad scientists levitate fish with sound - Engadget