Two researchers at the University of St Andrews report that they have "worked out how to turn the normally 'sticky' quantum force of empty space from attraction to repulsion using a specially developed lens placed between two objects."
[T]he University of St Andrews team has created an 'incredible levitation effects' by engineering the force of nature which normally causes objects to stick together.
Professor Ulf Leonhardt and Dr Thomas Philbin, from the University of St Andrews in Scotland, have worked out a way of reversing this pheneomenon, known as the Casimir force, so that it repels instead of attracts.
Their discovery could ultimately lead to frictionless micro-machines with moving parts that levitate But they say that, in principle at least, the same effect could be used to levitate bigger objects too, even a person.
