Antigravity?
Okay, not quite. In fact, it’s a while before we see any of this. But it’s fascinating. The Casimir force works because the vacuum is bubbling with exotic particles that flitter in and out of existence. (See the wiki definition: http://en.wikipedia.org/wiki/Casimir_force) If two plates are close enough together, the force from the particles that push the plates from the outside pushes against the force from the inside. The force then pushes the plates together. This is because there is almost no space between the plates to push back. Now, if something called a perfect lens is used, which can bend the pressure from the inside outwards, then it can use the exotic energy to keep the plates apart. In theory, this can work over larger and larger distances.
