Scientists are fickle, aren't they? First they're saying we can't have invisibility cloaks, now they're saying we can. I vote "can," obviously. How will it work? The same way everything in the future will work: nanoparticles.
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Invisibility cloaks don't even exist (unless you're Liu Bolin), yet scientists keep trying to ruin the fun. C'mon, guys. Wouldn't it be more enjoyable to figure out the awesome uses for one instead of trying to get us all caught?
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No, the opposite of an invisibility cloak isn't a normal jacket, smartass. This universal mirror uses metamaterials to bounce light back at the same angle from which it came, so no matter where you stand, you can see yourself perfectly.
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Japan's been tooling around with versions of invisibility cloaks for years now, but they seem to have finally perfected it. Theoretically. By using "left-handed metamaterials" to make electromagnetic control devices, researchers can generate lenses that either reflect no light or have a perfect focal point—the end result of which lets you create a perfect invisibility cloak to skulk around Tokyo with. If you're really interested in the physics of the situation, you can head over to Nikkeibp, but we're pretty sure the illustration above will explain the matter just fine. [Nikkeibp]
US scientists have finally done it: they've created a cloak to hide an object in the visual light spectrum. The catch? This cloak is just 10 micrometres in diameter and only works in 2D space. But were still excited about the "locker room potential."
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