Now You See It, Some Day You Won't: Scientists Get Closer To Invisibility Using lenses and meta-materials, science is finding new ways to bend or reroute light. Like Harry Potter's cloak or H.G ...

It’s not Harry Potter’s invisibility cloak just yet, but scientists say it has a lot of potential. The desire to become invisible dates back to the ancient Greeks, if not further.

The cloak itself is made of a 50 nm thick film of magnesium fluoride that has been covered with gold brick-like antennae. The gold bricks are 30 nm thick, but vary in their width and length.

It’s not Harry Potter’s invisibility cloak just yet, but scientists say it has a lot of potential. The desire to become invisible dates back to the ancient Greeks, if not further.

According to a new analysis, the better an object is hidden by an invisibility cloak at one color of light, the easier it is to see at other colors. It's often a case of swings and roundabouts.