The US army wants invisibility cloaks within 18 months
The US Army has put out a call for proposals from companies for wearable camouflage that has the ability to shift its colour according to the background, making the wearer invisible. It wants to test the best designs in just 18 months.
That doesn’t seem far away at all, but actually we’re closer to that kind of technology that most people realise. Metamaterials that can bend light around an object were first demonstrated nine years ago, and since then many researchers have showed off their own invisibility cloak designs.
