7. Night-Vision Contact Lenses
You can be the best soldier in the world, but if you can't see anything, then you're going to have trouble. Unfortunately, many combat zones are not exactly well lit, so military engineers have been working on a way to give soldiers cat-like abilities to see in the dark without bulky equipment that's likely to get in the way. Researchers at the University of Michigan created a graphene infrared light sensor delicate enough to contain within a contact lens. The scientists sandwiched graphene, a material made of carbon atoms just one atom thick, with an insulating layer and then passed a current through it. The effect of this is that, when infrared light hits it, the current amplifies it to the point that it is visible to the human eye, granting night-vision abilities. Biohackers have also reportedly created an
eye-drop formula that can grant temporary night vision that works in much the same way, but without the electric current. The benefit of this is that it might not malfunction or even damage the eye like a lens, but a drawback is that it can't be "switched off, leaving the user vulnerable to dazzling."