For nearly 20 years, physicists and engineers have chased the idea of invisibility. Early efforts focused on hiding objects from light using so-called metamaterials with extreme and often unrealistic ...

The great unappreciated weakness of invisibility cloaks is that they only make things invisible to human eyes. Or x-ray imagers. Or ultraviolet sensors, infrared image analyzers, echo-location audio ...

There’s a well-known story in Plato’s Republic in which a humble shepherd named Gyges finds a magical gold ring that renders whoever wears it invisible. Gyges proceeds to use his newfound power to ...

Chinese physicists have created an illusory, ghosting invisibility cloak -- a cloak that changes the appearance of an object so that it looks like something else. In theory, you could cover a soldier ...

Invisibility cloaks sound like pure fiction, straight out of fantasy books and superhero films. (We all remember Harry Potter’s!) However, science has actually been poking at the idea for years, and ...

You might think invisibility cloaks exist only in the Wizarding World, but think again. A research team at the Korea Advanced Institute of Science and Technology (KAIST) has developed a technology ...

A researcher at the University of Texas at Austin has devised an invisibility cloak that could work over a broad range of frequencies, including visible light and microwaves. This is a significant ...