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 ...

Researchers from University of Bristol and Diamond Light Source have uncovered how moths create a powerful stealth cloak preventing detection by biosonar. This work (Bio-Inspired Urban Adaptations: ...

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 ...

Magnetic invisibility sounds simple in theory. Place the right materials around an object and magnetic fields flow around it as if nothing were there. Reality has been far messier. For nearly two ...

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 ...

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 ...