A team of researchers at KAIST have developed a new liquid metal ink that could be applied to robots and wearable devices to absorb and block electromagnetic signals, making a stealth cloak.

What do Harry Potter's invisibility cloak and stealth fighter jets that evade radar have in common? They both make objects ...

In the Harry Potter stories, an invisibility cloak can hide a person even while they walk, bend, or run. In the real world, scientists have long dreamed of creating something similar—materials that ...