There's a flexible material that can make you invisible to radar

When most people think of invisibility cloaks, they think of something from Harry Potter, donning a fabric that makes you blend right into the background. That might help you sneak into the restricted section of your school library, but that won’t fool radars A team of engineers at Iowa State University published a research paper detailing the use of flexible metamaterials — man-made materials that have properties not found in nature — to cloak objects from microwave radar detection. See a...