A new material created by researchers can refocus sound around certain objects and effectively render them sonically invisible to sonar. No natural material can do this, so man-made “metamaterials” must be created in order to toy with the laws of physics to essentially bend sound back on itself. Mind blown yet?
Invisibility is a staple of science fiction, from H.G. Wells to Romulans. Now scientists see a way to make objects disappear
By JR Minkel
Posted 09.27.2006 at 2:00 am 1 Comment
Scroll to the bottom of the page for a video simulation of an invisibility-equipped Aston Martin. And for a timeline detailing the history of innovations in the science of invisitbility, click 'View Photos' at left.
WHAT: A way to make objects invisible. The trick is to use metamaterial, a complex hybrid structure of metal and insulator that makes light move around an object like air flowing over an airplane wing.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.