Search This Blog

Monday, December 1, 2014

Time cloak used to hide messages in laser light

Time cloak used to hide messages in laser light - physics-math - 28 November 2014 - New Scientist: "A "time cloak" that conceals events rather than objects can hide secret messages through a trick of light, making information invisible to all but the intended recipient.

Made with optical collusion, the cloak is a stitch in time <i>(Image: Science Photo Library/Getty)</i>

Like an invisibility cloak that makes something disappear in plain sight, a time cloak makes an event disappear in time. It works by manipulating light traveling along an optical fibre."

No comments:

Post a Comment