In this 2011 illustration, provided by Cornell University, scientists demonstrate how they have have created, a new invisibility technique that doesn?t just cloak an object _ like in Harry Potter books and movies _ but masks an entire event. It is a time masker that works by briefly bending the speed of light around an event. Cornell scientists explain what they are talking about in this 2011 illustration that shows that if this technique is ever scaled up an art thief can walk into a museum and steal a painting without setting of laser beam alarms or even showing up on surveillance cameras or your eyes. (AP Photo/Heather Deal, Cornell University)