The Orca’s Thumb

Have you ever wanted to saunter into mass inconspicuously one Sunday morning to grab one of those delicious crackers — without starting a riot?

Well, if this sounds like you, then your lucky day is (almost) here.

Dr. Xiang Zhang and his group from the University of California are announcing this week, in a pair of articles to be published in Nature and Science, that they have created a material that can render a three dimensional object invisible.