Invisibility Cloak Invented
Researchers at Purdue University have developed a real-live invisibility cloak that "uses time to make things disappear." But Joseph Lukens, an electrical engineering Ph.D. candidate who just co-published his findings in Nature, says his cloak is different from the kind typically seen in flicks like "Harry Potter." "In scientific research terms, that is a spatial cloak. What we've done involves time cloaking," he helpfully explains.