It's a trick of the light
(NEWSER) - Harry Potter's invisibility cloak might be a real stretch, but scientists are now closer to making hidden portals like the one in an apparently solid wall that Harry uses to reach the train to Hogwarts, Nature reports. Objects made with so-called metamaterials—electrical devices that react oddly to light—can appear bigger than they are and appear to fill an entire doorway, say scientists in Shanghai. "It is a bit like magic—terrific fun," said a physicist. More»
