Harry Potter’s ‘invisible cloak’ expected to move from science fiction to reality: Chinese scientists

... In fact, today's technological developments have opened the door to the possibility that Harry Potter's invisible cloak could go from magic to reality. Chu demonstrated the "invisibility" at the event, and he made his legs disappear directly with the help of a magical material called "lenticular grating" that allows light to be refracted regularly. The magical scene elicited gasps from the audience at the scene. ...