Invisibility Undone
From the 1933 classic The Invisible Man to the more recent installment in the Harry Potter series, invisibility have long been the stuff of film fantasy. In recent years scientists have shown that these Hollywood fantasies could one day become reality after all.
Some materials are effectively invisible because of the way they interact with light. But: with no light penetrating a perfect invisibility cloak, there would be no way for an invisible person to see outside.
A team of Chinese scientists has developed a way to unmask the “invisibility cloak”. According to new research, certain materials underneath an invisibility cloak would allow invisible objects be seen again.
