Scientists at the University of California, Berkeley said Monday they were a step closer to developing materials that could render people and objects invisible to the human eye.
Researchers have demonstrated for the first time they were able to cloak three-dimensional objects using artificially engineered materials that redirect light around the objects. Previously, they only have been able to cloak very thin two-dimensional objects.
"We are excited because this is a building block for the future," said researcher Guy Bartal. However, he added that developing an invisibility cloak is "a very big challenge" and "will take a lot of energy and time."
Speaking at a news conference at Etcheverry Hall on campus, Bartal and other researchers said the development of an invisibility cloak, a popular subject in science fiction and Harry Potter novels, is probably still years away.
But the new work moves scientists a step closer to hiding people and objects from visible light, which could have broad applications, including military ones.
-- CBS5
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