This is a far cry from a true invisibility cloak, but what assistant professor Baile Zhang showed off at TED2013 in Long Beach recently is one big step closer to that ideal. Check out the video for a quick demo. It’s made from two pieces of optical crystals (calcite) cemented together. Lots of questions remain about this (such as how close the object needs to be to be ‘hidden’…but it’s pretty cool nonetheless.
Invisibility cloak from TED2013
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