Cloaking technology used to create a region of space that allows microwaves in, but not out again.
If you haven't heard of metamaterials and what they can do, where have you been? Most of the media coverage so far has focused on invisibility cloaks but that's just the start of the fun physicists can have with this stuff. Only a few weeks ago we were discussing how to recreate the big bang inside a metamaterial. And earlier this year, a group of physicists suggested that it ought to be possible to create a black hole using metamaterials. That's an interesting idea but a demonstration would be more exciting.
Step forward Qiang Cheng and Tie Jun Cui at the State Key Laboratory of Millimeter Waves at Southeast University in Nanjing, China, who have used metamaterials to create the world's first artificial black hole in their lab. Yep, a real black hole.
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1 comments :
I copied the following comment by Qasem from the Technology Review:
It sounds that the authors intentionally have abused the notion of "black hole". What they mean is "a perfect black body", not a black hole. Though a black hole is a perfect black body, calling any perfect black body as a black hole should be evaluated as an example of hypocrisy.
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