The cloak is a diamond-shaped fibreglass and copper sheet which bends electromagnetic wave such as light around it - in effect, becoming invisible. People looking at a finished version of such a 'cloak' would only see the light from behind it. So far, in lab tests, the 'cloak' works with microwaves, rather than visible light, but it is a huge step forward for the technology.
The new version irons out tiny distortions that prevented 'true' invisibility, much in the s
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