| http://www.w3.org/ns/prov#value | - Their discovery is an extension of earlier metamaterial cloaking techniques, which have conjured up images of the Harry Potter character disappearing beneath his invisibility cloak.Padilla and Landy report developing a space-mapping technique that delivers greater precision and efficiency guiding light along pathways that previously were too complex to sustain - from 90-degree angles to the rugg
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