Alchemy, which attempted to turn cheap metals such as lead and copper into gold, has not yet succeeded. However, with the development of alloys in which two or three auxiliary elements are mixed with ...
Since their relatively recent appearance on the commercial scene, rare-earth magnets have made quite a splash in the public imagination. The amount of magnetic energy packed into these tiny, shiny ...
Fig. 1. (a) Planar LC structure of a general PBOE. (b) Chromatic aberration in a broadband PBL. (c) LC structure for a multi-twist PBOE. (d) Experimental result of a broadband PBL. Augmented reality ...
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