Blueprints for real-world invisibility
Making objects invisible has never been easy.A seventeenth-century magic spell for growing ”beans of invisibility” instructed that they should be buried with the severed head of a man who committed suicide.For H.G.Wells”s ”invisible man” in his famous 1897 novel,the process was more scientific,involving the use of mysterious rays related to X-rays that would alter the refractive index of a transparent substance to match that of air.
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2018-12-12(万方平台首次上网日期,不代表论文的发表时间)
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