Blueprints for real-world invisibility  

作　　者：Philip Ball 

机构地区：[1]East Dulwich, London SE22, UK.

出　　处：《Frontiers of physics》2018年第5期1-2,共2页物理学前沿（英文版）

摘　　要：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 mysteri- ous rays related to X-rays that would alter the refractive index of a transparent substance to match that of air.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 mysteri- ous rays related to X-rays that would alter the refractive index of a transparent substance to match that of air.

分 类 号：O435.1[机械工程—光学工程] O4[理学—光学]