. "British physicist" . . "1943Z"^^ . "Sir John Brian Pendry"@en . . . . . "1943-07-04Z"^^ . "Pendry, John"@en . . . . . . . . . . . . "Sir John Brian Pendry, FRS FInstP (born 4 July 1943) is an English theoretical physicist known for his research into refractive indices and creation of the first practical \"Invisibility Cloak\". He is a professor of theoretical solid state physics at Imperial College London where he was head of the department of physics (1998\u20132001) and principal of the faculty of physical sciences (2001\u20132002)."@en .