springs (either three or four) near the base. The design was extensively copied by other companies, usually in simplified form, and is still in use. Some derivatives use a heavy balance weight instead of the springs. The most common version replaces the arm linkages with two independent parallelogram linkages, with a pair of light tension springs on each half of the arm. The arm has been employed in other devices where it is necessary to hold an object stationary at a convenient point in space, notably the copy holder for typists and in some applications, the computer display screen. The lamps have been made from a variety of materials over the years, evolving from the early full steel prototypes into later models made from brass and aluminium. Although the lamp is still marketed as an iconic British design, production for all lamps, except the 1227 Giant model, has been moved to China. Anglepoise lamps at the BBC In 1948, the Board of Governors of the BBC asked the head of the Variety Department, Michael Standing, to devise a guiding set of moral standards and protocols for the production of all BBC radio and television programmes. Standing produced what became known within the BBC as the "Green Book", whose purpose was to eradicate smut, innuendo and vulgarity from all BBC programmes. After producing the book Standing took to implementing his guidance with eccentric zeal. In June 1949, he issued a memo to all staff in which he forbade BBC employees to illuminate any room with an Anglepoise lamp unless the main ceiling or wall light was also illuminated: Standing held a firm belief that a man working at a desk in a confined space with only the light from a low-wattage lamp would nurture furtive ideas and produce degenerate programme material. Director General Sir William Haley later rescinded the Anglepoise lamp edict as extreme and unnecessary. In culture "(I Wanna Be an) Anglepoise Lamp" 1978 single by the Soft Boys. The protagonist of Salman Rushdie's 1980 novel Midnight's Children, Saleem Sinai, makes repeated references to the Anglepoise lamp in the light of which he writes. Peter Gabriel's "Shock the Monkey" 1982 video features "dancing" Anglepoise lamps. UK post-rock band Fridge released the "Anglepoised" EP in 1997, compiled on Sevens and Twelves. The film company Pixar's first short film Luxo Jr. featured an animated Luxo balanced-arm lamp, who is subsequently featured in