Candela unit, the "candela". In 1967 the 13th CGPM removed the term "new candle" and gave an amended version of the candela definition, specifying the atmospheric pressure applied to the freezing platinum: The candela is the luminous intensity, in the perpendicular direction, of a surface of square metre of a black body at the temperature of freezing platinum under a pressure of newtons per square metre. In 1979, because of the difficulties in realizing a Planck radiator at high temperatures and the new possibilities offered by radiometry, the 16th CGPM adopted the modern definition of the candela. The arbitrary (1/683) term
Félix Candela works. Candela also benefited from the budget implemented by Ruiz Cortines in the area of education. Candela became a professor in Mexico, which is what he did for the remainder of his career. Felix moved to the United States and taught at University of Illinois at Chicago from 1971-1978. Candela was hired as a Professor of Architecture at the university's Chicago Circle campus (now University of Illinois at Chicago) on September 1, 1971, a position he held until 1978. Source: Fausto Giovannardi, ed.: "Felix Candela, Builder of Dreams" Candela's drawings, correspondence, personal and professional papers, and writings are held in