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
Paco Candela Paco Candela Francisco 'Paco' Antonio Candela Pascual (born 19 January 1993) is a Spanish footballer who plays for Hércules CF. Mainly a central defender, he can also play as a defensive midfielder. Born in Alicante, Valencian Community, Candela graduated with Villarreal CF's youth setup, and made his senior debuts with the C-team in the 2011–12 campaign, in Tercera División. On 20 August 2013 he moved to Segunda División B's CD Leganés, featuring in 29 matches during his first season, which ended in promotion. On 6 August 2014 Candela signed a new two-year deal with the Madrid side. On 11 September