Color theory primary colors work at all is that the imperfect pigments being used have sloped absorption curves, and thus change color with concentration. A pigment that is pure red at high concentrations can behave more like magenta at low concentrations. This allows it to make purples that would otherwise be impossible. Likewise, a blue that is ultramarine at high concentrations appears cyan at low concentrations, allowing it to be used to mix green. Chromium red pigments can appear orange, and then yellow, as the concentration is reduced. It is even possible to mix very low concentrations of the blue mentioned and
Norwegian Judo Federation the IJF in Jaipur, India. Norwegian Judo Federation The Norwegian Judo Federation ( - "NJF") is the national federation of judo in Norway. The chairman is Vibeke Thiblin (since 2009) and the deputy chairman is Harald Monsen. The Norwegian Judo Federation was founded in 1967. The organisation's headquarters are in Oslo. It is an affiliate of the International Judo Federation. In 2002 the Norwegian Judo Federation started training Afghan judokas under an exchange program with the Afghan Judo Federation established that year with the federation slogan "Judo for Peace". What began as a modest effort took on a big scale