Color triangle Color triangle A colour triangle is an arrangement of colours within a triangle, based on the additive combination of three primary colors at its corners. An additive colour space defined by three primary colors has a chromaticity gamut that is a color triangle, when the amounts of the primaries are constrained to be nonnegative. Before the theory of additive color was proposed by Thomas Young and further developed by James Clerk Maxwell and Hermann von Helmholtz, triangles were also used to organize colors, for example around a system of red, yellow, and blue primary colors. After the development of the
Bass Strait Triangle low-level bombing practice — similar accidents occurred over land. In 1972, a De Havilland Tiger Moth flown by Brenda Hean and Max Price disappeared on a flight from Tasmania to Canberra as part of protests against the flooding of Lake Pedder for a hydroelectricity scheme. It was believed to have crashed at sea somewhere between the East Coast and Flinders Island. Sabotage by pro-development interests was alleged. The most famous incident, and the one that has been the inspiration for paranormal explanations, was the Valentich Disappearance in 1978. Bass Strait Triangle The Bass Strait Triangle is the waters that separate