Blue Pullman (other)
Blue Pullman was an express passenger service provided by British Rail. Blue Pullman may also refer to: * British Rail Classes 251 and 261, a type of diesel-electric multiple unit built by Metro-Cammell in 1960, used to operate the Blue Pullman trains ** ''Blue Pullman'' (film), a 1960 film about the train of the same name * a railtour operated by Cotswold Rail in 2008 * a railtour operated by FM Rail in 2006 * a railtour operated by Locomotive Services Limited Locomotive Services Limited is a train operating company in Great Britain. The company operates rail tours using heritage steam, diesel and electric locomotives with support from associated companies and trusts. History In August 2017, Locomo ...

Blue Pullman
Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The eye perceives blue when observing light with a dominant wavelength between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective. Blue has been an important colour in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultramarine, the most expensive of all pigments. In the eigh ...
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