Rainbow which a glass prism could separate into the full spectrum of colours, rejecting the theory that the colours were produced by a modification of white light. He also showed that red light is refracted less than blue light, which led to the first scientific explanation of the major features of the rainbow. Newton's corpuscular theory of light was unable to explain supernumerary rainbows, and a satisfactory explanation was not found until Thomas Young realised that light behaves as a wave under certain conditions, and can interfere with itself. Young's work was refined in the 1820s by George Biddell Airy, who
Seven of Seven character's name, Nana, means 'seven' in Japanese. It relates the premise of the series, where Nana has split into seven different sides of the personality due to an accident with a crystal. In addition, Nana Suzuki's voice in the anime is done by another Nana, Nana Mizuki. The plots of the anime and the manga differ. After seeing a rainbow as a child and being mesmerized by its beauty, Nana's grandfather has been trying all his life to capture the beauty of a rainbow within a crystallized form. After years of failed attempts and crazy inventions, such as a VCR