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
At the End of the Rainbow his human form. Now harmless, the Wizard wanders off and Matt and Sir Humphrey once again encounter Esmerelda, who invites the two to once again gaze into her crystal ball which reveals that Esmerelda is in fact the Princess Cecilia who was also under the spell of the Wicked Wizard. Matt uses his last coin to wish for the girl to be freed from the Wizards spell and she is instantly transformed back into the Princess (also played by DeCarl). Having used all seven of his magic coins unselfishly, a beautiful rainbow appears, which guides Matthew to find his way