Scilie (Sigh-lee) G. Powers is a children's book character.  She explores the world of science and engineering through her favorite things.  When Scilie wears her magic safety glasses, she is transported to a new world where members of her doll collection come to life to teach the lessons.  Radiant Rainbow explains a basic principle of physics, the separation of light, as demonstrated by the formation of a rainbow.  Tutu Twirling Ballerina explains the gear, a basic building block of mechanical engineering, as demonstrated by a ballerina music box.