Electromagnetic radiation — these interactions include the Faraday effect and the Kerr effect. In refraction, a wave crossing from one medium to another of different density alters its speed and direction upon entering the new medium. The ratio of the refractive indices of the media determines the degree of refraction, and is summarized by Snell's law. Light of composite wavelengths (natural sunlight) disperses into a visible spectrum passing through a prism, because of the wavelength-dependent refractive index of the prism material (dispersion); that is, each component wave within the composite light is bent a different amount. EM radiation exhibits both wave properties
The Sound of a Flower The Sound of a Flower The Sound of a Flower () is 2015 South Korean period drama film based on the life of Jin Chae-seon, who became Joseon's first female "pansori" singer in 1867. Jin risks her life by cross-dressing as a man, at a time when women were forbidden to sing in public or perform on stage. The film focuses on the relationship between Jin and her pansori teacher, Shin Jae-hyo. The Korean title, "Dorihwaga", is a song written by Shin about his protégée after she became a court singer. The film was directed by Lee Jong-pil, who also