Ultraviolet quickly than violet light itself. He called them "oxidizing rays" to emphasize chemical reactivity and to distinguish them from "heat rays", discovered the previous year at the other end of the visible spectrum. The simpler term "chemical rays" was adopted shortly thereafter, and it remained popular throughout the 19th century, although there were those who held that these were an entirely different sort of radiation from light (notably John William Draper, who named them "tithonic rays"). The terms chemical rays and heat rays were eventually dropped in favor of ultraviolet and infrared radiation, respectively. In 1878 the sterilizing effect of
Invisible Light Invisible Light "Invisible Light" is a song by American band Scissor Sisters, serving as the third and final single from their third studio album "Night Work". The track, which features guest vocals by actor Sir Ian McKellen, was what lead singer Jake Shears felt should have been the first single released for "Night Work", even after going with "Fire with Fire". The video for "Invisible Light" features a woman having a series of nightmares. She sees herself being dragged into the woods by a group of men, sleeping in a boat on a river, and attending her own funeral. The