The different electromagnetic wavelenghts or frequencies that are situated on the electromagnetic spectrum. Wavelenghts are divided in several categories according to their wavelength and energy level, starting from radio wavelenghts with a long wavelength and a low energy level, to microwaves, infrared, visible light, ultraviolet, X-rays, and finally Gamma-rays with a short wavelength and a high energy level.
DATA SOURCED FROM ESCO (EUROPEAN COMMISSION) & O*NET (U.S. DEPARTMENT OF LABOR)