See the visible light spectrum wavelengths and colors. Learn about colors beyond the visible spectrum and how our eyes see them.| Science Notes and Projects
Learn about infrared light or infrared radiation. Get the definition, wavelength and frequency range, and interesting facts.| Science Notes and Projects
Learn about the colors of the stars from hottest to coldest and see why there aren't any green or purple stars.| Science Notes and Projects
A simple equation relates wavelength to frequency. See examples converting between wavelength and frequency for light and sound.| Science Notes and Projects