انکیandescent refers to the emission of light from a material when it is heated to a high temperature. This process occurs because the heat excites the atoms in the material, causing them to release energy in the form of visible light. Common examples of incandescent materials include metals and certain gases. A well-known application of incandescence is in traditional light bulbs, where a tungsten filament is heated until it glows, producing light. This technology has been largely replaced by more energy-efficient options, such as LED and CFL bulbs, but it remains an important concept in the study of physics and optics.