gas discharge

Gas discharge refers to the process where an electric current passes through a gas, causing it to emit light or other forms of energy. This occurs in low-pressure environments, such as in neon signs or fluorescent lamps. The electric current excites the gas atoms, prompting them to release energy in the form of visible light when they return to a lower energy state. This principle is widely used in various technologies, including lighting, displays, and even some types of lasers, showcasing the fascinating interactions between electricity and gases.