Embark on a captivating journey into the realm of black body radiation and visible light emission. Delve into the fascinating principles of Planck’s law, unraveling the spectral distribution of radiant energy. Explore the interplay of quantum mechanics and thermal radiation, shedding light on the mesmerizing glow of a light bulb. Join us as we illuminate the path to understanding the secrets of illumination and explore the practical applications of this intriguing phenomenon.