How Modern Light Bulbs Work

The incandescent light bulb is 19th-century technology, and by now there's now a blinding array of electric lamps: halogen light bulbs, fluorescents, mercury and sodium vapor lamps, LEDs, lasers and so on. Created by Henry Reich Thanks to Nima Doroud for contributions. Music by Nathaniel Schroeder   / drschroeder   MinutePhysics is produced by Neptune Studios LLC https://neptunestudios.info Support MinutePhysics on Patreon:   / minutephysics   Link to Patreon Supporters: https://www.minutephysics.com/supporters Website | https://www.minutephysics.com Merch | https://dftba.com/MinutePhysics Twitter |   / minutephysics   Facebook |   / minutephysics   MinutePhysics provides an energetic and entertaining view of old and new problems in physics – all in a minute!