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  
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