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Light Bulb in the Dark

Amos777eligius via Wikimedia Commons2017

Science History Institute

Science History Institute
Philadelphia, United States

In an incandescent bulb, electrons are squeezed through a long, thin coil of metal. This filament gets hot and bright. An inert gas inside the glass globe keeps the filament from burning. But incandescent bulbs waste a lot of heat while making light.

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  • Title: Light Bulb in the Dark
  • Creator: Amos777eligius via Wikimedia Commons
  • Date Created: 2017
  • Rights: Creative Commons CC0 1.0 Universal Public Domain
  • External Link: View on Wikimedia Commons
Science History Institute

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