Light Bulb
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What is a Light Bulb?
Picture Encyclopedia of Innovations
A light bulb is a glass tube or bulb that emits light when an electric current passes through it. Learn more about world changing innovations with our Picture Encyclopedia!
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Storyboard Description
Invention of the light bulb increased industry and comfort | A light bulb is a glass tube or bulb that emits light when an electric current passes through it. The light bulb's ability to illuminate once darkened factories and homes created a more productive and industrialized world.
Storyboard Text
- LIGHT BULB A light bulb is a glass tube or bulb that emits light when an electric current passes through it. The light bulb's ability to illuminate once darkened factories and homes created a more productive and industrialized world.
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