How do lightbulbs work?

Update: 2024-11-06

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Have you ever turned on a light and wondered, “How does that thing light up, anyway?” Us, too! We asked Tim Pula of the Smithsonian’s National Museum of American History to help us find the answer.

Got a question that has you glowing with joy? Send it to us at BrainsOn.org/contact, and we’ll help illuminate an answer for you!

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