How do lightbulbs work?

Moment Of Um

Lemonada Media

Kids & Family, Education For Kids

4.4 • 1.5K Ratings

🗓️ 6 November 2024

⏱️ 5 minutes

🔗️ Recording | iTunes | RSS

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Summary

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! See omnystudio.com/listener for privacy information.

Transcript

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0:00.0	From the brains behind brains on, this is the moment of um.
0:09.0	Moment of Um comes to you from APM Studios. I'm Globy, the nightlight.
0:15.4	Um.
0:17.1	As your B-shaped nightlight, it's my job to keep your room nice and cozy while you're sleeping.
0:23.8	Creepy shadows?
0:25.5	As if.
0:27.6	Dark corners?
0:29.2	Not on my watch.
0:30.7	Just flip my switch and ta-da!
0:35.0	Your bedroom is transformed into a glowy paradise.
0:40.2	Shining, shimmerings blended.
0:44.6	Perfect for helping you feel all comfy and relaxed, right before you drift into Dreamland and catch some Z's.
0:53.4	Ah, so soothing, right? And it's all thanks to this tiny little light bulb
1:01.1	inside of me. Have you ever wondered how light bulbs work? Yeah, me neither. J.K., I think about it
1:09.3	literally all the time. Maybe I'm biased, but I think light bulbs
1:14.8	are one of the most amazing inventions on the planet. So what makes them glow? My buddy
1:21.5	Amelia had a question about this too.
1:26.1	The earliest light bulbs came out, like in the early 1800s, actually. My name is Tim Pula. I am
1:33.1	the interpretive exhibits inventor for Spark Lab at the Smithsonian. And basically, I create hands-on
1:40.9	interactives that allow kids to engage in the process and history of invention.
1:46.0	Early light bulbs were all powered by batteries because there were no central power generating systems,
1:53.0	like what we have nowadays with electrical wires and power that just goes to a house or a building.
	...

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