kidsNov 6, 20245:56pending

How do lightbulbs work?

Get every episode summarized

Each time Moment Of Um publishes, we email you a written briefing from the transcript — the topics, who appeared, and any specific claims, with the ad reads skipped.

Email me new episodes

Free for 3 shows. No card needed.

About this episode

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.

Get every episode summarized

Each time Moment Of Um publishes, we email you a written briefing from the transcript — the topics, who appeared, and any specific claims, with the ad reads skipped.

Email me new episodes

Free for 3 shows. No card needed.

Know when Tim Pula turns up

Follow Tim Pula and once a week we email you every new episode they appeared on — including guest spots the show notes never mention, because we read the transcript.

Follow Tim Pula

Free. Pick your own day and time.

Or alert me on every mention of this name →