Moment of Um

By: American Public Media
  • Summary

  • Moment of Um is your daily answer to those questions that pop up out of nowhere and make you go… ummmmmmm. Brought to you by your friends at Brains On at APM Studios.
    Copyright 2024 Minnesota Public Radio
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Episodes
  • Why do daddy long legs have super long legs?
    Nov 12 2024

    Whether you’re a fan or not, one thing is for sure - most of us have had an encounter with a daddy long legs. They’ve got super duper long legs, and a TON of nicknames, including cellar spider, carpenter spider, daddy long-legger, vibrating spider, gyrating spider, long daddy, and skull spider. But why are their legs so long? Guilherme Gainett helps us solve this mystery.


    Got a question crawling around your brain? Send it to us at BrainsOn.org/contact, and we’ll help figure it out!

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    3 mins
  • Could you make a real-life lightsaber?
    Dec 29 2022

    A long time ago, in a galaxy far far away… we wondered, could you ever build a real lightsaber like the ones in Star Wars? A lightsaber is a glowing sword that can cut through metal – and pretty much anything else you can think of. It’s the favorite tool of heroes like Luke Skywalker and Ahsoka Tano, as well as villains like Darth Vader. That’s just in the movies, but could we make them real? We asked mechanical engineering professor Sayan Biswas to help us find the answer.

    Got more questions than Luke when he was training with Yoda? Send them to us at BrainsOn.org/contact, and we’ll help use the force to find an answer!

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    7 mins
  • How do fireworks explode?
    Nov 11 2024

    Fireworks are loud and exciting! You light a fuse and the firework rockets up into the air, and then BLAM! It explodes into colorful, sparkling bouquets of light. How the heck does a firework do that? We asked chemist David Chavez to help us find the answer.


    Got a question exploding in your noggin? Send it to us at BrainsOn.org/contact, and we certainly won’t reFUSE it!

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    7 mins

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