Moment Of Um

Brains On Universe

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 Universe.

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20 episodes
Updated Oct 8, 2025

Episodes20

Newest first

Oct 8, 2025 · 8 min
We’re back! Brains On Universe has a new headquarters
We’re back! We’ve officially moved into our new headquarters! Come unpack with us and get a tour while we fill you in on some big news. Plus, new episodes of Brains On coming later this month and new Smash Boom and Forever Ago after that. If you want to support the show or drop us a line, head to brainson.org. The best way to keep us going is to join Smarty Pass or donate here: https://brainson.supercast.com. Thank you! See Smash Boom Best LIVE in Princeton, NJ! Join us at the McCarter Theatre for a live, in-person version of Smash Boom Best, an award winning podcast for kids and families! Each live show takes two cool things, smashes them together and lets the audience decide which is best. Host Molly Bloom moderates a debate between two performers who make their case using facts fueled by jokes, physical comedy, and the occasional song and dance. At the end, the audience votes for the winner and crowns the Smash Boom Best – all while learning how to defend their own opinions and make the strongest arguments for their case. While we are in town, we are throwing a Smash Boom Spectacular Party right after the live show and YOU are invited! This won't be just any party. You will get to meet host Molly Bloom and our debaters. They'll be playing games with you, singing songs, answering your questions, and posing for photos. Plus, you'll get to take home an awesome, one-of-a kind Smash Boom Best goodie bag. You can gain access to this SBSP (Smash Boom Spectacular Party) by purchasing a VIP ticket* when you make your purchase. See you there! DETAILS & TICKETS McCarter Theatre Center October 26, 2025 at 3:00pm ET 91 University Place Princeton, NJ 08540 Buy Tickets Here See omnystudio.com/listener for privacy information.
Jun 11, 2025 · 3 min
A big update about Moment of Um and the Brains On Universe
We're moving the Brains On Universe Headquarters, and that means we have to stop putting out new episodes until we get settled. We know: not cool. But, our new home is going to be bigger and better and the absolute BEST. We can't wait until it's ready for you to visit. In the meantime, we still have some live shows planned this fall. Brains On Live will be in Dallas, TX on September 13. And Smash Boom Best will bring the debate heat to Princeton, NJ on October 26. Head over to brainson.org/events to get tickets. We can't wait to high five you all in person! And, if you want to be the first to hear about our shiny, new home, sign up for our newsletter. There will be six more bathrooms, 10 more water slides and, we're finally going to fix the doorbell! Also, if you have any questions or want to reach out to us, you can still head to brainson.org/contact to get in touch. See omnystudio.com/listener for privacy information.
Jun 6, 2025 · 7 min
How do braces work?
They come in cool colors, catch popcorn kernels and sometimes even have spacers - it’s braces! Ever wondered how braces magically straighten teeth? We asked Dr. ArNelle Wright - a real life dentist! - to help us break down the science of these tiny metal wonders. Bracing for a tough question? Send it to us at BrainsOn.org/contact, and we’ll help uncover the tooth. See omnystudio.com/listener for privacy information.
Jun 5, 2025 · 5 min
How did the solar system and all the planets get their names?
The Milky Way! Neptune! Uranus! Halley’s Comet! There are so many cool features in our solar system – but how did they get their names? We asked space scientist and communicator Maggie Aderin-Pocock to help us find the answer. Got a question that’s out of this world? Send it to us at BrainsOn.org/contact, and we’ll make space for an answer. See omnystudio.com/listener for privacy information.
Jun 4, 2025 · 6 min
How do stoplights know when to change?
Waiting for a stoplight to turn green can be really annoying, especially when you’re running late. It would be awesome if you had a magic wand you could wave to get the light to change. But alas, such things don’t exist. But how do stoplights know when to switch colors? We asked Jerry Kotzenmacher with the Minnesota Department of Transportation to help us find the answer. Got a nagging question that just won’t yield? Send it to us at BrainsOn.org/contact, and we’ll put you in the express lane to answersville. See omnystudio.com/listener for privacy information.
Jun 3, 2025 · 6 min
Can you control your dreams?
Have you ever had a scary or weird dream and wished you could switch your brain-television to another channel? Great news! You can learn to use “lucid dreaming,” a technique that helps you realize when you’re in a dream. Once you know you’re dreaming, you can teach yourself to shape your own storyline. So how does that work? We asked Dr. Ketema Paul, Professor, Integrative Biology And Physiology at the University of California, Los Angeles to help us find the answer. Got a question that’s keeping you up at night? Send it to us at BrainsOn.org/contact, and we’ll help put it to bed. See omnystudio.com/listener for privacy information.
Jun 2, 2025 · 7 min
How did people figure out how to make yogurt?
There are all different kinds of yogurt: Greek, vanilla bean, blueberry, even sheep’s milk yogurt! But how did people first figure out how to make this yummy food? We asked journalist Allison Conroe to help us find the answer. Got a question that’s whey cool? Send it to us at BrainsOn.org/contact, and we’ll find a legen-dairy answer. See omnystudio.com/listener for privacy information.
May 30, 2025 · 4 min
Why did snakes lose their legs?
Happy Snake Week! Every episode this week explores a different question about our slithery friends. Here’s a mind blower for you: did you know the ancestors of snakes used to have legs? Somewhere along the zigzag path of evolution, they traded in their lizardy legs for a more streamlined look. But why did snakes go legless? We asked biologist and snake researcher Emily Taylor to help us find the answer. Got a question that’s snaking around your brain? Send it to us at BrainsOn.org/contact, and we’ll find a fangtastic answer! See omnystudio.com/listener for privacy information.
May 29, 2025 · 4 min
How do snakes make venom?
Happy Snake Week! Every episode this week explores a different question about our slithery friends. Did you know that, out of the roughly 3,000 total species of snakes, only about 10-15% are venomous? But how do those snakes make venom in their bodies? We asked snake scientist Emily Taylor to help us find the answer. Got a question that’s biting at you? Send it to us at BrainsOn.org/contact, and we’ll search for the answer-dote! See omnystudio.com/listener for privacy information.
May 28, 2025 · 5 min
Why are snakes shaped like a stick?
Happy Snake Week! Every episode this week explores a different question about our slithery friends. Snakes come in all sizes and colors, but they have one thing in common: no arms or legs! In fact, one might argue they kind of look like sticks. We asked snake expert Emily Taylor why our reptilian neighbors are twig-shaped. Got a question that’s slithering around your brain? Send it to us at BrainsOn.org/contact, and we’ll promise we won’t throw a hisssss-y fit! See omnystudio.com/listener for privacy information.
May 27, 2025 · 4 min
What do zoos feed big snakes, such as pythons?
Happy Snake Week! Every episode this week explores a different question about our slithery friends. Zoos have to have all kinds of foods available to feed the different species that they care for. Animals like elephants, zebras and buffalo eat plants. Predators like lions, foxes and bears have a much meatier diet. But what’s on the menu at the snake house? Snake cake? Snake steak? Snake grapes? We asked biologist Emily Taylor to help us find the answer. Got a question snaking throughyour brain? Send it to us at BrainsOn.org/contact, and we’ll help squeeze out an answer. See omnystudio.com/listener for privacy information.
May 26, 2025 · 5 min
What do snakes do when they hibernate?
Happy Snake Week! Every episode this week explores a different question about our slithery friends. Did you know snakes hibernate in the winter just like bears, chipmunks and geckos? But what do they do while they’re hibernating? Do they have dreams? Do they wake up for mid-hibernation snacks? We asked snake scientist Emily Taylor to help us find the answer! Got a question you just can’t ssssssleep on? Send it to us at BrainsOn.org/contact, and maybe we’ll bite! See omnystudio.com/listener for privacy information.
May 23, 2025 · 7 min
Why am I allergic to raw egg but not cooked egg?
Some people have allergic reactions to foods like peanuts, sesame, and raw eggs. But when people with egg allergies eat cooked eggs, there’s no reaction. What’s up with that? We asked pediatrician Liz Placzek to help us find the answer. Have you hatched a really great question? Send it to us at BrainsOn.org/contact, and we’ll help find EGG-xactly what you need. See omnystudio.com/listener for privacy information.
May 22, 2025 · 7 min
How do mood rings work?
Have you ever heard of a mood ring? It’s a little piece of jewelry that supposedly tells you what kind of a mood you’re in. But how the heck can it know? We asked scientist Edwin Thomas to help us find the answer. Got a question that’s getting you in the mood to learn? Send it to us at BrainsOn.org/contact, and we’ll help w-ring out an answer. See omnystudio.com/listener for privacy information.
May 21, 2025 · 6 min
Why do we have weird dreams when we’re sick?
When you’re sick, it’s important to get plenty of rest to help your body heal. But it can be hard to sleep when your brain keeps showing you bizarre fever dreams (Like being chased by a giant fireball! Or swimming in nacho cheese!) Why do we have strange dreams when we’re sick, anyway? We asked dream researcher Michael Schredl to help us find the answer. Got any burning questions? Send it to us at BrainsOn.org/contact, and we’ll search feverishly for the right answer! See omnystudio.com/listener for privacy information.
May 20, 2025 · 5 min
Are brains really pink?
Quick, picture a brain! Did you imagine a rosy-colored little meatball? Us too! But are brains actually pink when they’re inside our skulls? We asked brain expert Gwenaëlle Thomas to help us find the answer. Got a question that’s giving you a real headache? Send it to us at BrainsOn.org/contact, and we’ll wrap our brains around it! See omnystudio.com/listener for privacy information.
May 19, 2025 · 5 min
Where do poop and pee go on airplanes?
Dogs come in so many different sizes, from the tiniest teacup terrier to the giant Great Dane. How did we get such a delightful assortment of these furry best buddies? We asked Brains On producer and archaeologist Anna Goldfield to help us find the answer. Got a question that’s been hounding you? Send it to us at BrainsOn.org/contact, and we’ll make sure to bark up the right tree! See omnystudio.com/listener for privacy information.
May 16, 2025 · 7 min
Could you make a candle out of earwax?
Dogs come in so many different sizes, from the tiniest teacup terrier to the giant Great Dane. How did we get such a delightful assortment of these furry best buddies? We asked Brains On producer and archaeologist Anna Goldfield to help us find the answer. Got a question that’s been hounding you? Send it to us at BrainsOn.org/contact, and we’ll make sure to bark up the right tree! See omnystudio.com/listener for privacy information.
May 15, 2025 · 4 min
Does space affect an astronaut’s digestion?
We chew our food, swallow it, and our stomach goes to work on digesting! Our bodies absorb the nutrients they need and then we poop out the rest. Here on Earth, the whole process takes somewhere between one to three days. But what about in space? Do astronauts digest food as quickly as they do on Earth? We reached out to space scientist and science communicator Maggie Aderin-Pocock to get the answer! Got a question you’re chewing on? Send it to us at BrainsOn.org/contact, and we'll spit out the answer. See omnystudio.com/listener for privacy information.
May 14, 2025 · 7 min
Why are some dogs so small and some so large?
Dogs come in so many different sizes, from the tiniest teacup terrier to the giant Great Dane. How did we get such a delightful assortment of these furry best buddies? We asked Brains On producer and archaeologist Anna Goldfield to help us find the answer. Got a question that’s been hounding you? Send it to us at BrainsOn.org/contact, and we’ll make sure to bark up the right tree! See omnystudio.com/listener for privacy information.

Moment Of Um

We’re back! Brains On Universe has a new headquarters

A big update about Moment of Um and the Brains On Universe

How do braces work?

How did the solar system and all the planets get their names?

How do stoplights know when to change?

Can you control your dreams?

How did people figure out how to make yogurt?

Why did snakes lose their legs?

How do snakes make venom?

Why are snakes shaped like a stick?

What do zoos feed big snakes, such as pythons?

What do snakes do when they hibernate?

Why am I allergic to raw egg but not cooked egg?

How do mood rings work?

Why do we have weird dreams when we’re sick?

Are brains really pink?

Where do poop and pee go on airplanes?

Could you make a candle out of earwax?

Does space affect an astronaut’s digestion?

Why are some dogs so small and some so large?