Brains On!-logo

Brains On!

Minnesota Public Radio

Brains On is a science podcast for curious kids and adults from MPR News and KPCC. Co-hosted each week by kid scientists and reporters from public radio, we ask questions ranging from the science behind sneezing to how to translate the purr of cats, and go wherever the answers take us.

Brains On is a science podcast for curious kids and adults from MPR News and KPCC. Co-hosted each week by kid scientists and reporters from public radio, we ask questions ranging from the science behind sneezing to how to translate the purr of cats, and go wherever the answers take us.
More Information

Location:

Minneapolis, MN

Description:

Brains On is a science podcast for curious kids and adults from MPR News and KPCC. Co-hosted each week by kid scientists and reporters from public radio, we ask questions ranging from the science behind sneezing to how to translate the purr of cats, and go wherever the answers take us.

Language:

English


Episodes

How do elevators work?

8/13/2019
More
Elevators are like magic. You walk in, the door shuts and when it opens again, you are suddenly someplace new! Ta da! But it’s not magic that does this trick, it’s science and engineering. In this episode we explain how elevators work and we talk about how they’ve changed over time. For instance, did you know the first elevators had no walls? We also speak with historian Lee Gray about two elevator innovators who both happen to be named Otis. Speaking of Otis, Vijay Jayachandran with the...

Duration:00:37:45

Hey, where did you get those genes?!?

8/6/2019
More
Today we’re talking genes - the recipe for you! We’ll go microscopic and check out how traits like hair color are passed down through your family. We’ll also hear the story of genetics pioneer Nettie Stevens and find out how current-day geneticist Janina Jeff unlocks the information packed in genes. And if you have ever wondered how two black Labrador retrievers can be the parents of a yellow Lab, you’re not alone. We have the answer to that too. All this and an especially rambunctious...

Duration:00:34:19

Plastic: Why it's everywhere

7/30/2019
More
Human-made plastics are super useful -- they're lightweight, can be molded into anything, and they don’t break down. And because plastic is so versatile, we humans have found lots of uses for it. But the fact that it last forever means we find ourselves with a plastic problem. In this episode, we'll learn about the invention of plastic, how it's made and recycled and what you can do to help handle plastic waste. Plus: A very special appearance by Gungador, a tricky mystery sound and a...

Duration:00:43:15

Ants: Who's in charge here?

7/23/2019
More
We have a lot to learn from ants. This episode digs into the hierarchy of ant colonies (spoiler alert: there is none) and why they walk in a straight line (spoiler alert: they don’t). We’ll also find out about epic ant battles and how the study of ants is teaching us about how cancer spreads, how the internet can be improved, and could even give us new ways to explore Mars. Plus: Our Moment of Um answers the question: Why do the mountains look blue from far away? This episode is sponsored...

Duration:00:30:30

Tree, Myself and I: All about our leafy green friends

7/16/2019
More
Trees are the strong, silent type but that doesn’t mean they can’t communicate. In this episode we’ll explore how trees send each other messages above ground and below. Plus we’ll learn how a seed goes from a tiny sapling to a towering plant. We find out some fruit facts and hear an all new Mystery Sound. Oh, and our Moment of Um answers the question: why does the moon sometimes change color? This episode is sponsored by Discount Tire (discounttire.com) and Raddish, a cooking club for kids...

Duration:00:36:11

Do insects see the world in slow motion? Looking through animal eyes

7/9/2019
More
Do insects see the world in slow motion? Do animals see the same rainbow we do? How do eagles see so far away? Our listeners have a lot of questions about the way animals see the world, and this episode tackles lots of them. We'll visit a lab where scientists are observing predatory insects to find out how their brains work, we'll drop in on the Eyes Open Wider support group for animals, and give you a catchy melody that will help you remember the electromagnetic spectrum -- that's all the...

Duration:00:31:18

Going underground at Wind Cave National Park

7/2/2019
More
What wonders are hiding underground? Producer Marc Sanchez finds out what it’s like to explore one of the biggest networks of caves in the world — and scientists are still discovering unmapped branches. Marc will show us the wonders hidden underground at this national park in South Dakota and how tricky it can be to brave uncharted territory with only a headlamp to light the way. This episode is sponsored by Aunt Fannie’s (auntfannies.com/summer and coupon code BRAINS), Raddish...

Duration:00:24:47

Nervous: All about feelings, pt. 4

6/25/2019
More
(This is the final installment in our series about feelings. Check out the first three if you haven't yet.) You know that feeling when you have butterflies in your stomach? Or maybe you get sweaty and hot? Or maybe you get fidgety and your heart beats really fast? Yeah, we know those feelings too. Today we're finding out why being anxious can make our bodies feel that way. We'll find out why fear has been really useful to our survival as a species and what you can do if that fear and...

Duration:00:36:33

Angry: All about feelings, pt. 3

6/18/2019
More
This is the third of our four-part series on feelings. Today we're learning why we all get angry and what to do with that emotion. We'll get in touch with our inner Super You Person and learn what physical reactions anger can trigger in our bodies. We'll also hear how our listeners describe their anger and talk to NPR reporter Michaeleen Doucleff about the different flavors of anger that people describe around the world. Plus: Mallika Chopra shares another meditation to try when you're...

Duration:00:41:24

Sad: All about feelings, pt. 2

6/11/2019
More
This is the second episode in our four-part series on feelings! In this episode, we're covering the small and big parts of sadness. Because this episode touches on some heavy pieces of sadness -- we recommend kids listening along with an adult, so you can talk over any questions that come up. But this episode has plenty of fun stuff, too! We'll learn about how social animals -- from goldfish and penguins, to humans -- all seem to get sad sometimes. We'll talk about some ways to help handle...

Duration:00:40:33

Happy: All about feelings, pt. 1

6/4/2019
More
Where do feelings come from? And why do we have them? In this four-part series, we're digging deep into our emotions. In this first episode, we're getting happy! We'll get a play-by-play of the chemicals in our brain that trigger joyful feelings, and use the zoom ray to see what good vibes do for our bodies. We'll also hear about how each of us have different emotional thermostats and why thinking about our feelings can help us figure out what to do with them. At the end of this episode --...

Duration:00:39:32

Thinkin stinkin: Why we smell

4/30/2019
More
You may have noticed some strong smells coming from your feet, your friend's breath, or your brother's armpit. Where do these body odors come from? We'll meet the microscopic organisms responsible and visit the kingdom of Footsteros. We'll also find out why we might find these naturally occurring smells so disgusting. Plus: A brand new Moment of Um answers the question: Why do stink bugs stink? This episode is sponsored by Cloud Control Cat Litter by Arm & Hammer, Bona Premium Spray Mop...

Duration:00:31:20

Forever echo: Can a sound wave go on forever?

4/23/2019
More
Today we shout out our love for the ECHO! (echo echo) Discover how these curious callbacks happen and why we hear them in some places but not others. We'll also play you the longest echo in the world and take you to an echo-proof room. Plus, an actual echo stops by to share its new podcast and we hear the answer to this Moment Of Um question: why can wild animals drink dirty water when humans need clean water? Today’s episode is sponsored by Loacker (loackerlove.com/powermom2019),...

Duration:00:36:54

The hows and whys of hair

4/16/2019
More
The hair on our heads is on our minds. We have fun with follicles and learn about how they make hair. Our experts help us decipher what makes hair black or brown, blonde or red, and even why it turns gray. From eye lashes to ear and nose hair, this episode has it all. Why do humans have hair and not fur? Why is there hair on the top of our heads? How does hair grow? How does hair become curly or straight? Plus: A brand new Moment of Um answers the question: "Why does my dad get fuzz in his...

Duration:00:28:24

Why are smartphones so hard to put down?

4/9/2019
More
Screens are everywhere these days! We’re taking a look at why smartphones are so addictive, and how our devices affect us. Our co-hosts took on a bold challenge for this episode: they went a week without phones or tablets. We’ll hear how their experiment went, then Sanden will fill us in on the brain chemical that trains us to love our screens. We'll also learn why the predictability of messages and alerts on smartphones makes them extra hard to put down. Plus, we’ll get a few tips from...

Duration:00:36:03

Mystery Sound Extravaganza 2019

4/2/2019
More
This episode is an ear-tickler! Guess your way through eleven mystery sounds — one from a scientist, and ten from listeners like you! Plus, another mystery: what’s making Marc and Sanden dance to the sounds of a door jamb and a printer? Stick around for all these reveals, and the answer to a new Moment of Um: Why is air invisible? This episode of Brains On is sponsored by the Kevin Henkes book, "Sweeping up the Heart,” Panama City Beach (visitpanamacitybeach.com), and Philo...

Duration:00:34:40

Carnivores: Plants and animals that bite back

3/26/2019
More
Most plants get the energy and nutrients they need from water, sunlight, air and soil. But carnivorous plants get key nutrients from a different source: bugs. We’ll find out how they do it and talk about the mystery of how venus fly traps snap shut. Plus: Two gardeners – one very experienced and one just starting out – offer their tips for growing venus fly traps. So that’s plants, but what about animals? Carnivores are animals that only eat other animals – so how do they get the vitamins,...

Duration:00:25:04

Flush! Where does our poo and pee go?

3/20/2019
More
Every time you flush, your poo and pee start an epic journey. From the toilet, to the sewers, to a treatment plant, our waste travels quite a distance only to end up cleaner by the end. We'll hear from a "PooTube" star about her experience with "the flush." We'll also hear about ancient sewers, a "fatberg" under London and a toilet that cleans waste on site. Plus, our Moment of Um answers why you can feel your heart beating in your neck of all places. Sponsors for this episode include: The...

Duration:00:37:17

Black Holes, Wormholes and Donut Holes

3/12/2019
More
Black holes happen when you have a super huge, mega-giant amount of stuff --- crammed into a super-tiny, infinitely-small amount of space. AND THEY ARE SUPER COOL! In this episode, we learn all about what black holes are and how we found out they were real. We talk to a black hole hunter who has discovered supermassive black holes. And we find out what a wormhole is and why it might really, be really, really hard to ever find one -- or travel through it. Plus: The Moment of Um answers the...

Duration:00:40:32

Walking on walls: How ants and spiders do it

3/5/2019
More
Ants and spiders are able to defy gravity -- but how do they do it? We'll learn about how awesome their feet are and how one predator takes advantage of these powers. Plus: A very challenging mystery sound and a Moment of Um that answers the question, "How do bananas ripen other fruit?" Today’s episode is sponsored by: KiwiCo (kiwico.com/brainson) Bona (bona.com/brainson) Panama City Beach (VisitPanamaCityBeach.com). You can support Brains On at brainson.org/donate.

Duration:00:31:06