Moment of Um

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.

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.

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.

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!

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.

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!

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!

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!

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!

Some planets have lots of moons. Others have none. Earth has just one moon, but it’s a really great one. It can glow bright and white and sometimes it’s shaped like a big round ball. Other times it’s skinny like the white tip of a fingernail. Makes you wonder, why does the moon look the way it does? We asked Preston Dyches from NASA’s Jet Propulsion Laboratory to help us find the answer. Got a question orbiting around your brain? Send it to us at BrainsOn.org/contact, and we’ll illuminate an answer.

You fart. I fart. Your dog farts. We all fart! Or do we…? Birds don’t fart, and they’re the closest living descendants of the dinosaurs. So, did dinosaurs fart? We asked paleontologist Kallie Moore to help us find the answer. Got a question rumbling around in your brain? Send it to us at BrainsOn.org/contact, and we'll find you an answer TOOT-suite!

Dinosaurs went extinct around 65 million years ago after an asteroid crashed into Earth. So we know when dinosaurs disappeared from the planet, but when did they appear? What was the first dinosaur, and how long ago did it live? We asked paleontologist Kallie Moore to help us find the answer. Got a question that’s got you full of veloci-RAPTURE? Send it to us at BrainsOn.org/contact, and we’ll TRY(ceratops) to answer it!

Megalodon was the biggest shark species that ever lived. The biggest ones were almost 60 feet long, which is longer than a school bus! These gigantic sharks went extinct millions of years ago, but why? We asked paleontologist Kallie Moore to help us find the answer. Got a question that you megalo-don’t know how to answer? Send it to us at BrainsOn.org/contact, and we’ll hunt down an expert to explain!

Dinosaurs were reptiles, which means they laid eggs! But what did these eggs look like? Were they big? Small? Speckly? Colorful? We asked paleontologist Kallie Moore to help us find the answer. Got a question you just can’t egg-nore? Send it to us at BrainsOn.org/contact, and we’ll help unscramble the answer!

Way out in the deep blue sea, there is a remarkable creature called the immortal jellyfish. This buoyant little blob can deal with being hurt or stressed by going from its adult form back to a baby!! Then it grows up all over again. Holy moly. How does that work? We asked science writer Christina Couch to tell us all about it. Got a question that’s a ten out of TENtacles? Send it to us at BrainsOn.org/contact, ‘cause we are READY for that jelly!

All living things on Earth are related. To help keep track of how close those relationships are, scientists organize life on Earth into groups using a system called taxonomy. Sometimes, taxonomy can be surprising – like, did you know that humans are more closely related to mushrooms and other fungi than we are to plants? How does that work? We asked microbiologist Christine Salomon to help us find the answer. Got a question that’s in a class by itself? Send it to us at BrainsOn.org/contact, and we’ll find an answer that’ll really grow on you.

Our skin is pretty incredible. It protects us and helps us sense the world around us. Some people have colored patches or dots on their skin called birthmarks. We wanted to know what birthmarks actually are, so we asked dermatologist Liz Farhat to help us find the answer. Got a question that makes you say “holy MOLE-y!” Send it to us at BrainsOn.org/contact, and we’ll help spot the answer.

Dolphins are super cool sea creatures that can swim fast, jump high, and make all kinds of nifty noises. But did you know that they also have big complicated brains like humans do? How did they get those big brains, and what do they use them for? We asked science writer Vicky Stein to help us find the answer. Got a question that’s FIN-tastic? Send it to us at BrainsOn.org/contact, and we’ll set out with a great sense of porpoise to find the answer!

The sense of smell is so powerful. Without it, we couldn’t sniff out freshly-baked muffins, stinky garbage, or smoky campfires. Some animals use their noses, others use antennae or even their feet to smell. But what about lizards? They have nostrils, but do they use them to smell? We asked lizard researcher Laura Kojima to help us answer this question. Got a question that you need to make scents of? Send it to us at BrainsOn.org/contact, and we’ll help you sniff it out.

Beans are delicious. From edamame to lentils, there’s a bean for everyone! But they can also make us a little tooty. Why is that? We asked pediatrician Wendy Hunter to help us find the answer. Got a question that’s a real gas? Send it to us at BrainsOn.org/contact and we’ll rip a good one (answer, that is)!