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BrainStuff

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Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.
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Episodes

Why Does Poison Ivy Cause a Rash?

Poison ivy isn't poisonous -- it causes an allergic reaction that can take days to appear. Learn about poison ivy and how to avoid it in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/botany/poison-ivy.htm/printable See omnystudio.com/listener for privacy information.

Dec 08, 202410 min

What's the History of Frozen Dinners?

Frozen meals have become a near-daily part of many people's lives in less than a century. Learn how refrigeration, food science, and television came together to make frozen foods a thing in today's episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/menus/history-tv-dinner.htm See omnystudio.com/listener for privacy information.

Dec 07, 20248 min

How Do We Build Tunnels Underwater?

It's relatively common for cars and trains to pass through underwater tunnels, but these structures are marvels of modern engineering. Learn how they're blasted, bored, and built from prefab pieces in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/structural/build-underwater-tunnel.htm See omnystudio.com/listener for privacy information.

Dec 06, 202411 min

How Do Platypuses Work?

This creature's amazing amalgam of traits includes fur like a mammal, webbed feet like a bird, eggs like a reptile, electroreception like a shark, and venom that may teach us how to build better painkillers. Learn more about the platypus in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/platypus-poison.htm See omnystudio.com/listener for privacy information.

Nov 30, 20246 min

Why Do We All Have Snot?

Almost every type of living creature relies on mucus to help keep itself healthy. Learn what snot can teach us in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/systems/respiratory/mucus.htm See omnystudio.com/listener for privacy information.

Nov 29, 20246 min

How Do Pop-Up Turkey Timers Work?

You can buy all kinds of fancy meat thermometers, but many turkeys are packaged with a simple pop-up timer that tells you when the bird is done. Learn how they work (and why Americans eat turkey on Thanksgiving in the first place) in this episode of BrainStuff, based on this article: https://home.howstuffworks.com/pop-up-timer.htm See omnystudio.com/listener for privacy information.

Nov 28, 20246 min

BrainStuff Classics: Do Footballs Fly Farther in Denver?

Denver's Mile High Stadium sits a full mile above sea level -- is that distance really enough to make a difference in the air compared with other stadiums, and thus in how footballs fly there? Learn about football physics in this classic episode of BrainStuff, based on this article: https://entertainment.howstuffworks.com/physics-and-football-denvers-altitude-affect-field-goals.htm See omnystudio.com/listener for privacy information.

Nov 24, 20246 min

Is There a Dark Side of the Moon?

What we sometimes call the dark side of the moon isn't always dark, but it is somewhat mysterious. Learn why we only see one side of the moon from Earth (and why it's sometimes in shadow) in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/dark-side-of-moon.htm See omnystudio.com/listener for privacy information.

Nov 23, 20247 min

How Does Cream of Tartar Work in Baked Goods and Beyond?

Cream of tartar is a kitchen ingredient most commonly used in baking, but it can help with everything from candy making to whipping eggs to cleaning up afterwards. It's also a byproduct of the wine industry. Learn how it works in this episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/food-science/cream-of-tartar.htm See omnystudio.com/listener for privacy information.

Nov 22, 20248 min

Do You Know These Myths About the Flu?

When it comes to influenza, what you don't know can hurt you. Learn some of the most common misconceptions about the flu (and flu vaccines), plus the truth behind them, in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/cellular-microscopic/10-flu-misconceptions.htm See omnystudio.com/listener for privacy information.

Nov 21, 202415 min

How Does Jane Goodall Work?

Dr. Jane Goodall's 60-year career has changed our understanding of chimpanzees and humanity alike. Learn how she's still working to improve our world for all its creatures in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/innovation/big-thinkers/jane-goodall-global-face-for-global-peace.htm See omnystudio.com/listener for privacy information.

Nov 20, 20247 min

How Does the Diagnostic and Statistical Manual of Mental Disorders (DSM) Work?

The DSM is a manual that U.S. healthcare professionals use to identify and diagnose mental health issues -- and it’s a continual work in progress because our understanding of mental health is continually developing. Learn how the DSM works in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/mental-health/mental-disorders/dsm-diagnostic-and-statistical-manual-mental-disorders.htm See omnystudio.com/listener for privacy information....

Nov 11, 202411 min

Why Can a Convicted Felon Run for U.S. President?

State laws can prevent people convicted of crimes from voting, so why do federal laws let them run for president? Learn why it's actually a good thing, and when people can be barred from federal office, in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/criminal-conviction-bar-running-for-president.htm See omnystudio.com/listener for privacy information.

Nov 05, 20248 min

How Does Xenophobia Work?

The fear and hatred of people who seem 'foreign' or 'other' can sadly pop up anywhere. Learn about xenophobia and how to fight it in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/xenophobia.htm See omnystudio.com/listener for privacy information.

Nov 04, 202410 min

BrainStuff Classics: Why Should You Stop Raking Fall Leaves?

Something has to be done with all those fall leaves, but the best option for the environment (and your lawn) isn't raking, it's mulching. Learn why, and how to get started, in this classic episode of BrainStuff, based on this article: https://home.howstuffworks.com/stop-raking-leaves.htm See omnystudio.com/listener for privacy information.

Nov 03, 20244 min

How Did Tyrannosaurus rex Work?

The 'tryant king' of the dinosaurs has been inspiring science (and science fiction) since it was first discovered. Learn how Tyrannosaurus worked in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/dinosaurs/tyrannosaurus.htm See omnystudio.com/listener for privacy information.

Nov 02, 20248 min

La Pascualita: Bridal Mannequin or Embalmed Corpse?

From the window of a small bridal shop in Mexico, an eerily lifelike mannequin has inspired macabre legends. Learn about La Pascualita in today's episode of BrainStuff, based on this article: https://people.howstuffworks.com/la-pascualita.htm See omnystudio.com/listener for privacy information.

Nov 01, 20247 min

How Do Ouija Boards Work?

This board game brought communing with spirits to the mass market in the mid-1900s. Learn about Ouija's storied history -- plus how science says our subconscious is responsible for moving the planchette -- in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/science-vs-myth/unexplained-phenomena/ouija-boards.htm See omnystudio.com/listener for privacy information.

Oct 31, 202411 min

Does Gunslinger Tom Horn Haunt the American West?

Some real-life legends haunt us even if literal ghosts do not. Learn how the tales about hired gun Tom Horn caught up with him in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/history-vs-myth/tom-horn.htm See omnystudio.com/listener for privacy information.

Oct 30, 20248 min

BrainStuff Classics: Why Do We Make Our Monsters Cute?

Pop culture loves making horrific figures adorable, from Cthulhu plushies to 'cute' Freddy Krueger costumes. But why? Learn what researchers think about the spectrum of cute to monstrous in this classic episode of BrainStuff. See omnystudio.com/listener for privacy information.

Oct 26, 20246 min

How Do Yaks Work?

The yak is a beautiful bovine adapted especially for its cold, high-altitude environment. Learn about yaks and their amazing milk and fiber in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/yak.htm See omnystudio.com/listener for privacy information.

Oct 25, 20246 min

Can Absinthe Really Make You Hallucinate?

Absinthe once had a sinister reputation for causing hallucinations and even insanity, but it's only as hazardous as any other alcohol. Learn about the history and science behind absinthe in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/innovation/edible-innovations/absinthe.htm See omnystudio.com/listener for privacy information.

Oct 24, 202410 min

Is There Life in Antarctica's Volcanic Ice Caves?

In frigid Antarctica, hidden ice caves warmed by volcanic activity can reach warm springtime temperatures and feature lots of liquid water. Learn what researchers hope to find in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/biology-fields/intricate-ice-caves-in-antarctica-may-harbor-unique-life.htm See omnystudio.com/listener for privacy information.

Oct 23, 20249 min

How Was Vasco da Gama, Portugal's Columbus, Just as Controversial?

During the Age of Exploration, Vasco da Gama established a water route from Europe to spice-rich India -- and established Portugal as a fearsome colonial force. Learn more in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/vasco-da-gama.htm See omnystudio.com/listener for privacy information.

Oct 22, 202412 min

Is Genius Genetic?

Intelligence and talent may be something we're born with, but there's evidence that nurture is at least as important as nature in determining genius. Learn more in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/genetic/genius-genetic.htm See omnystudio.com/listener for privacy information.

Oct 16, 20246 min

BrainStuff Classics: Why Are Suburbs So Unwalkable?

Many modern cities feature grided streets made for walking, but suburbs' wide, winding roads require cars to get around. Learn why, plus how it might change, in this classic episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/civil/why-so-many-suburban-streets-twist-and-turn.htm See omnystudio.com/listener for privacy information.

Oct 15, 20246 min

BrainStuff Classics: How Many People Really Have Food Allergies?

There's a lot of confusion over food allergies, intolerances, and other disorders with similar symptoms. So how can you tell the difference, and how many of us should be concerned? Learn more in this classic episode of BrainStuff, based on this article: https://health.howstuffworks.com/diseases-conditions/allergies/food-allergy/information/why-there-is-so-much-confusion-about-who-has-food-allergies.htm See omnystudio.com/listener for privacy information....

Oct 14, 20246 min

Who Was Sparticus?

Sparticus was an enslaved man who led a revolt against the Roman Republic that changed the course of history. Learn about the life of this gladiator turned rebel leader in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/spartacus.htm See omnystudio.com/listener for privacy information.

Oct 13, 202410 min

Why Is the Panama Canal a Modern Wonder of the World?

The Panama Canal makes ships float uphill between oceans -- and creating it took solving an epidemic, moving millions of tons of earth, and inciting a revolution just to start out. Learn more about the Panama Canal in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/structural/panama-canal.htm See omnystudio.com/listener for privacy information.

Oct 12, 202412 min

How Can Microorganisms Make Food Delicious and Nutritious?

Some microbes make food spoil, but others help preserve it -- and even create our favorite flavors and effects, from cheese to chocolate to chardonay. Learn more about food fermentation in this episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/food-fermentation.htm See omnystudio.com/listener for privacy information.

Oct 11, 20249 min
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