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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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22 episodes
a few times a week
Avg 11 min
English

Episodes 22

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Today · 9 min
BrainStuff Classics: How Are Ethnicity and Race Different?
The concepts of ethnicity and race are both human inventions with no basis in science, but these concepts have huge impacts on us and our world. Learn the difference between ethnicity and race in this classic episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/genetic/race-vs-ethnicity.htm See omnystudio.com/listener for privacy information.
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Yesterday · 14 min
How Does Butter Get Its Texture, Flavor, and Color?
Turning cream into a stick of butter involves some complex chemistry, crystallization, and (traditionally) fermentation. Learn more -- plus the difference between sweet cream, cultured, and European butters -- in today's episode of BrainStuff. See omnystudio.com/listener for privacy information.
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Wednesday · 9 min
Why Do We Call Dibs and Shotgun, and Who Was the Real McCoy?
Some idioms have a fairly clear origin, but others have been lost to time and legend. Learn about the game that inspired calling dibs, the media that created calling shotgun, and why the 'real' McCoy was probably a number of people -- all in today's episode of BrainStuff, based on these articles: https://science.howstuffworks.com/innovation/famous-inventors/why-do-people-call-things-the-real-mccoy.htm; https://people.howstuffworks.com/what-are-dibs-and-why-do-call-them.htm; https://people.howstuffworks.com/riding-shotgun-phrase.htm See omnystudio.com/listener for privacy information.
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Monday · 10 min
Why Is Siberia's Batagaika Crater Known as the Doorway to Hell?
The Batagaika crater (or, technically, megaslump) is a massive pit caused by thawing permafrost -- and it's only getting bigger. Learn what paleontologists have found there (and why geoscientists are worried about it) in today's episode of BrainStuff, based on these articles: https://science.howstuffworks.com/environmental/earth/geology/batagaika-crater.htm; https://science.howstuffworks.com/environmental/earth/geology/permafrost.htm See omnystudio.com/listener for privacy information.
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August 22 · 8 min
BrainStuff Classics: How Would Authorities Handle a Murder in Space?
Investigating murders right here on planet Earth can be tricky -- how would it be handled in space? Who would even be in charge? Learn what current and future laws may apply in this classic episode of BrainStuff, based on this article: https://people.howstuffworks.com/murdered-in-space.htm See omnystudio.com/listener for privacy information.
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August 21 · 13 min
How Does Taste Work?
Your sense of taste isn't just a chemical catalog of what's in a food or drink -- it's a complex physiological and psychological process. Learn what we know (and don't know!) about taste in today's episode of BrainStuff, based on this article: https://health.howstuffworks.com/mental-health/human-nature/perception/taste.htm See omnystudio.com/listener for privacy information.
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August 19 · 15 min
How Did Weasels Get a Bad Rap?
Weasels have a bad reputation among bird farmers and have been cast as literal villains in books and cartoons, but they can actually help control vermin populations -- and ferrets can make great pets. Learn more about various types of weasels (including why they dance) in today's episode of BrainStuff, based on these articles: https://animals.howstuffworks.com/mammals/weasels.htm; https://animals.howstuffworks.com/pets/otherpets/ferrets.htm See omnystudio.com/listener for privacy information.
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August 17 · 15 min
How Did Napoleon I, the Emperor of the French, Rise and Fall?
In the midst of the French Revolution, Napoleon Bonaparte rode his hubris straight into an emperorship, but he was fated to fail. Learn how he came to power twice, why Waterloo was his downfall, and why he actually wasn't that short in today's episode of BrainStuff, based on these articles: https://history.howstuffworks.com/historical-figures/napoleon.htm; https://history.howstuffworks.com/european-history/battle-waterloo.htm; https://history.howstuffworks.com/history-vs-myth/napoleon-short.htm See omnystudio.com/listener for privacy information.
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August 15 · 7 min
BrainStuff Classics: How Did Alchemy Create Chemistry?
Alchemists may have never turned lead into gold, but they did create the field of chemistry. Learn how the study of alchemy worked in today's classic episode of BrainStuff, based on this article: https://science.howstuffworks.com/alchemy-to-chemistry.htm See omnystudio.com/listener for privacy information.
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August 14 · 11 min
How Did Sundown Towns Say the Quiet Part Out Loud?
Sundown towns are places in the United States where, after the Civil War and Reconstruction, white communities kept Black Americans and other groups out for decades, on purpose. Learn how they came to be -- and how some sundown towns are in recovery -- in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/american-history/sundown-towns.htm. Check out Dr. James Loewen's database of sundown towns here: https://justice.tougaloo.edu/sundown-towns/using-the-sundown-towns-database/ See omnystudio.com/listener for privacy information.
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August 12 · 12 min
Why Do We Yawn, and Why Is It Catching?
Science isn't entirely sure why humans and other animals yawn, let alone why yawning can be contagious -- but we've got some good hypotheses. Learn about them, from cooling the brain to spreading alertness, in today's episode of BrainStuff, based on these articles: https://science.howstuffworks.com/life/inside-the-mind/human-brain/question572.htm; https://science.howstuffworks.com/life/inside-the-mind/human-brain/contagious-yawn.htm See omnystudio.com/listener for privacy information.
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August 10 · 9 min
How Do Rip Currents Work?
Rip currents are dangerous flows of water that can drag you away from the shore and out into the deep. Learn how they form, what to watch for, and how to escape one by swimming sideways or riding it out in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/earth/oceanography/rip-current.htm See omnystudio.com/listener for privacy information.
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August 8 · 7 min
BrainStuff Classics: Can the Same Animal Evolve Twice?
Remote islands are excellent laboratories for observing evolution at work -- and in the case of a flightless bird called the Aldabra rail, we can observe how its evolution happened twice. Learn about iterative evolution in today's classic episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/evolution/iterative-evolution.htm See omnystudio.com/listener for privacy information.
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August 7 · 10 min
Where Did Tomatoes Come From?
The tomato originated in the Americas and spread during European colonization. But was it really thought to be poisonous (or cause lycanthropy) when it first came to Europe? Learn about the legends behind tomatoes -- and how we got the sturdy ones sold in stores -- in today's episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/where-did-the-tomato-come-from.htm See omnystudio.com/listener for privacy information.
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August 5 · 14 min
How Does Aspirin Know Where to Go in Your Body?
OK, that's a trick question. Aspirin goes everywhere in your body -- and wherever it goes, it works by preventing processes that amp up pain signals, encourage inflammation, cause fever, and more. Learn about the history and workings of aspirin (aka acetylsalicylic acid) in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/medicine/medication/aspirin.htm See omnystudio.com/listener for privacy information.
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August 3 · 14 min
What Is the Deepest Hole in the World?
Alongside the Space Race, the mid-1900s saw another contest of engineering -- a race downward, into the Earth. Learn why the USSR created the Kola Superdeep Borehole (the deepest artificial or natural hole we know of), what we learned from it, and how this research continues in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/civil/kola-superdeep-borehole.htm See omnystudio.com/listener for privacy information.
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August 1 · 8 min
BrainStuff Classics: Is Canned Food Really Worse Than Fresh or Frozen?
Canning foods preserves them, but the texture and nutritive value can suffer -- and what about the potential dangers of BPA and botulism? Learn what's true and what's myth when it comes to canned food in this classic episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/canned-food-bad.htm See omnystudio.com/listener for privacy information.
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July 31 · 13 min
How Do Octopuses Work?
These marine invertebrates can solve puzzles, use tools, and camouflage themselves by changing their very skin -- yet they live only three to five years, and die after mating. Learn more about octopuses in today's episode of BrainStuff, based on these articles: https://animals.howstuffworks.com/marine-life/octopus.htm/printable; https://animals.howstuffworks.com/marine-life/why-is-octopus-blood-blue.htm See omnystudio.com/listener for privacy information.
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July 29 · 11 min
How Do We Get Iron and Steel Out of Stone?
Iron processing is a benchmark of civilization for good reason -- this metal makes a lot of technology possible. Learn about the history and science of refining iron and steel in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/iron.htm See omnystudio.com/listener for privacy information.
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July 27 · 13 min
Did a Journalist's Probe into JFK's Assassination Lead to Her Death?
In the mid-1900s, Dorothy Kilgallen was a famous journalist and popular media personality -- but her investigation into the deaths of President Kennedy and his assassin, Lee Harvey Oswald, may have gotten her killed, too. Learn about the alledged organized crime coverup Kilgallen was looking into in today's episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/dorothy-kilgallen.htm See omnystudio.com/listener for privacy information.
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Showing 1–20 of 22 episodes