BrainStuff
2,725 episodes — Page 5 of 55
Do Other Planets Have Tectonic Plates?
Some scientists think tectonic plates are a prerequisite for life as we know it. Learn what we know about plate tectonics elsewhere in our solar system in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/is-earth-only-planet-with-tectonic-plates.htmSee omnystudio.com/listener for privacy information.
Why (and How) Does Paper Crumple?
It turns out that thin, bendy sheets like paper crumple in predictable ways -- and we can learn a lot from the process. Learn more about the protective physics of crumpling in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/crumple-theory.htmSee omnystudio.com/listener for privacy information.
BrainStuff Classics: What Exactly Are Frankincense and Myrrh?
Frankincense and myrrh play a part not only in the story of Christmas, but in lots of other religious traditions as well -- and a few practical ones, too. Learn more about these aromatic substances in this classic episode of BrainStuff, based on this episode: https://science.howstuffworks.com/life/botany/question283.htmSee omnystudio.com/listener for privacy information.
How Does Fruitcake Work?
Whether you love it, hate it, or hurl it with a trebuchet, fruitcake holds a dense place in holiday traditions. Learn how it came to be (and where to win prizes for throwing it) in this episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/menus/fruitcake.htmSee omnystudio.com/listener for privacy information.
Why Carve Radishes for Christmas?
In Oaxaca, Mexico, a pre-Christmas tradition has hundreds of artists carving radishes into fun and festive figures every Dec. 23. Learn about La Noche de Rábanos in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/culture-traditions/holidays-christmas/mexicos-night-of-radishes.htmSee omnystudio.com/listener for privacy information.
BrainStuff Classics: Why Don't Evergreen Trees Lose Their Needles?
Evergreens' needles are their leaves, so why don't they change color and drop in the fall? Learn how evergreen leaves work in this classic episode of BrainStuff, based on this article: https://home.howstuffworks.com/evergreen-trees-dont-shed.htmSee omnystudio.com/listener for privacy information.
BrainStuff Classics: How Do Cold-Blooded Animals Survive the Winter?
Reptiles and amphibians have all sorts of adaptations for surviving cold weather, even in places where temperatures dip below freezing. Learn how they manage the cold in this classic episode of BrainStuff.See omnystudio.com/listener for privacy information.
How Did Transcendentalism Shape America?
Transcendentalism was a philosophical movement in the 1800s that has had lasting effects in American society. Learn how it worked in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-events/transcendentalism.htmSee omnystudio.com/listener for privacy information.
How Can We Help Prevent Suicide?
Suidice is a serious public health issue in the U.S., but there are lots of things we can do about it. Learn how communities and individuals can help in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/mental-health/mental-disorders/us-needs-to-have-ongoing-conversation-about-suicide.htmSee omnystudio.com/listener for privacy information.
Which of Today's Animals Lived Alongside Dinosaurs?
When the non-avian dinosaurs died out, a lot of other animals went with them -- but some sturdy species survived. Learn how they evolved and thrived in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/earth/geology/dinosaur-contemporary.htmSee omnystudio.com/listener for privacy information.
How Has Honey Been Used in Warfare?
Ancient armies set traps of hallucinogenic honey and mead to incapacitate their enemies. Learn how mad honey works in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-events/history-hallucinogenic-mad-honey-warfare.htmSee omnystudio.com/listener for privacy information.
What Happens During a Supernova?
Supernovae are the spectacular deaths of giant stars -- and they create the elements that make up our universe. Learn how they work and what we learn from them in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/supernova.htm/printableSee omnystudio.com/listener for privacy information.
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/printableSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
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.htmSee omnystudio.com/listener for privacy information.
How Common Is Depression?
This question is surprisingly difficult answer, in no small part due to the stigma against discussing mental health. Learn about researchers' best estimates for the prevalence of depression around the world and in the U.S. in this episode of BrainStuff, with material from this article: https://health.howstuffworks.com/mental-health/depression/facts/depression.htmSee omnystudio.com/listener for privacy information.
How Does Jupiter Work?
The largest planet in our solar system has the shortest days, at least 95 moons, a few faint rings, and mysteries to boot. Learn more about Jupiter in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/46003-jupiter-explained.htmSee omnystudio.com/listener for privacy information.
BrainStuff Classics: Skim Versus Whole Milk: Which Spoils Faster?
Some food safety charts claim that whole milk goes off more quickly than skim milk, but the scientific evidence is mixed. Learn more about milk science in this classic episode of BrainStuff, based on this article: https://recipes.howstuffworks.com/dairy/does-whole-milk-spoil-faster-than-skim-milk.htmSee omnystudio.com/listener for privacy information.
BrainStuff Classics: Why Do Scorpions Glow Under Black Light?
Scorpions light up a glowing green under ultraviolet light. Science isn't entirely sure how but has a few theories on why. (Y'know, aside from "Scorpions are metal.") Learn more about scorpions' fluorescence in this classic episode of BrainStuff, based on this article: https://animals.howstuffworks.com/arachnids/why-scorpions-glow-under-black-light.htmSee omnystudio.com/listener for privacy information.
How Have Hispanic Scientists Changed the World?
From particle physics to immunology to the ozone layer, these six scientists from the Spanish-speaking Americas redefined their disciplines with their work. Learn more in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/dictionary/famous-scientists/physicists/10-hispanic-scientists.htmSee omnystudio.com/listener for privacy information.
Could We Resurrect the Dodo?
The dodo was the first animal that we watched go extinct due to human intervention -- could it be the first animal we bring back? Learn more about the dodo and de-extinction in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/extinct-animals/dodo.htmSee omnystudio.com/listener for privacy information.
What Do We Know (and Not Know) About Depression?
Depression is a common condition, and highly treatable, but there's still a lot we don't understand about how it works. Learn about depression's probable causes, usual symptoms, and effective treatments in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/mental-health/depression/facts/depression.htmSee omnystudio.com/listener for privacy information.
Should There Be Age Limits on the U.S. Presidency?
To be eligible to be elected president of the United States, you have to be at least 35 years old. But why 35? And why is there no upper age limit? Learn more in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/us-millennials-under-35-age-limit-president.htmSee omnystudio.com/listener for privacy information.