BrainStuff
2,648 episodes — Page 3 of 53
Can a Turtle Outgrow Its Shell?
A turtle's shell grows with it throughout its life. Learn how a hard, protective shell can keep growing in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/reptiles/turtle-shell.htmSee omnystudio.com/listener for privacy information.
What Is Fascism?
In fascism, the needs of the people bow to the needs of the State, and violent, authoritarian leaders demand unity, sacrifice, and a strict social heirarchy in order to enact constant conquest to bring glory to the State. Learn more about the past and present of fascism in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/fascism-movement.htmSee omnystudio.com/listener for privacy information.
How Does the 'Zombie Ant' Fungus Work?
Some specialized fungi can hijack the behavior of ants, wasps, and spiders in order to spread their spores. Learn about the real-life Cordyceps and Ophiocordyceps fungi that inspired 'The Last of Us' in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/life/cellular-microscopic/zombie-ant-fungus.htmSee omnystudio.com/listener for privacy information.
What Are We Still Learning About Anne Frank?
New details are still coming to light about Anne Frank's life -- and her diary still has a lot to teach us. Learn more in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/anne-frank.htmSee omnystudio.com/listener for privacy information.
BrainStuff Classics: Why Are Whales Big (But Not Bigger)?
Whales are some of the largest creatures on Earth -- but why? And why aren't they bigger? Learn a whale of a tale about ocean mammals in this classic episode of BrainStuff.See omnystudio.com/listener for privacy information.
BrainStuff Classics: Was Earth's Oldest Rock Found on the Moon?
The oldest known intact Earth rock was collected on the moon in the 1970s. Learn how researchers think it got there it in this classic episode of BrainStuff.See omnystudio.com/listener for privacy information.
What Were Prehistoric 'Hell Pigs'?
Enormous, pig-like omnivores with bone-barbed faces and long tusks once hunted and fought throughout what's now North America, Eurasia, and Africa. Learn about the entelodonts in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/extinct-animals/prehistoric-hell-pigs-once-roamed-earth.htmSee omnystudio.com/listener for privacy information.
When Did We Start Calling American Citizens 'Consumers'?
Sometime in the 1900s, Americans began referring to themselves as consumers more often than as citizens. Learn how this mindset can make a real difference in how we take responsibility for our communities in today's episode of BrainStuff, based on this article: https://people.howstuffworks.com/american-citizens-versus-consumers.htmSee omnystudio.com/listener for privacy information.
How Does Saliva Work?
Saliva is something you probably (hopefully?) don't think about too much, but it helps you speak, eat, taste, and even digest. Learn about the wonders of spit in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/systems/digestive/saliva-change-food.htmSee omnystudio.com/listener for privacy information.
Who Was Harriet Tubman?
Harriet Tubman helped people escape slavery, ran intelligence missions for the Union during the Civil War, and set up the first nursing home for Black Americans. Learn more about her in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/historical-figures/harriet-tubman.htmSee omnystudio.com/listener for privacy information.
Is Pluto Really Not a Planet?
Although the International Astronomical Union demoted Pluto from a planet to a dwarf planet in 2006, some scientists think it deserves to be reinstated. Learn why in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/pluto-is-it-planet-after-all.htmSee omnystudio.com/listener for privacy information.
How Do Flying Snakes Work?
Flying snakes don't really fly, but they can glide long distances from rainforst treetops. Learn what we know (and don't know!) about them in this episoe of BrainStuff, based on this article: https://animals.howstuffworks.com/snakes/flying-snakes.htmSee omnystudio.com/listener for privacy information.
Who Is Uncle Sam?
This stern, patriotic character goes back to the early 1800s, but became an icon thanks to American propaganda during WWI. Learn more about Uncle Sam in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/uncle-sam-man-myth-legend.htmSee omnystudio.com/listener for privacy information.
BrainStuff Classics: Should You Be Squatting More?
Short answer: Yeah, probably. Most Westerners have traded squatting for sitting and standing, to the detriment of our backs and joints. Learn the benefits of a good squat -- and how you can incorporate them into your day -- in this classic episode of BrainStuff.See omnystudio.com/listener for privacy information.
BrainStuff Classics: Why Don't Penguin Feet Freeze?
Standing barefoot on a glacier, human feet would freeze solid -- but penguin feet are fine. Learn why in this classic episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/why-penguin-feet-dont-freeze.htmSee omnystudio.com/listener for privacy information.
How Did 'Silent Spring' Change the World?
Marine biologist Rachel Carson published lots of books about the environment, but her investigation of DDT, 'Silent Spring', cracked open the insecticide industry. Learn about her life and work in today's episode of BrainStuff, based on this article: https://science.howstuffworks.com/dictionary/famous-scientists/biologists/10-things-should-know-about-rachel-carson.htmSee omnystudio.com/listener for privacy information.
Who Invented Sports Drinks?
Sports drinks are a multibillion-dollar business that traces back to just two brands: Lucozade from the 1920s, and Gatorade from the 1960s. Learn how they were conceived in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/innovation/everyday-innovations/who-invented-sports-drinks.htmSee omnystudio.com/listener for privacy information.
Great Escapes: What Happens When Animals Make a Run for It?
From lab monkeys to zoo flamingos to very clever orangutans, animals have made some great escapes. Learn about them in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/animals-escapes.htmSee omnystudio.com/listener for privacy information.
Do Astronauts Need Sunscreen in Space?
Ultraviolet (UV) light is both useful and hazardous. Learn why sunscreen is helpful on Earth but not in space in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/do-astronauts-need-sunscreen-in-space.htmSee omnystudio.com/listener for privacy information.
How Did a Team of Immigrants in America Help Win WWII?
During World War II, the U.S. military recruited diverse multilingual Americans -- including many immigrants -- to be trained as intelligence officers at Camp Ritchie. Learn how the Ritchie Boys helped the Allies win the war in this episode of BrainStuff, based on this article: https://history.howstuffworks.com/world-war-ii/ritchie-boys.htmSee omnystudio.com/listener for privacy information.
How Do Our Eyes Get Their Color?
There are no blue or green pigments in the human eye, so how do those eye colors occur? Learn about the complex genetics and light scattering that give our eyes their color (plus how rare different eye colors are) in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/systems/eye/rarest-eye-colors.htmSee omnystudio.com/listener for privacy information.
Who Actually Wins (and Loses) in a Trade War?
Governments impose tariffs (which are border taxes paid by the importer) to help protect their nation's businesses from foreign competition. Learn how tariffs work, how they don't work, and why they can actually hurt local businesses and consumers in this episode of BrainStuff, based on these articles: https://money.howstuffworks.com/who-wins-loses-in-trade-war.htm; https://money.howstuffworks.com/who-wins-and-loses-if-us-imposes-steel-tariffs.htmSee omnystudio.com/listener for privacy information.
Why Are Komodo Dragons So Deadly?
We used to think Komodo dragons harbored bacteria in their mouths that made their bites deadly, but it turns out they have venom and iron-tipped teeth to thank. Learn more in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/animal-facts/komodo-bite.htmSee omnystudio.com/listener for privacy information.
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.