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Stuff You Should KnowHow do labor unions work? Are we obsessed with goals? Join Josh and Chuck as they explore the Stuff You Should Know -- seriously, all of it -- in this podcast from HowStuffWorks.com.
We’ve all been brought up to keep our eyes on the prize and our pedal to the medal when we go for that brass ring, but does the Western interest in goals verge on an insane obsession? Learn how goals work (and if they’re healthy) with Chuck and Josh.
Yes, it’s true: Unions have a shady mob-related past and were originally championed by anarchists. Born from medieval trade guilds, these organizations also helped grow the American economy, and not only protected but established workers’ rights.
What will the Earth be like in 5,000 or 50,000 years? In this far-sighted episode, Josh and Chuck explore how Earth may change over time. Listen in to learn more about humanity's odds of survival -- and how technology just might save us.
Interpol is an international police agency that helps other law-enforcement agencies track criminals who operate across national borders -- but how does it work, exactly? Join the guys as they delve into the world of global law enforcement.
Shotgun houses are iconic pieces of American architecture: they're long, narrow, and filled with artistic flourishes. But where did they come from? In this episode, Chuck and Josh explore the mysterious origins of shotgun houses.
Today nutmeg is commonplace, but this wasn't always the case. In the 17th century, the Dutch and the British fought a trade war over nutmeg. Join Chuck and Josh as they travel across continents and centuries to trace the story of nutmeg and Manhattan.
When the Visigoths ruled Spain, they introduced the idea of battling bulls at festivals. Today matadors get paid $100,000 and perform in front of 50,000 fans. But is bullfighting an antiquated, abusive relic or a cultural tradition above reproach?
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Sure animals talk in their own way, with chirps and grunts and the like, but only humans can form words. It is this, some evolutionary psychologists contend, that is what truly separates us from the rest of the species on the planet. But why us?"
Some quarters of the medical establishment endorse it, others abhor it. The DEA is cracking down on it, but the Veterans’ Administration supports it as a treatment for soldiers. Medical marijuana is indeed a contentious issue. Learn all about it here.
You know how when you fly in an airline you usually don’t die? You can thank the battalion of air traffic control professionals who studiously track every moment of your flight to ensure its safety. Learn all about this unsung field with Chuck and Josh.
Do you know that up until July 2011 an ambitious hacker with a good software program could deduce your social security number based on your date and place of birth? In this episode, the boys examine some of the lesser-known details of the Social Security system in the U.S.
Despite its embattled status as brutal and illegal, commercial whaling is a tradition that dates back 1,000 years and served as the economic engine of the Industrial Revolution. Join Josh and Chuck as they explore the whaling life then and now.
Chuck and Josh end up making reduxes of past episodes on things like sweating and deodorant in this all-new episode on the science beneath what makes people smell. Learn all about your odor in this episode of Stuff You Should Know.
While the search for Atlantis has been pushed to the fringes since the 19th century, archaeologists have quietly pursued cities that may have inspired Plato to fabricate the mythical city. It looks like a team in Greece has found it.
At long last, Josh and Chuck take on perhaps their most important topic ever. Learn about the history of beer, how it’s made -- the whole shebang, basically -- in this watershed episode of Stuff You Should Know.
There's no denying that diamonds are pretty -- but where do they come from, and why are they so expensive? Join Chuck and Josh as they explore everything about diamonds, from their formation to the mining process and the history of the DeBeers cartel.
Today music sampling is a common practice, especially in electronic or hip-hop music. But how does it work? After all, other artists made the original music, and most of them would presumably like to be paid. Tune in to learn more about music sampling.
Who doesn't love a good story about comeuppance? Whether served cold or piping hot, revenge is an ancient idea -- and history is filled with acts of vengeance. Join Josh and Chuck as they trace the concept of revenge from the bygone days of Hammurabi to the modern era.
Tipping is commonly expected in some places, such as U.S. restaurants. Yet this practice varies across cultures. Join trivia gurus (and former waiters) Josh and Chuck as they take a closer look at the history, practice and controversy surrounding tipping.
Although you might not be a fan of comic books, there's no denying that they have a fascinating place in American history. And -- as if that wasn't interesting enough -- Josh and Chuck decided to break down the story of comic books live at SXSW.
Did they or didn’t they? There is plenty of written evidence that the ill-fated Donner Party resorted to cannibalism – except there are no bones. Learn the details of one of the worst disasters of the early West in this episode of Stuff You Should Know.
If you’ve got half a heart it’s an easy question to answer. But if you’re happy living without polio and hepatitis B you may want to question further. Learn about what makes chimps special and the history of medical testing in this episode.
Stories of a great flood and a man who managed to stay afloat while the world drowned abound in ancient traditions. Join Josh and Chuck as they explore the possible evidence of the Great Flood and whether Noah really existed.
Pretty much everything you know about duels is true – it’s a challenge to violence to defend honor. But did you know the U.S. Navy used to publish detailed guidelines in its midshipmen’s handbook? Learn all there is to know about dueling in this episode.
SETI stands for 'search for extraterrestrial intelligence,' and the term is used to describe both the SETI institute and the search for alien life in general. In this spaced-out episode, Josh and Chuck explore the origin, aims and challenges facing SETI.
You probably did it around 70 times last year, yet you probably don’t understand the psychological and physiological processes at work when you cried. Don’t feel bad – no one does. Join Chuck and Josh as they poke around your tear ducts in this episode.
Avoiding food for religious or health reasons has been around for millennia. But while God may appreciate the sacrifice, how does it affect the body? Join Josh and Chuck to find if fasting actually can be healthy or if it’s as bad an idea as it sounds.
Psst. You want to know how governments and corporations get the drop on one another? The frontline of intelligence is populated by spies. Learn about how spies get and transfer information (and why they do it) in this episode of Stuff You Should Know.
In the 400th episode of Stuff You Should Know, Josh and Chuck take a trip through the morgue and look over the shoulders of the often controversial coroners and medical examiners that open cadavers to determine how someone died.
Few numbers have as storied a past as zero. Even fewer have had as great an impact on our ability to understand our universe. Yet zero is a relatively recent arrival in math. Find out all about this surprisingly fascinating number with Chuck and Josh.
Coral reefs are the largest organic structures on Earth, yet they're created through a symbiotic relationship between creatures about 3 millimeters long. Learn more about the the world’s coral reefs (and how to protect them) in this episode.
There aren’t many criminal pursuits that are as storied as pickpocketing, and some people fondly reminisce over its heyday. Learn why some consider pickpocketing an art form, how to protect yourself from this art and more in this episode.
In a desert in Texas a 200-feet-tall clock is being constructed deep inside a mountain. Once completed, it will keep time for the next 10,000 years, even if there are no humans around to use it. Tune in as Chuck and Josh get to the bottom of the Long Now.
For thousands of years, humans have used hallucinogenic mushrooms for spiritual reasons. Today, however, having them can get you thrown in prison. How do magic mushrooms do what they do? Can they help the mentally ill? Find out in this far out episode.
Floods happen when more water is introduced to an area than can be quickly removed. That’s about it, but there's more to floods, what causes them and the havoc they can wreak. Join Josh and Chuck in this super-saturated episode of Stuff You Should Know.
Despite worldwide prohibitions, slavery still exists. Slaves are forced or coerced into prostitution or made to work in deplorable factory conditions. Yet there’s still debate over how widespread the problem is. Learn about modern slavery in this episode.
Perhaps it’s the colorful masks or the high-flying, rapid-fire acrobatic moves. Whatever it is, there’s something uniquely and particularly entrancing about Mexican wrestling, called lucha libre. Learn more about lucha libre in this episode of SYSK.
You know those trails that jets leave in the sky? While science has explained why they happen, plenty of conspiracy theorists believe there’s more to it. Join Josh and Chuck as they channel the guys from Stuff They Don’t Want You to Know in this episode.
There’s roughly 500,000 squares miles encompassed in a triangle with points in Miami, Bermuda and San Juan. There shouldn’t be anything different about this area, but some people believe it’s a hotbed of supernatural activity. Tune in to learn why.
The answer is yes, but there’s a lot more to traveling to the southernmost continent. Learn why emperor penguins don’t make eye contact with humans, which country has the best research station and why the chances of your ship sinking are alarmingly high.
When Howard Carter opened Tutankhamen's tomb, some believe he unleashed a curse on everyone associated with his expedition. But there’s no such thing as a curse, right? Learn the scientific basis beneath King Tut's curse as Chuck and Josh Meet the Mummy!
You may have played with a yo-yo before -- perhaps you’ve even walked the dog -- but do you know about the physics behind what makes a yo-yo sleep and wake up? Learn all about inertia, angular momentum and the history of the yo-yo in this episode of SYSK.
There’s a 98 percent chance you’re drinking coffee right now. Maybe not, sure, but coffee is ubiquitous – about 80 percent of Americans consume coffee and Brazil alone has 3 billion coffee plants. Learn all about the great black brew in this episode.
Chuck and Josh test the limits of their decorum as they explore the physiology of an orgasm. Learn all about this inexplicably taboo subject (including how even women who are paralyzed can experience orgasms) in this episode of Stuff You Should Know.
Have you ever wondered why the poinsettia is the official plant of Christmas or why we hang stockings by the chimney with care? Join Chuck and Josh for this very special Christmas episode. Who knows, maybe even St. Nick will make an appearance (he doesn’t).
Lt. John Pike of the Davis, Calif., police department brought the wrath of the Internet on himself when he casually doused peaceful protestors with pepper spray. Find out what was in the can in this eye-watering episode of Stuff You Should Know.
Earthworms come in a wide range of sizes: The average U.S. earthworm is 6 to 11 inches long, and the giant worms of Australia and South America can grow to a length of 11 feet. Join Josh and Chuck as they burrow into the weird world of earthworms.
If you're accusing someone of disloyalty or subversion without decent evidence, then you may be guilty of McCarthyism. In this episode, Josh and Chuck explore the origin of the term, starting with the infamous Communist-hunting Senator Joseph McCarthy.
The digestive system uses mechanical and chemical processes to absorb and transport all the nutrients your body needs to survive -- but how does it work? In this episode, Josh and Chuck take you through all 30 feet of the average digestive system.
Benjamin Franklin first came up with daylight saving time in 1748, and people still practice it today. But how does it work? What are the pros and cons? Join Josh and Chuck as they turn back the clock to explore the origins of daylight saving time.
Sure we take it for granted the elephant represents the Republican party and the donkey Democrats, but have you ever wondered why? Josh and Chuck explore the foundation of these bizarre political symbols in this old-timey episode of Stuff You Should Know.
Chuck and Josh take a stab at answering the age old question of whether cash or plastic is the best choice for paying your way through life. Join them as they look at shopping, theft, security and the heartbreak of overdraft fees in this episode.
It’s been just 300 years since the Thoroughbred breed has been around, but it has produced some of the most storied animals humans have ever loved. Chuck and Josh dive into what makes these horses special and the controversy around racing them.
Sure, they look cool. It’s as if someone put a bow and a rifle together, but in fact crossbows predate firearms by a few thousand years. Learn all about the advantages crossbows bestow, the physics behind them and how to use one with Josh and Chuck.
As you might imagine, the President of the United States doesn't fly coach. But what exactly does he use when traveling from point A to point B, and how does it actually work? join Josh and Chuck as they demystify Air Force One.
Sure, you've heard stories about Alcatraz. From high-profile escape attempts to tales of notorious inmates, the Rock is unique in American history. But how did it
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actually work? Join Josh and Chuck as they explain the Stuff You Should Know about Alcatraz.
The first televised Presidential debate had some odd results: The radio audience tended to believe Nixon won, while television viewers supported Kennedy. Today, debates continue weld an enormous influence on public opinion. But how do they work?
Should a company be able to own the rights to something found inside your own body? In this episode, Chuck and Josh delve into the complicated, controversial world of gene patents. Tune in to learn more about the history -- and future -- of gene patents.
The pre-colonial range of the American bison stretched from Canada to Mexico. From 1820 to 1880, the population dwindled from 30 million to just over 1,000. Join Josh and Chuck as they explore how bison were brought back from the verge of extinction.
The autobahn has an international reputation, and people around the world love the notion of driving on a road with no speed limits -- but how true is this reputation? Join Josh and Chuck as they tell you everything you need to know about the autobahn.
It's Halloween again, and this year Chuck and Josh are ringing in the holiday with a special reading of the short story "Berenice," by Edgar Allan Poe. Tune in to catch Stuff You Should Know's Poe-rific Halloween episode.
There may be a Bizarro World in our universe. Every particle has a mirror image with a reverse electrical charge, and when these opposites meet an energy transfer 300 times stronger than nuclear fusion occurs. Could this reaction power spacecraft?
If you live in a place where privacy is protected, the legal system keeps prying eyes from your personal information. But does that privacy extend beyond death? That depends. Tune in to learn more.
The Nile River has been flowing south to north for about 30 million years, and the human race’s cradle may have been along the Blue Nile stemming from Ethiopia. Find out some amazing facts about what may be the world’s most important river.
In the 19th century, typhoid was considered a disease of the lower classes. When an outbreak occurred in wealthy Oyster Bay, New York, a mystery was afoot. Tune in to learn how this event began an ongoing debate over public safety versus civil rights.
Few riots can be attributed to passing fashions, but zoot suits are top among them. After originating among the Harlem Renaissance crowd, the zoot suit came to symbolize political defiance. Find out why it’s still illegal to wear a zoot suit in L.A.
Since its inception, the Peace Corps has sent 200,000 members to 193 countries to deliver aid and good will through know-how rather than direct funding. Learn about the successes, criticisms and dangers of the Peace Corps in this gung-ho episode of SYSK.
When the Japanese invaded Southeast Asia in World War II, they cut off America's rubber supply. Luckily, American can-do created a synthetic rubber and saved the War. Learn about the inventor, fluid chemistry and more in this episode of SYSK.
Thought Chuck and Josh had already covered every law enforcement agency? Think again. The Marshals Service is the oldest law enforcement branch in the land, dating back to 1789. Listen up for how to get a free ride courtesy the Marshals in this episode.
Houdini suggested that sword swallowing was merely a trick. But there’s no sleight of hand or throat to this ancient practice. Practitioners really do swallow swords, car axles and more. Learn more about sword swallowers in this gag-reflexive episode.
After 800 years of creating coats and crests, some meaning has been lost to history, but much has been retained and is still in use. Find out what a mullet on field argent with stags rampant means in this Olde English episode of Stuff You Should Know.
Over the course of our lives, 80 percent of us will experience acne. Ultimately, acne comes down to one thing, a blockage in the sebaceous gland. Learn what makes a blackhead black, and everything else about zits, in this pus-filled episode of SYSK.
Did you know that science still doesn’t know the exact origin of the moon? Do you know how the moon creates high and low tides? Do you know the difference between a waxing crescent and a waning gibbous? You will after listening to this riveting episode.
Gambling predates the written word; dice made of bones have been discovered at prehistoric sites. Today, the concept of amassing a fortune in moments remains attractive. Join Josh and Chuck as they take a look at the games and the glitz of casinos.
The World Trade Center was once a global symbol of progress. Since the attacks of Sept. 11, the area has undergone a massive rebuilding process. Chuck and Josh take a look at the World Trade Center, its memorial and its symbolism in this special episode.
Over the centuries, some scientists have concluded that the best test subject is looking at them in the mirror. Join Josh and Chuck as they explore 10 researchers, unsung or otherwise, who put their own health second to the advancement of science.
Instead of actually detecting lies, polygraph machines sense physiological variations, ostensibly brought on by guilt. The results are subject to interpretation, and therefore controversial. Join Josh and Chuck as they investig
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ate the polygraph.
In 1964 The Prospect of Immortality laid out a plan for placing humans in suspended animation. The first person was placed in cryonic suspension three years later. But how does it actually work? Learn more about cryonics in this chilly episode of SYSK.
Cheese is often overlooked as a one of humanity's great achievements. Making cheese is surprisingly easy: It's been accidentally created by more than one culture at different times. Tune in to learn more about cheese -- and enjoying it -- in this episode.
Up to 24 million people worldwide have schizophrenia. Despite the vast amounts of research, the disorder remains mysterious. In this episode, Josh and Chuck delve into the nature of schizophrenia, from the history of the disorder to the latest research.
The U.S. Government's Consolidated Terrorist Watch List keeps track of people who are known or suspected terrorists. But what how do people end up on it, and what happens if your name is similar to a suspected terrorist? Tune in to find out.
Years back, Josh recorded this show without Chuck, and the old version's omitted facts bugged him. In this new version, the pair delve into the people, science and rocket tests behind Murphy’s Law. Join Josh and Chuck for this properly-executed episode.
The response to humor starts with electrical activity, potentially translating to physical responses that make up laughter. Science still can’t pin down what makes one thing amusing and another not (which is pretty funny). Tune in to learn more.
It's tough to predict the future. Instead, the future looks a lot like it does now: Faster data transfer rates, more social networking, ubiquitous mobile devices -- and possibly dumber people from using all this stuff.
In 1820, most of the drugs listed in the American Pharmacopoeia were plant-based; by 1960, it was a mere 5 percent. Yet in the late 20th century this trend reversed. Why? Join Josh and Chuck as they get to the root of ethnobotany and plant-based medicine.
A condition known as chromhidrosis can be jarring: The sufferer excretes colored sweat from the eccrine or the apocrine sweat glands. Join Josh and Chuck as they explore this somewhat understood, but still bafflingly mysterious medical condition.
SPAM is a canned meat product made from pork shoulder and ham. First introduced in 1937, this iconic food has spread to stores across the world. But what exactly is it, how did it get here -- and why is its shelf life "indefinite?" Tune in to find out.
Wildfires consume an annual average of 5 million acres in the US. But what causes wildfires? How do they become so powerful? More importantly, how do we fight them? Join Josh and Chuck as they take you to the frontlines of the fight against wildfires.
While it’s kind of perverted in the West, the concept of karma is a central tenet of several Eastern religions. Karma isn't just good or bad -- it’s a natural law. Join Josh and Chuck to learn more about karma in this religiously respectful episode.
You smile because you’re happy, yet happiness research suggests the opposite can also hold true. Smiling may actually improve your mood. Open interpretation make for the best SYSKs, so prepare for an old-fashioned academia studyfest with Chuck and Josh.
What makes America unique? In the second segment of this special two-part episode, Josh and Chuck join up with guests from The Daily Show and The Onion to take a closer look at the Stuff You Should Know About America.
What makes America unique? In the first segment of this special two-part episode, Josh and Chuck join up with guests from The Daily Show and The Onion to take a closer look at the Stuff You Should Know About America.
There's no question that human cannonballs are daredevils. They pack themselves into the confines of huge cannons, which shoot them into the air. But how does it work? Join Josh and Chuck to learn more about the bizarre performances of human cannonballs.
Hate is generally defined as an extreme hostility to something or someone, usually stemming from fear, anger or a sense of injury. But how does it work? Join Josh and Chuck as they dig into the nature of hate.
John Billington didn't just sign the Mayflower Compact -- he was also the colony's first criminal, and had the dubious honor of being the first European to be convicted of murder in this new place. But how did it happen? Tune in to find out.
There may be trillions of dollars' worth of resources in asteroids, and some scientists believe we could mine nearby asteroids. Join Josh and Chuck as they explore how asteroid mining might work (and why we haven't done it yet).
Although U.S. museum collections are rife with counterfeits, shrunken heads are far from fiction. The Shuar tribe of Ecuador has shrunken heads for centuries. Learn the methodical process of shrinking a head and how they’re used in this episode.
It 1981 the first modern suicide bomber blew himself up. But this was by no means the first suicide bombing. Israeli psychologists evaluated the motivations of suicide bombers and found a number of commonalities. Join Josh and Chuck to learn more.
Alternately hailed a crucial part of the human condition or accused of killing cats, curiosity remains a subject of debate among researchers. Where does it come from? How does it work? Join Chuck and Josh as they explore the mysterious roots of curiosity.
Military snipers always work in pairs, and they're called force multipliers because of the profound effect a two-man team can have on a rival military. But how do they work? Join Josh and Chuck to learn more about snipers.
Thomas Malthus concluded that humanity is bound to outgrow Earth's carrying capacity. The prediction was based on humanity's exponential growth and the linear growth of the food supply -- but was he correct? Tune in to find out.
As early as 1786, groups assembled to help slaves escape lives of bondage. And, as the 19th century progressed, the emergent Underground Railroad grew more sophisticated in aiding escaped slaves. But how did it work? Join Josh and Chuck to learn more.
Fear results from your brain's reaction to a stressful stimulus, and -- though it may be unpleasant -- it plays a crucial role in the life of every human being. But how does it work (and why)? Join Josh and Chuck as they explore the sensation of fear.
Sure, nicotine doesn’t cause cancer, but it does rearrange the brain's reward system. Humans have been ingesting this plant for more than 6,000 years, but we generally understood little of it. Join Chuck and Josh as they explain how nicotine works.
Whether through revolution, colonization or other means, every country has its start somewhere. But how does the process work? Join Josh and Chuck as they explain how countries get created -- and why some countries aren't always recognized by others.
Terror management theory isn't about mid-level bureaucrats in Al-Qaeda -- so what exactly is it, and what does it say about human culture and our perception of mortality? Join Chuck and Josh as they explore the implications of terror management theory.
In the process of parallel evolution, two seemingly unrelated species living in isolation can evolve surprisingly similar traits -- but how does it work, and why does it happen? Join Chuck and Josh as they break down the process of parallel evolution.
Could the sun, typically known for providing light and warmth, kill us? The Apollo 17 mission almost resulted in tragedy due to a mega-flare -- and astronauts aren't the only ones at risk. Join Josh and Chuck to learn more about the sun.
They say you can’t con an honest man, and that’s key to thwarting cons; if it sounds too good to be true, it probably is. Learn how to avoid everything from small-time scams to the Nigerian money transfer in this captivating episode with Chuck and Josh.
Mountaintop removal mining is (to say the least) a controversial practice. But what exactly is it, how does it work and -- most importantly -- why should you care? Listen in to learn more about the effects of mountaintop removal mining.
How does memory work? How is internet access changing the function of the human brain? In this podcast, Josh and Chuck take a closer look at the science behind memory -- and how modern technology may be changing it.
The art of parkour is an astonishing combination of agility and physical strength pursued across the world -- but how does it work? Join Josh and Chuck as they explore the philosophy, history and pursuit of this unique form of artistic expression.
Whether you're a rollercoaster fan or avoid them like the plague, there's no denying that these contraptions are striking examples of physics at work. So how do they actually work? Join Josh and Chuck as they break down the mechanics of rollercoasters.
Historically speaking, decapitation was a popular means of execution -- it's been used by everyone from ancient Romans to French revolutionaries. But is there any truth to claim that victims retain their consciousness? Tune in to learn more.
Whether it's oral, scrawled in blood or signed on a deathbed everyone should have a will. But how do they actually work? Join Chuck and Josh as they explain that "of sound mind" thing in this episode on wills.
Flies: They’re disgusting, disease-spreading flying machines. They’re also really fascinating. Flies taste with their feet, smell with their antennae and use a pair of eyes as a compass oriented to sunlight. Listen in to learn more.
During the 1930s-80s, the work of directors operating in the shadows of Hollywood led to explorations in sexuality and violence that mainstream cinema wouldn’t touch. Join Chuck and Josh as they explore the seedy underbelly of grindhouse flicks.
After botching a particularly tricky dish, molecular chemist Herve This decided to figure out why his recipe didn't work. He ended up creating a new field of cuisine: Molecular gastronomy. Join Josh and Chuck as they explore this new frontier of cooking.
In an uncertain economy, investors often flock to commodities like oil, trading oil futures in a derivative market. Some believe this creates an artificially high price. Join Josh and Chuck and learn if this market is responsible for inflating gas prices.
Pop quiz: What word denotes a nation of people, a last name and an occupation? If you guessed 'Sherpa,' then congratulations: You're correct. But what exactly is a Sherpa? Tune in and learn more as Chuck and Josh explore the culture of the Sherpa people.
In this episode, Josh and Chuck ditch the studio and head west -- south by southwest, in fact -- to record a live podcast in Austin, Texas. Tune in and learn more Stuff You Should Know about SXSW and UFOs.
Igloos were traditionally used by Inuit Indians as temporary shelter while on hunting and fishing trips. In this episode, Josh and Chuck look at the design of igloos, from their impressive heat-catching properties to their ingenious construction.
Due to a condition known as Thomsen's disease, the muscles of fainting goats tense up whenever the animal is startled. In this episode, Josh and Chuck break down the science behind this bizarre condition. Tune in and learn more.
The recent disaster in Japan has caused massive damage and killed thousands -- but that's not all: The Fukushima nuclear plant may possibly be on the verge of a meltdown. Tune in to learn how meltdowns work, and what a meltdown would mean for Japan.
Freegans prefer scavenging, volunteering and squatting to the more mainstream consumer practices of buying, working and renting a home. But how does this actually work, and why are these people sometimes called 'Dumpster divers?' Tune in to find out.
A mummy is a human being whose soft tissue has been preserved after death, and there are mummies around the world -- including natural mummies, as well as corpses that have been intentionally embalmed. Join Chuck and Josh to learn more..
It's a controversial idea, to say the least: If evidence shows that addicts tend to be irresponsible, abusive parents, then why should they have children at all? In this podcast, Josh and Chuck explore the practice (and legality) of sterilizing addicts.
Cults are conventionally understood to be unestablished, non-mainstream religious groups that follow a single leader. So what does it take to be the leader? Tune in as Josh and Chuck take a closer look at cults.
A fossil is a piece of once-living organic material that has undergone a transition from an organic state to an inorganic state. But what exactly is fossilization? Listen in as Josh and Chuck break down the process of fossilization.
During World War II, the U.S. interned more than 100,000 Japanese and Japanese-American citizens. In this episode, Chuck and Josh recount the events that led to these internments, along with the long-term consequences of these events.
When high inflation, slow growth and high employment combine, they result in an unfortunate economic situation known as stagflation. But what exactly is stagflation, and how does it work? Most importantly, how can we prevent it in the future?
What's the deal with tickling? Why does it make people laugh, and what's the science behind the reaction? Join Chuck and Josh and listen in as they demystify the curious practice known as tickling.
Crime scene photography is a crucial aspect of forensic investigation, but it's by no means a new part of detective work. In this episode, Chuck and Josh explore the history and modern use of crime scene photography.
Numerous television shows feature blood pattern analysis -- but how do these fictional portrayals measure up to the real thing? Tune in as Chuck and Josh break down the science behind blood pattern analysis.
The Black Death was gruesome: Symptoms included tumors, purple splotches, fevers and vomiting. But how did this disease manage to spread from the Gobi desert and kill approximately one-third of the population of 14th-century Europe? Tune in and find out.
Bartering is an ancient practice. With the emergence of money-based transactions, it's no wonder that people might think bartering is a thing of the past. Tune in to learn more about the bartering process -- and where it's still used today.
For decades, Scooby Doo has captivated children across the world. It's been translated to multiple languages and remains as popular as newer programs. But why? Join Chuck and Josh as they shed light on the seemingly endless allure of Scooby Doo.
Why would someone fake an illness? Here's an even better question: Why would someone repeatedly make themselves sick? Join Josh and Chuck as they separate the facts from fiction and give you the scoop on Munchausen syndrome.
It's no secret that people in crowds will behave differently than they would if they were alone. In a riot, individuals may exhibit a drastic change in their behavior -- but why? How? More importantly, how can riots be controlled? Tune in to find out.
Venom isn't unique to snakes -- animals like scorpions, spiders, jellyfish and even platypuses can all use venom. Join Chuck and Josh as they explore the world's most venomous creatures (and break down the difference between poison and venom).
Oceans cover more than 70 percent of Earth's surface. But could the kinetic power of the tides or the oceans' thermal energy become the world's future power source? Listen in as Josh and Chuck break it down.
Many people are familiar with depictions of the Mafia in film, but what's the real story? Join Chuck and Josh as they break the infamous code of silence and shed light on some of the most dangerous and mysterious organizations in the western world.
Acupuncture is an ancient Chinese practice rooted in the precepts of Taoism, and for thousands of years it has been used to treat a range of ailments. The western world has historically dismissed this treatment -- but why? Tune in and learn more.
Today every schoolkid learns a fair share of facts about clouds and the water cycle, but this wasn't always the case. Join Chuck and Josh as they break down the history behind the classification of clouds and the way they form, all in one handy podcast.
At what point does something become an antique? Cou
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ld that old piece of furniture in the attic be worth millions of dollars? Join Josh and Chuck as they break down all the Stuff You Should Know about antiques.
Since gluten is found in rye, wheat and barley grains, it's a near-ubiquitous part of many diets. So why do some people avoid this common protein? Tune in as Josh and Chuck break down the concerns surrounding gluten.
Volcanic eruptions are destructive and often newsworthy events, but why do they occur? What are volcanoes? In this episode, Josh and Chuck take a look (but not too close) at the forces at work behind Earth's geological "hotheads."
Immigration systems regulate the flow of foreign immigrants into any given country. But why is immigration such a controversial topic, especially in the United States? In this episode, Josh and Chuck delve into the details and debate behind immigration.
Today, millions of people around the world are homeless. In this episode, Josh and Chuck take a look at homelessness in the United States, discussing everything from the factors that lead to homelessness to what you can do to help alleviate the situation.
Famed aviator Amelia Earheart's disappearance in 1937 is a mystery that endures to this day. Why don't we know what happened to her? In this episode, Josh and Chuck examine the facts and evidence behind the famous case.
Most people know what a migraine headache is -- some from painful experience -- but there's a lot more to this "neurobiological condition" than an achy noggin. Josh and Chuck explore the symptoms, triggers and mysteries of migraines in this episode.
Agritourism marries farming and tourism, but why do people pay to pick apples or work on a farm? And who does agritourism benefit? Josh and Chuck explore the history and various incarnations of agritourism, as well as the rationale behind it.
Hanukkah is an eight-day Jewish holiday, but what's it all about? And why do some people think of it as "Jewish Christmas"? In this episode, Josh and Chuck share Stuff You Should Know about Hanukkah.
Demolition and construction creates a lot of waste, so renovating your house is generally a "greener" option. In this episode, Josh and Chuck explore some green renovation and construction options.
The rules of war are agreed-upon rules that are intended to govern international wars and conflicts. Who developed these rules? And do countries really abide by them? Josh and Chuck take a detailed look at how the rules of war work in this episode.
Circumcision is a common practice in which the foreskin of a male's penis is removed, typically as a baby. Josh and Chuck take a look at the origins, practices, and arguments for and against circumcision in this episode.
Dreadlocks are matted coils of hair that form a very distinctive (and often misunderstood) hairstyle. So what's the deal with dreads? In this episode, Josh and Chuck examine the long history of dreadlocks and walk you through the process of dreading hair.
A majority of human cultures practice kissing in one form or another. But why do we kiss? Is the behavior instinctive or learned? In this episode, amateur philematologists Josh and Chuck take a look at the biology, sociology and pyschology of kissing.
Over a billion people do not have access to clean water, and many die from water-born diseases. With 6,000 people dying each day, this situation is increasingly urgent. Could Lifestraw filters resolve this crisis? Tune in and find out.
It's no secret that human beings have an obsession with innovation -- but has our species already found every good idea? As Josh and Chuck break down the continuing search for the next great idea, they touch on everything from hand tools to cancer cures.
These days, alcoholics and other people suffering from addictions are often sent to rehabilitation centers to kick their habit. But how long has rehab been around, and how does it work? Listen in as Chuck and Josh present the fascinating process of rehab.
Prohibition was a 13-year period in American history when selling or producing alcohol was illegal. What led to this astonishing development? Why did it end? Josh and Chuck take a look at Prohibition's fascinating history in this episode.
Modern scientists have extensively researched addicts and the things they abuse, but we still don't understand everything about the nature of addiction. So how does it work? Tune in to learn more about addiction (and why you can't kick your SYSK habit).
When you think of animal migrations, you probably picture thousands of animals thundering across the savannah. But where are they going, and why? Josh and Chuck explain why and how animals migrate in this episode.
In this spooky episode of Stuff You Should Know, Josh and Chuck get you ready for Halloween as they narrate H.P. Lovecraft's creepy tale "The Tomb." Tune in to learn more...if you dare!
All of us have experienced the feeling of jealousy at some point or another. But why do we get jealous? Are women really more jealous than men? Josh and Chuck get to the bottom of jealousy in this episode.
Hallucinogenic drugs are currently illegal, but they were once commonly used in psychological treatment. In this episode, Josh and Chuck discuss the rise and fall of psychedelics in treating mood disorders -- and why they're starting to gain favor again.
In this episode, Josh and Chuck take a comprehensive look at gender identity "disorders" and the gender reassignment process.
Traditionally, house swapping involves temporarily exchanging homes with a stranger for vacation purposes. Tune in to learn more about house swapping, from the traditional version to hospitality exchanges and couchsurfing, in this episode.
Sleep is a restorative state that's vital to human functioning -- or is it? In this episode, Josh and Chuck explore different ways in which science is trying to minimize or phase out sleep, from pills to genetic research.
In medieval times, knights were warriors with specialized skills, extensive training and their own code. In this episode, Josh and Chuck discuss the rise and fall of medieval knights and finish up with a look at the modern institution of knighthood.
Polygamy, the practice of having multiple spouses, is mostly illegal in the United States but very common in other parts of the world. In this episode, Josh and Chuck discuss polygamy and touch on a host of related topics, from Mormonism to monogamy.
If you're tone deaf, you can't hear the difference between musical pitches and notes. And it's probably a hereditary trait, as Josh and Chuck explain in this pitch-perfect episode on tone deafness.
Nowadays roller derby is increasingly popular across the US -- but how did it get its start, and how does it work? As Josh and Chuck delve into the world of roller derby, they touch on skateboarding, women's rights and more. Tune in and learn more.
The modern conception of hypnosis came into vogue in the late 18th century, and it's been the subject of much debate ever since. Does hypnosis really work? How? Josh and Chuck discuss the history, practices and feasibility of hypnotism in this episode.
Whatever you call them, octopuses are amazing creatures. In this episode, octopus enthusiasts Josh and Chuck take a closer look at the unusual anatomy, unique abilities and fascinating habits of octopi.
Biospeleology is the scientific study of cave organisms and ecosystems. In this episode, amateur biospeleologists Josh and Chuck explore the dark, dank world of caves and the weird and wonderful creatures that live in them.
Whether using polished metal surfaces or clear glass, human beings have enjoyed admiring their reflections for centuries. In this episode, Josh and Chuck reflect on the types, mind-melting physics, superstitions and rather interesting history of mirrors.
Customs agencies regulate the flow of goods in and out of countries, impose duties and enforce laws. In this episode, Josh and Chuck take a look at how customs works.
Cleaning up crime scenes is a niche industry that's both lucrative and messy. In this episode, Josh and Chuck take a look at how crime-scene clean-up works.
Established in 1998 as a way to determine college football rankings, the Bowl Championship Series (BCS) is a complex statistical system. In this episode, Josh and Chuck tackle the complex variables -- and math! -- behind the BCS rankings.
Cremation of dead bodies is practiced in many parts of the world, but how exactly does it work? Josh and Chuckers take you inside the crematorium as they ponder the cultural history, process and controversies of cremation in this episode.
There are lots of conspiracy theories about Freemasons, but how much do you really know about this secretive order? In this episode, Josh and Chuck take a comprehensive look at the origins, history, practices, beliefs and famous figures of Freemasonry.
Sleep behaviors are pretty fascinating. Some people snore, some grind their teeth -- and some take a little stroll, or perhaps a drive. In this episode, Josh and Chuck investigate how sleepwalking, or somnambulism, works.
MARS stands for Magenn Air Rotor System, but a MARS turbine isn't your typical windmill. It's a blimp floating hundreds of feet in the air. Tune in as Josh and Chuck explain how this turbine works -- and whether it will become the future of wind power.
Breathalyzers work on a simple principle: Alcohol is absorbed into the lungs and present in breath. But the machines that actually measure this alcohol level are really, really complicated. Tune in and learn more in this podcast.
Most people have a basic understanding of how prisons work, but it's often heavily influenced by fiction. What's it really like behind those bars? In this episode, Josh and Chuck reveal the practices, controversies and harsh realities of prison life.
As many as one in five houses in Vancouver, British Columbia are used to grow marijuana. Join Josh and Chuck as they step inside indoor grow houses to see what's going on.
In this episode, Josh and Chuck hit the open road as they explore the history, allure and decline of America's most iconic highway: Route 66.
In this episode, Josh and Chuck tackle a mind-melting topic: quantum physics! They ponder subatomic particles and quantum mechanics, focusing specifically on a thought experiment called quantum suicide.
A presidential pardon is a unique, unchallengable power granted to the president of the United States by the Constitution. In this episode, Josh and Chuck discuss the origins, history and controversial use of the presidential pardon.
It's no surprise that ticks are one of mankind's least favorite animals. After all, they subsist on blood and spread disease. But how much do we really know about ticks? Tune in to learn more about ticks -- and how to get rid of them -- in this podcast.
Although they might seem pretty mundane, saunas are surprisingly fascinating inventions. Josh and Chuck break out all sorts of sweaty, sauna-related trivia, from the Finnish affinity for saunas to sauna etiquette, in this episode.
Taste seems like a pretty simple se
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nse, but scientists are still trying to figure out exactly how it works. Josh and Chuck explore the complexities of taste, from definitions and physiology to tongue maps and supertasters, in this episode.
James Bond, the most infamous secret agent ever to grace the silver screen, originated in the pages of British author Ian Fleming's novels. Amateur agents Josh and Chuck uncover all sorts of Bond trivia in this action-packed episode.
A large percentage of the world's population believes that you will be reborn after you die. So why does the concept of reincarnation seem so paranormal to Westerners? Join Chuck and Josh as they explore the ins and outs of birth, death and birth again.
Butterflies' wings are colored as a result of iridescence; this fascinating optical phenomenon is the result of light refracting off transparent surfaces. Josh and Chuck reveal how pigmentation, iridescence, light and butterfly wings work in this episode.
Voodoo is a religion found in parts of Africa and Haiti that's often misunderstood. In this episode, Josh and Chuck separate the faction from the fiction as they explore how Voodoo really works.
Thomas Jefferson is famous for his role in shaping the United States of America -- and for creating his own, revised version of the Bible. Learn more about the Jefferson Bible in this episode.
Whether you've been stuck in a traffic jam or forced to merge and avoid road construction, everyone's had a few bad experiences with traffic. But how does traffic actually work? In this episode, Chuck and Josh take a look at traffic waves (and bubbles).
In many films, hapless characters meet their untimely demise in a lethal pit of quicksand. It's a gruesome, undignified end -- but is it realistic? Josh and Chuck tackle the properties of quicksand -- and how to escape it -- in this episode.
In this episode, Josh and Chuck discuss the controversial "ghost prisons," covert prisons created by the CIA after September 11th, 2001 to secretly detain and interrogate terrorist suspects in various locations around the world, including the U.S.
The Samurai were legendary Japanese swordsmen and warriors, known for their loyalty and adherence to a strict code of honor. Josh and Chuck tackle the Samurai in this episode.
The Innocence Project is an American non-profit organization whose mission is to exonerate wrongly convicted individuals and reform the legal system. Josh, Chuck and a special "guest" explain how the organization works -- and why it's necessary.
Epigenetics is a fascinating field of genetics that studies how the epigenome and environmental, nutritional and social factors affect gene expression. Josh and Chuck explain how epigenetics works in this episode.
Recently, a massive sinkhole opened up in Guatemala City, swallowing a three-story building in the process. In this episode, Josh and Chuck explore sinkholes and the forces that cause them, natural and otherwise.
Who first decided that it would be a great idea to shoot flame at other people from a distance? Josh and Chuck talk about the (very) early origins, history and technology of the flamethrower in this episode.
The modern world runs on fossil fuel, and offshore oil drilling powers a large part of the global economy. But what do we do when disaster strikes? Join Josh and Chuck as they take a look at the techniques used to clean up oil spills in this podcast.
In this episode, Josh and Chuck discuss reservoir-induced seismicity and the conditions under which human activities and projects like dams can trigger earthquakes.
Serial killers are notorious for their grisly crimes and disturbing behavior, but what makes a serial killer a serial killer? Josh and Chuck ponder the history, psychology and methodology of serial killing and serial killers in this episode.
Josh and Chuck talk more about their experiences in Guatemala and the amazing work that the non-profit group Cooper
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ative for Education is doing there -- and how you can help! -- in part two of their Guatemala series.
Josh and Chuck share the story of their recent eye-opening trip to Guatemala, which was sponsored by a nonprofit organization called Cooperative for Education, in this very special episode of Stuff You Should Know.
Counterfeiting currency successfully takes serious skills, and some consider counterfeiting an art. Josh and Chuck recount the stories of five artful counterfeiters and their successful careers in this episode.
Twin siblings are common enough that most people know a pair or two, but why does twinning occur? Josh and Chuckers explain where twins (and babies) come from, discuss different types of twins and debunk some "twin myths" in this episode.
In general, stealing valuable items tends to be difficult and dangerous, but stealing works of art can be surprisingly easy. In this episode, Josh and Chuck cite recent art heists as they discuss why stealing art is relatively easy.
Most people are familiar with the plastic, interconnecting bricks called LEGO bricks, but what's their story? In this episode, Josh and Chuck discuss the history, popularity and trajectory of LEGOS -- and throw out some serious stats along the way.
As far as sports go, cliff diving doesn't require much equipment. It does, however, require a certain amount of chutzpah, a dash of derring-do, and a deep body of water. Tune in and learn more about cliff diving in this podcast.
When you hear the word 'genius,' names like Einstein and Hawking probably spring to mind. Defining exactly what makes them geniuses, however, is much more complicated. Josh and Chuck discuss the many theories about genius in this episode.
People with a condition known as mirror-touch synesthesia literally feel the pain of others -- but why? Josh and Chuck trace the cause of this condition to one culprit: the mirror neuron. Tune in to learn more about mirror neurons and neuroscience.
There are less than a hundred documented cases of people who cannot feel pain and suffer from a condition called congenital insensitivity to pain. Josh and Chuck discuss the dangers and symptoms of CIP and related disorders in this episode.
In this episode, Josh and Chuck discuss the most famous fortified structure in the world -- the castle. Tune in to learn all about castles, from murder holes to modern fortresses.
Gilles de la Tourette syndrome, commonly referred to as Tourette's, is a neurological disorder characterized by a combination of verbal and physical tics.
Zoos are popular because they allow visitors to see wild animals from all around the world, but how does living in captivity affect the animals? In this episode, Josh and Chuck discuss the
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pros and cons of zoos.
Josh and Chuck discuss the problem of desertification, from what causes serious degradation of dryland ecosystems to possible ways to repair the damage, in this episode.
McDonald's is arguably the most famous fast food restaurant on the planet. Join Josh and Chuck as they discuss the humble beginnings, menu items, practices and controversies of the fast food giant in this episode.
In this episode, Josh and Chuck discuss the many theories behind the mysterious phenomenon of hiccups, how long hiccuping bouts can last, and various "remedies" for hiccups.
Josh and Chuck tackle taxidermy, the practice of preserving and mounting dead animal skins for display, in this episode.
In this episode, Josh and Chuck discuss the origins, philosophies and practices of urban planning.
Vikings were fierce, plundering Scandinavian warriors; and even today, their reputation precedes them. Josh and Chuck investigate what the Vikings were really like in this episode.
In this episode, Josh and Chuck discuss the history, practices and controversies of lotteries.
Fascism is a specific political philosophy that's often mistakenly used to describe any authoritarian, supressive movement or regime. Josh and Chuck discuss the origins, history and markers of Fascism in this episode.
In this episode, Josh and Chuck demystify carbon trading, discussing everything from cap-and-trade schemes to carbon credits.
Scabies is a contagious skin disease with a bad reputation. Tune in as Josh and Chuck discuss this itchy condition -- from the mite that causes it to common cures -- in this episode.
In this episode of Stuff You Should Know, Josh and Chuck discuss the reasons why Mesopotamia is often considered the first civilization.
In part two of their series on bail, Josh and Chuck talk about bail enforcement agents, a.k.a. bounty hunters.
Bail is a centuries-old practice that allows defendants in criminal cases to be released from jail until their trial convenes. Learn more about the origins of bail and modern bail practices in this episode.
Chuck and Josh discuss five of the most bizarre government experiments, from transplanted puppy heads to Cold War psychics, in this episode.
In this episode of Stuff You Should Know, Josh and Chuckers discuss the origins and practices of the Amish.
Josh and Chuck discuss the Braille alphabet -- from its origins in Charles Barbier's "night writing" sys
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tem to the many Braille codes that exist today -- in this episode of Stuff You Should Know.
Witches are perhaps one of the most reviled and misunderstood groups in history -- but why? Join Josh and Chuck as they break down the Stuff You Should Know about witchcraft in this episode.
In this episode, amateur anthropologists Josh and Chuck discuss urban legends, from how they're defined to some classic examples you've probably heard yourself.
In this episode of Stuff You Should Know, Josh and Chuck discuss SWAT teams, elite police units that are specially trained for extreme situations.
In this episode, Josh and Chuck discuss whether there are any truly "undiscovered" groups of people left on the planet, the definition of undiscovered -- and why groups might want to avoid modern civilization.
Ninja, Japanese warriors famous for stealth, deception and sabotage, were inspired by Chinese military philosophy. Join Josh and Chuck as they explore the origins, history, gear and popularity of the ninja in this episode.
In this disaster-themed episode of Stuff You Should Know, Josh and Chuck ponder ways the world could end -- and how projects like the lunar Doomsday Ark propose to save humanity.
In this episode of Stuff You Should Know, Josh and Chuck examine the various factors that have caused honeybee populations to decline -- and what you can do to help the honeybees.
In this episode of Stuff You Should Know, amateur astrophysicists Josh and Chuck break out the stats and attempt to explain the complex, boiling ball of gas that we call the sun.
Tune in as Josh and Chuck take a detailed look at organ donation -- from the earliest organ transplants to the organ black market -- in this episode of Stuff You Should Know.
Mercenaries are soldiers of fortune who fight in wars and conflicts for profit. Join Josh and Chuck as they explore the fascinating history of mercenaries past and present in this episode of Stuff You Should Know.
Noodling is a type of fishing in which the participant uses his or her hand in lieu of fishing gear and bait. Discover the origins and practices of this unusual "sport" in this episode of Stuff You Should Know.
Human experimentation is an
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age-old practice, dating back to 4 BCE. Listen in as Josh and Chuck give you the low-down on the historic, grisly underbelly of science and medicine -- human experimentation.
Although today's pirates aren't storming the coast of Florida or other eastern states, piracy is still around in this modern age. Join Josh and Chuck as they look back at the history of piracy -- and its successors -- in this episode.
On Christmas eve, Josh and Chuck decide to take that ineffable Stuff You Should Know approach to the celebration known as Christmas. Join the guys as they unravel the mysterious historical roots of the holiday's evolution in this episode.
In this episode of Stuff You Should Know, Josh and Chuck discuss the origins and complications of concussions, injuries in which the brain comes into contact with the skull.
In this episode of Stuff You Should Know, Josh and Chuck discuss kleptomania, a disorder in which people have an overwhelming impulse to steal unnecessary items.
In this episode of Stuff You Should Know, Josh and Chuck discuss Narco States, places where illegal drugs are traded openly with government approval -- or without government interference.
In this episode of Stuff You Should Know, Josh and Chuck discuss the notorious Hells Angels Motorcycle Club, more commonly referred to as the Hells Angels.
In this episode of Stuff You Should Know, Josh and Chuck discuss the Large Hadron Collider, from its purpose and origins to how likely it is to wipe out all life in the universe.
The concept of a near-death experience is well-known in popular culture, but we still don't know why these seemingly supernatural events occur. Josh and Chuck explore the myriad theories that attempt to explain near-death experiences in this episode.
Why do we crave certain foods? Does everyone experience food cravings? In this episode of Stuff You Should Know, Josh and Chuck explore the delicious topic of food cravings.
In this episode, Josh and Chuck explain the finer points of hostage negotiation, including the symbolism of hostages, the negotiator's goals and tactics, Stockholm syndrome -- and what happens when people refuse to negotiate.
In this episode of Stuff You Should Know, Josh and Chuck discuss nuclear proliferation, nuclear parity and the Cold War strategic doctrine called Mutual Assured Destruction.
The world is full of festivals, some of which are really odd. Tune in as Josh and Chuck take a playful look at ten unusual town festivals in this episode of Stuff You Should Know.
If you've ever wondered where the expression "low man on the totem pole" comes from, this episode of Stuff You Should Know is a must-listen. Tune in as Josh and Chuck take a look at the origins, symbolism and history of totem poles.
Population may not seem like the most scintillating topic in the world, but Josh and Chuck beg to differ. Join them as they explore how population works, from demographics to population control, in this episode.
The US and England have databases containing DNA from millions of citizens. Originally only criminals were included, but as the programs expanded many more people were added. Learn how these databases work -- and why they were built -- in this episode.
In this episode of Stuff You Should Know, Josh and Chuck take a look at the advertising practice of product placement, from its origins to different types to classic examples in film and television.
Some people have memories of very early childhood, but how far back can you go? Is it possible to remember your own birth? Josh and Chuck are on the case in this episode of Stuff You Should Know.
In this Halloween episode, Josh and Chuck go way back to late 19th century London to examine the grisly details of the Jack the Ripper murders. They also discuss Ripperology, Jack the Ripper suspects and theories, and the legacy of the murders.
The Witness Protection Program, or the Witness Security Program, was established in 1970 to protect government witnesses before, during and after a trial. Learn more about witness protection in this episode of Stuff You Should Know.
The Cannon Ball Run is a cross-country car race famously portrayed in the campy 1981 movie "Cannon Ball Run." But it isn't fictional. Tune in as Josh and Chuck take you on a wild ride through the real (and colorful) history of this infamous race.
China's one-child policy, implemented in 1979, was designed to limit population growth. In this episode of Stuff You Should Know, Josh and Chuck examine the policy's surprising origins, impact on Chinese culture, and pros and cons.
After a night of heavy boozing, many partygoe
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rs find themselves the victim of a hangover. But what exactly is a hangover, and what causes it? Join Chuck and Josh as they break down the science behind hangovers -- and how to avoid them -- in this podcast.
Ever wondered about the history of your house? In this episode of Stuff You Should Know, Josh and Chuck give listeners some pointers on determining the history of a house.
Columbus is often touted as the "discoverer" of the Americas, he wasn't the first to set foot on American soil by a long shot. Tune in as Josh and Chuck dig deep into the history -- and mystery -- of the first American inhabitants in this podcast.
In this final installment of their 4-part suite on health care, Josh, Chuck and Molly take a tour of health care systems around the world, from France to Switzerland.
How do you measure happiness? How do you measure it on a national scale? Tune in as Josh and Chuck discuss Bhutan's Gross National Happiness index in this podcast from HowStuffWorks.com.
In this third episode of Stuff You Should Know's health care reform series, Josh and Chuck -- and special guest Molly Edmonds -- sort through the myths, rumors and truths behind President Obama's proposed health care plan.
In movies and stories, zombies are undead menaces that lurch around mindlessly, in search of flesh -- and braaaaaains! Where did the idea for zombies originate? Do they exist outside of fiction? Tune in to this podcast from HowStuffWorks.com to find out.
In this special episode of Stuff You Should know, the second of a four-part series, Josh and Chuck -- and a special guest -- discuss President Obama's proposed health care plan in detail.
A dog that knows exactly when its owners will arrive home every day seems to have a human perception of time, but in fact, they perceive time very differently than we do. Find out more about how dogs view time in this podcast from HowStuffWorks.com.
The United States is abuzz with talk of health care reform, but why does the system need repairs in the first place? Josh and Chuck explore how the current American health care system works (and doesn't) in this episode, the first in a four-part series.
Microlending is a practice that provides funds for entrepreneurs in developing countries who couldn't normally get loans. Tune in as Josh and Chuck discuss the pros and cons of microlending in this podcast from HowStuffWorks.com.
Armed with only a GPS and a sense of adventure, geocachers use their wits to locate containers across the world. Join Chuck and Josh as they explore the history, practice and strange origin of geocaching in this podcast from HowStuffWorks.com.
Each year, the Ig Nobel Prize is awarded to researchers for unusual -- and generally humorous -- contributions to science. Tune in as Josh and Chuck discuss the highlights of this unique awards ceremony in this podcast from HowStuffWorks.com.
Today, automobiles are undoubtedly the dominant form of transportation in the United States, but that wasn't always the case. Join Josh and Chuck as they explore the history of public transportation and automobiles in this podcast from HowStuffWorks.com.
Jim Henson's Muppets, including the beloved Kermit the Frog, first came to life in the mid-1950s. Join Josh and Chuck as they explore the history and nitty gritty details of the world's most famous puppets in this podcast from HowStuffWorks.com.
Nuclear weapons are extremely well guarded, so stealing one would be quite tricky. Join Josh and Chuck as they discuss nabbing nuclear weapons, and some surprising facts about nuclear accidents, in this podcast from HowStuffWorks.com.
H.P. Lovecraft's strange, elaborate stories and mythologies have inspired a devoted following. Join Josh and Chuck -- and a special guest -- as they discuss Lovecraft's most famous creation, the "Necronomicon," in this podcast from HowStuffWorks.com.
Sarcopenia is a form of muscle loss and coordination associated with aging. Luckily, a little extra effort can prevent its onset. Tune in to learn more about sarcopenia -- and how to prevent it -- in this podcast from HowStuffWorks.com.
Fluoride is a common additive in toothpaste and the water supply of some countries. It's purportedly good for dental health, but some evidence suggests that it's actually harmful. Discover the dark side of fluoride in this podcast from HowStuffWorks.com.
During World War II, Japanese soldiers adopted a version of the samurai code of honor. Fiercely commited to this ideology, some continued to fight even after the war ended. Learn more about these "stragglers" in this podcast from HowStuffWorks.com.
Competitive eating is a modern "sport" that's very popular in the United States. Join Josh and Chuck as they delve into the fascinatingly gross world of competitive eating in this podcast from HowStuffWorks.com.
Agent Orange was a potent herbicide used by the U.S. government during the Vietnam War. Learn more about the origins, use and devastating side effects of Agent Orange in this podcast from HowStuffWorks.com.
Whale sharks are the biggest fish in the ocean. Tune in as Josh and Chuck discuss these gentle giants, and recount their experiences swimming with them in the Georgia Aquarium, in this podcast from HowStuffWorks.com.
Tinnovators are folks who come up with new and innovative ways to use old Altoids mint tins. Learn about some of these "tinnovators" and their art in this podcast from HowStuffWorks.com.
There are some pretty disgusting parasites out there, but Josh and Chuck have settled on three particularly gross ones. Tune in to learn more about flesh-eating parasites, guinea worms and tapeworms in this podcast from HowStuffWorks.com.
Is there a negative correlation between happiness and intelligence? Is ignorance truly bliss? Josh and Chuck attempt to answer this age-old question by exploring the "science" of happiness in this podcast from HowStuffWorks.com.
Most farms host crops and animals, but body farms specialize in corpses. Join Josh and Chuck as they tackle the fascinatingly gross phenomenon of body farms in this podcast from HowStuffWorks.com.
Toxoplasmosis is a parasitic infection that favors cats, but it can also be found in humans. Discover the disturbing details of how toxoplasma gondii finds a host -- and how it affects human beings -- in this podcast from HowStuffWorks.com.
Twinkies have a reputation for being so processed that they can last for years and years, but they're not as hardy as you'd expect. Uncover the sweet story of Twinkies in this podcast from HowStuffWorks.com.
Brainwashing is an extreme form of "thought reform," but does it actually work? Tune in to this podcast from HowStuffWorks.com to find out.
The EPA tests vehicles for maximum fuel efficiency, but those impressive estimates don't always pan out in real life. Hypermiling is one sure-fire way to improve your fuel efficiency. Find out how it works in this podcast from HowStuffWorks.com.
What makes the earth quake? Join Josh and Chuck as they explore the science and history of earthquakes in this podcast from HowStuffWorks.com.
People who suffer from body dysmorphic disorder have a distorted, unhealthy view of their bodies. Learn more about this compulsive disorder in the following podcast from HowStuffWorks.com.
In a lucid dream, the sleeper is aware that he or she is in a dream state. Does that mean you can control these dreams? Where did this concept come from? Tune in to this podcast from HowStuffWorks.com to find out more about lucid dreaming.
The Peter Principle describes how workers who excel in bureaucratic systems are promoted until they reach their level of incompetence. Learn more about the Peter Principle in this podcast from HowStuffWorks.com.
The world's problems necessitate innovative solutions. Listen in as Josh and Chuck propose some innovations, from teleportation to an international language, that the world needs right now in this podcast from HowStuffWorks.com.
Carbon capture and storage is a way to filter excess carbon dioxide from the atmosphere and store it. Tune in as Josh and Chuck discuss various methods of carbon capture and storage in this podcast from HowStuffWorks.com.
Many people associate Thomas Edison with the invention of electricity, but Nikola Tesla heavily shaped the electrical system we still use today. Get the dirt on the electricity wars between Edison and Tesla in this podcast from HowStuffWorks.com.
Hydrocarbons are simple compounds that help fuel the modern world, but they're not really a sustainable resource. Explore new energy solutions, starting with biohydrocarbons, in this podcast from HowStuffWorks.com.
The EPA defines a brownfield as land that is abandoned because redevelopment is complicated by possible environmental contamination. Tune in as Chuck and Josh examine the process of redeveloping a brownfield in this podcast from HowStuffWorks.com.
Scientists have proven that spontaneous combustion, or burning without an external ignition source, can occur in some objects. But what about human beings? Tune in and learn more about spontaneous human combustion in this podcast from HowStuffWorks.com.
Propaganda, a persuasion tactic typically associated with deception, has been around for centuries. Explore the history of propaganda -- and learn how to spot it -- in this po
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dcast from HowStuffWorks.com.
People have long believed that animals have mysterious powers of prediction. Do animals really have a sixth sense? Explore the fascinating subject of psychic animals in this podcast from HowStuffWorks.com.
Lobotomies -- brain surgeries to relieve psychiatric problems -- are rarely performed today, but they were once fairly common. Tune in to learn more about the controversial history and practice of lobotomies in this podcast from HowStuffWorks.com.
These days, shopping for food can pose a dilemma. Should you buy regular, organic or local food? Check out this podcast from HowStuffWorks.com to hear Josh and Chuck discuss whether it's better to buy local or organic food.
If you've ever watched a crime drama, you know that bodies get stiff after death. But why? Explore the biochemistry behind rigor mortis in this podcast from HowStuffWorks.com.
Lakes are usually tranquil bodies of water, but in rare instances, they can be deadly. Tune in to this podcast from HowStuffWorks.com to hear Josh and Chuck discuss lakes that have exploded -- and the factors that create a killer lake.
Humans aren't truly naked apes, but other primates put us to shame when it comes to body hair. Why? Tune in to hear Josh and Chuck discuss the theories and hypotheses behind human hair growth and distribution.
In theory, credit default swaps are simply insurance against failed investments. In reality, these swaps can quickly get complicated. Tune in to this podcast from HowStuffWorks.com to hear Josh and Chuck demystify credit default swaps.
High fructose corn syrup gets a
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bad rap, but is it deserved? Tune in as Josh and Chuck discuss the origins of this ubiquitous sweetener -- and why it's not so sweet for your health -- in this podcast from HowStuffWorks.com.
Believe it or not, scientists and doctors have discovered a way to transplant part -- or all -- of a face from one person to another. Tune in to this podcast from HowStuffWorks.com to learn more about the astonishing practice of face transplants.
How much money does a person or a family need to live? Josh and Chuck are curious to find out, too. Tune in to this podcast from HowStuffWorks.com to discover how needs, wants and peer pressure affect the amount of money we need to live.
Toads have a reputation as wart-spreaders, but they're not actually to blame for the unsightly growths. Viruses are. Tune in to this podcast from HowStuffWorks.com to get the skinny on toads, warts and viruses.
Money laundering -- the practice of disguising illegal funds -- can be domestic or international in nature. Join Josh and Chuck as they take a look at the history, practice and future of money laundering in this podcast from HowStuffWorks.com.
There's been a lot in the news about Ponzi schemes lately. How do they work? And who's Ponzi? Check out this podcast from HowStuffWorks.com to discover how an Italian immigrant created a classic con that's still fleecing investors today.
You'd think that centenarians -- people age 100 and older -- would owe their longevity to healthy habits, but that's not always the case. Tune in to this podcast from HowStuffWorks.com to learn more about genes, longevity and unhealthy habits.
When it comes to shucking this mortal coil, no two deaths are exactly alike -- and some are truly bizarre. Tune in to this podcast from HowStuffWorks.com to hear Josh and Chuck discuss some of the strangest deaths imaginable.
According to the Mayan calendar, a new age will begin on December 21, 2012. Will this mean the end of the world, or just a transition? Tune in as Josh and Chuck discuss whether 2012 will be a bad year for the planet or not.
Every year, adventurers brave the elements and attempt to reach the summit of Mount Everest. Yet dangers abound, and more than a hundred bodies litter the mountain. Listen in and learn more about Mount Everest in this podcast from HowStuffWorks.com.
Does this episode seem strangely familiar? If so, you might be experiencing deja vu, a topic that scientists are beginning to study seriously. Discover the myriad theories about how deja vu works in this podcast from HowStuffWorks.com.
Anger gets a bad rap, but this unpopular emotion can actually be beneficial to us. Tune in to this podcast from HowStuffWorks.com to get Josh and Chuck's entertaining take on why we lose our cool.
Microexpressions are brief facial cues that reveal a person's true intentions. Listen in as Chuck and Josh discuss the subtle art of reading faces in this podcast from HowStuffWorks.com.
For thousands of years humankind has pursued the enhancement of sexual pleasure and performance through a plethora of medicines and practices -- but how many aphrodisiacs actually work? Listen and find out in this podcast from HowStuffWorks.com.
International waters cover 71% of the Earth's surface, and a separate set of laws and regulations govern human activity on the seas. But who actually owns the oceans? Listen and find out in this podcast from HowStuffWorks.com.
When a person has alien hand syndrome, his or her hand can move involuntarily, and seemingly of its own volition. Tune in and learn more about this misunderstood syndrome in this podcast from HowStuffWorks.com.
When Allan Snyder discovered that transcranial magnetic stimulation produces strange cognitive changes, he believed he'd stumbled upon a "creativity-amplifying machine." Learn more about the real-life thinking cap in this podcast from HowStuffWorks.com.
Almost no one likes junk mail. It's seen as wasteful, unproductive and -- potentially -- harmful. Listen in as Josh and Chuck take a closer look at the nature and effects of junk mail in this podcast from HowStuffWorks.com.
Can a human being be scared to the point of sudden death? Listen in as Chuck and Josh explore the physiological possibilities behind dying of fright in this podcast from HowStuffWorks.com.
Since 1901, about 16 adventurous souls have gone over the falls in search of fame, usually in a barrel or sphere. Tune in as our resident experts take a look at the history of Niagara Falls in this podcast from HowStuffWorks.
The practice of squatting is usually defined as camping on unused land or moving into an abandoned structure -- and it's more common than you might think. Tune in and learn more about squatting in this podcast from HowStuffWorks.
What is it about Friday the 13th that gives us the collective willies? Discover the surprising roots of this common superstition -- and what paraskevidekatriaphobia means -- in this HowStuffWorks podcast.
When it comes to survival, food and water are pretty much non-negotiable. How long can you go without them? What happens to your body when you cross that threshold? Lend your ear to this HowStuffWorks podcast to find out.
If you've ever tried to say "toy boat" three times fast, you'll know that these two words can quickly turn into one tricky tongue twister. But why? Unravel the mysteries of tongue twisters and language in this HowStuffWorks podcast.
Three decades after the first reported manned lunar landing, some theorists still believe the landing was faked. Check in as Chuck and Josh take a look at the evidence on both sides of the debate in this podcast from HowStuffWorks.
One-third of US cat owners are allergic to cats, resigning themselves to years of suffering and expense on their pet's behalf . Could hypoallergenic cats be the solution these allergic pet-lovers need? Tune in and learn more in this HowStuffWorks podcast.
Several conditions can cause comas, including brain tumors and overdoses. Tune in as the crew discusses the causes and treatments of comas -- including some miraculous recoveries -- in this HowStuffWorks podcast.
Moonshiners brew illegal alcohol, usually a liquor from corn. In the United States, this practice led to some surprising outcomes -- including the deveopment of NASCAR. Tune in to learn more about moonshine and racing in this HowStuffWorks podcast.
Recycling has come a long way since its debut -- and so have landfills. In this twofer HowStuffWorks podcast, discover the realities of modern recycling and find out why the world's largest landfill might be more aptly described as an "oceanfill."
Redheads are supposedly fiery, passionate people, but is there any truth to these stereotypes? Find out what studies have to say about redheads -- and if they'll really go extinct soon -- in this HowStuffWorks podcast.
Urban explorers investigate abandoned structures such as hospitals, grocery stores, warehouses and underground systems. Tune into this HowStuffWorks podcast to learn more about the rules, legality and appeal of this fascinating hobby.
Body armor has used by bodyguards, celebrities and soldiers for thousands of years. Tune into this HowStuffWorks podcast to learn how the constant innovation in weaponry has led to a similar evolution in defense and armor.
Is the idea of possession a misunderstanding of physiological and psychological conditions, or has science failed to account for unknown, legitimate factors? Learn whether exorcism and psychology are mutually exclusive in this podcast from HowStuffWorks.
After the election in November, outgoing Presidents have an opportunity to pass last-minute (often unpopular and unpublicized) legislation as 'midnight regulations.' Learn more about midnight regulations in this HowStuffWorks podcast.
Habeas Corpus is a Latin term meaning "you have the body," and -- in theory -- guarantees an incarcerated person the right to have a court determine whether he or she is imprisoned lawfully. Listen to this podcast from HowStuffWorks to learn more.
Although you're much more likely to die in an auto accident, odds are you're more afraid of flying -- but why? Check out this HowStuffWorks podcast to find out.
Flirting is an ancient -- and, at times, unconscious -- form of communication used to indicate interest in and receptivity to another person. Learn about the science of flirting and find out how to flirt in this podcast from HowStuffWorks.
From transforming into a gem to being shot into space, modern technology has created a multitude of possible destinations for the bodies of the deceased. Go beyond the traditional funeral in this podcast from HowStuffWorks.
Although no one wakes up in the morning hoping for a gunfight, we all know life can be unpredictable. So check out this HowStuffWorks podcast and learn the best place to take a bullet if you get shot.
Statistically speaking, extended product warranties aren't generally worth the money, but there are some purchases that warrant extra insurance. Find out when it's smart to buy -- and when you should say "no thanks" -- in this HowStuffWorks podcast.
What if Congress passed a law mandating a two-day week work? The Friends of the Five Day Weekend want Congress to do just that -- sort of. Check out this podcast to find out if their proposal is feasible or just plain farfetched.
You've heard of guerrilla fighting tactics, but how much do you know about guerrilla gardening? Check out this HowStuffWorks podcast to learn more about this "revolutionary" gardening trend.
Obsessive-compulsive disorder is an anxiety disorder characterized by obsessive thoughts and compulsive actions. Check out this HowStuffWorks podcast to learn more about the effects of and treatments for OCD.
Thanksgiving is an unusual holiday in America -- there's no religious connotation, and the only traditions are a good meal and a sense of appreciation for the good things in life. Check out this HowStuffWorks podcast to learn more about Thanksgiving.
Albert Einstein is one of the world's most recognizable geniuses. But was his brain any different from that of an average person? Check out this HowStuffWorks podcast to learn more about Thomas Harvey, the man who set out to decipher Einstein's brain.
Corporate personhood is an ancient legal custom tracing back to Roman law, whereby a corporation is legally considered a person.
Eco-anxiety -- a chronic fear of environmental doom -- is a recent, specialized type of anxiety disorder gripping an estimated 40 million people in the United States. Check out this HowStuffWorks podcast to learn more about eco-anxiety.
For thousands of years, societies across the globe have used herbs as medicine. While this practice continues today, the FDA does not regulate these potent substances. Find out why the FDA can't regulate herbal supplements in this HowStuffWorks podcast.
As more and more time passes, the Freedom of Information Act provides increasingly disturbing stories of illegal CIA operations. Check out this HowStuffWorks podcast to learn more about MKULTRA and illegal CIA operations in the United States.
The 2008 US financial crisis has been blamed on the excessive use of mortgage-backed securities. But what exactly is a mortgage-backed security? Learn more about these securities and how they contributed to the crisis in this HowStuffWorks podcast.
Marriage is an ancient custom, and today's wedding practices come from age-old traditions. Check out this HowStuffWorks podcast to learn more about the history behind marriage traditions.
Studies have shown that prayer has a positive effect on individuals, but can your prayer heal someone else? Check out this HowStuffWorks podcast to find out how science weighs in on the power of intercessory prayer -- and if it should at all.
Prices in a free market are determined by the law of supply and demand, yet the US government has recently given billions of dollars to rescue large corporations. Check out this HowStuffWorks podcast to learn whether or not the US is still a free market.
Due to the region's elevation, the average traveler to Tibet often experiences altitude sickness -- a condition caused by a lack of oxygen in the blood. Check out this HowStuffWorks podcast to learn how Tibetans have adapted to life in high altitudes.
The economy imploded as US banks reaped the consequences of subprime mortgage trades. Controversially, Congress has provided emergency funding for the banks. Learn more about the agreement between Washington and Wall Street in this HowStuffWorks podcast.
If you're tired of paying utility bills or relying on fossil fuels, it might be time to consider living off the grid. Check out this HowStuffWorks podcast to learn more about the techniques and strategies used by people living off the grid.
Is Earth due for a mass extinction? Population ecologists think so. Check out this HowStuffWorks podcast to learn more mass extinctions.
Cannibalism is one of humanity's near-universal taboos, but it has been practiced in widely varying circumstances throughout history. Check out this HowStuffWorks podcast to learn the difference between the three types of cannibalism.
Entomophagy -- the practice of eating insects -- is common outside of Europe and North America. Despite cultural taboos, you've probably eaten insects without knowing it. Check out our HowStuffWorks podcast to learn more about entomophagy.
In China's Guangdong province, twelve volunteers have been trained to detect harmful pollution by using their sense of smell. Check out this HowStuffWorks podcast to learn more about
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China's pollution sniffers.
With the world's best weaponry, a shadowy legal status, and almost no oversight, Delta Force is the stuff of military legend. Check out this HowStuffWorks podcast to learn why Delta Force was created, and how this group works.
Graceland attracts millions of visitors every year. Check out this HowStuffWorks podcast to learn more about Elvis and Graceland, which Elvis bought when he was only 22 years old.
Everyone knows it's tough to
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quit smoking -- but did you know quitting can be contagious? Check out this HowStuffWorks podcast to learn more about smoking.
Everyone dreams of snagging a fresh start at life. Whether you've thought of changing your dull given name, or just disappearing entirely, this HowStuffWorks podcast will tell you what it takes to erase your identity.
The ultimatum game is an economics experiment that provides insight into the human psyche. Check out our HowStuffWorks podcast to learn about the rules to the ultimatum game.
Humanity has adapted to life on the surface. We like sunlight and fresh air -- but do we need it to survive? Check out this HowStuffWorks podcast to learn more about living underground.
Sleep is one of those funny things about being a human being -- you just have to do it. Have you ever wondered why? Check out our HowStuffWorks article to learn more about the importance of sleep.
The function of antiperspirant and deodorant is to prevent sweat or to mask the scent of body odor. Learn about the function of antiperspirant and deodorant in this HowStuffWorks podcast.
But there's no consensus among professionals about which method of death is the least desirable. A person's fears may factor into his own personal worst way to die. Check out our HowStuffWorks article to learn more about the worst way to die.
With the benefit of wireless technologies like cell phones and text messaging, large groups of people are able to coordinate their actions with amazing precision. Check out this HowStuffWorks podcast about smart mobs and civil disobedience.
Some researchers believe that weddings between a human and a robot could be possible by the year 2050. Take a look at our HowStuffWorks article to learn more about robot rights.
High blood pressure -- or hypertension -- is elevated pressure of the blood in the arteries. Hypertension results from two major factors. Check out our HowStuffWorks article to learn more about the causes of and treatment for hypertension.
Are humans born with survival instincts? Check out our HowStuffWorks article to learn more about human instincts and survival.
Ten terribly bungled crimes throughout history are explored, such as drug deals gone wrong. Find out which ones are at the top of the list for Josh and Chuck in this HowStuffWorks podcast.
Millions of people across the world enjoy scuba diving -- and, unbelievably enough, a few pets have also taken up this hobby. Check out our HowStuffWorks article to learn more about how a cat's devotion to her best friend got her underwater.
In May of 2007, the US military found drawings believed to be part of an Al-Qaida torture manual. However, the seminal manuals on torture are believed to be the work of the CIA. Check out our HowStuffWorks article to learn more about torture manuals.
The 1996 Chuck Palahniuk novel, "Fight Club," has been blamed -- and lauded -- by various groups for inspiring several real-life fight clubs. Take a look at our HowStuffWorks article to learn more about real-life fight clubs.
In 1995, World Bank vice president Ismail Serageldin declared that "the wars of the next century will be about water." Check out our HowStuffWorks article to learn what happens once we run out of water.
Fair chase is the idea that a balance should be struck between the hunter's ability to kill prey and the prey's ability escape. Take a look at our HowStuffWorks article to learn more about knife hunting, and whether or not it's the fairest way to hunt.
Blushing from embarrassment is governed by the sympathetic nervous system, which governs involuntary processes. Although we know how people blush, we still don't understand why. Check out the theories of blushing in our HowStuffWorks article.
Carbon capture is the process of trapping carbon emissions and storing them away from the atmosphere to prevent global warming. Check out our carbon capture article at HowStuffWorks.com to learn more about the possibility of reducing carbon emissions.
In 2005, The Sun reported that dogs were being used as live bait in the Indian Ocean. Is it possible that dogs are a delicacy to sharks? Take a look at our HowStuffWorks article to learn more about the diet of sharks.
Although it can be intimidating, a shark is not invulnerable. Punching its nose, gouging its eyes, or grabbing its gills can stun the shark and give victims a chance to escape. Check out our HowStuffWorks article to learn more about shark attacks.
The unsolved murder spree of Jack the Ripper has captivated generations of amateur investigators, each with their own theory of the killer's identity. Learn more about one particularly thought-provoking suspect in this HowStuffWorks podcast.
Personal rapid transport combines the best traits of subways and taxis, and costs less to build than light rail. Could this be the future of transportation? Check out this HowStuffWorks podcast and learn more about personal rapid transport.
Cities can become abandoned for a number of reasons, from economic meltdowns to nuclear catastrophes. Check out this HowStuffWorks podcast and learn more about modern abandoned cities.
Murphy's law originates in 1949, and states 'anything that can go wrong, will.' Check out this HowStuffWorks to learn more about how the Air Force discovered Murphy's law.
Could high-end digital auto systems such as blind-spot detection and collision prevention overcome the errors of human drivers? Check out this HowStuffWorks podcast to learn more about the death-proof cars of the future.
Oil shale is a term for oil trapped in rock, rather than existing in liquid form. Check out this HowStuffWorks podcast to learn more about the nature of oil shale.
Swear words are usually considered workplace taboos -- yet the debate continues over whether these words are inappropriate, or examples of free speech. Learn more about using swear words at work in this HowStuffWorks podcast.
The United Nations has found that 22% of the world's population does not have access to clean drinking water. Could we fix the water shortage by manufacturing water? Check out this HowStuffWorks podcast to learn more about manufacturing water.
The most expensive toilet in the world is made of solid gold and can be found in Hong Kong. Learn more about the world's most expensive toilet in this HowStuffWorks podcast.
Salt water fuel could be the next viable alternative to foreign oil. Learn about the ongoing research behind the concept of salt water fuel in this HowStuffWorks podcast.
In recorded history, only two people have entered the eye of a tornado and returned to tell the tale. Learn more about the inside of tornadoes in this HowStuffWorks podcast.
Yawning is contagious, but why? Check out the leading theories on contagious yawning and empathy in this HowStuffWorks podcast.
During times of emergency, people have been known to preform feats of great strength. Learn more about going from the dull stare of the dairy cow to the eye of the tiger in seconds flat.
Could the routine use of antibacterial soap increase the presence of drug-resistant bacteria in your home? Learn more about the disadvantages of anti-bacterial soap in this HowStuffWorks podcast.
Does gum really stay in your stomach for Seven Years? Josh and Chuck take on the parental myth of gum swollowing.
Check out the story of Hachiko, a loyal Akita who waited for over ten years for his master to return. Learn more about Hachiko and loyalty in this HowStuffWorks podcast.
How does isolation spur evolution? Check out this HowStuffWorks podcast to learn more about speciation and evolution.
Why does toothpaste make orange juice taste bad? Chuck recounts his first-hand experience, and how it works.
The trolley problem is an ethical dilemma that proposes a difficult decision about choosing whether a group of strangers lives or dies. Learn more about ethics and the nature of sacrifice in this HowStuffWorks podcast.
Sympathy pregnancy is the condition where a man feels pregnant while his wife actually is. Learn more about the symptoms for sympathy pregnancy in this HowStuffWorks podcast.
After the close of World War II, Nazi war criminals fled Europe and attempted to hide under assumed identities. Some may still be at large. Learn more about Nazi war criminals in this HowStuffWorks podcast.
Is there such a thing as a truly unselfish act? Check out this HowStuffWorks podcast and learn more about the nature of altruism.
In U.S. politics, a lame duck is a president who will not be re-elected because he or she has been passed over for election, or already served the maximum two terms. Learn more about the origin of lame duck presidents in this HowStuffWorks podcast.
Could switch grass become the car fuel of the future? Learn more about alternative fuel in this HowStuffWorks podcast.
