Stuff You Should Know

Chuck and Josh dive into the secret world of the National Security Agency, from the origins of the snooping outfit, to the recent revelations from whistleblower Edward Snowden. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If you think secretly coded messages sent via short wave radio is Cold War relic, think again. Chuck and Josh are here to dispel that myth, along with many others relating to numbers stations, including why they might still be operational. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Do you love Play-Doh? Chuck and Josh certainly love to talk about it, from its interesting history as a wall cleaner, to its more scientific chemical properties. It's everything you ever wanted to know about the pliable children's toy. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

There is a condition that can cause people to feel bugs crawling beneath their skin so acutely that they will use tweezers to pluck them from their eyeballs. It's a terrible disorder made worse by medicine's insistence it is all in sufferers' heads. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Josh and Chuck explore the old notion that there's a dark side of the moon. There is, but it turns out it's not always the same side. And yes, there's a side we never see, but it's not always dark. Make sense? It will in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

You can find probiotics - bacteria thought to have healthful benefits for humans - in everything from pills to yogurt. But does any of it work? Listen as Josh and Chuck get to the bottom of the science (and need for it) of probiotics and health. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The concept of trickle-down economics is tied to Ronald Reagan, but the idea's been around and in use since the 20s. It's simple: Give more money to the wealthy and they can use it to rev up an economy. But is the whole thing just a scam? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the U.S. alone, more than 6 million people are affected by infertility and science has taken up the mantle of helping them to conceive. Learn about the clever, though intuitive, methods of assisting infertile couples to have a child. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Sushi grew out of a way to ferment fish a couple thousand years ago and in the late 20th century began to take the world by storm. What began as traditional, rigid food has come to evolve with new delicious innovations being added to the original canon. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

There's nothing more boring than watching grass grow, which is why Josh and Chuck aren't asking you to do that. Instead, you can learn about all sorts of neat things about grass - like how America became obsessed with perfect lawns - in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The idea that the larger the brain, the higher the intelligence is an old one, but it's pretty much utterly false. Modern investigation into how the brain works suggests there's a lot more to take into account when comparing brain biology to intellect. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Since more than 1 billion people have played it, you're probably familiar with the board game Monopoly, but we bet you don't know its secret origins as a left-wing socialist teaching tool. Learn about the history, rules and cultural impact of Monopoly. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The most famous museum in the world, France's Louvre, has been the seat of high art and culture for several centuries. Its history goes back farther than that, beginning in the 1200s as a fort and prison. Tour the Louvre and its collections in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

You may be surprised to learn those ubiquitous ratings, from G to NC-17, put on movies in America are actually handed down by anonymous employees of a secretive organization that serves as a lobbying firm for Hollywood's six biggest studios. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

It's surprising that a few 12-feet-deep pools of asphalt have proven to be one of the most significant troves of Pleistocene fossils, but the La Brea Tar Pits, located in the heart of Los Angeles, are giving science a clear picture of a puzzling time. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Maybe you hail from a soccer crazed country - or from the U.S. Either way, there's lots to discuss about "the beautiful game", from its prehistory, rules and strategy to, of course, the World Cup. Join Josh and Chuck as they wade into football, aka soccer. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Your employer may be secretly reading your emails, watching what websites you visit and tracking your whereabouts through your phone. And because of how the courts have ruled, there's nothing you can do about it. Learn all about employer spying here. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Since sugar spread from Polynesia a few thousand years ago, the world has been crazy for it. Insanely high prices, wars and even slavery couldn't undo world's need for a sugar fix. Today that fix is responsible for the obesity epidemic facing the West. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

For centuries, doctors have prescribed drugs they knew weren't real - but that still somehow worked. It wasn't until the 1980s that the placebo effect, the phenomenon where an inert substance can have a genuine impact on a patient's recovery, was studied. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the 1950s and 60s, the United States and the Soviet Union battled it out to see who would dominate the race for outer space. The Soviets got out to an early lead, but the U.S. would ultimately win. Learn all about the Space Race in this week's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Venice, Italy has a problem. It's sinking, and the water around it is rising. Thankfully, some engineers are working hard on the MOSE project - huge gates that keep high tide from happening. Learn all about Venice in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If you thought Indiana Jones was the model archaeologist, you're pretty much right. Archaeologists are one part scientist, one part scholar, and one part adventurer. In this episode, learn all you need to know this fascinating field. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

When your kid boils over in the grocery store, it can be tough to stay calm and ignore it, but that's precisely what experts prescribe parents do to deal with temper tantrums. Learn about the anatomy of a tantrum and the best way to deal in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Each year, as snow builds on peaks across the world's mountain ranges, the potential for avalanches builds. Learn about the science of how these natural disasters develop and are triggered - and how to survive one if you ever find yourself trapped. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Your body right now is home to a liter of mucous, countless fat-loving mites, acid that can dissolve metal and plenty of other gross and interesting stuff. Learn all about your body and its functions here. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

You may have heard of the Paleo Diet, also known as the Caveman Diet, but do you know the science it's based on? And did you know that the saturated fat it and other diets avoid may be healthier than you were taught in school? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If it was possible to take a full scan of all of the DNA of every cell in and on your body the results would be startling: Only 1 percent would be human. The other 99 percent comprises all of the bacteria, fungi, viruses and other microbes you literally cannot live without. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Suffering from bipolar disorder means a lot more than your garden variety mood swings. Bouts of mania and depression are just the headlines. There are also theories that there's a link between bipolarism and creativity. Learn all about this disruptive, yet manageable disorder. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Gypsies were called that because they were long ago mistaken as Egyptians. Even their more appropriate name, Roma, is a misnomer since they're not from Romania. Find out about the mysterious history of this nomadic and genuinely misunderstood ethnic group. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

For millennia people used marijuana for fun and medicine. Not until the 20th century that was it vilified, unfairly say many. Weed has done lots of good things, from alleviating cancer symptoms to unlocking secrets of the brain. Learn all about pot here. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Being a card-carrying member of the ACLU is tantamount to being a super liberal to some, but the ACLU ultimately displays no allegiance to any political philosophy, only to whomever's Constitutional rights are being infringed upon, from Nazis to the NAACP. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Occasional bad breath is one thing, halitosis is another. Or is it? From its odd origins as a marketing ploy to modern weight loss diets that can induce this embarrassing condition, you can learn all about bad breath here. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Sure today Mars would kill you with its thin, toxic atmosphere and cold desert temperature swings of 100 degrees, but early on it and Earth were practically twins. Find out how the two planets diverged and if there might be life on the Red Planet. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

What's old is new again as far as burlesque is concerned. Come explore what was an old-timey outlet for empowering women that later gave rise to the striptease once men started running the show. Now, women have reclaimed the art and it is benefiting. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Dissociative Identity Disorder was known as multiple personality disorder until a case of mass hysteria brought on by the movie-mad public and unscrupulous psychiatrists led to a stigma over the term. Now psychiatry has gotten serious about the condition. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

While evolution gets all the spotlight for moving species into better versions of themselves, but really it's natural selection that is the engine driving the process. Learn all about this elegant scientific observation that forms the basis of life. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Charles Darwin wasn't the first or only scientist to grasp the theory of evolution through natural selection, but he became its father and icon. Learn about the man who reluctantly but bravely became the source of the divide between religion and science. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

They are among the more reviled concepts of modern life, and yet they are as inevitable as death. Join Josh and Chuck as they look into the history and the basis of income taxes in the U.S. in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

With 3D printing you can print not just pictures and words, but actual objects from files. And as costs come down, the list of things you can print expand: from food, to organs, to guns. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Landslides are a form of mass movement of the Earth, and with the amount of death and destruction they wreak on the people and towns they cover, their toll can be massive. Learn all about landslides in this episode with Josh and Chuck. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Those movies where someone gets hit on the head and can't remember who they are anymore? They're actually not too far off from the reality of amnesia. Learn everything about this bizarre and life-robbing condition with Josh and Chuck. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

It is literally all around you (and even inside you) - electricity makes up the basis of modern life. But what exactly is electricity and how does it work? Josh and Chuck chase away the darkness and explain electricity in their usual electrifying way. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Most Europeans first encountered tattoos after sailors visiting the South Pacific returned covered in them. From then on, with a few notable exceptions, tattoos have been associated with fringe dwellers in the West. Learn all about tats in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Black boxes are designed to be the only survivor of plane crashes so they can live to tell the tale of what went wrong to prevent future accidents. Learn about how these grim devices are made, how they're tested and the tales they've told. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Skateboarding started out as something bored surfers did when the waves weren't breaking, but after a few improvements to the design, it took off like a rocket to become its own cultural phenomenon. Come gleam the cube with Josh and Chuck. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

No longer weird, possibly still desperate and approaching normal, online dating's been around almost as long as the Internet itself. So what exactly is the best way to find love online if one were so inclined to do so? Josh and Chuck hook you up. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The idea of pious monks imbued with unbridled power and with a penchant for dealing torture and death is a scary one indeed, and one both Spain and the Catholic Church have tried to reconcile since the Spanish Inquisition ended in the 19th century. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

On May 4, 1970, four days of anti-war protests at Kent State University in Ohio culminated in the unthinkable when Ohio guardsmen opened fire on protesters, killing four students. How could this tragedy take place? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Their soft white bodies look creepy and, to be sure, they are, but termites are pretty amazing bugs. They build ventilation systems into their mounds, poop on their enemies and grow mushrooms. Learn all the neat stuff you didn't know about termites here. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Amputation is one of the oldest surgeries and an even older punishment for crime, but it wasn't until the American Civil War and its 50,000 amputations that the procedure began to hit its stride. Learn about amputation and who it attracts in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.