Possibly the most horrifically-named disease anyone could contract, flesh-eating bacteria can lead quickly lead to amputations and death. Learn about how this disease works and how to prevent it in this episode with Chuck and Josh. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

When you vote in an American presidential election, you're not voting for your candidate - you're voting for a group of people you hope will in turn vote for your candidate. Listen in to learn more about the strange process for electing the president. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Did you know there are as many as 500,000 abandoned mines in the US, but the federal government knows where only 30,000 of them are? Learn about these places go from money pit to death trap when mine companies simply walk away. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If you're an American adult, there's a 1 in 4 chance you have a criminal record. While it's less likely you've committed any serious crime, there are still repercussions to having a rap sheet as more employers use them to decide between candidates. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Putting lasers in space to blast Soviet missiles out of the air was a very real part of Ronald Reagan's defense policy. While his "Star Wars" program was derided at home and abroad, historians are beginning to wonder if it didn't help win the Cold War after all. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A shark attack is a terrifying experience for the victim -- but are sharks really man-eating monsters with a taste for human flesh? Join Josh and Chuck as they ask why sharks attack, how attacks occur and which sharks are most likely to attack someone. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

It's the holiest month of the Muslim calendar, and for good reason. It was during the month of Ramadan that Mohammed began to issue the Koran. Learn about the customs and traditions behind observing Ramadan in this episode of Stuff You Should Know. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

With the end of the shuttle program and an International Space Station still in need of supplies, the aerospace industry is working the kinks of out of a century-old idea to build a service elevator from Earth to outer space. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

You know and love them as a fluffy chocolate nougat and maybe as a book and a movie, but musketeers were quite real and quite deadly. Visit with Josh and Chuck as they examine the elite special forces of 17th-century France. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

How does time travel work? Could it ever cross the line from science fiction into science fact? Join Josh and Chuck -- along with a live audience at the 2012 Comic-Con -- as they explore the ins and outs of time travel. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

White-collar crime often involves fraud and other nonviolent acts. For most people, the term "white-collar crime" conjures up images of CEOs conniving their way to fortune. But what is it, really? Listen in as Josh and Chuck break down the facts. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

You've seen lightning before, and maybe you're even afraid of it. You should be. The air is ripped apart and a sudden electrical discharge burning six times brighter than the sun connects with Earth. Learn all about it with Josh and Chuck. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The spectacular eruptions of steam and water we call geysers are only the tip of the proverbial iceberg, the result of thousands of years of specific natural conditions and physical processes. Learn the Stuff You Should Know about geysers in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Having started as an egalitarian answer to 19th-century newspapers, tabloids came to peddle shock and sleaze. They've cleaned up a bit, but they remain the world's guilty pleasure. Learn more about the fascinating history of tabloids with Chuck and Josh. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

An anomaly of geography, the shores of Dead Sea form the lowest dry spot on Earth. It's been visited by millions, including King Herod and Cleopatra, all seeking the health benefits of this saline lake. Learn about this unusual spot with Josh and Chuck. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Depending on who's in office, they're either a presidential tradition or the acts of a despot. Executive orders are not spelled out in the Constitution, yet every president has issued them. Learn about these controversial edicts with Josh and Chuck. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Every once in a while Chuck and Josh do things by the numbers and here's a good example. Turns out a surprising amount of ubiquitous items in our everyday lives were stumbled upon by accident. This episode explores a few of the more noteworthy ones. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

" Icebergs: floating chunks of ice. True, but whoa there. Scientists are learning that there's a lot more to icebergs. Appropriately enough, we've only come to understand the tip of the iceberg and recent research shows there's plenty more to uncover. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Along with the hole in the ozone layer, acid rain was one of the first international environmental threats. It's fallen to the wayside in the face of climate change, but we have yet to lick it. Join Chuck and Josh as they revive the 80s drumbeat. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The concept of fighting unhealthy behavior like overeating by taxing unhealthy food has been around since 1994. But as the debate over a fat tax rages on in the U.S., Europe has begun to institute them and there's talk of taxing overweight people as well. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the 1980s, IBM mathematician Benoit Mandelbrot gazed for the first time upon his famous fractal. What resulted was a revolution in math and geometry and our understanding of the infinite, not to mention how we see Star Trek II. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Think you have moss figured out? You probably don't. Join Josh and Chuck as they explore some of the surprising aspects of these most ancient and important plants on the planet. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If you've seen the movie Magnolia, you've seen what it looks like to rain frogs. While there are reports of frogs, fish and even squid raining down that are questionable, science has figured out how it can - and does - rain frogs sometimes. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The disturbing trend of school shootings around the world has dragged violence in video games into the hot seat. But are violent video games actually more capable of producing real violence in gamers or is it just the latest victim of societal hysteria? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

" 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?" Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.