Macadamia nuts aren't nuts! They're seeds! And they are delicious. And good for you in the right amount. Learn all about them today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

After millennia of development, the Maya culture suddenly collapsed at its peak. Why is one of the biggest mysteries of history. One theory says catastrophic climate change was the cause. And it may have happened to other cultures too. 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. Get blown away by fractals in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Conversion therapy is a misguided attempt by religious zealots to convert people from gay to straight. News flash - it doesn't work. Learn all about this abhorrent practice today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In 1969, the Army Corps of Engineers turned off one of the main waterfalls at Niagara Falls to see what could be done to preserve it. They found two corpses, one carcass and lots of pennies. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Some of the carbon dioxide in your body is radioactive! Don’t worry, it won’t harm you (not sure why we used an exclamation point there). Instead, it might someday be detected by future archaeologists to determine how long ago you walked the Earth. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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

Ever since Cabbage Patch Kids came along in 1983, there’s been an annual holiday frenzy around one particular toy – the must-have Christmas toy of the year. But what makes a toy a must-have toy? Josh and Chuck investigate (and kick off the holidays). Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Time was that you’d bury a deceased relative in your yard; now it’s just weird. But it’s still legal – and if you want to do it, here’s how! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

About 5,300 years ago a Copper Age shepherd was murdered. He just happened to die in a place where his body was so well preserved that gave researchers an actual shot at determining the course of his final day on Earth. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A Roman senator once said, "Mankind can live without gold, but not without salt." Right he was. The human body needs salt so much we have developed a taste for it specifically. But too much salt can be toxic. Learn about salt's role in human history and how we get it from the Earth in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Getting the rain and melted snow from upstate NY into the taps of every NYC resident and business is one of the great feats of engineering. Does it taste great and make perfect bagels and pizza crust? Sources say yes! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Back in 1982, Key West seceded from the United States. Don’t believe us? It’s true! Just listen to the episode, will you? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Augmented reality adds a digital layer over the real world and soon it will revolutionize how we live. Ultra-tailored information will be everywhere we look, creating a richer, more personalized experience in everything from surgery to walking down the street. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Hallucinogenic drugs are currently illegal, but they were once commonly used in psychological treatment. In this classic episode, Josh and Chuck discuss the rise and fall of psychedelics in treating mood disorders -- and why they're starting to gain favor again. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

What is Cockney Rhyming Slang? It's complicated and its origins are unclear. Learn everything we know about it today.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Sure, you could train for months to finish a marathon, but why not make things interesting? Ironman triathlons add a 2.4-mile swim and a 112-mile bike race before the marathon leg. It’s as grueling as it sounds.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Paternity testing. It wasn't science for many years, yet they still tried to do it. Learn all about it in 12 minutes. 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 in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Josh and Chuck chose a truly unsettling story by one of the greatest science fiction authors of all time – Philip K Dick. Join the boys as they read “The Hanging Stranger,” complete with scary sound effects by the Extraordinary Jeri! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Join us today as we read three short horror selections from Ambrose Bierce.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

We aren’t exactly sure who invented trick-or-treating – kids who realized they could extort adults for candy, or adults who bought off kids in exchange for laying off pranks? The bigger question is: Will trick-or-treating survive the 21st century? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Ever since the Egyptians, humans have been evolving toward haunted house attractions. The level of sophistication in the scares and gore effects continues to rise over time, but the purpose remains the same: to scare the pants off you. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A fascinating thing about Americans is that we can disagree on anything. Such is the case with historic districts – areas of historic importance protected by local laws. Seems innocuous, but are they also to blame for the affordable housing crisis? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In 1994 the body of a woman who died in a California ER somehow became toxic and sickened 24 people. To this day, no one is sure what happened. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Subpoenas are all the rage. But what do they even mean if someone can just ignore it? Learn this and a lot more in today's episode.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the late 1980s, the United States experienced a "Satanic Panic," leading parents to fear for the safety of their children. But were there any real examples of Satanic ritual abuse? Find out this and more in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A rash of UFO sightings kicks off a new spike in America’s UFO fever and new headaches for the Air Force, which continues to reluctantly investigate. After becoming a laughingstock for its limp explanations, the Air Force looks for an exit from the UFO biz. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Ambrose Bierce was a journalist and writer of short stories. He also disappeared rather mysteriously. Listen in and learn of the various theories on what happened to him.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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. Sit in with Josh and Chuck and learn about how these grim devices are made, how they're tested and the tales they've told, in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Who wants fresh honey? We do! Learn all about the ancient art of beekeeping today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The Devil's Den is the sight of one of the bloodiest battles of the Civil War. Is it haunted? Nope. But still creepy.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the 60s, psychology expanded from exploring inside the mind to exploring the inside of buildings. Environmental psychology looks at how our spaces affect us – from how a busy mall can create a panic attack to how looking at nature can speed recovery from surgery. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

PEZ began in Vienna as a mint meant to help people quit smoking. But once American kids got ahold of it, the candy took off and a symbol of childhood - and healthy secondary market among collectors - was born. Explore Pez history and culture with Josh and Chuck in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Freedom Schools were set up in Mississippi in the heart of the Civil Rights Movement, with the aim of giving young black school children agency and a future. They remain one of the more inspiring and progressive programs in American History, yet so few know about them. We're hoping to change that.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

How did these two wonderful strangers meet up and become best friends? The answers lie within today's short stuff.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If you grew up in the 1980s, then you know who the Guardian Angels are. If you don't then you're in for quite a story. Listen in!  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 in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Josh and Chuck dive into the world of paraphilias so you can get the skinny in 45 minutes or less.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

What happened to the Lost Colonists who disappeared from Roanoke Island in the 1580s remains a mystery to this day. But it’s possible a carved stone a man vacationing in North Carolina found in the 1930s may have solved it – if the stone isn’t a hoax. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Sand, we’re beginning to realize, is a non-renewable resource - and we are consuming it at a voracious pace. We use it in every construction project around the world and to create new land. And we’re wrecking the ecosystems we mine sand from. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Do you know that hulking refrigerator in your kitchen emits CO2 thanks to the electricity it uses each year? It's a comparatively small amount, in truth, but enough that some people have foresworn their fridge and adopted a life without one. See how they do it in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Wait! This is actually a good episode! It turns out that America’s 48,000 miles of superhighways – possibly the largest civil works project in the history of humanity – may have also ruined what made America a cool place. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Scurvy seems like a terrible way to go: Your gums swell so you can’t eat, your teeth fall out and your brain and/or heart hemorrhages. Fortunately, all you need is an orange to cure you. Or some – blech – broccoli.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If you live in the Northeastern U.S. then you may know someone who has had Lyme disease. But it's spreading all over the country and parts of the world. Learn all about this tick-borne disease today.  Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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

Special effects have been around since the first movies. In fact, the techniques the earliest filmmakers created are still around today, we just use computers to do them faster and cheaper. Put on your beret and get ready for SYSK film class. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.