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.
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Why do people blush?

If you've ever wanted to know about champagne, satanism, the Stonewall Uprising, chaos theory, LSD, El Nino, true crime and Rosa Parks, then look no further. Josh and Chuck have you covered.

Thanks to the amazing properties of magnets, clever engineers have figured out how to make entire trains levitate above their tracks, letting them move frictionlessly and allowing them to reach incredible speeds. Learn about how maglev trains work and what's taking so long for us to get aboard in this classic episode.
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SYSK Selects: How Maglev Trains Work

Josh and Chuck dive into history today to tell the story of the Buffalo Soldiers. 
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Who were the Buffalo Soldiers?

Listen in as we detail, in short, the legendary shootout at the O.K. Corral.
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Short Stuff: The O.K. Corral

Regular animal stories are wonderful enough, but when animals lead amazing lives the stories become almost unbearably wonderful. You’ve been warned!
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Amazing Animal Stories!

It evolved over centuries to become the gold standard for conducting scientific inquiry. Yet many people - including some scientists - don't fully understand it. Learn about the basis of how we explore our world in this classic episode.
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SYSK Selects: How the Scientific Method Works

What is barefoot running? I think you know. But we'll detail all of the ins and outs. Listen and learn!
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Barefoot Running: The Best Podcast Episode in History

In 1983, what may be the worst diving catastrophe in the history of deep sea oil exploration took place when a pressurized chamber was opened, instantly killing four divers inside.
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Short Stuff: Byford Dolphin Incident

1993 was known as the peak of a disturbing trend in America: post office shootings, carried out by postal workers. A stunned country looked for answers and turned up a toxic workplace that seemed to be driving some workers past their breaking point.
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Why Postal Employees Go Postal

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 was studied. Learn all about how an inert substance can have a genuine impact on a patient's recovery, in this classic episode.
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SYSK Selects: How the Placebo Effect Works

In reality, the Tulsa "race riots" of 1921 was more like a massacre. Yet it was almost lost to history until 1997, and still not widely known outside of Oklahoma until HBO's The Watchmen put it on the cultural map. Learn all about this dark chapter in American history today. 
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The Tulsa 'Race Riots'

The Mona Lisa is a captivating work of art. But why? We'll try and figure it out in today's short stuff.
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Short Stuff: The Mona Lisa

Transdermal implants are just one in a number of procedures under the banner of extreme body modification. We don't like to yuk yums, so we'll offer a fairly straightforward look at this niche art form. 
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Transdermal Implants: Body Art or Nightmare Fuel?

Jellyfish are among the most adaptable, competitive organisms on the planet. They can grow back into their juvenile stage when resources are scarce, reproduce in massive groups and kill an adult human, among lots of other neat stuff. Learn all about em in this classic episode!
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SYSK Selects: Jellyfish - Even Cooler Than Octopi?

In the absence of an official explanation of why flight MH 370 disappeared in 2014, conjecture and conspiracy theories have filled the vacuum.
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The Disappearance of Flight MH370, Part II

Learn 12 minutes worth of stuff about corduroy today!
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Short Stuff: Corduroy

In 2014, a Boeing 777 airliner disappeared. Despite two full years of searching an area of ocean covering more than 120,000 square kilometers, it has never been found. It is the only unexplained missing vessel in modern aviation history.
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The Disappearance of Flight MH370, Part I

With savvy and health-conscious people taking control of their wellbeing through apps and sites, technology is meeting the desire for individuals' responsibility for their health. But is the day coming soon when doctors will be obsolete, replaced by computers that read our health-related data to treat us? We explore these questions and more in this classic episode.
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SYSK Selects: Will Computers Replace Doctors?

Burglars have come up with a whole range of ways to get into a safe. There’s lock manipulation – methodically testing the dial to coax the combination from it – and if that fails you can always blow it open with nitroglycerin. Both count as safecracking.
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How Safecracking Works

It’s not just you – time really does seem to pass faster for people as we age. But exactly why remains a mystery, though some of the theories for why life passes by so quickly are make a lot of sense.
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Short Stuff: Why Does Time Speed Up As You Age?

Are broken arrows are a problem? After all, they are incidents and accidents involving nuclear warheads. Like, sometimes they go missing. But it hasn't happened much since the 50s and 60s. OR HAS IT? Learn all about them today. 
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Are broken arrows a problem?

Wine fraud may be a case of rich con artists tricking wealthy people into parting with money, but it's still a crime. Learn all about this weird, widespread practice in this classic episode.
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SYSK Selects: How Wine Fraud Works

Andre the Giant was a giant both figuratively and literally. Sure he was a wrestler, but more than that he was a human being who left a great legacy behind. Even if you're not a wrestling fan, you can appreciate his story. Join us for this very special live edition of the story of Andre the Giant. 
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SYSK Live: Andre the Giant

If a con man manages to make needy Christmas wishes come true is he still a con man? (Also, Merry Christmas!)
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Short Stuff: The Santa Claus Association

It's an annual treat, folks. Our holiday special is back and better than ever, and as always, brought to you ad-free. It's the least we can do. 
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The SYSK Holiday Spectacular

Long ago, in a galaxy not so far away, George Lucas allowed the Star Wars Holiday Special to be made. What happened on the night of November 17, 1978 can never be fully explained, but we make our best effort in a very special edition of SYSK. May the force be with us all.
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SYSK Selects: The Star Wars Holiday Special of 1978

There are extreme sports and then there is cave diving, the most extreme activity a person can engage in without leaving Earth. Cave divers stay underwater swimming miles into – that’s right – caves, where no human has ever been before. It’s pretty cool.
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Cave Diving: Totally Nuts

Learn everything we know about obituaries in 12 minutes!
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Short Stuff: Obituaries

We love us some MC Escher. Turns out his story is pretty fascinating too. Tune in today. 
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MC Escher and His Trippy Art

Even if you entirely eschew the concept of money, we'll bet you'd be hard pressed not to trade in some form of currency. Learn how everything from cows to cacao beans to tiny shells from Maldives have served as currency at some time or another.
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SYSK Selects: How Currency Works

Anorexia and bulimia - those twin eating disorders that seem so common and maybe even just a phase for a teenage girl – are actually the deadliest mental illnesses in America. Cultivating an eating disorder can create issues that can last a lifetime.
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How Anorexia and Bulimia Work

What's the difference between whisky and bourbon? We'll tell you if you care to listen.
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Short Stuff: Whisky or Bourbon?

If there's one thing we've learned about Chuck over the years it's that he loves his gin. And he loves it even more now that understands it. Pour yourself a martini and cozy up to the gin-cast. 
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Everything You Ever Wanted to Know About Gin

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 in this classic episode.
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SYSK Selects: How Amnesia Works

Chuck thought a gap year was post college. Turns out, it's a post high school year off from academics, where you travel the world, help others, and find yourself. Should you do it? We say "yes!" If you can afford it that is. 
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What's a gap year anyway?

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.
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Short Stuff: Macadamia Nuts

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.
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Did Climate Cause the Collapse of the Maya?

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.
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SYSK Selects: Fractals - Whoa

Mister Rogers’ Neighborhood was not a simple show. And Fred Rogers was not a simple man. He was radical. Spiritual. Revolutionary. Maybe even subversive. Bestselling author and cultural critic Carvell Wallace hosts this 10-part series about the life, thinking and work of Fred Rogers, and asks what the cardigan wearing host of a decades-old children's show can tell us about how to get by in today's chaotic world. Produced in partnership with Transmitter Media. Listen to Finding Fred everywhere podcasts are found: https://megaphone.link/findingfred
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Introducing: Finding Fred

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.
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How Conversion Therapy Doesn't Work

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.
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How Carbon-14 Dating Works

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.
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SYSK Selects: Have all the good ideas already been discovered?

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).
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What Makes a Must-Have Christmas Toy?

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!
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Short Stuff: Backyard Burials

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.
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The Murder Mystery of Ötzi the Iceman

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.
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SYSK Selects: How Salt Works

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!
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NYC Water: An Engineering Marvel

Back in 1982, Key West seceded from the United States. Don’t believe us? It’s true! Just listen to the episode, will you?
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Short Stuff: The Conch Republic

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.
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Augmented Reality: Coming Soon?

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.
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SYSK Selects: Can you Treat Mental Illness with Psychedelics?

What is Cockney Rhyming Slang? It's complicated and its origins are unclear. Learn everything we know about it today. 
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Cockney Rhyming Slang: Beautiful Gibberish

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. 
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How Ironman Triathlons Work

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.
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SYSK Selects: Halitosis - Worst Smell Ever?

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!
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SYSK’s Scare Your Socks Off Halloween Spooktacular 2019

Join us today as we read three short horror selections from Ambrose Bierce. 
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Short Stuff: Our Shortie Halloween Spooktacular

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?
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Where Did Trick-Or-Treating Come From?

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.
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SYSK Selects: How Haunted House Attractions Work

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?
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How Historic Districts Work

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.
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Short Stuff: The Toxic Death of Gloria Ramirez

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. 
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What's the deal with subpoenas?

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.
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SYSK Selects: The 'Satanic Panic' of the 1980s

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.
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How Project Blue Book Worked, Pt II

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. 
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Short Stuff: The Disappearance of Ambrose Bierce


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How Project Blue Book Worked, Pt I

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.
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SYSK Selects: How Black Boxes Work

Who wants fresh honey? We do! Learn all about the ancient art of beekeeping today.
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The Ins and Outs of Beekeeping

The Devil's Den is the sight of one of the bloodiest battles of the Civil War. Is it haunted? Nope. But still creepy. 
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Short Stuff: The Devil's Den

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.
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How Environmental Psychology Works

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.
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SYSK Selects: How Pez Works

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. 
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What were the Freedom Schools?

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! 
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Guardian Angels: Behind the Red Beret

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.
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SYSK Selects: What Happened at Kent State?

Josh and Chuck dive into the world of paraphilias so you can get the skinny in 45 minutes or less. 
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What are paraphilias?

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.
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Short Stuff: Dare Stones

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.
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We Are Running Out of Sand and That Actually Matters

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.
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SYSK Selects: Could You Live Without a Refrigerator?

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.
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How the US Interstate System Works

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. 
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The Skinny on Lyme Disease

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.
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SYSK Selects: How Wills Work

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.
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Special Effects: A Short History

Oh, the papasan. What a chair! But where did it come from? And what does the name mean? The answers lie within.
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Short Stuff: Papasan Chairs

Every year Congress decides how the federal government will spend money. Simple enough, but in practice politics tend to mess it up. Sometimes it gets so messy the budget doesn’t get passed and parts of the government shut down. Then the hurting begins.
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How Government Shutdowns Work

Although most people who've used Ouija boards don't think they're communicating with the beyond, there is something mysterious about how it works. Learn the ins and outs of the popular parlor game that sprang directly from the 19th-century spiritualism movement in this classic episode.
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SYSK Selects: How Ouija Boards Work

MSG got a bad rap in the 70s and 80s. But what is it exactly and how bad is it for you? The answers to those questions lie within. 
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What's the deal with MSG?

Barbed wire changed the Western US as much as the railroad and the six-shooter. Before barbed wire arrived, the West was free and open; after, the West became concentrated in the hands of a few big ranchers. No wonder it was called “devil’s rope.”
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Short Stuff: Barbed Wire

Any movie featuring a deranged killer who’s perversely devoted to his mother and makes things out of human skin has a real-life person named Ed Gein to thank for inspiration. He was Buffalo Bill, Norman Bates, and Leatherface all rolled into one.
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Ed Gein: The Serial Killer's Serial Killer

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.
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SYSK Selects: How Icebergs Work

Rubik's Cubes. Ronald Reagan. Jerry Falwell. Just Say No. One of these things was awesome. Take a guess and hop on board the 80s train. 
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The Rubik's Cube Episode

Did you know there are airline codes for pilots and flight attendants? And some of them have to do with dead bodies on board? Learn all about it today!
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Short Stuff: Dead Bodies and Airline Codes

Punk rock really needs about 10 episodes to do it justice, but we'll try and tackle anyway. Learn all about this movement right now. 
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A Brief Overview of Punk Rock

Sleep behaviors are pretty fascinating. Some people snore, some grind their teeth -- and some take a little stroll, or perhaps a drive. In this classic episode, Josh and Chuck investigate how sleepwalking, or somnambulism, works.
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SYSK Selects: How Sleepwalking Works

Ventriloquism – where a skilled performer “throws” their voice, making it seem like a dummy on their knee is talking – has taken a long, circuitous road from early prophets, to witches, then finally to the stage. Get to the bottom of this uncanny trick.
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How Ventriloquism Works

The nuclear waste we produce will be dangerous for a very long time. We’ve figured out how to safely store it in the earth until it’s no longer a biohazard. Now we just have to figure out how to warn humans 10,000 years in the future to stay away from it.
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Nuclear Semiotics: How to Talk to Future Humans

There's a secret war going on around us, and it's happening on a daily basis. The Air Force has a unit specifically designed to carry out and defend against cyberwar. Go deep into this alarming type of war in this classic episode.
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SYSK Selects: Are We in a Cyberwar?

Josh and Chuck have tackled a lot of drugs on the show, but peyote has loomed like a bad Jim Morrison poem. Learn all about this plant today. 
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How Peyote Works

You know that amazing smell when it rains? Kind of clean, kind of earthy, one of a kind? It turns out that a miracle of nature produces it.
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Short Stuff: Petrichor

We’ve been promised solar energy for a while now – where is it? Turns out, it’s been quietly and steadily growing across the world. And with a few breakthroughs, we just may be able to say goodbye to fossil fuels. Learn about sun-based energy in this episode.
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Solar Power: The Future or What?

Shotgun houses are iconic pieces of American architecture: they're long, narrow, and filled with artistic flourishes. But where did they come from? Join Chuck and Josh and explore the mysterious origins of shotgun houses.
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SYSK Selects: What Is a Shotgun House?

As the operation expands it also begins to unravel. Word starts to leak out of the illegal stuff the Reagan administration was up to, Congress and the press investigate and people start to point fingers. Spoiler alert – they all got off scot free.
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Iran-Contra Affair: Shady in the 80s, Part 2

Time zones are a pain. Let's get rid of them! Can we? Sure!
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