Stuff You Should Know

It’s an understated miracle that humans can get across ideas to one another by saying things out loud. We’re strangely good at not constantly talking over each other, interrupting one another, and correcting misunderstandings. All just by conversing! See omnystudio.com/listener for privacy information.

One of the last uncontacted people in the world live in the Bay of Bengal and they have made it clear they don’t want you to visit.See omnystudio.com/listener for privacy information.

Aussie James Harrison gave blood close to 1,200 times over a 60 year period and saved 2.5 million babies in the process. That makes him a hero. See omnystudio.com/listener for privacy information.

If you’ve ever found your blood pressure rising because some guy down the street doesn’t know how to keep the trigger on a leaf blower pulled all the way, then you’ve experienced noise pollution. Not only is it annoying, it turns out it’s deadly too! Learn all about it in this classic episode.See omnystudio.com/listener for privacy information.

In the 1960s, America took stock of itself when scores of low-income cities broke out in riots. It found that racism was at the root of many social problems. Instead of addressing the underlying issues, the country decided instead to militarize the police.See omnystudio.com/listener for privacy information.

Why does water seem to freeze faster when it starts out warmer?See omnystudio.com/listener for privacy information.

E-e-e-eek! E-e-e-eek, we say! Adding to the tradition of our wonderful animal episodes we contribute this amazing installment on one of the all-time great sea creatures, the dolphin! Attach a sponge to your rostrum and dive in with Josh and Chuck!See omnystudio.com/listener for privacy information.

A pair of old timey fossil hunters had a rootin’ tootin’ rivalry that spilled from academic journals into the American Wild West - where fossils were dynamited and employees turned double agent. Learn about the two-fisted origins of American paleontology in this classic episode.See omnystudio.com/listener for privacy information.

Blue zones are areas where people supposedly have more 100+ year-olds than average. But is it all based on faulty records?See omnystudio.com/listener for privacy information.

An amazing case of an early modern mass sighting of UFOs came in Nuremberg, Germany in 1561. Except it wasn’t that at all.See omnystudio.com/listener for privacy information.

Crooked teeth have always been a thing, but it took us a long time to do something about it. Learn about the twisted history of orthodontics today!See omnystudio.com/listener for privacy information.

In December 1900 three lighthouse keepers vanished without a trace from a deserted island in Scotland. To this day no one knows exactly what happened to them. Find out all about this strange situation in this classic episode.See omnystudio.com/listener for privacy information.

Private equity is a business operation where companies are bought and run at their leanest to maximize returns for a handful of investors. It can be a lifeline for a flailing company or run it into the ground. Either way, PE firms make out like bandits.See omnystudio.com/listener for privacy information.

Why aren't there lemurs in Africa? That question created a whole theory about a lost continent. Turns out it's not true.See omnystudio.com/listener for privacy information.

In 1922, a pastor and his mistress were murdered in New Jersey. Nobody was ever convicted of the crime even though it seems clear who did it. See omnystudio.com/listener for privacy information.

Rape kits are simple forensic evidence collection kits used when someone is sexually assaulted. But the story is deeper than this. Learn all about rape kits, the sad backlog problem, and what you can do to help, in this classic episode. See omnystudio.com/listener for privacy information.

In part two of Heavy Metal Week Josh and Chuck break down how specialized heavy metal music has become, talk about some of the great album covers, look at how metal hits the brain, and explain the sad death of guitar great Randy Rhoads.See omnystudio.com/listener for privacy information.

Metal fans have many ways to express themselves, but none are as metal as throwing the devil horns. But who did it first?See omnystudio.com/listener for privacy information.

Some of the most talented musicians in the world play heavy metal, some of the hardest-hitting music ever made. In this episode Chuck and Josh wade into the history of the genre, and try to get to the bottom of where the name came from.See omnystudio.com/listener for privacy information.

In the absence of an official explanation of why flight MH 370 disappeared in 2014, conjecture and conspiracy theories have filled the vacuum. Find out the current state of things in this classic episode.See omnystudio.com/listener for privacy information.

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. Listen to this classic episode and find out more about what exactly happened.See omnystudio.com/listener for privacy information.

What if we could take all the trash and waste we generate every year – gigatons worth – and used it again as raw materials. What we would have is a closed circle, one where we have everything we need without taking anything else from nature. See omnystudio.com/listener for privacy information.

Marianne Bachmeier committed a shocking act of violence in court in Germany in 1981 to avenge the murder of her young daughter. Many people understood.See omnystudio.com/listener for privacy information.

The VW Beetle is the best selling car of all time. The story behind its creation is a bit complicated though. See omnystudio.com/listener for privacy information.

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Child prodigies are unique in that they achieve adult levels of achievement, but do not typically excel in adulthood. Why? Who knows. See omnystudio.com/listener for privacy information.

The food we eat – especially the junk food – is a highly engineered technical marvel that’s designed to make you want nothing other than more! more! more! Learn about how food scientists make that possible by hijacking our brains.See omnystudio.com/listener for privacy information.

This is not about smoking or lawsuits or lung cancer. This is about the cigarette itself, a truly unique and destructive invention.See omnystudio.com/listener for privacy information.

The Church of the SubGenius is a religion, but really a parody of religion. Learn all about this group of weirdo outsiders in this classic episode.See omnystudio.com/listener for privacy information.

He’s been called the father of Pakistan’s nuclear bomb and a real-life Bond villain and depending on where you’re from, he’s a national hero or was the world’s most dangerous arms dealer - who made a career of selling his knowledge of nuclear weapons.See omnystudio.com/listener for privacy information.

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We have boycotts coming out of our ears these days, but did you know they go back a couple centuries? And that it’s named after the first poor sap to be boycotted? We follow the history of boycotts up today’s boycott superstars and ask how well they work.See omnystudio.com/listener for privacy information.

The word stoic has taken on its own meaning apart from the philosophical movement which gave it life. In this classic episode, learn all about the early stoics, what the philosophy is all about and where the movement stands today.See omnystudio.com/listener for privacy information.

Alchemy evokes sorcerers working by candlelight combining potions to create magical items, real Dungeons & Dragons stuff. But alchemy gets a bad rap. Alchemists had lofty goals like curing poverty and their work laid the foundation for science to come.See omnystudio.com/listener for privacy information.

Bengal cats are gorgeous animals, but they are bought and sold on the designer pet market, so booo. Learn about these hybrid kitties today.See omnystudio.com/listener for privacy information.

One of the most bizarre stories to emerge from the cult radio show Coast to Coast AM – and that’s really saying something – isn’t about UFOs or bigfoot, but a mysterious hole in the ground with some very unusual properties. Top that, History Channel!See omnystudio.com/listener for privacy information.

Child labor is no laughing matter. Even though we've taken care of it in the USA (mostly), it's still an issue around the globe. Listen to this classic episode and learn!See omnystudio.com/listener for privacy information.

Before Facebook and MySpace, before even Friendster, there was SixDegrees. Dive in today to learn about the first social media site, that was a few years too early.See omnystudio.com/listener for privacy information.

8 tracks were during vinyl, but preceded cassettes. Why? So people could listen to their music on the go. Check out this antiquated medium today.See omnystudio.com/listener for privacy information.

Sherlock Holmes is perhaps the most famous fictional character in the world, and for good reason. More than a hundred years on, Arthur Conan Doyle’s 60 Holmes stories are still in print and he is the most portrayed human literary character in history.See omnystudio.com/listener for privacy information.

Coelacanths are incredibly interesting as far as fish go. For one, they were thought to have gone the way of the dinosaur, along with the dinosaur. They also give birth to live fish and tend to dwell more than 800 feet below the ocean's surface. And this is just the tip of the iceberg. Learn all about these fascinating creatures in this classic episode.See omnystudio.com/listener for privacy information.

USAID has saved tens of millions of lives across the globe since its inception. But those days are over. Learn all about this soon-to-be-gone program.See omnystudio.com/listener for privacy information.

There was a time – a glorious time – when you could turn the dial in any city in the US and hear popular songs rearranged to be the most pleasant version of themselves. This was the Beautiful Music format and we are spiritually poorer for having lost it.See omnystudio.com/listener for privacy information.

Sadly, Phil Hartman may be best remembered for being murdered in his sleep by his wife. This episode covers that, but mostly aims to stoke the memories of the legendary talent's life and work. See omnystudio.com/listener for privacy information.

Tin Pan Alley was an area of New York around the beginning of the 20th Century that served as ground zero for the earliest iterations of the music publishing industry. Learn all about this unique place and time in this classic episode.See omnystudio.com/listener for privacy information.

Titicut Follies is a documentary made famous by its banning. But why was it banned? And what was it even about? Listen in to learn all you need to know about this infamous doc. See omnystudio.com/listener for privacy information.

There have been many inventions that have advanced filmmaking, but maybe none as important as the steadicam. Invented in the mid-70s, it literally changed the way movie making happened, and made the impossible possible. Learn about the fascinating history behind this amazing technology today.See 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.See omnystudio.com/listener for privacy information.

Once in a while a movie comes along that's so forward-thinking it changes the way that horror is done. A new subgenre is spawned, new tropes are established, and audiences are more terrified than ever.See 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.See omnystudio.com/listener for privacy information.

An estimated 50,000 films were made worldwide in 2009 alone. Many are surely clunkers, but in this episode Chuck and Josh talk about the ones that emerged throughout cinema history to change the course of all movies that followed. Get your popcorn and lean back while you enjoy this classic episode.See omnystudio.com/listener for privacy information.