Stuff You Should Know

Before the internet could show you anything in the universe - including stuff it made up - people had few opportunities to have their minds blown. But every few years, somewhere in the world nations would gather and show off the cool stuff they invented.

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You might be familiar with the outlaw Johnny Ringo from the movie Tombstone. He was indeed a real-life black hat gunslinger, and a tragic figure at that.

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There was a time less than 100 years ago when you could exchange your paper currency at the bank for actual gold. Gave folks a sense of stability, it did. Depending on your view, we either ruined or built our economies when money became just paper.

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Dopamine is perhaps the most talked-about, most misunderstood biochemical in our bodies. It’s linked to not only addiction and depravity, but also focus, motivation, and living a productive life. How can one molecule be so many things to so many people? Find out all about it in this classic episode.

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Back in 1973 a male chauvinist played tennis against champion Billie Jean King. This is that story.

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What’s a MacGuffin? We don’t know. No one knows. But it has to do with movies and that’s fun to talk about.

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Stanford University was co-founded by Jane Stanford. Not long after she was murdered and it was covered up. We'll probably never know what really happened. Listen in today.

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Free range parenting is all about giving your child the freedom to play and explore life on their own. Are there benefits? Sure. Do some people hate the concept? Yes! Listen to this classic episode and learn right here. 

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The Flexner Report shook up medicine in the United States when it was released in 1910 and it's never been the same since. For better or worse.

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Back in the 1800s, people had an outsized fear of being buried alive. Enter... THE SAFETY COFFIN!

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If you’ve ever been out of your house you’ve probably been in a crowd before. They can be as mundane as an elevator full of people or as consequential as a mass of protesters. But did you know there’s psychology to crowds? And they follow fluid dynamics?

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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. In this classic episode, learn about the man who reluctantly but bravely became the source of the divide between religion and science.

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It turns out that lasers are even cooler than they look. And as far as acronyms go, they’re pretty solid in that respect too. There’s way too much cool stuff about lasers to tease here so listen to this old school SYSK episode and let lasers blow away.

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In the late 90s, a strange musical instrument was excavated under the streets of CDMX. Listen in to learn all about the Aztec Death Whistle. 

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Humans have all sorts of weird quirks that cause us to do silly things and make bad decisions. It’s not our fault though. Our brains are wired that way. Learn about the psychology of cognitive biases in this episode.

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If look into the mythology of just about any culture in the world, you will find a myth about a great flood that destroyed humanity and submerged the Earth in the distant past. Does this mean that a great flood actually happened? Listen to this classic episode to explore the possibilities with Josh and Chuck.

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The Cajun Navy was formed after Hurricane Katrina and really got its legs after the Louisiana flood of 2016.  They save a lot of lives, but some fear the pitfalls of "vigilante heroism." Learn all about this group of do-gooders today. 

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Have you ever cried way longer than usual when you were in a yellow room? You’ve been smacked by color psychology my friend and it’s got your number.

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Helen Keller and Anne Sullivan were one of the most amazing non-magical duos in history. Imagine living trapped in your own mind – unable to see or hear – and then imagine learning to read, traveling the world, and becoming an ambassador of peace.   

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