Stuff You Should Know

For more than half of the 20th century parents in the industrialized world were freaked out by an unseen waster of youth, the poliovirus. It spread easily and could paralyze children for life or even kill them. Its effects were so horrible that humanity set about ridding if from the Earth. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If you've ever seen a flea circus, then count yourself among the few. It's a dying art, but back in the day they thrilled and delighted young and old alike. Learn all about the tiny big tops in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The robber barons were not a group of evil super villains. OR WERE THEY? Learn all about these titans of industry from the Gilded Age in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

An old coal mine in Pennsylvania caught fire one day in the 60s and it’s been burning ever since. What’s crazy is this happens all the time. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The 1920s were just absolutely nuts. People got into weird fads really intensely and one of the strangest of all was flagpole sitting. It’s just what it sounds like – sitting on top of a flagpole for as long as you can. One man sat above them all. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Well-planned landfills have only recently come into widespread use. Recently, waste managers have found that they work a little too well and now the landfill is being reinvented. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Essential oils are from plants and they can help the human body in a lot of ways. There are also many false medical claims. Learn all the ins and outs today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

You know the at symbol? This thing: @? There’s a name for it, just not in English. We just call it the at symbol. But other countries – stand back! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The KGB was the notorious strong arm of the Kremlin. Run afoul and you died. Learn all about them today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Guessing is a weird thing. For millennia, it could have meant the difference between life and death. Now it's not as vital, but we still do it every day, whether behind the wheel of a car, or judging what another person might be feeling. In this classic episode, learn everything we know about the brain and how it manages this odd, very human act. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

There is maybe nothing that sounds more boring than hearing two people talk about soil, but friend, prepare to be amazed at the details of what makes this amazing substance the life blood of Earth itself! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Why are some words funnier than others? Well, one man has sought to figure that out. We'll tell you all about him and his project in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Researchers have noticed that as incidence of anger increases so too has teeth grinding, known clinically as bruxism. That’s a problem because when people grind their teeth, especially when they’re sleeping, they can wear them down to nubs. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

There is a lot – A LOT – to juggling and Chuck and Josh go over the lion’s share of it in this classic episode. Delve into the deep history, physics, how-tos and different types of juggling in this surprisingly sweeping look at a putatively innocuous pastime. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Matcha is something else, healthy and delicious and all the rage. Learn all about this trendy beverage today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A gaggle of geese. A murder of crows. Nouns of assemblage are awesome and we talk about them for about 12 minutes in today's Short Stuff installment. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Sure you know all about ultrasound. You can see pictures of little babies right there cozy in the womb just by waving a magic plastic stick over the mom’s tummy. And magic is basically right. Believe us. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

People often ask us how we do our research. We're not going to disclose all of our secrets, but we'll give you some tips on how to root out the bad studies from the good ones. Learn all about shady studies and reporting in this classic episode! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

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Haint Blue is a kind of robin's egg color that you might commonly find on porches of the low country of the Southeastern United States. But what does it have to do with ghouls and ghosts? Listen and learn! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.